Make-up method using a magnetic composition containing at least one tinting agent having optical properties which are sensitive to an external stimulus
Abstract
Makeup procedure of keratin materials, particularly skin, lips or pimples, comprising the following steps: - depositing at least one cosmetic composition on this keratin material through a non-magnetic cosmetic applicator, this cosmetic composition comprising: - at least one body that has a non-zero and mobile magnetic susceptibility under the effect of a magnetic field, - at least one coloring agent that produces a chemical color by absorption of at least a part of the visible spectrum, - exposing at least partially the composition to a magnetic field to modify the orientation and / or displace at least a part of the magnetic bodies, the magnetic field being applied to form at least one motif on the composition.
Term
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Projected expiry passed 8 July 2025, 1.2 years ago.
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49 claims: 13 independent, 36 dependent
- 1ES 2 602 181 T3 REIVINDICACIONES 1. Procedimiento de maquillaje de materias queratínicas, particularmente como la piel, los labios o las faneras, que comprende las etapas siguientes:- depositar sobre las materias queratínicas a través de un aplicador cosmético no magnético al menos una composición cosmética, esta composición cosmética que comprende: - al menos un cuerpo que presenta una susceptibilidad magnética no nula y móvil bajo el efecto de un campo magnético, - al menos un agente de coloración que produce un color químico por absorción de por lo menos una parte del espectro visible, - exponer al menos parcialmente la composición a un campo magnético para modificar la orientación y/o desplazar al menos una parte de los cuerpos magnéticos, el campo magnético siendo aplicado para formar al menos un motivo sobre la composición.
- 2Procedimiento según la reivindicación 1, en el cual el campo magnético se ejerce por un imán permanente.
- 3Procedimiento según la reivindicación 1, en el cual el campo magnético se ejerce por un electroimán.
- 4Procedimiento según la reivindicación 2 o 3, en el cual el imán o electroimán se acciona en rotación.
- 5Procedimiento según la reivindicación 3, en el cual el electroimán se alimenta por al menos una pila o un acumulador.
- 6Procedimiento según la reivindicación 3, en el cual el electroimán se alimenta por intermitencia en el momento de la formación de un motivo.
- 7Procedimiento según una cualquiera de las reivindicaciones precedentes, en el cual el campo magnético se aplica hasta obtener un aspecto congelado de la composición.
- 8Procedimiento según una cualquiera de las reivindicaciones 1 a 6 en el cual el campo magnético se aplica durante una duración inferior a la que provoca la orientación y/o el desplazamiento definitivo de la totalidad de los cuerpos magnéticos de la región expuesta.
- 9Procedimiento según una cualquiera de las reivindicaciones precedentes, en el cual el campo magnético se ejerce sucesivamente sobre diferentes regiones del soporte revestidas de la composición.
- 10Procedimiento según la reivindicación precedente, caracterizado por el hecho de que el campo magnético se ejerce sucesivamente sobre las regiones separadas del soporte.
- 11Procedimiento según una cualquiera de las reivindicaciones precedentes, en el cual una región al menos del soporte revestido de la composición no está expuesta al campo magnético.
- 12Procedimiento según la reivindicación precedente, en el cual el aplicador incluye un pincel, una boquilla flexible o una espuma.
- 13Procedimiento según una cualquiera de las reivindicaciones precedentes, caracterizado por el hecho de que los cuerpos magnéticos tienen un pigmento.
- 14Procedimiento según una cualquiera de las reivindicaciones precedentes, caracterizado por el hecho de que los cuerpos magnéticos tienen fibras o cadenas de partículas.
- 15Procedimiento según una cualquiera de las reivindicaciones precedentes, en el cual el agente de coloración incluye un pigmento.
- 16Procedimiento según la reivindicación 13 o 15, en el cual el pigmento es un pigmento compuesto.
- 17Procedimiento según la reivindicación 16, en el cual el pigmento compuesto incluye un núcleo inorgánico y un revestimiento al menos parcial de por lo menos una materia colorante orgánica.
- 18Procedimiento según la reivindicación 17, en el cual el núcleo presenta un tamaño medio comprendido entre 1 nm y 100 nm.
- 19Procedimiento según la reivindicación 17 o 18, en el cual el núcleo inorgánico presenta un índice de refracción superior o igual a 2.
- 20Procedimiento según una cualquiera de las reivindicaciones 17 a 19, en el cual el núcleo inorgánico presenta ES 2 602 181 T3 una superficie específica comprendida entre aproximadamente 1 m 2 /g y aproximadamente 1000 m 2 /g.
- 21Procedimiento según la reivindicación 20, en el cual la superficie específica del núcleo inorgánico está comprendida entre aproximadamente 10 m 2 /g y aproximadamente 600 m 2 /g.
- 22Procedimiento según la reivindicación 20, en el cual la superficie específica del núcleo inorgánico está comprendida entre aproximadamente 20 m 2 /g y aproximadamente 400 m 2 /g.
- 23Procedimiento según una cualquiera de las reivindicaciones 18 a 22, en el cual el núcleo inorgánico incluye un óxido metálico elegido entre un óxido de titanio, de circonio, de cerio, de zinc, de hierro, de azul férrico, de cromo y de aluminio.
- 24Procedimiento según una cualquiera de las reivindicaciones 17 a 22, en el cual el óxido metálico es elegido entre un óxido de titanio, de hierro, de cerio, de circonio, de zinc, y de aluminio.
- 25Procedimiento según una cualquiera de las reivindicaciones 17 a 24, en el cual el núcleo inorgánico incluye el dióxido de titanio.
- 26Procedimiento según una cualquiera de las reivindicaciones 17 a 25, en el cual la proporción másica de la materia colorante orgánica está comprendida entre aproximadamente 10 y aproximadamente 500 partes en peso para 100 partes en peso del núcleo inorgánico.
- 27Procedimiento según una cualquiera de las reivindicaciones 17 a 26, en el cual dicho al menos un pigmento compuesto incluye al menos un aglomerante que contribuye a la fijación de la materia colorante sobre el núcleo inorgánico.
- 28Procedimiento según la reivindicación 27, en el cual el aglomerante es orgánico.
- 29Procedimiento según la reivindicación 27 o 28, en el cual el aglomerante incluye al menos uno de un compuesto siliconado, de un compuesto polimérico, de un compuesto oligomérico y similar que comprende al menos uno de un organosilano, de un organosilano fluoroalquilado, de un polisiloxano, de un agente enlazador, o de una mezcla de éstos.
- 30Procedimiento según una cualquiera de las reivindicaciones 1 a 14, en el cual el agente de coloración incluye un colorante hidrosoluble o liposoluble.
- 31Procedimiento según la reivindicación 1, en el cual el agente de coloración presenta una susceptibilidad magnética no nula.
- 32Procedimiento según la reivindicación 1, en el cual el agente de coloración presenta una susceptibilidad magnética nula.
- 33Procedimiento según una cualquiera de las reivindicaciones precedentes, en el cual la composición incluye al menos un solvente volátil.
- 34Procedimiento según una cualquiera de las reivindicaciones precedentes, en el cual la composición incluye al menos un agente filmógeno.
- 35Kit de maquillaje de las materias queratínicas, que comprende:- un dispositivo magnético que permite generar un campo magnético, - un aplicador cosmético no magnético, - una composición cosmética que comprende - cuerpos magnéticos que presentan una susceptibilidad magnética no nula y móviles bajo el efecto de un campo magnético, - al menos un agente de coloración que produce un color químico por absorción de por lo menos una parte del espectro visible, - el dispositivo magnético siendo capaz de crear un campo magnético susceptible, cuando las materias queratínicas recubiertas de un depósito de dicha composición se introducen en dicho campo magnético, de modificar la orientación y/o la posición de los cuerpos magnéticos dentro del depósito, el campo magnético siendo aplicado para formar al menos un motivo sobre la composición.
- 36Kit según la reivindicación precedente, en el cual la composición es un esmalte de uñas.
- 37Kit según la reivindicación 35, en el cual la composición es una base de maquillaje.
- 38Kit según la reivindicación 35, en el cual la composición es un producto para aplicar sobre los labios. ES 2 602 181 T3
- 39Kit según la reivindicación 35, en el cual la composición es un producto para aplicar sobre las fibras queratínicas.
- 40Kit según una cualquiera de las reivindicaciones 35 a 39, en el cual los cuerpos magnéticos tienen un pigmento.
- 41Kit según la reivindicación 35, en el cual el agente de coloración incluye un pigmento compuesto.
- 42Kit según la reivindicación 41, en el cual el pigmento compuesto incluye un núcleo inorgánico y un revestimiento al menos parcial de por lo menos una materia colorante orgánica.
- 43Kit según la reivindicación 41, en el cual el núcleo presenta un tamaño medio comprendido entre 1 nm y 100 nm.
- 44Kit según una de las reivindicaciones 42 y 43, en el cual el núcleo inorgánico presenta una superficie específica comprendida entre aproximadamente 1 m 2 /g y aproximadamente 1000 m 2 /g, mejor entre aproximadamente 10 m 2 /g y aproximadamente 600 m 2 /g, o también mejor entre aproximadamente 20 m 2 /g y aproximadamente 400 m 2 /g.
- 45Procedimiento según una cualquiera de las reivindicaciones 42 a 44, en el cual el núcleo inorgánico incluye un óxido metálico elegido entre un óxido de titanio, de circonio, de cerio, de zinc, de hierro, de azul férrico, de cromo y de aluminio.
- 46Procedimiento según una cualquiera de las reivindicaciones 42 a 45, en el cual el óxido metálico es elegido entre un óxido de titanio, de hierro, de cerio, de circonio, de zinc, y de aluminio.
- 47Procedimiento según una cualquiera de las reivindicaciones 42 a 46, en el cual dicho al menos un pigmento compuesto incluye al menos un aglomerante que contribuye a la fijación de la materia colorante orgánica sobre el núcleo inorgánico, particularmente un aglomerante orgánico.
- 48Procedimiento según la reivindicación 47, en el cual el aglomerante incluye al menos uno de un compuesto siliconado, de un compuesto polimérico, de un compuesto oligomérico y similar que comprende al menos uno de un organosilano, de un organosilano fluoroalquilado, de un polisiloxano, de un agente enlazador, o de una mezcla de éstos.
- 49Kit según una cualquiera de las reivindicaciones 35 a 48, en el cual el dispositivo magnético incluye un imán o electroimán.
Independent claims49
586 paragraphs in 48 sections, as filed
ES 2 602 181 T3
DESCRIPTION
Make-up procedure by means of a magnetic composition containing at least one coloring agent that produces a color by absorption of at least a part of the visible spectrum
[0001] The present invention relates to a procedure for making up a support, natural such as the skin, appendages or lips, or artificial such as false nails, as well as a kit for the execution of this procedure.
[0002] There is a need to benefit from new aesthetic effects in the makeup domain and the invention relates to responding to this need.
[0003] EP 1 264 562 describes a device comprising fibers that have magnetic properties and an applicator formed by a brush that also has magnetic properties, in order to favor the loading of the brush in product, by attracting the product to the brush bristles.
The product can also contain chips that have magnetic properties and the applicator can interact magnetically with these chips, to bring them in a particular orientation at the time of application, in order to promote the sliding of the applicator.
MAKEUP PROCESS
According to one of its aspects, the object of the invention is a method for making up a support, particularly such as the skin, lips or appendages, which comprises the following steps:
- depositing on the support through a non-magnetic cosmetic applicator at least one cosmetic composition, this cosmetic composition comprising:
- at least one body exhibiting non-zero magnetic susceptibility and mobile under the effect of a magnetic field,
- at least one coloring agent that produces a chemical color by absorbing at least a part of the visible spectrum,
- at least partially exposing the composition to a magnetic field so as to orient and / or displace at least a part of the magnetic body, the magnetic field being applied to form at least one pattern on the composition.
[0005] A color produced by absorption of light is still sometimes described as a chemical color, as opposed to the colors produced by a phenomenon of interference, including diffraction, also called physical colors. The phenomenon of absorption of light energy by the coloring agent can rest on electronic transitions.
[0006] When magnetic bodies add color, a change in their orientation under the effect of the magnetic field can lead to a change in the appearance of the composition.
[0007] When the magnetic body is displaced, the shape of the composition deposit can be affected, which allows creating a relief for example.
[0008] At the time of application of the composition, it may not be exposed to the magnetic field.
The latter can be exercised once the application has been made.
[0009] The magnetic field is applied to form at least one pattern on the composition, this being for example linked to the geometry of the field lines.
The invention thus makes it possible to create new make-up effects with a cosmetic composition, allowing for example to make the motifs in relief or by conferring a relief impression or various other motifs, geometric or not.
The magnetic field can still be applied in such a way as to model the clarity and / or color of at least a region of the face or body on which the composition has been applied.
[0012] For example, when the cosmetic composition is a make-up base, the orientation of the magnetic bodies under the effect of the magnetic field makes it possible to modify the clarity of the composition and thus to model the appearance of the face according to the regions exposed to it. magnetic field, in particular to make a make-up of the light / dark type, without brutal transition if desired between the light regions and the dark regions.
The magnetic field can for example be applied in a way to shade the sides of the face in order to make it appear thinner than it actually is.
[0013] In an exemplary embodiment of the invention, a layer of a second cosmetic composition is applied over the first, containing the magnetic bodies, for example in order to obtain a depth, shine, smoothing or other effect.
ES 2 602 181 T3
This second composition can be transparent, colored or not.
The second composition is for example intended for application to the lips or nails.
The second composition can also be applied to the support before the first composition, for example to create a colored background or improve the stability of the first composition and / or comfort.
[0014] The magnetic field can be applied until a frozen appearance of the composition containing the magnetic bodies is obtained, that is to say that the appearance of the composition stops evolving although the magnetic field persists. Alternatively, the magnetic field can be applied for a duration less than that which is causing the orientation and / or the definitive displacement of all the magnetic bodies in the exposed region.
[0015] When the clarity and / or color of the first composition progressively changes under the effect of the magnetic field, the user can stop subjecting the magnetic bodies to the field when the composition presents the desired appearance.
[0016] The magnetic field can be exerted successively on different regions of the coated support of the composition.
[0017] The magnetic field can be exerted on the separate regions of the support, in order for example to create separate patterns.
[0018] A region of the support coated with the composition can be not exposed to the magnetic field, so as not to modify in this region the appearance of the composition after its deposit.
Two regions of the support can be unevenly exposed to the magnetic field.
[0020] The composition can be applied in various ways, through a non-magnetic cosmetic applicator, chosen for example from brushes, flexible joints and foams, fabrics, nonwovens, brushes or combs.
[0021] In an exemplary embodiment of the invention, the composition is applied to the support through an openwork mask.
This can, for example, make it possible to produce a predetermined pattern corresponding to the shape of the cutwork.
At least one region of the support covered by the composition can then be exposed to the magnetic field.
[0022] The composition can adopt a state that prevents any new change of orientation of the magnetic bodies under the effect of a magnetic field after a given drying time.
It is for example the case of a nail polish.
The orientation of the magnetic bodies can still, in certain cases, be modified at any time, particularly when the first composition does not dry or has a very long drying time.
This can be the case for example with a make-up base.
Magnetic bodies can take various forms.
MAGNETIC BODIES
[0024] The expression "magnetic bodies" should not be understood in a limiting manner and covers particles, fibers or agglomerates of particles and / or fibers, in any way, that present a non-zero magnetic susceptibility.
The concentration of magnetic bodies in the composition is, for example, between approximately 0.05% and approximately 50% by mass, particularly between approximately 0.1% and approximately 40% by mass, better between approximately 1% and approximately 30%. % by mass.
[0026] The applied composition can contain the magnetic fibers or other aspherical bodies, such as chains of particles or fibers.
[0027] Preferably, the magnetic bodies do not have permanent magnetization in the absence of a magnetic field.
Magnetic bodies can contain any magnetic material that has a sensitivity to the lines of a magnetic field, that this field is produced by a permanent magnet or obtained from an induction, this material being, for example, chosen from nickel, cobalt , iron, its alloys and oxides, particularly Fe3O4, and also gadolinium, terbium, dysprosium, erbium, its alloys and oxides.
The magnetic material can be of the "soft" or "hard" type.
The magnetic material can in particular be soft iron.
ES 2 602 181 T3
Magnetic bodies may or may not have a multilayer structure, comprising at least one layer of a magnetic material, such as iron, nickel, cobalt, their alloys and oxides, particularly Fe<sub>3</sub>O4.
The magnetic bodies are preferably aspherical, for example having an elongated shape.
Thus, when this body is subjected to the magnetic field, they tend to orient themselves with their longitudinal axis in the alignment of the field lines, and undergo a change in orientation that results in a change in the appearance of the composition.
When the magnetic bodies are substantially spherical particles, their appearance is preferably inhomogeneous, so that a change in orientation induces a change in appearance.
The dimension of the bodies, whatever their shape, is for example between 1 nm and 10 mm, better between 10 nm and 5 mm, better still between 100 nm and 1 mm, for example between 0.5 pm and 300 pm or 1 pm and 150 pm.
The dimension is this given by the statistical distribution to the middle of the population, called D50.
When the bodies are particles that do not have an elongated shape or that have an elongated shape with a rather weak shape factor, the dimension of the particles is for example less than 1 mm.
Magnetic bodies are, for example, magnetic pigments.
Magnetic pigments
[0035] Pigments more particularly suitable are nacres comprising iron oxide Fe3O4. Pigments that have magnetic properties are, for example, those marketed under the trade names COLORONA BLACKSTAR BLUE, COLORONA BLACKSTAR GREEN, COLORONA BLACKSTAR GOLD, COLORONA BLACKSTAR RED, CLOISONNE NU ANTIQUE SUPER GREEN, MICRONA MATTE BLACK (17437), MICA BLACK (17260), COLORONA PATINA SILVER (17289) and COLORONA PATINA GOLD (117288) from MERCK or also FLAMENCO TWILIGHT RED, FLAMENCO TWILIGHT GREEN, FLAMENCO TWILIGHT GOLD, FLAMENCO TWILIGHT BLUE, TIMICA NU ANTIQUE SILVER 110 AB, TIMICA NU ANTIQUE GOLD 212 GB, TIMICA NU-ANTIQUE COPPER 340 AB, TIMICA NU ANTIQUE BRONZE 240 AB, CLOISONNE NU ANTIQUE GREEN 828 CB, CLOISONNE NU ANTIQUE BLUE 626 CB, GEMTONE MOONSTONE G 004, CLOISONNE NU ANTIQUE RED 424 CB, CHROMA-LITE BLACK (4498), CLOISONNE NU ANTIQUE ROUGE FLAMBE (code 440 XB), CLOISONNE NU ANTIQUE BRONZE (240 XB), CLOISONNE NU ANTIQUE GOLD (222 CB) and CLOISONNE NU ANTIQUE COPPER (340 XB) of the ENGELHARD company.
[0036] Also by way of example of a magnetic pigment capable of entering into the formulation of the composition, mention may be made of black iron oxide particles, for example those sold under the name SICOVIT black E172 by BASF.
[0037] Magnetic pigments can still contain metal iron, particularly passivated soft iron, for example obtained from carbonyl iron by carrying out the process described in US patent 6 589 331, the content of which is incorporated by reference.
These particles may contain a layer of a surface oxide.
[0038] The soft iron-based particles are marketed in particular under the name STAPA® WM IRON VP 041040 by the company ECKART.
Magnetic fibers
The term "fibers" designates usually extended bodies, which have, for example, a shape factor ranging from 3.5 to 2500 or from 5 to 500, for example from 5 to 150.
The shape factor is defined by the L / D ratio, where L is the length of the fiber and D is the diameter of the circle in which the largest cross section of the fiber is inscribed.
The cross section of the fibers can be inscribed for example in a circle with a diameter ranging from 2 nm to 500 pm, for example ranging from 100 nm to 100 pm, even from 1 pm to 50 pm.
The fibers can have, for example, a length ranging from 1 pm to 10 mm, for example from 0.1 mm to 5 mm, even from 0.3 mm to 3.5 mm.
The fibers can have a mass ranging, for example, from 0.15 to 30 deniers (mass in gram for 9 km of yarn), for example from 0.18 to 18 deniers.
The cross-sectional shape of the fibers can be any, for example circular or polygonal,
ES 2 602 181 T3 particularly square, hexagonal or octagonal.
[0044] The composition can contain filled or hollow fibers, independent or linked together, for example braided.
[0045] The composition can contain the fibers that have blunt and / or rounded ends, for example by polishing.
The fibers may not see their shape significantly modified when they are introduced into the composition, being, for example, initially rectilinear and sufficiently rigid to retain their shape.
Alternatively, the fibers may have a flexibility that allows them to deform appreciably within the composition.
The fibers can contain a non-zero content, and can go up to 100%, of a magnetic material chosen from soft magnetic materials, hard magnetic materials, particularly based on iron, zinc, nickel, cobalt or Manganese and its alloys and oxides, particularly Fe3O4, rare earths, barium sulfate, iron silicon alloys, possibly loaded with molybdenum, Cu2MnAl, MnBi, or a mixture of these, this list is not limiting.
When the composition includes the fibers with the magnetic particles, the latter can be present for example at least on the surface of the fiber, even on the surface of the fibers only, within the fiber only or even be dispersed within the fiber in a substantially homogeneous way.
The fibers may contain for example a non-magnetic core with a plurality of magnetic particles on its surface.
The fibers can even contain a synthetic matrix that contains a plurality of magnetic grains dispersed within it.
[0051] In its case, a synthetic material charged with magnetic particles can itself be enveloped by a non-magnetic shell.
Such a crust constitutes, for example, a barrier that isolates the magnetic matter (s) from the environment and / or can provide color.
The fibers can contain a monolithic magnetic core and be covered by a non-magnetic crust, or this can be the other way around.
The composition can contain the fibers made by extrusion or coextrusion of one or more polymeric materials, particularly thermoplastic and / or elastomeric materials.
One of the extrudates may contain a charge of dispersed magnetic particles.
The fiber can contain a synthetic material chosen from polyamides, PET, acetates, polyolefins, particularly PE or PP, PVC, amide block polyester, plasticized Rilsan®, elastomers, particularly polyester elastomers, PE elastomers, silicone elastomers , nitrile elastomers or a mixture of these materials, this list is not limiting.
[0054] The composition may contain composite fibers comprising a magnetic core at least partially wrapped by at least one non-magnetic, synthetic or natural material.
The coating of the magnetic core can be made, for example, by coextrusion, around the core, of a shell in a non-magnetic material.
The coating of the core can still be carried out in another way, for example by polymerization in situ.
The core can be monolithic or contain a charge of magnetic grains dispersed in a matrix.
The composition can still contain composite fibers obtained by coating with a synthetic material, charged with magnetic particles, of a non-magnetic, synthetic or natural core, the core being composed for example of a wood fiber, rayon, polyamide, of a vegetable material, of polyolefin, particularly of polyethylene, of Nylon®, of polyimide-amide, of aramid, this list is not limiting.
[0058] The composition may still contain the magnetic composite particles, particularly a magnetic latex.
Magnetic Composite Particles
[0059] A magnetic composite particle is a composite material made up of an organic or mineral matrix and magnetic grains.
ES 2 602 181 T3
Magnetic composite particles can thus contain grains of a magnetic material on their surface and / or within them.
Composite particles can be made up of a magnetic core wrapped in an organic or mineral matrix, or vice versa.
[0060] Magnetic composite particles have, for example, one of the magnetic materials mentioned above.
[0061] The dimension of the magnetic composite particles is, for example, between 1 nm and 1 mm, better between 100 nm and 500 pm, better still between 500 nm and 100 pm.
By "dimension", the dimension given by the statistical granulometric distribution in half of the population is designated, called D50.
[0062] The thesis of C. GOUBAULT, March 23, 2004, incorporated herein by reference, recalls in Chapter 1 the state of the art on magnetic composite particles, and prepares a list of preparation procedures that can be used to prepare magnetic composite particles, namely a separate synthesis of the magnetic grains and of the matrix, a synthesis of the magnetic grains in contact with the matrix or a synthesis of the matrix in the presence of the magnetic grains.
[0063] The KISKER company markets magnetic particles made of mineral matrix, made of silica.
The companies DYNAL, SERADYN, ESTAPOR and ADEMTECH propose magnetic particles composed of an organic matrix, which can also be used in the invention.
[0064] In a more particular way, the company ESTAPOR markets under the reference M1-070 / 60 magnetic latexes made up of ferrite grains uniformly distributed in a polystyrene matrix, this latex comprising 65% iron oxide, the average diameter of the polystyrene particles being 890 nm and the dry matter mass content of 10%.
Ferrofluid
[0065] The composition can contain a ferrofluid, that is to say a stable colloidal suspension of magnetic particles, particularly of magnetic nanoparticles.
[0066] The particles, of a size for example of the order of a few tens of nanometers, are dispersed in a solvent (water, oil, organic solvent), either with the help of a surfactant or a dispersing agent, or through interactions electrostatic.
Ferrofluids are, for example, prepared by grinding ferrites or other magnetic particles until nanoparticles are acquired, which are then dispersed in a fluid containing a surfactant, which is absorbed onto the particles and stabilizes them, or by precipitation in basic medium of a solution of metal ions.
Each particle of the ferrofluid has a magnetic moment determined by the size of the particle and by the nature of the magnetic material.
[0069] Under the action of a magnetic field, the magnetic moments of the particles tend to align themselves along the field lines, with the appearance of a non-zero magnetization in the liquid.
If the field is canceled, there is no hysteresis and the magnetization is canceled.
Beyond a threshold field value, macroscopic changes can also be caused in the liquid, for example the appearance of peaks or a modification of the rheological properties.
The name "ferrofluid" also encompasses an emulsion of ferrofluid droplets in a solvent. Each drop then contains colloidal magnetic particles in stable suspension.
This makes it possible to have a ferrofluid in all types of solvent.
The dimension of the magnetic particles suspended in the ferrofluid is, for example, between 1 nm and 10 pm, better between 1 nm and 1 pm, better still between 1 nm and 100 nm.
By "dimension", the dimension given by the statistical granulometric distribution in half of the population is designated, called D50.
[0072] The ferrofluids marketed by the company LIQUIDS RESEARCH LTD may be mentioned in particular under the references:
• WHKS1S9 (A, B or C), which is an aqueous-based ferrofluid comprising magnetite (Fe3O4), with particles 10 nm in diameter.
• WHJS1 (A, B or C), which is a ferrofluid based on isoparaffin and magnetite particles (Fe3O4) of 10 nm
ES 2 602 181 T3 diameter.
• BKS25_dextran, which is a dextran-stabilized water-based ferrofluid, comprising magnetite (Fe3O4) particles of 9 nm in diameter.
Strings of magnetic particles and / or fibers
The composition can contain agglomerates of particles or fibers whose largest dimension, for example the length, is for example between 1 nm and 10 mm, for example between 10 nm and 5 mm, or between 100 nm and 1 mm , or even between 0.5 pm and 3.5 mm, for example between 1 pm and 150 pm.
The dimension designates that given by the statistical granulometric distribution to half of the population, called D50.
[0074] Magnetic particle chains can be obtained for example by assembling colloidal magnetic particles, as described in the publications "Permanently linked monodisperse paramagnetic chains", EM Furst, C. Suzuki, M. Fermigier, AP Gast, Langmuir , 14,7334-7336 (1998), “Suspensions de particules magnétiques”, M. Fermigier, Y. Grasselli, SFP bulletin (105) July 96, and “Flexible magnetic filaments as micromechanical sensors”, C. Goubault, P Jop, M. Fermigier, J. Baudry, E. Bertrand, J. Bibette, Phys. Rev. Lett., 91, 26, 260802-1 to 260802-4 (2003), the contents of which are incorporated by reference.
[0075] It is particularly described in these articles how to proceed to obtain the chains of magnetic latex particles that comprise a polystyrene matrix with the grains of iron oxide and functionalized on the surface, permanently bonded to each other following a chemical reaction. , particularly covalent bonds between the surfaces of adjacent particles; A procedure for acquiring ferrofluid emulsion droplet chains, linked together by interactions of a physical nature, is also described.
The length as well as the diameter of the permanent chains thus obtained can be controlled.
Such magnetic chains constitute anisotropic magnetic objects that are orientable and movable under the effect of a magnetic field.
[0076] The dimensions of the magnetic chains can respond to the same conditions as the magnetic fibers.
Absorbent coloring agent
[0077] The coloring agent that produces a color by an absorption phenomenon can be constituted by a magnetic or not, organic or inorganic or hybrid pigment comprising both organic matter and inorganic matter.
The coloring agent may or may not be a particulate compound.
[0079] Where appropriate, the particles of the same magnetic pigment constitute both the coloring agent that produces the color by an absorption phenomenon and the magnetic bodies.
[0080] When the coloring agent includes a colorant, this can be chosen from fat-soluble and water-soluble colorants.
Fat-soluble dyes are, for example, Sudan red, DC Red 17, DC Green 6, β-carotene, soybean oil, Sudan brown, DC Yellow 11, DC Violet 2, DC orange. 5, quinoline yellow.
[0082] Water-soluble dyes are for example beet juice and methylene blue.
[0083] The colorants can for example represent 0.1 to 20% of the weight of the first or second composition, even 0.1 to 6%, when they are present.
The coloring agent can also be a lacquer or an organic pigment chosen from the materials below and their mixtures:
• cochineal carmine, • organic pigments of azo, anthraquinone, indigos, xanthenic, pyrene, quinoline, triphenylmethane, fluoran dyes, • organic lakes or insoluble salts of sodium, potassium, calcium, barium, aluminum, zirconium, strontium, titanium, acid dyes such as azo, anthraquinone, indigo, xanthenic, pyrene, quinoline, triphenylmethane, fluoran dyes, These colorants can contain at least one carboxylic or sulfonic acid group.
[0085] Among the organic pigments, mention may be made in particular of those known under the following names: D&C Blue No. 4, D&C Brown No. 1, D&C Green No. 5, D&C Green No. 6, D&C Orange No. 4, D&C Orange n ° 5,
ES 2 602 181 T3
D&C Orange # 10, D&C Orange # 11, D&C Red # 6, D&C Red # 7, D&C Red # 17, D&C Red # 21, D&C Red # 22, D&C Red # 27, D&C Red # 28, D&C Red # 30, D&C Red # 31, D&C Red # 33, D&C Red # 34, D&C Red # 36, D&C Violet # 2, D&C Yellow # 7, D&C Yellow # 8, D&C Yellow # 10, D&C Yellow # 11, FD&C Blue # 1, FD&C Green # 3, FD&C Red # 40, FD&C Yellow # 5, FD&C Yellow # 6.
The coloring agent can be an organic lacquer supported by an organic support such as rosin or aluminum benzoate, for example.
[0087] Among the organic lacquers, mention may be made in particular of those known under the following names: D&C Red # 2 Aluminum lake, D&C Red # 3 Aluminum lake, D&C Red # 4 Aluminum lake, D&C Red # 6 Aluminum lake, D&C Red # 6 Barium lake, D&C Red # 6 Barium / Strontium lake, D&C Red no.6 Strontium lake, D&C Red no.6 Potassium lake, D&C Red no.7 Aluminum lake, D&C Red no.7 Barium lake, D&C Red no.7 Calcium lake, D&C Red no.7 Calcium / Strontium lake, D&C Red # 7 Zirconium lake, D&C Red # 8 Sodium lake, D&C Red # 9 Aluminum lake, D&C Red # 9 Barium lake, D&C Red # 9 Barium / Strontium lake, D&C Red # 9 Zirconium lake, D&C Red # 10 Sodium lake, D&C Red # 19 Aluminum lake, D&C Red # 19 Barium lake, D&C Red # 19 Zirconium lake, D&C Red # 21 Aluminum lake, D&C Red n ° 21 Zirconium lake, D&C Red n ° 22 Aluminum lake, D&C Red n ° 27 Aluminum lake, D&C Red n ° 27 Aluminum / Titanium / Zirconium lake, D&C Red n ° 27 Barium lake, D&C Red n ° 27 Calcium lake, D&C Red n ° 27 Zirconium lake, D&C Red n ° 28 Aluminum lake, D&C Red n ° 30 lake, D&C Red n ° 31 Calcium lake, D&C Red # 33 Aluminum lake, D&C Red # 34 Calcium lake, D&C Red # 36 lake, D&C Red # 40 Aluminum lake, D&C Blue # 1 Aluminum lake, D&C Green # 3 Aluminum lake, D&C Orange n 4 Aluminum lake, D&C Orange # 5 Aluminum lake, D&C Orange # 5 Zirconium lake, D&C Orange # 10 Aluminum lake, D&C Orange # 17 Barium lake, D&C Yellow # 5 Aluminum lake, D&C Yellow # 5 Zirconium lake, D&C Yellow n ° 6 Aluminum lake, D&C Yellow n ° 7 Zirconium lake, D&C Yellow n ° 10 Aluminum lake, FD&C Blue n ° 1 Aluminum lake, FD&C Red n ° 4 Aluminum lake, FD&C Red n ° 40 Aluminum lake, FD&C Yellow n ° 5 Aluminum lake, FD&C Yellow n ° 6 Aluminum lake.
The chemical materials corresponding to each of the previously mentioned organic coloring matters are mentioned in the work "International Cosmetic Ingredient Dictionary and Handbook", 1997 Edition, pages 371 to 386 and 524 to 528, published by "The Cosmetic, Toiletry , and Fragrance Association ", the content of which is incorporated into the present application by reference.
[0089] The coloring agent can advantageously be a composite pigment, comprising a core at least partially enveloped by a shell.
Compound pigments
[0090] A composite pigment according to the invention can be composed in particular of particles comprising:
• an inorganic core, • at least one at least partial coating of at least one organic coloring matter.
[0091] At least one binder can advantageously contribute to the fixation of the organic coloring matter on the inorganic core.
[0092] The composite pigment particles can have various shapes.
These particles can be particularly plate-shaped or globular, in particular spherical, and be hollow or filled.
By "plate-shaped" we mean particles whose ratio of greatest dimension to thickness is greater than or equal to 5.
[0093] A composite pigment can have, for example, a specific surface area between 1 and 1000 μm<sup>2</sup>/ g, particularly between 10 and 600 m<sup>2</sup>/ g approximately, and in particular between 20 and 400 m<sup>2</sup>/ g approximately. The specific surface area is the value measured by the BET method.
The mass proportion of the core can exceed 50% with respect to the total weight of the composite pigment, for example going from 50% to 70%, for example from 60% to 70%.
[0095] The composite pigment can be different from an interference pigment as described for example in US Pat. No. 6,428,773.
An interference pigment includes, for example, several layers of constant thickness of materials selected to be able to produce the optical interferences.
The C * saturation of the composite pigment can be greater than or equal to 30, measured according to the protocol below.
Composite pigment saturation measurement protocol:
ES 2 602 181 T3
[0097] The a * and b * values in the CIE L * a * b * space of the composite pigment are measured as follows:
The pure composite pigment is compacted into a rectangular cup having the dimensions 2 x 1.5 cm and a depth of 3 mm, applying a pressure of 100 bar.
The a * and b * values of the compacted pigment are measured with a MINOLTA 3700d spectrophotometer, in specular excluded mode, D65 sub-illumination, medium aperture.
Saturation is given by C * = (a * 2 + b *<sup>2</sup>)<sup>/2</sup>.
Inorganic core
[0098] The inorganic core can be of any convenient shape for the fixation of particles of organic coloring matter, for example spherical, globular, granular, polyhedral, acicular, fusiform, flattened in the shape of a flake, rice grain, flake, Like a combination of these forms, this list is not limiting.
Preferably, the ratio of the largest dimension of the core to its smallest dimension is between 1 and 50.
[0100] The inorganic core can have a mean size between approximately 1 nm and approximately 100 nm, even between approximately 5 nm and approximately 75 nm, for example between approximately 10 nm and approximately 50 nm, particularly 20 or 25 nm.
[0101] By "mean size", the dimension given by the statistical granulometric distribution in the middle of the population is designated, called D50.
The mean size can be a number mean size determined by image analysis (electron microscopy).
[0102] The inorganic core can have a refractive index greater than or equal to 2, even greater than or equal to 2.1, for example greater than or equal to 2.2.
[0103] The inorganic core can be made of a magnetic material or not chosen from the non-limiting list that comprises metallic salts and metallic oxides, particularly oxides of titanium, zirconium, cerium, zinc, iron, blue ferric, aluminum and chromium, aluminas, crystals, ceramics, graphite, silicas, silicates, particularly aluminosilicates and borosilicates, synthetic mica, and their mixtures.
[0104] Oxides of titanium, particularly TiO2, of iron, particularly Fe2O3, of cerium, zinc and aluminum, silicates, particularly aluminosilicates and borosilicates are very particularly suitable.
[0105] The inorganic core can have a specific surface area, measured by the BET method, comprised for example between approximately 1 m<sup>2</sup>/ g and about 1000 m<sup>2</sup>/ g, better between about 10 m<sup>2</sup>/ g and about 600 m<sup>2</sup>/ g, for example between approximately 20 m<sup>2</sup>/ g and approximately 400 m<sup>2</sup>/ g.
[0106] The inorganic core can be colored, if necessary.
Organic coloring matter
[0107] The organic coloring matter can contain for example at least one organic pigment, for example at least one organic lacquer.
[0108] The organic coloring matter can be chosen, for example, from particulate compounds insoluble in the physiologically acceptable medium of the composition.
[0109] The organic coloring matter can contain, for example, pigments, for example organic lacquers or other organic coloring matters, which can be chosen from the compounds below and their mixtures:
• cochineal carmine, • organic pigments of azo, anthraquinone, indigos, xanthenic, pyrene, quinoline, triphenylmethane, fluoran dyes, • organic lakes or insoluble salts of sodium, potassium, calcium, barium, aluminum, zirconium, strontium, titanium, acid dyes such as azo, anthraquinone, indigo, xanthenic, pyrene, quinoline, triphenylmethane, fluoran dyes, these colorants can contain at least one carboxylic or sulfonic acid group.
[0110] Among the pigments or organic, mention may be made in particular of those known under the following names: D&C Blue No. 4, D&C Brown No. 1, D&C Green No. 5, D&C Green No. 6, D&C Orange No. 4, D&C Orange # 5, D&C Orange # 10, D&C Orange # 11, D&C Red # 6, D&C Red # 7, D&C Red # 17, D&C Red # 21, D&C Red #
ES 2 602 181 T3
22, D&C Red # 27, D&C Red # 28, D&C Red # 30, D&C Red # 31, D&C Red # 33, D&C Red # 34, D&C Red # 36, D&C Violet # 2, D&C Yellow # 7, D&C Yellow # 8, D&C Yellow # 10, D&C Yellow # 11, FD&C Blue # 1, FD&C Green # 3, FD&C Red # 40, FD&C Yellow # 5, FD&C Yellow n ° 6.
[0111] The organic coloring matter can contain an organic lacquer supported by an organic support such as rosin or aluminum benzoate, for example.
[0112] Among the organic lacquers, mention may be made in particular of those known under the following names: D&C Red # 2 Aluminum lake, D&C Red # 3 Aluminum lake, D&C Red # 4 Aluminum lake, D&C Red # 6 Aluminum lake, D&C Red # 6 Barium lake, D&C Red # 6 Barium / Strontium lake, D&C Red no.6 Strontium lake, D&C Red no.6 Potassium lake, D&C Red no.7 Aluminum lake, D&C Red no.7 Barium lake, D&C Red no.7 Calcium lake, D&C Red no.7 Calcium / Strontium lake, D&C Red # 7 Zirconium lake, D&C Red # 8 Sodium lake, D&C Red # 9 Aluminum lake, D&C Red # 9 Barium lake, D&C Red # 9 Barium / Strontium lake, D&C Red # 9 Zirconium lake, D&C Red # 10 Sodium lake, D&C Red # 19 Aluminum lake, D&C Red # 19 Barium lake, D&C Red # 19 Zirconium lake, D&C Red # 21 Aluminum lake, D&C Red n ° 21 Zirconium lake, D&C Red n ° 22 Aluminum lake, D&C Red n ° 27 Aluminum lake, D&C Red n ° 27 Aluminum / Titanium / Zirconium lake, D&C Red n ° 27 Barium lake, D&C Red n ° 27 Calcium lake, D&C Red n ° 27 Zirconium lake, D&C Red n ° 28 Aluminum lake, D&C Red n ° 30 lake, D&C Red n ° 31 Calcium lake, D&C Red # 33 Aluminum lake, D&C Red # 34 Calcium lake, D&C Red # 36 lake, D&C Red # 40 Aluminum lake, D&C Blue # 1 Aluminum lake, D&C Green # 3 Aluminum lake, D&C Orange n 4 Aluminum lake, D&C Orange # 5 Aluminum lake, D&C Orange # 5 Zirconium lake, D&C Orange # 10 Aluminum lake, D&C Orange # 17 Barium lake, D&C Yellow # 5 Aluminum lake, D&C Yellow # 5 Zirconium lake, D&C Yellow n ° 6 Aluminum lake, D&C Yellow n ° 7 Zirconium lake, D&C Yellow n ° 10 Aluminum lake, FD&C Blue n ° 1 Aluminum lake, FD&C Red n ° 4 Aluminum lake, FD&C Red n ° 40 Aluminum lake, FD&C Yellow n ° 5 Aluminum lake, FD&C Yellow n ° 6 Aluminum lake.
[0113] The chemical compounds corresponding to each of the previously mentioned organic coloring matters are mentioned in the work "International Cosmetic Ingredient Dictionary and Handbook", Edition 1997, pages 371 to 386 and 524 to 528, published by "The Cosmetic, Toiletry , and Fragrance Association ", the content of which is incorporated into the present application by reference.
[0114] The mass ratio of organic coloring matter can be between about 10 parts and about 500 parts by weight for 100 parts of the inorganic core, even between about 20 parts and about 250 parts by weight, for example between about 40 parts and about 125 parts by weight for 100 parts of the inorganic core.
[0115] The total content of organic coloring matter of the composition, from the composite pigment and other optional pigments, can be, for example, less than 10%, with respect to the total weight of the composition.
[0116] The proportion of the organic coloring matter can exceed 30% with respect to the total weight of the composite pigment, for example going from 30 to 50%, for example from 30 to 40%.
Binder
[0117] The binder can be of any type since it allows the organic coloring matter to adhere to the surface of the inorganic core.
[0118] The binder may in particular be chosen from a non-limiting list comprising silicone compounds, polymeric, oligomeric or similar compounds, and in particular from organosilanes, fluoroalkylated organosilanes and polysiloxanes, for example polymethylhydrogenosiloxane, as well as various binding agents, such as silane-, titanate-, aluminate-, zircona-based binding agents and mixtures thereof.
[0119] The silicone compound can be chosen from a non-limiting list, particularly comprising:
• organosilanes (1) obtained from alkoxysilanes, • polysiloxanes (2) modified or not chosen from a non-limiting list that includes:
- modified polysiloxanes (2A) comprising at least one radical chosen from, in particular, polyethers, polyesters and epoxy compounds (they will be called "modified polysiloxanes"),
- the polysiloxanes (2B) bearing on a silicon atom located at the end of the polymer, at least one group chosen from a non-limiting list comprising carboxylic acids, alcohols or hydroxy groups, and
- fluoroalkylated organosilane compounds (3) obtained from fluoroalkylsilanes.
[0120] Organosilane compounds (1) can be obtained from alkoxysilane compounds represented by formula (I):
R<sup>1</sup>a Yes X4-a (I)
ES 2 602 181 T3
In which:
• R<sup>1</sup> represents ΟβΗδ-, (CH<sub>3</sub>)<sub>2</sub> CH-CHh- or a radical of type Cb hhb + i- (where b varies from 1 to 18), • X represents CH<sub>3</sub>O- or C2H5O-, and • a ranges from 0 to 3.
[0121] Specific examples of alkoxyplanes may include alkoxyplanes selected from: the metlltrletoxlsllano, the dlmetlldletoxlsllano, the fenlltrletloxlsllano, the dlfenlldletoxlsllano, the metlltrlmetoxlsllano, the dlmetlldlmetoxlsllano, the fenlltrlmetoxlsllano, the dlfenlldlmetoxlsllano, the sobutlltrlmetoxlsllano, the declltrlmetoxlsllano and the like, particularly among the metlltrletoxlsllano, the fenlltrletoxlsllano, the metlltrlmetoxlsllano, the dlmetlldlmetoxlsllano, the sobutlltrlmethoxlsplanane, and even better the metlltrletoxlslane, the metlltrlmethoxlslane, the fenlltrletoxlsplane.
[0122] Pollslloxanes (2) can respond in particular to the formula (II):
CH
CH - si-O 'I CH
Yes — O
CH
CH
I <sup>3</sup>
Yes — CH I <sup>3 </sup>CH (Π) 'd
In which R<sup>2</sup> represents H- or CH<sub>3</sub>- yd ranges from 15 to 450.
[0123] Among these pollslloxanes, those for which R<sup>2</sup> represents H are preferred.
[0124] The modified pollslloxanes (2A) can respond in particular to the following formulas: • (a<sup>1</sup>) modified pollslloxanes bearing the polethers, represented by the formula (III)
<img file="ES2602181T3_D0001.tif" />
CH
I <sup>3</sup>
-Yes — O
I 6
R
CH
I <sup>3</sup>
-Yes — CH
CH (ΠΙ)
OR
<img file="ES2602181T3_D0002.tif" />
R<sup>4</sup> • in which R<sup>J</sup> represents - (CH2) h-; R<sup>4</sup> represents - (CH2); CH3; R5 represents -OH.COOH, CH2 or - (CH2) j-CH3; R<sup>6</sup> represents - (CH2) k- CH<sub>3</sub>; g and h varying Independently from Independently from 0 to 15; e varying from 1 to 50 and f varying from 1 to 300, • (a<sup>2</sup>) modified pollslloxanes carrying the polyesters, represented by the formula (IV):
-CH = CH<sub>2</sub>, -C (CH<sub>3</sub>) = 1 to 15; jyk varying
CH
CH I <sup>3 </sup>Yes-O I
CH
Yes — ΟΙ 7
R
CH I <sup>3 </sup>Yes - lll \<sup>R</sup> /
CH I <sup>3</sup>
-si — CH
I <sup>3</sup>
CH (IV)
O — HC — R — Co — R — 03-R \ II II / noo • in which R<sup>7</sup>, R<sup>8</sup>and R<sup>9</sup> Independently represent - (CH2) q-; R<sup>10</sup> represents -OH; COOH, -CH = CH2; -C (CH<sub>3</sub>) = CH<sub>2</sub> or - (ΟΗ<sub>2</sub>)<sub>γ</sub>- CH<sub>3</sub>; R<sup>11</sup> represents - (CH2)<sub>S</sub>- CH<sub>3</sub>; nyq varying Independently from 1 to 15, r and s varying Independently from 0 to 15; e varying from 1 to 50 and f varying from 1 to 300,
ES 2 602 181 T3 (V) • (a<sup>3</sup>) modified polysiloxanes bearing epoxy radicals represented by the formula (V):
CH
CH - yes - O <sup>3</sup> I
CH
<img file="ES2602181T3_D0003.tif" />
o — CH-CH — CH \ / 2
OR • in which R<sup>12</sup> represents - (CH<sub>2</sub>)<sub>V</sub>-; v ranging from 1 to 15; t varying from 1 to 50 and u varying from 1 to 300; or their mixtures.
Among the modified polysiloxanes (2A), the modified polysiloxanes bearing the polethers of formula (III) are preferred.
The modified polysiloxanes on the terminal part (2B) can respond to the formula (VI):
CH
CH
R-Si-0
I
CH
Yes — O
I
CH
<img file="ES2602181T3_D0004.tif" />
Yes — O
CH
-Sir
CH (VI) in which R and R can represent -OH, R -OH or R -COOH, independently of each other; R represents -CH<sub>3</sub> or -C6H5; R<sup>16</sup> and R<sup>17</sup> represent - (CH<sub>2</sub>)<sub>Y</sub>-; and ranging from 1 to 15; w varying from 1 to 200 and x varying from 0 to 100.
[0125l Among these polysiloxanes modified on at least one end, those that carry at least radical (R<sup>1 </sup>and / or R<sup>17</sup>) that carry a carboxylic acid group on at least one terminal silicon atom are still preferred.
[0126] Fluoroalkylated organoslane compounds (3) can be obtained from sllan fluoroalkyl compounds represented by the formula (Vil):
CF<sub>3</sub>(CF<sub>2</sub>) zCH2CH<sub>2</sub>(R<sup>18</sup>) aS, X4-<sub>to</sub> (Vile)
In which:
• R<sup>18</sup> represents CH<sub>3</sub>-, C<sub>2</sub>Hs-, CH<sub>3</sub>O- or C2H5O-, • X represents CH<sub>3</sub>O- or C2H5O-, • Z ranges from 0 to 15 and already ranges from 0 to 3.
[0127] The fluoroalqullsllanos may particularly be selected from a non-limiting list especially comprising trlfluoroproplltrlmetoxlsllano, the trldecafluorooctlltrlmetoxlsllano, the heptadecafluorodeclltrlmetoxlsllano, the heptadecafluorodecllmetlldlmetoxlsllano, the trlfluoroproplltrletoxlsllano, the trldecafluorooctlltrletoxlsllano, the heptadecafluorodeclltrletoxlsllano, heptadecafluorodecllmetlldletoxlsllano and the like, particularly trlfluoroproplltrlmetoxlsllano, trldecafluorooctlltrlmethoxylane and heptadecafluorodeclltrlmethoxylane, and even better trlfluoropropll trlmethoxylane and trldecafluorooctlltrlmethoxylane.
[0128] The sllane-based binding agents can be chosen from a non-limiting list that includes particularly vlnlltrlmethoxlslane, vlnlltrletoxlslane, γ-amlnopropll-trletoxlslane, γfllcldoxlproplltrlmethoxlslane, amlnoetll) γ-amlnoproplltrlmethoxlslane, γ-gllcldoxlpropllmetlldlmethoxlslane, γ-chloroproplltrlmethoxlslane and the like.
[0129] The titanate-based binding agents can be chosen from the list comprising the titanate of soproplltrı, the titanate of soproplltrıs (dioctılpyrophosphate), the titanate of sopropıltrl (N -am¡noet¡lam¡noet¡l), tetraoct¡lb¡s titanate (dltr¡decyphosphate), tetra tetra (2,2-dollar¡lox¡metll-1 -butll) b¡s (d¡trldec¡l) phosphate, bls (d¡octlp¡phosphate) oxlacetate, bls (d¡octlpyrophosphate) ethylene titanate and the like.
[0130] Aluminate-based binding agents can be chosen from acetoalkoxylaluminum dllsoproplalate,
ES 2 602 181 T3 aluminum dll-propoxy-acetoacetate, aluminum trlacetlacetoacetate, aluminum trlacetlacetonate and the like.
[0131] The zirconate-based binding agents can be chosen from a list which comprises in particular zirconium tetraquisacetylacetonate, zirconium dibutoxybisacetylacetonate, zirconium tetrakisetylacetoacetate, zirconium tributoxymethylacetoacetate, and the like zirconium zirconium tributoxymethylacetoacetate.
[0132] The compounds serving as binder can in particular have a molar mass that can vary between 300 and 100,000.
[0133] In order to obtain a layer that covers the inorganic cores uniformly, the binder is preferably in a liquid state or soluble in water or in different solvents.
[0134] The amount of binder can vary from 0.01 to 15%, particularly from 0.02 to 12.5% and in particular from 0.03 to 10% by weight (calculated with respect to C or Si) with respect to weight of the particles that comprise the core and the binder.
For further details on how to calculate the relative amount of the binder, reference may be made to application EP 1 184 426 A2.
The relative proportion of binder can be less than or equal to 5%, for example less than or equal to 3%, relative to the total weight of the composite pigment.
Compound Pigment Preparation
[0135] The composite pigment can be prepared by any appropriate procedure, for example a mechanochemical procedure or a solution precipitation procedure, with dissolution of the organic coloring matter then precipitation on the surface of the core.
[0136] A binder may or may not be used.
[0137] A process comprising a mechanical mixing of an organic pigment and the inorganic core is preferred.
[0138] A binder can be added and mixed with the inorganic core before the introduction of the organic coloring matter.
[0139] The compound pigment can be produced, for example, by one of the procedures described in European patent applications EP 1 184 426 and EP 1 217 046, the contents of which are incorporated herein by reference, advantageously by the procedure described in application EP 1 184 426.
[0140] In an exemplary embodiment, one begins by mixing the particles destined to constitute the inorganic core with the binder.
[0141] In such a way that the binder adheres uniformly to the surface of the inorganic core, it is preferable to pass these particles previously in a grinder, to de-agglomerate them.
[0142] Mixing and stirring conditions are selected such that the core is uniformly coated with binder.
These conditions can be controlled so that the linear load is comprised between 19.6 and 19160 N / cm, in particular between 98 and 14170 N / cm and better between 147 and 980 N / cm; the treatment time is particularly between 5 min and 24 hours and better from 10 min to 20 hours; the speed of rotation can be between 2 and 1000 trs / min, in particular between 5 and 1000 trs / min and better between 10 and 800 trs / min.
[0143] After the binder has coated the inorganic core, the organic coloring matter is added and mixed with stirring to adhere to the binder layer.
[0144] The methods of addition can be for example a bulk, continuous, or small addition.
[0145] Mixing and agitation, either of the inorganic cores with the binder or of the organic coloring matter with the binder-coated inorganic cores, can be accomplished using an apparatus that can apply spatular and / or compression shear force to the powder mix.
Such equipments are for example wheel mixers, sheet mixers and the like.
Wheel mixers are very particularly suitable.
A list of apparatuses which may be suitable is given in application EP 1 184 426 A2.
[0146] Another method of manufacturing a composite pigment is described in JP 3286463, which discloses a
ES 2 602 181 T3 solution precipitation procedure.
[0147] The organic coloring matter is dissolved in ethanol, the inorganic nuclei are then dispersed in this ethanolic solution.
[0148] Next, an alkaline aqueous solution of sodium or potassium carbonate is slowly added to these mixtures, then finally, slowly, an ethanolic solution of calcium chloride, all under stirring.
[0149] In addition to a coloring agent that absorbs light by an absorption phenomenon, the composition may contain at least one interference or diffraction pigment, and / or reflective particles.
[0150] In an exemplary embodiment of the invention, the first composition includes at least one goniochromatic coloring agent that makes it possible to observe a color change as a function of the angle of observation.
This goniochromatic coloring agent may or may not be magnetic.
[0151] When the first composition includes the magnetic particles of a certain color and a non-magnetic goniochromatic coloring agent, the latter can be chosen in such a way that the color path passes substantially through the color of the magnetic particles.
[0152] This can make it possible, for example, to make magnetic particles with a defect in their orientation under the effect of a magnetic field more difficult to detect.
[0153] This can also make it possible to make the motif induced by the orientation of the magnetic particles appear only under certain conditions of observation and / or lighting of the made-up support, which can make it possible to create the particularly attractive effects of appearance and arrangement of the reason.
GONIOCHROMATIC STAINING AGENTS
[0154] The composition containing the magnetic bodies can contain at least one goniochromatic coloring agent, which can have magnetic properties, where appropriate.
[0155] By "goniochromatic coloring agent", in the sense of the present invention is meant a coloring agent that makes it possible to obtain, when the composition is spread on a support, a color path in the a * b * plane of space CIE 1976 colorimetric that corresponds to a variation Dh ° of the color angle h ° of at least 20 ° when the angle of observation is varied with respect to the normal between 0 ° and 80 °, for an angle of oblique light 45 °.
[0156] The color path can be measured for example through an INStRuMENT SYSTEMS brand spectrogoniorreflectometer and GON 360 GONIOMETER reference, after the first composition has been extended to the fluid state with a thickness of 300 pm through an automatic spreader on a contrast card made by ERICHSEN and reference Typ 24/5, the measurement being carried out on the black background of the card.
[0157] The goniochromatic coloring agent can be chosen, for example, from interferential multilayer structures and liquid crystal coloring agents.
[0158] In the case of a multilayer structure, it can contain, for example, at least two layers, each layer being made, for example, from at least one material chosen from the group consisting of the following materials: MgF2, CeF3, ZnS , ZnSe, Si, SiO2, Ge, Te, Fe2O3, Pt, Va, Al2O3, MgO, Y2O3, S2O3, SiO, HfO2, ZrO2, CeO2, Nb2O5, Ta2O5, TiO2, Ag, Al, Au, Cu, Rb, Ti , Ta, W, Zn, MoS2, cryolite, alloys, polymers and their associations.
[0159] The multilayer structure may or may not have, with respect to a central layer, a symmetry at the level of the chemical nature of the stacked layers.
Depending on the thickness and nature of the different layers, different effects are obtained.
[0160] Examples of symmetric interferential multilayer structures are, for example, the following structures: Fe2O3 / SiO2 / Fe2O3 / SiO2 / Fe2O3, a pigment having this structure being marketed under the name SICOPEARL by BASF; MoS2 / SiO2 / mica-oxide / SiO2 / MoS2; Fe2O3 / SiO2 / mica-oxide / SiO2 / Fe2O3; TiO2 / SiO2 / TiO2 and TiO2 / Al2O3 / TiO2, pigments with these structures being marketed under the name XIRONA by the MERCK company (Darmstadt).
[0161] Liquid crystal coloring agents comprise for example silicones or cellulose ethers onto which mesomorphic groups are grafted.
As goniochromatic particles of liquid crystals, it is possible to use, for example, those sold by the company CHENIX as well as those sold under the name HELICONE® HC by the company WACKER.
ES 2 602 181 T3
[0162] As gonlochromatic coloring agent, certain nacres, pigments with effects on synthetic substrate, particularly substrate type alumina, silica, borosilicate, iron oxide, aluminum, or interference holographic chips obtained from a polyterephthalate film can also be used.
[0163] The material may further contain dispersed goniochromatic fibers.
Such fibers may have a length of less than 80 µm, for example.
[0164] The composition containing the magnetic bodies can also contain at least one diffraction pigment, which can have magnetic properties, where appropriate.
DIFFRACTING PIGMENTS
[0165] By "diffraction pigment" is meant in the sense of the present invention a pigment capable of producing a color variation according to the angle of observation when illuminated with white light, due to the presence of a structure that diffracts the light.
[0166] A diffraction pigment may contain a diffraction grating, capable for example of diffracting an incident monochromatic light beam in defined directions.
[0167] The diffraction grating may contain a periodic pattern, particularly a line, the distance between two adjacent patterns being of the same size order as the wavelength of the incident light.
[0168] When the incident light is polychromatic, the diffraction grating will separate the different spectral components of the light and produce a rainbow effect.
[0169] It may usefully be referred to in relation to the structure of diffraction pigments in the article "Pigments Exhibiting Diffractive Effects" by Alberto Argoitia and Matt Witzman, 2002, Society of Vacuum coaters, 45th Annual Technical Conference Proceedings 2002.
[0170] The diffraction pigment can be made with patterns having different profiles, particularly triangular, symmetrical or not, in niches, of constant width or not, sinusoidal.
[0171] The spatial frequency of the grating and the depth of the motifs will be selected depending on the degree of separation of different desired orders.
The frequency can vary for example between 500 and 3000 lines per mm.
[0172] Preferably, the diffraction pigment particles each have a flattened shape, and are particularly plate-shaped.
[0173] The same pigment particle can contain two crossed diffraction gratings, perpendicular or not.
[0174] The diffraction pigment may have a multilayer structure comprising a layer of a reflective material, coated on at least one side by a layer of a dielectric material.
The latter can confer better stiffness and durability to the diffraction pigment.
The dielectric material can then be chosen for example from the following materials: MgF2, SiO2, Al2O3, AlF3, CeF3, LaF3, NdF3, SmF2, BaF2, CaF2, LiF and their associations.
The reflective material can be chosen, for example, from metals and their alloys and also from non-metallic reflective materials.
Among the metals that can be used, mention can be made of Al, Ag, Cu, al, Pt, Sn, Ti, Pd, Ni, Co, Rd, Nb, Cr and their materials, associations or alloys.
Such a reflective material can, alone, constitute the diffraction pigment which will then be monolayer.
[0175] Alternatively, the diffraction pigment may contain a multilayer structure comprising a core of a dielectric material covered with a reflective layer on at least one side, even completely encapsulating the core.
A layer of a dielectric material can also cover the reflective layer (s).
The dielectric material used is then preferably inorganic, and can be chosen, for example, from metal fluorides, metal oxides, metal sulfides, metal nitrides, metal carbides and their associations.
The dielectric material can be in the crystalline, semi-crystalline or amorphous state.
The dielectric material, in this configuration, can for example be chosen from the following materials: MgF2, SiO, SiO2, Al2O3, TiO2, WO, AlN, BN, B4C, WC, TiC, TiN, ^ YES3, ZnS, glass particles , diamond-like carbons and their associations.
[0176] Alternatively, the diffraction pigment may be composed of a dielectric or ceramic material
ES 2 602 181 T3 preformed as a natural sheet mineral, for example peroskovlta mica or talc, or synthetic sheets formed from glass, alumina, SiO2, carbon, an iron oxide / mica, mica coated with BN, BC, graphite, bismuth oxychloride, and their associations.
[0177] In the place of a layer of a dielectric material, other materials that improve mechanical properties may be suitable.
Such materials can contain silicone, metallic silicides, semiconductor materials formed from Group III, IV, and V elements, metals having a centered cubic crystal structure, cermet compositions or materials, semiconductor glasses, and their varied associations.
[0178] The diffraction pigment used can in particular be chosen from those described in the American patent application US 2003/0031870 published on February 13, 2003.
[0179] A diffraction pigment may contain, for example, the following structure: MgF2 / Al / MgF2, a diffraction pigment having this structure being marketed under the name SPECTRAFLAIR 1400 Pigment Silver by the company FLEX PRODUCTS, or SPECTRAFLAIR 1400 Pigment Silver FG.
The proportion by weight of MgF2 can be between 80 and 95% of the total weight of the pigment.
[0180] The amount of diffraction pigment can vary, by weight with respect to the total weight of the first composition, for example from 0.1 to 5%.
[0181] The dimension of the diffraction pigment can be comprised for example between 5 and 200 pm, better between 5 and 100 pm, for example between 5 and 30 pm.
[0182] The thickness of the diffraction pigment particles may be less than or equal to 3 pm, better 2 pm, for example of the order of 1 pm.
REFLECTIVE PARTICLES
[0183] The composition containing the magnetic bodies can comprise reflective particles, particularly chips, among others, magnetic or not.
[0184] By "reflective particles", we mean particles whose size, structure, particularly the thickness of the layer or layers that constitute it and their physical and chemical nature, and the surface state, allow them to reflect the incident light.
This reflection can, where appropriate, have a sufficient intensity to create on the surface of the composition or the mixture, when applied to the support to be made up, highlighting points visible to the naked eye, that is, brighter points that contrast with its surroundings that seem to glow.
[0185] The reflective particles can be selected so as not to significantly alter the coloring effect generated by the coloring agents associated with them and particularly so as to optimize this effect in terms of color reproduction.
These can in a more particular way have a yellow, pink, red, bronze, orange, brown, gold and / or copper color or reflection.
[0186] The reflective particles can be present in the first composition at a content ranging from 0.5% to 60% with respect to the total weight of the first composition, particularly from 1% to 30% by weight, in particular from 3% to 10% by weight.
[0187] These particles can have various shapes, in particular be in the form of plates or globular, in particular spherical.
[0188] Reflective particles, whatever their shape, may or may not have a multilayer structure and, in the case of a multilayer structure, for example at least one layer of uniform thickness, particularly of a reflective material.
[0189] When the reflective particles do not have a multilayer structure, they can be composed, for example, of metal oxides, particularly titanium or iron oxides obtained by synthesis.
[0190] When the reflective particles have a multilayer structure, they can for example contain a natural or synthetic substrate, particularly a synthetic substrate at least partially surrounded by at least one layer of a reflective material, particularly of at least one metal or metallic material .
The substrate can be monomatter, multimatter, organic and / or inorganic.
[0191] In a more particular way, one can choose between glasses, ceramics, graphite, metal oxides, aluminas, silicas, silicates, particularly aluminosilicates and borosilicates, synthetic mica and their
ES 2 602 181 T3 mixtures, this list is not limiting.
[0192] The reflective material may contain a layer of metal or of a metallic material.
[0193] Reflective particles are particularly described in JP-A-09188830; JP-A-10158450; JP-A-10158541; JP-A-07258460 and JP-A-05017710.
[0194] Still by way of example of reflective particles comprising a mineral substrate wrapped in a metal layer, the particles comprising a borosilicate substrate wrapped in silver can also be mentioned.
[0195] Silver coated glass substrate particles, in the form of plates, are sold under the name MICROGLASS METASHINE REFSX 2025 PS by TOYAL.
Nickel / chromium / molybdenum alloy coated glass substrate particles are sold under the designation CRYSTAL STAR GF 550, GF 2525 by this same company.
[0196] The reflective particles, whatever their shape, can also be selected from the particles of synthetic substrate coated at least partially with at least one layer of at least one metallic material, particularly a metallic oxide, chosen for example from the Titanium oxides, particularly TiO2, iron particularly Fe2O3, tin, chromium, barium sulfate and the following materials: MgF2, CrF3, ZnS, ZnSe, SiO2, ALO<sub>3</sub>, MgO, Y2O3, SeO3, SiO, HfO2, ZrO2, CeO2, Nb2Os, Ta2Os, MoS2 and their mixtures or alloys.
[0197] As an example of such particles, mention may be made, for example, of the particles comprising a substrate of synthetic mica coated with titanium dioxide, or the particles of glass coated with either brown iron oxide, titanium oxide, or titanium oxide. tin or one of its mixtures such as those sold under the brand REFLECKS® by the company ENGELHARD.
[0198] The composition containing the magnetic bodies can comprise at least one mother-of-pearl, magnetic or not.
MOTHERS
[0199] By "mother-of-pearl", we have to understand particles colored in any way, iridescent or not, particularly produced by certain mollusks in their shells or synthesized and which present a color effect by optical interference.
[0200] Nacres can be selected from pearlescent pigments such as iron oxide coated titanium mica, bismuth oxychloride coated mica, chromium oxide coated titanium mica, The titanium mica coated with an organic colorant, particularly of the aforementioned type, as well as the pearlescent pigments based on bismuth oxychloride, can also be mica particles on the surface of which at least two successive layers of metallic oxides and / or organic colorants are superimposed. .
[0201] The nacres can more particularly have a yellow, pink, red, bronze, orange, brown, gold and / or copper color or reflection.
[0202] By way of illustration of the nacres that can be introduced in the first composition, mention may be made in particular of the gold-colored nacres, particularly marketed by ENGELHARD under the name Brillant gold 212G (Timica), Gold 222C (Cloisonne), Sparkle gold (Timica), Gold 4504 (Chromalite) and Monarch gold 233X (Cloisonne); the bronze mother-of-pearl marketed in particular by MERCK under the name Bronze fine (17384) (Colorona) and Bronze (17353) (Colorona) and by the company ENGELHARD under the name Super bronze (Cloisonne); the orange nacres particularly marketed by the ENGELHARD company under the names Orange 363C (Cloisonne) and Orange MCR 101 (Cosmica) and by the MERCK company under the names Passion orange (Colorona) and Matte orange (17449) (Microna); the brown nacres in particular marketed by ENGELHARD under the names Nu-antique copper 340XB (Cloisonne) and Brown CL4509 (Chromalite); the mother-of-pearl reflecting copper, particularly marketed by ENGELHARD under the name Copper 340A (Timica); the nacres with a red reflection, particularly marketed by the MERCK company under the name Sienna fine (17386) (Colorona); the yellow reflection nacres particularly marketed by ENGELHARD under the name Yellow (4502) (Chromalite); the red-colored nacres with a gold reflection, particularly marketed by ENGELHARD under the name Sunstone G012 (Gemtone); the pink mother-of-pearl particularly marketed by ENGELHARD under the name Tan opale G005 (Gemtone); the black mother-of-pearl with a gold reflection, particularly marketed by the company ENGELHARD under the name Nu antique bronze 240 AB (Timica), the blue mother-of-pearl particularly marketed by the company MERCK under the name Matte blue (17433) (Microna), the white mother-of-pearl with a silver reflection, particularly marketed by the MERCK company under the name Xirona Silver, and the orange-pink-gold-green mother-of-pearl particularly marketed by the MERCK company under the name Indian summer (Xirona) and their mixtures.
ES 2 602 181 T3
OTHER COMPONENTS
[0203] Typically, the composition containing the magnetic bodies includes a physiologically acceptable medium.
By "physiologically acceptable medium" is meant a medium that is non-toxic and capable of being applied to the skin, appendages or lips of human beings.
The physiologically acceptable medium is usually adapted to the nature of the support on which the composition is to be applied as well as to the form in which the composition is packaged.
[0204] The composition may contain other ingredients than those described above, particularly at least one solvent, a fatty phase, a film-forming polymer and / or a dermatological or cosmetic active, particularly depending on the galenic form.
Solvents
[0205] The composition containing the magnetic bodies can contain at least one aqueous or organic solvent.
[0206] The first composition may advantageously contain a volatile solvent, particularly a volatile organic solvent.
[0207] In the sense of the present invention, volatile solvent is understood as a solvent, liquid at room temperature, which has in particular a non-zero vapor pressure, at room temperature and atmospheric pressure, in particular having a vapor pressure that ranges from 0.13 Pa to 40,000 Pa (10<sup>-3</sup> at 300 mm Hg), and preferably ranging from 1.3 Pa to 13,000 Pa (0.01 to 100 mm Hg), and preferably ranging from 1.3 Pa to 1300 Pa (0.01 to 10 mm Hg) .
[0208] When the composition comprises one or more organic solvents, these solvents can be present in a content ranging from 0.1% to 99%, with respect to the total weight of the composition in question.
[0209] In general, the amount of solvent (s), particularly organic (s), will depend on the nature of the support on which the composition is to be applied.
[0210] The first composition can contain at least one volatile solvent consisting of a volatile oil.
[0211] The oil can be a silicone oil or a hydrocarbon oil, or contain a mixture of such oils.
[0212] In the sense of the present invention, silicone oil is understood as an oil comprising at least one silicon atom, and particularly at least one Si-O group.
[0213] The term "hydrocarbon oil" is understood to be an oil that mainly contains hydrogen and carbon atoms and optionally the oxygen, nitrogen, sulfur and / or phosphorous atoms.
[0214] Volatile hydrocarbon oils can be selected from hydrocarbon oils having 8 to 16 carbon atoms, and particularly C8-C16 branched alkanes (also called isoparaffins) such as isododecane (also called 2,2,4, 4,6-pentamethylheptane), isodecane, isohexadecane, and for example the oils sold under the trade names ISOPARS® or PERMETHYLS®.
[0215] As volatile oils, it is also possible to use volatile silicones, such as for example volatile linear or cyclic silicone oils, particularly those having a viscosity s 8 centistokes (8 x 10-6 m2 / s), and which have particularly from 2 to 10 silicon atoms, and in particular from 2 to 7 silicon atoms, these silicones optionally comprising the alkyl or alkoxy groups having from 1 to 10 carbon atoms.
As volatile silicone oil usable in the invention, mention may be made in particular of dimethicones of viscosity 5 and 6 cSt, octamethyl cyclotetrasiloxane, decamethyl cyclopentasiloxane, dodecamethyl cyclohexasiloxane, heptamethyl hexyltrisiloxane, heptamethyloctyl trisiloxane, octamethyl hexamethyl trisiloxane, octamethyl hexamethyl disloxane , decamethyl tetrasiloxane, dodecamethyl pentasiloxane, and their mixtures.
[0216] Mention may also be made of the volatile linear alkyltrisiloxane oils of the general formula (I):
ES 2 602 181 T3
CH
CH
SiO — Si-O
Yes
<img file="ES2602181T3_D0005.tif" />
where R represents an alkyl group comprising 2 to 4 carbon atoms and of which one or more hydrogen atoms can be replaced by a fluorine or chlorine atom.
[0217] Among the oils of general formula (I), the following can be mentioned:
3-butll 1,1,1,3,5,5,5-heptametll trlslloxane,
3-propll 1,1,1,3,5,5,5-heptametll trlslloxane, and
3-etll 1,1,1,3,5,5,5-heptametll trlslloxane,
Corresponding to the oils of formula (I) for which R is respectively a butyl group, a propyl group or an ethyl group.
[0218] Fluorinated volatile oils such as nonafluoromethoxybutane or perfluoromethoxyclopentane and their mixtures can also be used.
[0219] A composition according to the invention may comprise, for example, between 0.01% and 95% by weight of volatile oil, relative to the total weight of the composition, better between 1% and 75% by weight.
[0220] The composition may contain at least one organic solvent chosen from the following list:
• liquid ketones at room temperature, such as methyl ketone, methyl buutyl ketone, dllsobutyl ketone, phosphorone, chlorhexanone, acetone;
• liquid alcohols at room temperature such as ethanol, isopropanol, dlacetone alcohol, 2-butoxyethanol, cyclohexanol;
• Glycol liquid at room temperature such as glycol ethyl, glycol propylene glycol, glycol penthlene, glycerol;
• propylene glycol ethers liquid at room temperature such as propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, dlpropylene glycol mono n-butyl ether;
• short chain esters (having 3 to 8 carbon atoms in total) such as ethyl acetate, methyl acetate, propyl acetate, n-butyl acetate, and sopentyl acetate;
• liquid alloys at room temperature such as decane, heptane, dodecane, cyclohexane.
[0221] The composition can also comprise water or a mixture of water and hydrophilic organic solvents normally used in cosmetics such as alcohols and particularly linear or branched lower monoalcohols having 2 to 5 carbon atoms such as ethanol, Isopropanol or n-propanol, chickenols such as gllcerlna, dlgllcerlna, propllenogllchol, sorbltol, gllcol pent-filler, gllcill pollen.
The first composition can, in addition, contain the ethers in C<sub>2</sub> and the aldheidos in C<sub>2</sub>-C4 hydrophilic.
The water or the mixture of water and hydrophilic organic solvents can be present in the first and / or the second composition in a content ranging for example from 0% to 90%, particularly 0.1% to 90% by weight and preferably from 0% to 60% by weight, particularly 0.1% to 60% by weight, relative to the total weight of the composition.
Fat phase
[0222] The composition, for example when it is intended to be applied to the lips or eyelashes, can contain a fatty phase and in particular at least one liquid fatty body at room temperature (25 ° C) and under atmospheric pressure (760 mm d Hg) and / or a solid fatty substance at room temperature such as waxes, pasty fatty substances, gums and their mixtures.
The fatty phase can, in addition, contain the organic solvents that are pollutants.
[0223] The composition can have, for example, a continuous fatty phase, it can contain less than 5% water, particularly less than 1% water with respect to its total weight and in particular be in anhydrous form.
[0224] As liquid fatty substances at room temperature, often called oils, mention may be made of: vegetable hydrocarbon oils such as liquid triglycerides of fatty acids with 4 to 10 carbon atoms such as triglycerides of heptanol or octanol acids, or Also sunflower, corn, soybean, grapeseed, sesame, apricot, macadamla, castor,
ES 2 602 181 T3 caprylic / capric acids, jojoba oil, shea butter, lanolin, acetylated lanolin; linear or branched hydrocarbons, of mineral or synthetic origin such as paraffin oils and their derivatives, petrolatum, polydecenes, hydrogenated polyisobutene such as parleam; esters and synthetic ethers particularly of fatty acids such as Purcellin oil, isopropyl myristate, ethyl-2-hexyl palmitate, octyl-2-dodecyl stearate, octyl-2-dodecyl erucate , isostearyl isostearate; hydroxylated esters such as isostearyl lactate, octylhydroxystearate, octyldodecyl hydroxystearate, diisostearyl malate, triisocetyl citrate, fatty alcohol heptanoates, octanoates, decanoates; isononyl lsonanoate, isopropyl lanolate, tridecyl trimellilate, diisostearyl malate; polyol esters such as propylene glycol dioctanoate, neopentyl glycol diheptanoate, dictylene glycol diisononanoate; and the esters of pentaerythritol; fatty alcohols having 12 to 26 carbon atoms such as octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleic alcohol; partially hydrocarbon and / or silicone fluorinated oils; silicone oils such as polymethylsiloxanes (PDMS), volatile or not, linear or cyclic, liquid or pasty at room temperature such as cyclomethicones, dimethicones, possibly comprising a phenyl group, such as phenyl trimethicones, phenyltrimethylsiloxydiphenyl siloxanes, diphenylmethyldimethyl-trisiloxanes , diphenyl dimethicones, phenyl dimethicones, polymethylphenyl siloxanes; their mixes. The oils can be present in a content ranging from 0.01 to 90%, and better still from 0.1 to 85% by weight, relative to the total weight of the composition.
[0225] The presence of an oily phase can impart shine and have, for example, a refractive index between 1.47 and 1.51, better between 1.48 and 1.50.
The refractive index is measured at room temperature (25 ° C), with the help of a refractometer.
[0226] The composition can contain at least one structuring agent of the liquid fatty phase (formed by the oils and / or volatile or non-volatile organic solvents described above) chosen from waxes, semi-crystalline polymers, lipophilic gelling agents and their mixtures .
[0227] The pasty fatty body are usually hydrocarbon compounds with a melting point between 25 and 60 ° C, preferably between 30 and 45 ° C, and / or a hardness between 0.001 and 0.5 MPa, preferably between 0.005 and 0 , 4 MPa, such as lanolins and their derivatives.
[0228] Waxes can be solid at room temperature (25 ° C), with reversible solid / liquid state change, having a melting temperature higher than 30 ° C can go up to 200 ° C, a hardness higher than 0.5 MPa, and presenting an anisotropic crystalline organization in the solid state.
In particular, waxes can have a melting temperature higher than 25 ° C and better than 45 ° C.
The waxes can be hydrocarbon, fluorinated and / or silicone and be of vegetable, mineral, animal and / or synthetic origin.
As usable waxes, mention may be made of beeswax, Carnauba or Candellila wax, paraffin, microcrystalline waxes, ceresin or ozokerite; synthetic waxes such as polyethylene or Fischer Tropsch waxes, silicone waxes such as alkyl or alkoxy-dimethicone having from 16 to 45 carbon atoms.
The composition may contain from 0 to 50% by weight of waxes, relative to the total weight of the composition, even from 1 to 30% by weight.
[0229] The gums that can be used are usually high molecular weight polydimethylsiloxanes (PDMS) or cellulose or polysaccharide gums.
Film-forming polymers
[0230] The composition can also contain, for example, a film-forming polymer, particularly in the case of a mask, a nail polish or a make-up base. Film-forming polymer refers to a polymer capable of forming, alone or in the presence of an auxiliary film-forming agent, a continuous and adherent film on a support, particularly on keratin materials.
[0231] Among the film-forming polymers that can be used in the composition according to the invention, mention may be made, among others, of synthetic polymers, of the radical type or of the polycondensate type, polymers of natural origin, such as nitrocellulose or cellulose esters, and their mixtures.
[0232] Radicalar-type film-forming polymers can be particularly vinyl polymers or copolymers, particularly acrylic polymers.
[0233] Vinyl film-forming polymers can result from the polymerization of ethylenically unsaturated monomers that have at least one acid group and / or esters of these acid monomers and / or amides of these acid monomers such as α, β-ethylene unsaturated carboxylic acids such as acrylic, methacrylic, crotonic, maleic, itaconic.
[0234] Vinyl film-forming polymers can also result from the homopolymerization or copolymerization of monomers chosen from vinyl esters such as vinyl acetate, neodecanoate
ES 2 602 181 T3 vinyl, vinyl pivalate, vinyl benzoate and vinyl t-butyl benzoate and styrenic monomers such as styrene and alpha-methyl styrene.
[0235] Among the film-forming polycondensates, mention may be made of polyurethanes, polyesters, polyesters amides, polyamides, and polyureas, this list is not limiting.
[0236] Polymers of natural origin, possibly modified, can be chosen from shellac resin, watermelon gum, dammars, elemís, copals, cellulosic polymers, such as nitrocellulose, ethylcellulose or nitrocellulose esters chosen, for example, from cellulose acetate, cellulose acetobutyrate, cellulose acetopropionate, and mixtures thereof.
[0237] The film-forming polymer can be present in the form of solid particles in aqueous or oily dispersion, commonly known under the name of latex or pseudo-latex.
The film-forming polymer can contain one or more stable dispersions of usually spherical polymer particles of one or more polymers, in a physiologically acceptable liquid fatty phase.
These dispersions are commonly called polymer NADs (Non-Aqueous Dispersion) as opposed to latexes which are aqueous polymer dispersions.
These dispersions can in particular be in the form of nanoparticles of polymers in stable dispersion in said fatty phase.
The nanoparticles are preferably of a size between 5 and 600 nm.
The techniques for preparing these dispersions are well known to the skilled person.
[0238] As aqueous dispersion of film-forming polymer, the acrylic dispersions sold under the names NEOCRYL XK-90®, NEOCRYL A-1070®, NEOCRYL A-1090®, NEOCRYL BT-62® 'NEOCRYL A-1079®, can be used, NEOCRYL A-523® by the company AVECIA-NEORESINS, DOW latex 432® by the company DOW CHEMICAL, DAITOSOL 5000 AD® by the company DAITO KASEI KOGYO; or also the aqueous polyurethane dispersions sold under the names NEOREZ R-981®, NEOREZ R-974® by the company AVECIANEORESINS, the AVALURE UR-405®, AVALURE UR-410®, AVALURE UR-425®, AVALURE UR-450 ®, SANCURE 875®, SANCURE 861®, SANCURE 878®, SANCURE 2060® by the GOODRICH company, IMPRANIL 85® by the gawking company, AQUAMERE H-1511® by the HYDROMER company; sulfopolyesters sold under the brand name Eastman AQ by Eastman Chemical Products.
Blocked film-forming polymer
[0239] According to an embodiment of the invention, the composition comprises at least one film-forming polymer which is a film-forming linear sequenced ethylenic polymer.
This polymer preferably comprises at least one first sequence and at least one second sequence having different glass transition temperatures (Tg), said first and second sequences being connected between them by an intermediate sequence comprising at least one constitutive monomer of the first sequence. and at least one constitutive monomer of the second sequence.
[0240] Advantageously, the first and second sequences and the sequenced polymer are incompatible with each other.
[0241] Such polymers are described for example in EP 1411069 or WO04 / 028488, which are incorporated by reference.
[0242] The composition containing the magnetic bodies can also comprise an auxiliary filmifying agent that promotes the formation of a film with the film-forming polymer.
[0243] The composition containing the magnetic bodies can contain at least one charge, magnetic or not.
Loads
[0244] By filler, we mean particles of any shape, insoluble in the medium of the composition, whatever the temperature at which the composition is manufactured.
A filler can be particularly useful to modify the rheology or texture of the composition.
The nature and quantity of the particles may depend on the mechanical properties and the desired textures.
[0245] As examples of fillers, mention may be made, among others, of talc, mica, silica, kaolin, sericite, polyamide powders, polyolefin powders, for example polyethylene, polytetrafluoroethylene, polymethyl methacrylate , polyurethane, starch powders and silicone resin balls.
[0246] The fillers can be used to create, among others, an imprecision effect, particularly in the case of a make-up base, in order to hide skin imperfections.
ES 2 602 181 T3
Assets
[0247] The composition can contain at least one cosmetic or dermatological active.
As cosmetic, dermatological, hygienic or pharmaceutical active ingredients, usable in the compositions of the invention, mention may be made of moisturizers (polyol such as glycerin), vitamins (C, A, E, F, B, or PP), essential fatty acids, oils essentials, ceramides, sphingolipids, fat-soluble sunscreens or in the form of nanoparticles, specific active ingredients for skin treatment (protective agents, antibacterial agents, anti-wrinkles ...), self-tanners.
These actives can be used, for example, in concentrations from 0 to 20% and particularly from 0.001 to 15% relative to the total weight of the composition.
[0248] The composition can also contain ingredients normally used in cosmetics, such as, for example, thickeners, surfactants, trace elements, moisturizers, softeners, sequestrants, perfumes, alkalizing or acidifying agents, preservatives, antioxidants. , UV filters, colorants or their mixtures.
[0249] The composition according to the invention can comprise, depending on the type of intended application, the components usually used in the domains considered, which are present in an amount appropriate to the desired galenic form.
Galenic forms
[0250] The composition can be presented in various forms, depending on its destination.
The composition can thus be presented in any galenic form normally used for topical application and particularly in anhydrous form, in the form of an oily or aqueous solution, of an oily or aqueous gel, of an oil-in-water, water-in-oil, wax-in-water emulsion. water or water in wax, of a multiple emulsion, of an oil-in-water dispersion thanks to the vesicles located at the oil / water interface.
[0251] The composition can be in the form of a powder, or else a gel.
MAGNETIC DEVICES
[0252] The magnetic device can contain a permanent magnet or an electromagnet, powered for example by at least one battery or an accumulator.
In the latter case, the magnetic device may contain a switch that allows the electromagnet to be selectively supplied with electricity.
[0253] The magnetic device can be arranged to create a magnetic field whose orientation varies at the same time.
When the magnetic device includes a magnet, the device may for example contain a motor that allows the magnet to be rotated.
Alternatively, the magnetic device may contain a number of solenoids arranged so as to generate, when sequentially powered with electricity, a rotating magnetic field.
[0254] A rotating magnetic field can, for example, make it possible to obtain a pattern exhibiting a symmetry of revolution, for example a pattern that gives the impression of a raised sphere.
[0255] The electromagnet (s) can be powered without interruption or intermittently, at the user's choice.
In particular, the magnetic device can be arranged in such a way that the electromagnet (s) may not be powered as long as the magnetic device is not correctly positioned close to the coated support of the first composition.
[0256] The magnetic field is for example at least 50 mT, even at least 66 mT, better than at least 0.2 T, even at least 1 T (10,000 Gauss).
[0257] In order to make the application of the magnetic field easier, the magnetic device can contain a member that allows it to be positioned relative to the support on which the composition has been deposited.
This can, for example, make it possible to prevent the magnetic device from accidentally coming into contact with the composition and / or to center the pattern made on the region in question.
[0258] In an exemplary embodiment of the invention, the magnetic device is connected to an applicator that serves to apply the cosmetic composition.
This can make it possible to reduce the number of objects handled by the user and to facilitate makeup.
[0259] In another exemplary embodiment of the invention, the magnetic device includes a magnet installed at a first end of a rod, the second end of which is connected to a gripping member of an applicator that serves for the
ES 2 602 181 T3 application of the cosmetic composition.
[0260] The magnetic field can still be exerted through a particularly flexible magnetic structure comprising an alternation of N and S poles. Such a structure can, for example, make it possible to make repetitive patterns on the first composition, for example stripes.
KITS FOR THE EXECUTION OF THE PROCESS
[0261] The invention also aims, according to another of its aspects, a kit for the execution of the process as defined above, comprising:
• a magnetic device that allows the generation of a magnetic field, • a non-magnetic cosmetic applicator, • a cosmetic composition comprising:
- bodies that have a non-zero magnetic susceptibility and are mobile under the effect of a magnetic field, • at least one coloring agent that produces a chemical color by absorbing at least a part of the visible spectrum, the magnetic device being capable of creating a susceptible magnetic field, when keratin materials coated with a deposit of said composition are introduced into said magnetic field, of modifying the orientation and / or the position of the magnetic bodies within the reservoir, the magnetic field being applied to form at least one pattern on the composition.
[0262] The magnetic device can in particular be arranged to generate a magnetic field strong enough to be able to modify the orientation and / or position of the magnetic bodies within the composition after application to a support such as the skin, mucous membranes or the aprons, to change the appearance.
[0263] The magnetic field is for example exerted shortly after deposition, to change the appearance of the composition before drying it, when the first composition includes a volatile solvent.
[0264] The composition can be, for example, an enamel, a make-up base or a lipstick, and have the characteristics such as defined above.
[0265] The magnetic device can be as defined above.
[0266] The kit may contain a housing that houses the first cosmetic composition and the magnetic device.
In such a case, the housing may contain for example a plurality of magnets of different shapes to realize different motifs.
[0267] The kit may also contain a supplementary cosmetic composition to apply on the aforementioned composition or on the support before applying it.
[0268] The invention may be better understood by reading the following detailed description, non-limiting examples of its execution, as well as examining the attached drawing, on which:
• Figure 1 represents, schematically, an example of a kit according to the invention, • Figure 2 represents in axial, schematic and partial section, the magnetic device of Figure 1, • Figures 3 and 4 schematically illustrate the use of the kit, • figure 5 represents an example of a motif that can be obtained thanks to the invention, • figure 6 schematically represents a container containing a supplementary composition that can be applied on the support, • Figure 7 represents in isolation, schematically, another example of a magnetic device can be used, • Figure 8 schematically represents the magnetic device of Figure 7 provided with a member for positioning the magnet in front of the made-up support, • the Figures 9 and 10 schematically represent other examples of kits according to the invention, • Figure 11 illustrates the use of the kit of Figure 10, • Figure 12 represents in elevation and in isolation, schematically, an example of an applicator attached to a magnetic device, • figure 13 is an axial and schematic section of another example of kit according to the invention, • figure 14 schematically represents another example of kit according to the invention, • figure 15 represents another example of a device for packaging the composition, • figure 16 represents an openwork mask that can be used when executing the method according to the invention, and • Figure 17 represents a magnetic sheet that can be used when executing the method according to the invention.
[0269] On the figures, the magnetic bodies are represented in the form of points for greater clarity of the
ES 2 602 181 T3 drawing, but in reality the bodies may not be individually visible to the naked eye.
[0270] Figure 1 shows a kit 1 comprising a cosmetic composition C1 that includes the magnetic particles P whose orientation and / or position condition the appearance of the composition after depositing on a support such as the skin, mucous membranes or the appendages or also the false nails.
[0271] In the illustrated example, the composition C1 is an enamel contained in a container 2 closed by a cap 3. The latter supports a cosmetic applicator 4, non-magnetic, which comprises an application member 5 constituted by a brush that allows to apply the varnish on the nails.
[0272] Kit 1 also includes a magnetic device 10 that makes it possible to generate a magnetic field useful to modify the appearance of the composition C1, without contact with it.
[0273] In the example considered, the magnetic device 10 includes a permanent magnet 12 supported by a holding member 13 with the longitudinal axis X, the polar axis of the magnet 12 being substantially perpendicular to the axis X.
[0274] In the example considered, the magnetic device 10 is arranged to generate a rotating magnetic field and includes a non-apparent motor, housed in a housing 15, to rotate the maintenance member 13 around its X axis.
[0275] A switch 16 is present on the housing 15 to allow the user to start the motor and to rotate the maintenance member 13 with the magnet 12.
[0276] In a variant embodiment not illustrated, the rotating magnetic field is generated by a plurality of solenoids fed sequentially to generate a rotating field.
[0277] To use kit 1, the user can begin, as illustrated in figure 3, to apply composition C1 on the support to be made up S, in this case a nail, with the help of applicator 4.
[0278] In the further step illustrated in Figure 4, the user carries the magnetic device 10 above a central region R of the bracket S and operates the switch 16 to rotate the magnet 12.
[0279] The magnetic particles contained in the composition C1 tend to align with the field lines of the magnet 12 and change their orientation, which involves a modification of the appearance of the composition C1.
[0280] The user can choose the duration of application of the magnetic field depending on the desired result.
[0281] The pattern obtained can, for example, give the impression of a sphere in relief, as illustrated in figure 5.
[0282] Where appropriate, the user can apply a supplementary composition C2, for example a transparent varnish, contained in a container represented in figure 6, once the composition C1 has dried.
[0283] The application of this second composition C2 can make it possible to create an effect of additional depth, for example.
[0284] In the example of the enamel of Figures 1 to 5, the composition C1 can have the following formulation, the amounts being expressed in all the examples below in mass fractions.
Example A
[0285] __
<td>Nitrocellulose</td><td> 11</td>
<td>N-ethyl o, p-toluenesulfonamide</td><td> 5</td>
<td>Alkyd resin</td><td> 10</td>
<td>Isopropanol</td><td> 4</td>
<td>Magnetic pigment *</td><td> 0,5</td>
<td>Butyl acetate / ethyl acetate 50/50</td><td>Qsp100</td>
<td colspan="2">* Prussian blue CI 74160 - One such pigment produces a color by an absorption phenomenon.</td>
[0286] The appearance of such a glaze can be modified by applying a magnetic field, before the varnish has not had time to dry.
ES 2 602 181 T3
[0287] When a second composition C2 is applied over the first, it has for example the following formulation.
Example B
[0288]__
<td>Nitrocellulose</td><td> 11</td>
<td>N-ethyl o, p-toluenesulfonamide</td><td> 5</td>
<td>Alkyd resin</td><td> 10</td>
<td>Isopropanol</td><td> 4</td>
<td>Butyl acetate / ethyl acetate 50/50</td><td>Qsp100</td>
[0289] Such a composition can make it possible to create an effect of supplementary depth.
[0290] Alternatively, the second composition can be used to create a colored background, being applied before the first.
The second composition then for example the following formulation.
Example C
[0291]__
<td>Nitrocellulose</td><td> 11</td>
<td>N-ethyl o, p-toluenesulfonamide</td><td> 5</td>
<td>Alkyd resin</td><td> 10</td>
<td>Isopropanol</td><td> 4</td>
<td>DC RED7 CI 15850 Pigment</td><td> 2</td>
<td>Butyl acetate / ethyl acetate 50/50</td><td>Qsp100</td>
[0292] Of course, the magnetic field applied to the composition, whatever its nature, can be different from rotating.
As an example, a magnetic device is shown in Figure 7 that includes a permanent magnet 12 in the form of a bar at its end.
[0293] When the magnetic field is not rotating, the user can, for example, move the magnet in proximity to the composition C1 depending on the result he wishes to obtain.
[0294] The magnetic device, whatever it may be, can contain a member that allows it to be positioned relative to the support S.
[0295] This positioning member serves, for example, to prevent the magnetic device from touching the composition while the magnetic field is exerted.
[0296] The positioning member can still serve to center the motif that is made relative to the support S, for example the nail.
[0297] Depending on the nature of the support, the positioning member may take various forms, for example that of an extension 17 that offers a retaining stop surface for the end of the finger, as illustrated in Figure 8.
[0298] Another example of kit 1 according to the invention has been represented in figure 9, comprising a first composition C1 constituted in this example by a liquid lipstick or a lip gloss.
[0299] The applicator 4 includes in this example a flexible nozzle 20 supported by the cap 3 of the container 2.
[0300] The magnetic device 10 is presented for example in the form of a flexible structure, for example in plastic material loaded with magnetized particles, creating an alternation of N and S poles, which makes it possible to form on the coated support of the first composition repeating motifs, for example stripes.
[0301] In the case of a lipstick, composition C1 has, for example, the following formulation.
Example D
[0302]
ES 2 602 181 T3
<td>Octyl-2 Dodecanol</td><td> 10</td>
<td>Diterthiobutyl 4-hydroxytoluene</td><td> 0,07</td>
<td>Polybutene (95/5 monoolefins / isoparaffins) (PM: 2060)</td><td> 50</td>
<td>Mix of isopropyl, isobutyl, n-butyl p-hydroxybenzoates (40/30/30)</td><td> 0,4</td>
<td>Pentaerythrityl tetra-iso-stearate</td><td> 11,33</td>
<td>Tridecyl tri-melitate</td><td> 13</td>
<td>2-decyl tetradecanoic triglyceride (GUERBET C24)</td><td> 15</td>
<td>Magnetic pigment *</td><td> 0,2</td>
<td colspan="2">* Prussian blue CI 74160 - One such pigment produces a color by an absorption phenomenon.</td>
Example E
[0303]
<td>Octyl-2 Dodecanol</td><td> 10</td>
<td>Diterthiobutyl 4-hydroxytoluene</td><td> 0,07</td>
<td>Polybutene (95/5 monoolefins / isoparaffins) (PM: 2060)</td><td> 50</td>
<td>mixture of isopropyl, isobutyl, n-butyl p-hydroxybenzoates (40/30/30)</td><td> 0,4</td>
<td>Pentaerythrityl tetra-iso-stearate</td><td> 11,33</td>
<td>Tridecyl tri-melitate</td><td> 12</td>
<td>2-decyl tetradecanoic triglyceride (GUERBET C24)</td><td> 14</td>
<td>Magnetic pigment *</td><td> 0,2</td>
<td>DC RED7 CI 15850 pigment</td><td> 2</td>
<td colspan="2">* Prussian blue CI 74160</td>
[0304] Another kit 1 according to the invention has been represented in figure 10.
In this exemplary embodiment, the kit 1 includes a housing 30 made up of a basic body 31 and a cover 32 hinged on it.
[0305] The basic body 31 includes a compartment 33 that houses the composition C1 constituted, in the example illustrated, of a make-up base in pasty form.
[0306] The basic body 31 includes a housing 34 arranged to receive at least one magnet 12.
[0307] This magnet 12 can have, for example, an adhesive face 25 or any other mounting means that allows the user to fix it on the tip of his finger to bring it close to the area made up, for example a region of the face such and as illustrated in figure 11.
[0308] After having applied the composition C1 on the skin, the user can, for example, modify its clarity by exposing it to the magnetic field generated by the magnet 12.
[0309] In the case of a make-up base, it has, for example, the following formulation.
Example F
[0310]
<td>Magnesium sulphate</td><td> 1,5</td>
<td>Sodium carboximethylcelulose</td><td> 0,5</td>
<td>Modified hectorite distearyl dimethyl ammonium</td><td> 1</td>
<td>Cyclopenta dimethylsiloxane</td><td> 16</td>
<td>Glycerol</td><td> 5</td>
<td>Polymethylcetyl dimethyl methylsiloxane oxyethylene mixture, polyglycerol isostearate (4 moles) hexyl laurate</td><td> 9</td>
<td>Water</td><td> 31,6</td>
<td>Ethylene Glycol Acetyl Stearate Blend, Glyceryl Tristearate</td><td> 0,3</td>
<td>Aluminum stearoyl glutamate wrapped brown iron oxide (97/3)</td><td> 1,58</td>
<td>Stearoyl glutamate wrapped anatase titanium oxide (97/3)</td><td> 18,17</td>
<td>Aluminum stearoyl glutamate wrapped yellow iron oxide (93/3)</td><td> 4,56</td>
<td>Aluminum stearoyl glutamate wrapped black iron oxide (97/3)</td><td> 0,69</td>
<td>Poly dimethylsiloxane (viscosity: 5 cst)</td><td> 6</td>
<td>Magnetic pigment *</td><td> 0,5</td>
<td>1,2-pentanediol</td><td> 3</td>
<td colspan="2">* Prussian blue CI 74160</td>
[0311] Iron and titanium oxides are coloring agents that produce a color by an absorption phenomenon.
ES 2 602 181 T3
[0312] Whatever the type of applicator, the magnet 12 can, where appropriate, be incorporated into the applicator.
[0313] In the example of FIG. 12, the closing cap 3 is overcome by the magnet 12, on the side opposite the application member 5.
[0314] In the example of figure 13, the magnet 12 is supported by a holding member 13 surmounted by a cap 51 and can be housed in a compartment 50 of the cap 3 that allows closing the container 2 containing the first composition C1.
The cap 51 serves to grip the magnet 12 and allows the compartment 50 to be closed.
[0315] It does not depart from the scope of the present invention when the magnetic field is generated by an electromagnet instead of a permanent magnet.
[0316] In figure 14, a kit 1 comprising a container 2 constituted by a container containing the first composition C1 and a magnetic device 10 comprising an electromagnet 40 at one end of a housing 44 housing the electrical supply has been represented .
[0317] A switch 45 allows the user to selectively power the electromagnet 40.
[0318] Various devices in addition to those that have been described that allow conditioning and / or distributing or applying the composition C1 can be used.
[0319] The composition C1 can for example be deposited on the support S without applicator but in the form of an aerosol, for example using a pump 60 as illustrated in figure 15.
The aerosol can still be generated through an airbrush or a pressurized container, for example.
[0320] An openwork mask 70, represented in FIG. 16 and comprising a motif 71 as an openwork, star-shaped in the illustrated example, can be interposed between the aerosol and the support to be made up.
[0321] A sheet 75 permeable to the magnetic field, pierced or not, can be interposed between the magnet 12 or the electromagnet 40 and the support S, to modify the geometry of the field lines and create new effects.
[0322] Of course, the invention is not limited to the examples that have been described.
[0323] For example, the kit may contain a plurality of magnets that have different shapes to perform different motifs.
[0324] The expression comprising one must be understood as being synonymous with comprising at least one and included between must be understood with limits included, unless otherwise specified.
Contents48
65 members in 8 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 0410501 | France | A | |
| 0410501 | France | – | |
| 619928P | United States of America | – | |
| 61992804 | United States of America | P | |
| 2005050564 | France | W |
Members65
| Document | Office | Kind | |
|---|---|---|---|
| FR2876011A1 | France | A1 | |
| FR2876012A1 | France | A1 | |
| WO2006037900A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO2006037901A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO2006037902A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO2006037903A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO2006037904A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO2006037905A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO2006037906A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO2006037907A1 | World Intellectual Property Organization (WIPO) | A1 | |
| US2006088483A1 | United States of America | A1 | |
| US2006088484A1 | United States of America | A1 | |
| WO2006054002A1 | World Intellectual Property Organization (WIPO) | A1 | |
| FR2876011B1 | France | B1 | |
| FR2876012B1 | France | B1 | |
| EP1796503A1 | European Patent Office (EPO) | A1 | |
| EP1796505A1 | European Patent Office (EPO) | A1 | |
| EP1799064A1 | European Patent Office (EPO) | A1 | |
| EP1799065A1 | European Patent Office (EPO) | A1 | |
| EP1799066A1 | European Patent Office (EPO) | A1 | |
| EP1799067A1 | European Patent Office (EPO) | A1 | |
| EP1799068A1 | European Patent Office (EPO) | A1 | |
| EP1799069A1 | European Patent Office (EPO) | A1 | |
| US2008044443A1 | United States of America | A1 | |
| US2008050324A1 | United States of America | A1 | |
| US2008105272A1 | United States of America | A1 | |
| JP2008515474A | Japan | A | |
| JP2008515475A | Japan | A | |
| JP2008515790A | Japan | A | |
| JP2008515791A | Japan | A | |
| JP2008515862A | Japan | A | |
| JP2008515863A | Japan | A | |
| JP2008515864A | Japan | A | |
| JP2008515865A | Japan | A | |
| US2008124288A1 | United States of America | A1 | |
| US2008127990A1 | United States of America | A1 | |
| US2009130037A1 | United States of America | A1 | |
| EP1796505B1 | European Patent Office (EPO) | B1 | |
| AT442064T | Austria | T | |
| ATE442064T1 | Austria | T1 | |
| DE602005016578D1 | Germany | D1 | |
| ES2333241T3 | Spain | T3 | |
| JP4799559B2 | Japan | B2 | |
| JP4800315B2 | Japan | B2 | |
| JP4828540B2 | Japan | B2 | |
| JP4834669B2 | Japan | B2 | |
| JP4841555B2 | Japan | B2 | |
| JP4841556B2 | Japan | B2 | |
| JP4866360B2 | Japan | B2 | |
| JP4879182B2 | Japan | B2 | |
| EP1796503B1 | European Patent Office (EPO) | B1 | |
| ES2393790T3 | Spain | T3 | |
| US2013160785A1 | United States of America | A1 | |
| EP1799064B1 | European Patent Office (EPO) | B1 | |
| EP1799065B1 | European Patent Office (EPO) | B1 | |
| EP1799066B1 | European Patent Office (EPO) | B1 | |
| EP1799067B1 | European Patent Office (EPO) | B1 | |
| EP1799068B1 | European Patent Office (EPO) | B1 | |
| ES2601704T3 | Spain | T3 | |
| ES2602181T3This record | Spain | T3 | |
| ES2602182T3 | Spain | T3 | |
| ES2602734T3 | Spain | T3 | |
| ES2602735T3 | Spain | T3 | |
| US9609934B2 | United States of America | B2 | |
| US9649261B2 | United States of America | B2 |
Numbers
- Publication
- 2602181
- Application
- 5790006
Titles2
- Spanish
- Procedimiento de maquillaje por medio de una composición magnética que contiene al menos un agente de coloración que produce un color por absorción de al menos una parte del espectro visible
- English
- Makeup procedure by means of a magnetic composition containing at least one coloring agent that produces a color by absorption of at least a part of the visible spectrum
Classification
- CPC, 11
- A45D34/00
- A45D29/004
- A45D33/00
- A61K8/19
- A61K2800/42
- A61K2800/47
- A61K2800/88
- A61Q1/00
- A61Q1/02
- A61Q1/06
- A61Q3/02
- IPC, 4
- A45D33 00
- A45D29 00
- A45D34 00
- A45D34 04