Cosmetic composition comprising dispersions of waxes in volatile oils

The present invention relates to cosmetic compositions containing wax dispersions in volatile oils. It relates in particular to skincare and / or makeup compositions for the skin and the lips, as well as makeup compositions for keratinous fibers, in particular eyelashes.

In general, the non-rigid cosmetic compositions containing waxes consist of at least one wax or a mixture of waxes dispersed in a liquid phase. It is mainly through the quantity of wax and the other non-volatile ingredients, reflected by the dry matter content of the composition, that the application specificities sought for the compositions are adjusted, such as, for example, their fluidity, their hiding power. and in the case of makeup compositions of keratinous fibers, their curling power, as well as their thickening power (also called charging or makeup power).

In practice, there are essentially two types of formulation of compositions containing waxes, namely, on the one hand, aqueous compositions in the form of an emulsion of waxes in water and, on the other hand, anhydrous or low water content and / or water-soluble solvents, so-called "waterproof compositions", formulated as a dispersion of waxes in non-aqueous solvents.

The present invention relates more particularly to the field of compositions in the form of wax dispersion (s) in non-aqueous solvents, and in particular in at least one volatile oil.

Waxes are cosmetically interesting compounds. In particular, they can provide the compositions containing them with certain properties such as consistency and lubricity, but also provide a remarkable resistance of the applied film. In the case of makeup compositions of keratinous fibers, they are likely to improve the curling power and the thickening power.

Conventionally, the wax dispersion compositions in non-aqueous solvents have a wax content of not more than 20% by weight.

However, if one seeks to increase the wax content, one quickly runs into a problem of lack of fluidity. The composition becomes too thick on application and also no longer has the deformability necessary for its homogeneous application, or can no longer be taken with the usual accessories such as brushes or brushes.

The object of the present invention is to overcome these drawbacks and to propose a cosmetic composition which has a high wax content combined with optimum cosmetic qualities throughout its storage, among other things a satisfactory and almost constant viscosity over time, regardless of the temperature or temperature changes experienced.

More precisely, the subject of the present invention is therefore a cosmetic composition containing:<ul id="ul0001" list-style="none" compact="compact"><li>(i) at least 20% by weight of at least one wax having an initial melting point between 45 ° C and 100 ° C, relative to the total weight of the composition,</li><li>(ii) at least one dyestuff, and</li><li>(iii) at least one volatile oil.</li></ul>

The subject of the present invention is also a makeup composition for keratinous fibers containing:<ul id="ul0002" list-style="none" compact="compact"><li>(i) not more than 20% by weight of water and / or water-soluble solvent,</li><li>(ii) at least 20% by weight of at least one wax having an initial melting point greater than 45 ° C, relative to the total weight of the composition,</li><li>(iii) at least one dyestuff, and</li><li>(iv) at least one volatile oil.</li></ul>

The subject of the present invention is, in another of its aspects, a process for the preparation of a composition as defined above comprising at least continuous mixing of at least one wax according to the invention, passing from a temperature above the melting temperature of said wax at room temperature by continuous cooling.

The present invention also relates to a method for preparing a composition as defined above comprising at least one step of dispersing at least one wax in the form of particles having a size ranging from 0.5 μm to 30 μm. , in particular ranging from 1 to 20 microns, and according to the invention in at least one volatile oil, said volatile oil or the mixture of said oils being at a temperature lower than that of melting said wax in the form of particles.

The present invention further relates to a cosmetic process for the care and / or make-up of the skin and the lips, in which a composition as defined above or as obtained by one of the skin or lips is applied to the skin or the lips. processes as defined above.

The present invention furthermore relates to a process for making up keratinous fibers, in which a composition as defined above or as obtained by one of the processes as defined is applied to said keratinous fibers, in particular the eyelashes. previously.

The invention also relates to a cosmetic process for making up keratinous fibers in which a composition containing, on the keratinous fibers, in particular on the eyelashes, a composition containing:<ul id="ul0003" list-style="none" compact="compact"><li>(i) not more than 20% by weight of water and / or water-soluble solvent,</li><li>(ii) at least 20% by weight of at least one wax having an initial melting point greater than 45 ° C, relative to the total weight of the composition, and</li><li>(iii) at least one volatile oil.</li></ul>

Advantageously, the compositions of the invention also have a higher drying rate than conventional compositions based on the dispersion of waxes in a non-aqueous solvent. This of course makes it possible to reduce the time required for the implementation of processes using such compositions, and in particular in the case of a make-up process, and reduces the risk of makeup being transferred onto an adjacent surface. This also makes it possible, if necessary, to be able to apply several layers of said composition in a satisfactory time and thus further enhance the effect obtained with these compositions, and in particular the makeup effect thus obtained.

Is meant in the present invention, by the expression:<ul id="ul0004" list-style="dash" compact="compact"><li>&lt;&lt; between ... and ... &gt;&gt;, an interval of values ​​whose mentioned limits are excluded, and</li><li>&lt;&lt; from ... to ... &gt;&gt;, &lt;&lt; from ... to ... &gt;&gt; and &lt;&lt; from ... to ... &gt;&gt;, a range of values ​​whose limits are included .</li></ul>

<u>Wax (es)</u>

The wax considered in the context of the present invention is generally a lipophilic compound, solid at room temperature (25 ° C.), with reversible solid / liquid state change, having a melting point greater than or equal to 30 ° C. ° C up to 200 ° C including up to 120 ° C.

By bringing the wax to the liquid state (fusion), it is possible to render it miscible with oils and to form a microscopically homogeneous mixture, but by bringing the temperature of the mixture to room temperature, a recrystallization of the wax is obtained in the oils of the mixture.

The compositions according to the invention are characterized in particular by the presence of at least one wax having an initial melting point greater than 45 ° C.

According to a particular embodiment, this starting melting point may be greater than or equal to 50 ° C., in particular greater than or equal to 55 ° C., and even greater than or equal to 60 ° C.

For the purposes of the invention, the melting temperature corresponds to the temperature of the most endothermic peak observed in thermal analysis (DSC) as described in ISO 11357-3; 1999. The melting point of the wax can be measured using a differential scanning calorimeter (DSC), for example the calorimeter sold under the name &lt;&lt; MDSC 2920 &gt;&gt; by the company TA Instruments.

The measurement protocol is as follows:

A sample of 5 mg of wax placed in a crucible is subjected to a first temperature rise from -20 ° C. to 100 ° C., at the heating rate of 10 ° C./min, and is then cooled from 100 ° C. to -20 ° C at a cooling rate of 10 ° C / minute and finally subjected to a second temperature rise from -20 ° C to 100 ° C at a heating rate of 5 ° C / minute. During the second temperature rise, the variation of the power difference absorbed by the empty crucible and the crucible containing the wax sample as a function of temperature is measured. The melting point of the compound is the value of the temperature corresponding to the peak apex of the curve representing the variation of the difference in power absorbed as a function of the temperature.

The starting melting point of the wax can also be measured using a differential scanning calorimeter (DSC), for example using the calorimeter sold under the name "MDSC2920®" by the company TA Instruments according to the same protocol as that described above.

The starting melting point of the compound, hereinafter denoted by the abbreviation &lt;&lt; cf._com. &gt;&gt;, corresponds to the temperature measured when 5% of the enthalpy of fusion is consumed.

As waxes having a melting point of greater than 45 ° C. but less than 50 ° C., mention may be made in particular of montan wax (Pf_com. = 47.9 ° C), ozokerite (mp_com.= 46.3 ° C.) and the wax obtained by catalytic hydrogenation of olive oil esterified with the stearyl alcohol sold under the name "Phytowax Olive 18L57®" by the company SOPHIM (pf_com. = 47.4 ° C).

As waxes with a melting point greater than or equal to 50 ° C. and lower than 55 ° C., mention may be made especially of rice bran wax (mp_com. = 51.4 ° C), the Candellila wax (pf_com. = 50 ° C) and ouricurry wax (pf_com. = 51.4 ° C).

As waxes having a melting point of greater than or equal to 55 ° C., or even 60 ° C., mention may be made in particular of carnauba wax (mp_com. = 63.5 ° C), the waxes obtained by the Fisher Tropsch synthesis (pf_com. = 60.5 ° C), certain polyethylene waxes such as in particular those sold under the name "Performalene 655®" by NEW PHASE TECHNOLOGIES or "Polyethylene AC 540®" by the company HONEYWELL, from &lt; &lt;Polywax 2000 T-6® &gt;&gt; by the company PETROLITE (pf_com. = 125 ° C), or "PED 191®" and "Epolene N-14®" by EASTMAN KODAK (respectively pf)_com. = 120 ° C. and 106 ° C.) and certain microcrystalline waxes such as those sold under the names "Tisco Wax 88®" by the company Tisco or "Microwax HW®" by the company Paramelt. It may also be mentioned waxes obtained by catalytic hydrogenation of animal or vegetable oils having fatty chains, linear or branched, in C₈-C₃₂ such as hydrogenated jojoba oil (pf_com. = 63.2 ° C) and the di- (1,1,1-trimethylolpropane) tetra-enehenate sold under the name "Hest 2T-4B®" by the company HETERENE (pf_com. = 61.8 ° C).

In the present invention, it is also possible to use waxes provided in the form of small particles having a size of the order of 0.5 to 30 micrometers, in particular from 1 to 20 micrometers, and more particularly from 5 to 10 micrometers, designated thereafter by the expression "micro waxes". For the purposes of distinction, the waxes used according to the invention in the form of larger size fragments are hereinafter referred to as "conventional waxes".

As micro-waxes having starting melting points higher than 45 ° C which can be used in the compositions according to the invention, mention may be made in particular of carnauba micro-waxes such as the one marketed under the name "MicroCare 350®" by the company MICRO POWDERS, synthetic wax waxes such as the one marketed under the name "MicroEase 114S®" by the company MICRO POWDERS, micro waxes consisting of a mixture of carnauba wax and synthetic wax such as that marketed under the name "Micro Care 325®" by the company Micro Powders.

Among the waxes mentioned above, polyethylene waxes such as PETROLITE "Polywax 2000T-6" wax (pf_com. = 125 ° C), the wax &lt;&lt; PED 191 &gt;&gt; of HOECHST (pf_com. = 120 ° C) and the wax "Epolene N-14" by EASTMAN KODAK (pf_com. In particular, have a melting point of greater than or equal to 100 ° C.

In the compositions according to the invention, the wax content (s) having an initial melting point of greater than 45 ° C. may in particular be from 20 to 70%, in particular from 22 to 65%, and more particularly from 25 to 60%. % by weight relative to the total weight of the composition.

The compositions of the invention may further comprise at least one wax having an initial melting point of less than or equal to 45 ° C.

Such waxes may be of animal, vegetable, mineral or synthetic origin and mixtures thereof.

The waxes that can be used in the compositions according to the invention generally have a hardness ranging from 0.01 MPa to 15 MPa, especially greater than 0.05 MPa and in particular greater than 0.1 MPa.

The hardness is determined by measuring the compressive strength measured at 20 ° C. using the texturometer sold under the name "TA-TX2i®" by the company RHEO, equipped with a stainless steel mobile in the form of cylinder with a diameter of 2 mm by measuring the evolution of the force (compression force or stretching force) (F) as a function of time, during the following operation:

The mobile is moved at a speed of 0.1 mm / s and then penetrates into the wax to a penetration depth of 0.3 mm. When the mobile penetrated the wax to the depth of 0.3 mm, the mobile is held stationary for 1 second (corresponding to the relaxation time) and is removed at a speed of 0.1 mm / s. During the relaxation time, the force (compressive force) decreases sharply until it becomes zero and then when the mobile is withdrawn, the force (stretching force) becomes negative and then increases again towards the value 0. The hardness corresponds to the maximum compression force measured between the surface of the mobile and the wax at the time of their contact. The value of this force is expressed in MPa.

To measure the hardness, the wax is melted at a temperature equal to the melting point of the wax + 20 ° C. The melted wax is poured into a container 30 mm in diameter and 20 mm deep. The wax is recrystallized at room temperature (25 ° C) for 24 hours, then the wax is stored for at least 1 hour at 20 ° C before making the hardness measurement.

Illustrative waxes suitable for the invention include hydrocarbon waxes such as beeswax, lanolin wax, Chinese insect waxes, sumac wax, paraffins, certain polyethylene waxes. and waxy copolymers and their esters.

It may also be mentioned waxes obtained by catalytic hydrogenation of animal or vegetable oils having fatty chains, linear or branched, in C₈-C₃₂. Among these, there may be mentioned isomerized jojoba oil such as trans isomerized partially hydrogenated jojoba oil manufactured or marketed by DESERT WHALE under the trade reference "Iso-Jojoba-50®", l. hydrogenated sunflower oil, hydrogenated castor oil, hydrogenated coconut oil, hydrogenated lanolin oil, and di- (1,1,1-trimethylolpropane) tetrastearate sold under the name of &lt;&lt; Hest 2T-4S® &gt;&gt; by the company HETERENE.

Mention may also be made of silicone waxes and fluorinated waxes.

It is also possible to use the waxes obtained by hydrogenation of castor oil esterified with cetyl alcohol sold under the names "Phytowax ricin 16L64®" and "22L73®" by the company SOPHIM. Such waxes are described in application FR-A-2792190.

According to one particular embodiment, the compositions according to the invention may also comprise at least one wax, called sticky wax, that is to say having a tack greater than or equal to 0.7 Ns and a hardness less than or equal to 3 , 5 MPa.

The use of a tacky wax can in particular make it possible to obtain a cosmetic composition that is easily applied to keratinous fibers, having a good grip on keratinous fibers and which leads to the formation of a smooth, homogeneous makeup and thickener.

The tacky wax used may in particular have a tack ranging from 0.7 Ns to 30 Ns, in particular greater than or equal to 1 Ns, in particular ranging from 1 Ns to 20 Ns, in particular greater than or equal to 2 Ns, in particular ranging from 2 Ns at 10 Ns, and in particular ranging from 2 Ns to 5 Ns

The stickiness of the wax is determined by measuring the evolution of the force (compression force or stretching force) as a function of time, at 20 ° C. using the texturometer sold under the name &lt;&lt; TA- TX2i® &gt;&gt; by the company RHEO, equipped with a conical acrylic polymer mobile forming an angle of 45 °.

The measurement protocol is as follows:

The wax is melted at a temperature equal to the melting point of the wax + 10 ° C. The melted wax is poured into a container 25 mm in diameter and 20 mm deep. The wax is recrystallized at room temperature (25 ° C) for 24 hours so that the surface of the wax is flat and smooth, then the wax is kept for at least 1 hour at 20 ° C before measuring. tights.

The mobile of the texturometer is moved at a speed of 0.5 mm / s, then penetrates into the wax to a depth of penetration of 2 mm. When the mobile penetrated the wax to the depth of 2 mm, the mobile is held stationary for 1 second (corresponding to the relaxation time) and then removed at a speed of 0.5 mm / s.

During the relaxation time, the force (compression force) decreases sharply until it becomes zero and then, when the mobile is removed, the force (stretching force) becomes negative and then increases again to the value 0. The pantyhose corresponds to the integral of the force vs. time curve for the part of the curve corresponding to the negative values ​​of the force (stretching force). The value of the pantyhose is expressed in Ns

The tacky wax that can be used generally has a hardness of less than or equal to 3.5 MPa, in particular ranging from 0.01 MPa to 3.5 MPa, in particular ranging from 0.05 MPa to 3 MPa, or even from 0 to 1 MPa at 2.5 MPa.

The hardness is measured according to the protocol described above.

As the tacky wax, a C-alkyl (hydroxystearyloxy) stearate can be used₂₀-C₄₀ (the alkyl group comprising from 20 to 40 carbon atoms), alone or as a mixture, in particular a C 12- (12'-hydroxystearyloxy) stearate;₂₀-C₄₀of formula (I):<chemistry id="chem0001" num="0001"><img file="EP1516611A1_D0001.tif" /></chemistry> wherein m is an integer from 18 to 38, or a mixture of compounds of formula (I).

Such a wax is especially sold under the names "Kester Wax K 82 P®" and "Kester Wax K 80 P®" by the company Koster Keunen.

The compositions according to the invention may also additionally comprise at least one wax of the micro wax type having an initial melting point of less than or equal to 45 ° C.

The wax content having an initial melting point of less than or equal to 45 ° C. is generally in this particular embodiment from 0.1 to 50%, especially from 1 to 45%, and in particular from 5 to 40% by weight. relative to the total weight of the composition.

In the composition according to the invention, it is of course possible to use a mixture of waxes and in particular to use one or more waxes of the traditional type, and one or more so-called microwax waxes.

The wax or the mixture of waxes is present in the compositions according to the invention in the form of a dispersion of particles in the non-aqueous solvent medium.

The overall wax content, that is to say comprising both the waxes with a high starting point of melting and the waxes having a low melting point when they are present, is 20% to 70%, in particular from 22% to 65%, and more particularly from 25% to 60% by weight relative to the total weight of the composition.

The wax particles may have various shapes. They can in particular be substantially spherical.

<u>VOLATILE OIL</u>

The composition according to the invention comprises at least one volatile oil.

This volatile oil is likely to form a continuous phase.

For the purposes of the invention, the term "oil" means a fatty substance which is insoluble in water and which is liquid at ambient temperature and at atmospheric pressure.

For the purposes of the invention, the term "volatile" is intended to mean any compound capable of evaporating on contact with the skin or the keratin fiber in less than one hour at ambient temperature and atmospheric pressure. The volatile compound is a volatile cosmetic compound, which is liquid at ambient temperature, in particular having a non-zero vapor pressure, at ambient temperature and atmospheric pressure, in particular having a vapor pressure ranging from 0.13 Pa to 40,000 Pa.^-3 at 300 mm Hg), in particular ranging from 1.3 Pa to 13 000 Pa (0.01 to 100 mm Hg), and more particularly ranging from 1.3 Pa to 1300 Pa (0.01 to 10 mm Hg), Hg).

In contrast, "non-volatile" means a compound remaining on the skin or keratin fiber at ambient temperature and atmospheric pressure, for at least several hours and in particular having a vapor pressure of less than 10.^-3 mm Hg (0.13 Pa).

In the present invention, the volatile oil forms a non-aqueous solvent medium, in which it generally represents the major constituent. In other words, it represents more than 50% by weight of said non-aqueous solvent medium. In particular, it may represent at least 60%, more particularly at least 70% and may be up to 100% by weight relative to the total weight of said non-aqueous solvent medium.

The volatile oil content is generally between 5% and 80%, in particular ranging from 15% to 75%, in particular less than or equal to 70%, and more particularly from 20% to 60% by weight relative to the total weight of the composition. The volatile oil used in the present invention is cosmetically acceptable. By the term "cosmetically acceptable" is meant a compound whose use is compatible with an application on keratinous fibers and on the skin.

Of course, the composition according to the invention may comprise a mixture of such oils.

The volatile oils may be hydrocarbon oils, silicone oils and / or fluorinated or mixtures thereof.

The term "hydrocarbon-based oil" means an oil containing mainly hydrogen and carbon atoms and optionally oxygen, nitrogen, sulfur and phosphorus atoms. The volatile hydrocarbon oils may be chosen from hydrocarbon-based oils having from 8 to 16 carbon atoms, and especially C-branched alkanes.₈-C₁₆ like isoalkanes in C₈-C₁₆ of petroleum origin (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 "d 'Isopars®' or 'permetyls®', branched C-esters₈-C₁₆, isohexyl neopentanoate, and mixtures thereof. Other volatile hydrocarbon oils such as petroleum distillates, especially those sold under the name "Shell Solt®" by Shell, can also be used.

As volatile oils, it is also possible to use volatile silicones, for example volatile linear or cyclic silicone oils, especially those having a viscosity ≤ 6 centistokes (6.10^-6 m²/ s), and having in particular 2 to 10 silicon atoms, these silicones optionally having alkyl or alkoxy groups having 1 to 22 carbon atoms. As volatile silicone oil that can be used in the invention, there may be mentioned in particular octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethylisiloxane, octamethyltrisiloxane and decamethyl tetrasiloxane, dodecamethylpentasiloxane and mixtures thereof.

According to a particular embodiment of the compositions according to the invention, the volatile oil is chosen from volatile hydrocarbon oils having from 8 to 16 carbon atoms and mixtures thereof.

In the compositions according to the invention, the volatile oil may be mixed with another compound that is not soluble in water and that is liquid at room temperature and atmospheric pressure.

According to a particular embodiment, the composition of the invention further comprises at least one volatile organic solvent, especially fluorinated solvent such as nonafluoromethoxy butane or perfluoromethylcyclopentane.

The non-aqueous solvent medium of the composition according to the invention may also comprise at least one non-volatile compound, which is not soluble in water and which is liquid at ambient temperature, in particular at least one non-volatile oil, which may be chosen in particular from non-volatile hydrocarbon and / or silicone and / or fluorinated oils.

As non-volatile hydrocarbon oil, mention may notably be made of:<ul id="ul0005" list-style="dash" compact="compact"><li>hydrocarbon-based oils of vegetable origin, such as triglycerides consisting of esters of fatty acids and of glycerol, the fatty acids of which may have various chain lengths of C₄ at C₂₄, the latter can be linear or branched, saturated or unsaturated; these oils are in particular wheat germ oils, sunflower, grape seed, sesame, corn, apricot, castor, Shea avocado, Olive, soy, sweet almond oil, palm, rapeseed, of cotton, hazelnut, macadamia, jojoba, alfalfa, poppy, of pumpkin, sesame, squash, rapeseed, blackcurrant, evening primrose, millet, barley, quinoa, rye, safflower, of bancoulier, passionflower, rose muscat; or the triglycerides of caprylic / capric acids, such as those sold by the company STEARINERIES DUBOIS or those sold under the names "Miglyol 810®", &lt;&lt; 812® &gt;&gt; and &lt;&lt; 818® &gt;&gt; by the company DYNAMIT NOBEL,</li><li>synthetic ethers having from 10 to 40 carbon atoms;</li><li>linear or branched hydrocarbons of mineral or synthetic origin such as petroleum jelly, polydecenes, hydrogenated polyisobutene such as parleam, squalane, and mixtures thereof;</li><li>synthetic esters such as oils of formula R₁COOR₂ in which R₁ represents the remainder of a linear or branched fatty acid having from 1 to 40 carbon atoms and R₂ represents a particularly branched hydrocarbon chain containing from 1 to 40 carbon atoms, provided that R₁ + R₂ ≥ 10, such as for example purcellin oil (cetostearyl octanoate), isopropyl myristate, isopropyl palmitate, C alcohol benzoate₁₂ at C₁₅, hexyl laurate, diisopropyl adipate, isononyl isononanoate, 2-ethylhexyl palmitate, isostearate isostearate, octanoates, decanoates or ricinoleates of alcohols or polyalcohols such as propylene glycol dioctanoate; hydroxylated esters such as isostearyl lactate, diisostearyl malate; and pentaerythritol esters;</li><li>branched-chain and / or unsaturated carbon-chain liquid fatty alcohols having from 12 to 26 carbon atoms, such as octyl dodecanol, isostearyl alcohol, oleic alcohol, 2-hexyldecanol, 2-butyloctanol, 2-undecylpentadecanol;</li><li>higher fatty acids such as oleic acid, linoleic acid, linolenic acid;</li></ul> and their mixtures.

The non-volatile silicone oils that may be used in the composition according to the invention may be non-volatile polydimethylsiloxanes (PDMS), polydimethylsiloxanes having alkyl or alkoxy groups, during and / or at the end of the silicone chain, groups each having 2 to 24 carbon atoms, phenyl silicones such as phenyl trimethicones, phenyl dimethicones, phenyl trimethylsiloxy diphenylsiloxanes, diphenyl dimethicones, diphenyl methyldiphenyl trisiloxanes, 2-phenylethyl trimethylsiloxysilicates;

The fluorinated oils that can be used in the composition of the invention are in particular fluorosilicone oils, fluorinated polyethers and fluorinated silicones as described in document EP-A-847752.

The content of nonvolatile compound, insoluble in water and liquid at room temperature is generally in this particular embodiment of 0.01 to 30% by weight, especially 0.1 to 25% by weight, relative to total weight of the composition.

<u>Water and / or water-soluble solvent</u>

According to a first variant of the invention, the proposed compositions are free of water and water-soluble solvents.

According to a second variant of the invention, the compositions proposed, and more particularly the makeup compositions for keratinous fibers, comprise water and / or at least one water-soluble solvent in a total content of less than or equal to 20% by weight relative to weight of the composition.

By "water-soluble solvent" is meant a liquid compound at room temperature and miscible with water (miscibility in water greater than 50% by weight at 25 ° C and atmospheric pressure).

The water-soluble solvents which may be used in the compositions according to the invention are generally, moreover, volatile.

Among the water-soluble solvents that can be used in the compositions according to the invention, there may be mentioned lower monoalcohols having 1 to 5 carbon atoms, such as ethanol and isopropanol, glycols having 2 to 8 carbon atoms. such as ethylene glycol, propylene glycol, 1,3-butylene glycol and dipropylene glycol, C-ketones₃ and C₄ and aldehydes in C₂ at C₄.

The water and / or the water-soluble solvent (s) may be introduced as such into the formulation according to the invention or incorporated therein through one or more ingredients constituting said composition. Thus water may be introduced into the composition in particular by introducing latex or pseudolatex, that is to say aqueous dispersion of polymer particles.

The presence of water and / or water-soluble solvent (s) in said compositions may be advantageous for increasing the adhesion of the composition to its support. Indeed, the higher the non-aqueous solvent and in particular the volatile oil, the more the application on the support is slippery due to the mainly "oily" nature of the composition. The partial substitution of the non-aqueous solvent with a water-soluble solvent may make it possible to reduce this effect and thus increase the adhesion to the support. The film obtained after drying can then be thicker.

In this variant of the compositions of the invention, the content of water and / or of water-soluble solvent (s) can in particular be greater than or equal to 0.5%, in particular from 1 to 18% and more particularly from 2 to 15% by weight relative to the total weight of the composition.

<u>Polymer (s) soluble in the volatile oil and before at least one crystallizable part</u>

According to a particular embodiment, the compositions according to the invention comprise at least one polymer soluble in said volatile oil and having at least one crystallizable part.

"Polymer soluble in said volatile oil" means a polymer which, when it is introduced alone in a dry matter content of at least greater than 0.01% by weight and for a quantity corresponding to that envisaged for the final desired composition, is soluble in said volatile oil at room temperature, generally of the order of 25 ° C, and at atmospheric pressure (750 mm Hg, 10⁵ Pa).

Within the meaning of the present invention, the term "polymer" denotes a compound having at least two repeating units, in particular at least three repeating units, in particular at least ten repeating units, or even at least fifteen patterns of repetition. The polymer according to the invention is generally composed of at least two repetitive units of different nature (copolymer). The polymers used in the invention are generally of synthetic origin and are characterized by molar masses ranging from 200 to 1,000,000 g / mol, in particular from 500 to 500,000 g / mol and more particularly from 1,000 to 300,000 g / mol. mol.

More specifically, the polymers that can be used in the present invention are solubilized and non-crystallized copolymers in the volatile oil at room temperature and necessarily include at least one crystallizable portion designated A and at least one non-crystallizable so-called amorphous portion, designated B.

Due to this specific structure, they advantageously possess both an affinity for waxes thanks to part A and an affinity for volatile oil thanks to part B and therefore participate in this way effectively in the dispersion of waxes in the volatile oil.

The crystallizable portion of the polymers which can be used in the present invention is at least 5%, in particular at least 10% and at most 50%, and more particularly 30 to 50% by weight of the total weight of each polymer.

The crystallizable portion A of a copolymer that may be used according to the invention may be represented by a pendant chain linked to the backbone of said polymer and / or a sequence integrated directly into this backbone and / or at least one end chain. These copolymers can be of any chemical structure: random copolymers, sequenced, grafted and / or dendrimers.

In the same way, the amorphous part of a copolymer that can be used according to the invention can be represented by a pendant chain linked to the backbone of said copolymer and / or a sequence integrated directly into this backbone and / or at least one end chain.

For the purposes of the invention, the term "or the expression" means:<ul id="ul0006" list-style="dash" compact="compact"><li>"crystallizable part A", a sequence of at least 5 repeating units and such that if one took the homopolymer corresponding to this repetition pattern, it would be characterized by a degree of crystallinity greater than 30%,</li><li>"amorphous part B", a sequence of at least 5 repeat units and such that if one took the homopolymer corresponding to this repetition pattern, it would be characterized by a crystallinity rate of less than 5%, or even no,</li><li>"skeleton integrated sequence" means a group of atoms consisting of the repetition of a monomer unit, forming part of the main chain of the polymer,</li><li>"pendant chain or side group" means a group of atoms in a branch at the level of the polymer backbone, and</li><li>&lt;&lt; terminal chain &gt;&gt;, an atom group located at at least one of the ends of the skeleton.</li></ul>

a) Statistical copolymers

The random copolymers are preferably crystallizable pendant chain polymers which comprise units resulting from the polymerization of at least two monomers, at least one of which has a crystallizable hydrophobic side chain designated X which can be represented by formula II:<chemistry id="chem0002" num="0002"><img file="EP1516611A1_D0002.tif" /></chemistry> with M representing an atom of the polymer backbone, S representing a spacer, C representing a crystallizable group.

Crystallizable &lt;&lt; -SC &gt;&gt; chains may be aliphatic or aromatic, linear, branched or cyclic, optionally fluorinated or perfluorinated. &lt;&lt; S &gt;&gt; represents in particular a group (CH₂)_not or (CH₂CH₂O)_not or (CH₂O), linear branched or cyclic, with n being an integer ranging from 0 to 22. In particular, &lt;&lt; S &gt;&gt; is a linear group. In particular, &lt;&lt; S &gt;&gt; and &lt;&lt; C &gt;&gt; are different.

When the crystallizable &lt;&lt; -SC &gt;&gt; chains are aliphatic hydrocarbon chains, they comprise hydrocarbon alkyl chains having at least 11 carbon atoms and at most 40 carbon atoms and in particular at most 24 carbon atoms. These include aliphatic chains or alkyl chains having at least 12 carbon atoms and in particular these are C-alkyl chains.₁₂-C₂₄. When it is fluorinated or perfluorinated alkyl chains, they comprise at least 6 fluorinated carbon atoms and in particular at least 11 carbon atoms of which at least 6 carbon atoms are fluorinated.

Examples of polymers having pendent chain (s) crystallizable (s) include those containing units resulting from the polymerization of one or more of the following monomers: alkyl (meth) acrylates saturated with the alkyl group in C₁₂-C₂₄perfluoroalkyl (meth) acrylates with a perfluoro (C) alkyl group₁₂-C₁₅N-alkyl (meth) acrylamides with C-alkyl group₁₂ at C₂₄ with or without fluorine atom, vinyl or allyl esters with alkyl chains or perfluoro (alkyl) with the alkyl group in C₁₂ at C₂₄ (with at least 6 fluorine atoms for a perfluoroalkyl chain), vinyl ethers with alkyl chains or perfluoro (alkyl) with the alkyl group in C₁₂ at C₂₄ and at least 6 fluorine atoms for a perfluoroalkyl chain, alpha-olefins in C₁₂ at C₂₄ as for example octadecene, para-alkyl styrenes with an alkyl group having from 12 to 24 carbon atoms, their mixtures.

As an illustration of these polymers that can be used in the present invention, mention will be made of linear (C) saturated alkyl (meth) acrylate copolymers.₁₂ at C₃₀, constituting the crystallizable portion A and C-alkyl (meth) acrylates₄ at C₁₀ linear, or in C₄ at C₃₀ branched or cyclic and / or unsaturated, constituting the amorphous part B.

Among the copolymers of vinyl esters with linear and saturated C alkyl groups₁₂ at C₃₀ constituting the crystallizable part A and of vinyl esters with C-alkyl groups₄ at C₁₀ linear or C₄ at C₃₀ branched or cyclic and / or unsaturated constituting the amorphous part B, there may be mentioned in particular copolymers of vinyl acetate and of vinyl stearate or of allyl stearate such as the allyl stearate copolymer and of acetate of vinyl sold under the name "Mexomère PQ®" by the company Chimex.

When the polymers result from a polycondensation, the crystallizable hydrocarbon and / or fluorinated chains as defined above are carried by a monomer which may be a diacid, a diol, a diamine or a diisocyanate.

b) Block copolymers

These copolymers consist of at least two types of sequences of different chemical nature, one of which is crystallizable and constitutes part A. In the case of block copolymers, at least one of the amorphous B blocks must be soluble in the volatile oil.

For example:<ul id="ul0007" list-style="dash" compact="compact"><li>block copolymers of olefin or cycloolefin with a crystallizable chain, such as those resulting from the sequential polymerization:</li><li>cyclobutene, cyclohexene, cyclooctene, norbornene (i.e., bicyclo (2,2,1) heptene-2), 5-methylnorbornene, 5-ethylnorbornene, 5,6-dimethylnorbornene, 5,5,6-trimethyl norbornene, 5-ethylidene-norbornene, 5-phenylnorbonene, 5-benzylnorbornene, 5-vinyl norbornene, 1,4,5,8-dimethano-1,2,3,4,4a, 5,8a-octahydronaphthalene, dicyclopentadiene or their mixtures,</li><li>with ethylene, propylene, 1-butene, 3-methyl-1-butene, 1-hexene, 4-methyl-1-pentene, 1-octene, 1-decene, 1-eicosene or mixtures thereof,</li><li>hydrogenated sequenced or multiblocked poly (butylene terephthalate) -b-poly (isoprene) block copolymers, cited in the article "Study of morphological and mechanical properties of PP / PBT" by B. Boutevin et al., Polymer Bulletin, 34, 117-123 (1995)</li><li>the poly (ethylene) -b-copoly (ethylene / propylene) block copolymers cited in the papers "Morphology of semi-crystalline block copolymers of ethylene- (ethylene-alt-propylene)" by P. Rangarajan et al., Macromolecules, 26 4640-4645 (1993) and "Polymer agregates with crystalline cores: the poly (ethylene) -poly (ethylenepropylene) system" of P. Richter et al., Macromolecules, 30, 1053-1068 (1997), and</li><li>the poly (ethylene) -b-poly (ethylethylene) block copolymers cited in the general article "Crystallization in block copolymers" by IW Hamley, Advances in Polymer Science, Vol 148, 113-137 (1999).</li></ul>

These polymers may have a single crystallizable block or a repeat of crystallizable blocks. In the latter case, these crystallizable blocks can be of identical or different chemical nature.

c) Copolymers with terminal crystallizable blocks

For example, in this category:<ul id="ul0008" list-style="dash" compact="compact"><li>polycondensates of polyamide type resulting from the condensation between (α) at ​​least one acid selected from dicarboxylic acids comprising at least 32 carbon atoms such as dimeric fatty acids and (β) an alkylene diamine and in particular ethylene diamine, wherein the polyamide polymer comprises at least one terminal carboxylic acid group esterified or amidated with at least one monohydric alcohol or a monoamine comprising from 12 to 30 linear and saturated carbon atoms, and especially, copolymers of ethylene diamine / stearyl dilinoleate such as that sold under the name "Uniclear 100 VG®" by ARIZONA CHEMICAL; and</li><li>the lipophilic polyester polycondensates whose ends are esterified with an acid or a crystallizable alcohol consisting of a linear saturated carbon chain in C₁₂ at C₃₀and in particular 12-polyhydroxystearic acid, at least one of whose ends is esterified with stearic acid, such as "Solsperse 21000®" sold by the company Avecia.</li></ul>

As a complementary and illustrative example of the copolymers that can be used according to the invention, mention may be made in particular of ethylene / vinyl acetate copolymers, ethylene / maleic anhydride copolymers, hydrogenated butadiene / isoprene block copolymers and ethylene / maleic anhydride / terpolymers. vinyl acetate.

The polymer soluble in the volatile oil and having at least one crystallizable part or a mixture of such polymers may be present in the composition according to the invention in a proportion ranging from 0.01% to 30%, especially from 0.1 to 20% and in particular from 1 to 10% by weight relative to the total weight of the composition.

<u>FILMOGENE POLYMER</u>

The composition according to the invention may comprise, according to a particular embodiment, at least one film-forming polymer.

In the present invention, the term "film-forming polymer" means a polymer capable of forming on its own or in the presence of an auxiliary film-forming agent, a continuous and adherent film on a support, in particular on keratin materials.

In the present invention, are classified in this category, generally liposoluble polymers having less than 30% by weight of crystallizable portion under the conditions of the invention and in particular not containing it.

Among the film-forming polymers that can be used in the composition of the present invention, mention may be made of synthetic polymers, of free-radical type or of polycondensate type, polymers of natural origin, and mixtures thereof.

As an example of a fat-soluble polymer, mention may be made of vinyl ester copolymers (the vinyl group being directly connected to the oxygen atom of the ester group and the vinyl ester having a saturated hydrocarbon radical, linear or branched, from 1 to 24 carbon atoms, linked to the carbonyl ester group) and at least one other monomer which may be a vinyl ester (different from the vinyl ester already present), an alkylviny (whose alkyl group contains from 2 to 24 carbon atoms), or an allylic or methallyl ester (having a saturated hydrocarbon radical, linear or branched, from 1 to 24 carbon atoms, linked to the carbonyl ester group). These copolymers may be crosslinked using crosslinking agents which may be of the vinyl type, or of the allyl or methallyl type, such as tetraallyloxyethane, divinylbenzene, divinyl octanedioate, divinyl dodecanedioate, and octadecanedioate. divinyl.

Examples of such copolymers are copolymers: vinyl acetate / vinyl laurate, vinyl propionate / allyl laurate, vinyl propionate / vinyl laurate, and 2,2-dimethyl-2,2-allyl pentanoate / laurate. vinyl.

Liposoluble homopolymers, and in particular those resulting from the homopolymerization of vinyl esters having from 9 to 22 carbon atoms or of alkyl acrylates or methacrylates, may also be mentioned as liposoluble film-forming polymers, the alkyl radicals having more or less 2 to 24 carbon atoms.

As examples of liposoluble homopolymers, there may be mentioned in particular: vinyl polylaurate and lauryl poly (meth) acrylates, these poly (meth) acrylates being capable of being crosslinked by means of ethylene glycol dimethacrylate or tetraethylene glycol .

The liposoluble copolymers and homopolymers defined above are known and in particular described in application FR-A-2232303; they can have a weight average molecular weight ranging from 2,000 to 500,000 and in particular from 4,000 to 200,000.

Fat-soluble film-forming polymers that can be used in the invention also include polyalkylenes, and especially copolymers of C-alkenes.₂ at C₂₀, such as polybutene, alkylcelluloses with a linear or branched alkyl radical, saturated or not saturated with C₁ at C₈ such as ethylcellulose and propylcellulose, copolymers of vinylpyrrolidone (PV) and in particular copolymers of vinylpyrrolidone and C-alkene₂ at C₄₀ and in particular in C₃ at C₂₀. By way of example of copolymers of VP which may be used in the invention, mention may be made of the copolymers of VP / vinyl acetate, VP / ethyl methacrylate, polyvinylpyrrolidone (PVP) butylated, VP / ethyl methacrylate / methacrylic acid, VP / eicosene, VP / hexadecene, VP / triacontene, VP / styrene and VP / acrylic acid / lauryl methacrylate.

The film-forming polymer may also be present in the composition in the form of particles in dispersion in an aqueous phase or in a non-aqueous solvent phase, generally known under the name of latex or pseudolatex. The techniques for preparing these dispersions are well known to those skilled in the art.

As an aqueous dispersion of film-forming polymer, the acrylic dispersions sold under the names "Neocryl XK-90®" can be used, "Neocryl A-1070®", "Neocryl A-1090®", &lt;&lt; Neocryl BT-62® &gt;&gt;, &lt;&lt; Neocryl A-1079® &gt;&gt; and &lt;&lt; Neocryl A-523® &gt;&gt; by the company AVECIA-NEORESINS, "Dow Latex 432®" by DOW CHEMICAL, &lt;&lt; Daitosol 5000 AD® &gt;&gt; by the company DAITO KASEY KOGYO; or the aqueous polyurethane dispersions sold under the names "Neorez R-981®" and "Neorez R-974®" by the company Avecia-Neoresins, the "Avalure UR-405®", "Avalure UR-410®", "Avalure UR-425®", "Avalure UR-450®", &lt;&lt; 875® Sancure &gt;&gt;, &lt;&lt; Sancure 861® &gt;&gt;, &lt;&lt; Sancure 878® &gt;&gt; and &lt;&lt; Sancure 2060® &gt;&gt; by the company GOODRICH, &lt;&lt; Impranil 85® &gt;&gt; by the company BAYER, "Aquamere H-1511®" by the company HYDROMER; the sulfopolyesters sold under the brand name "Eastman AQ®" by the company Eastman Chemical Products, vinyl dispersions such as "Mexomer PAM" and also acrylic dispersions in isododecane such as "Mexomer PAP" by the company CHIMEX.

The film-forming polymer may be present in the composition according to the invention in a solids content ranging from 0.1% to 30% by weight relative to the total weight of the composition, in particular from 0.5% to 25% by weight. weight, and more particularly from 1% to 20% by weight.

The composition according to the invention may comprise a plasticizer promoting the formation of a film with the film-forming polymer. Such a plasticizer may be chosen from all compounds known to those skilled in the art as being capable of performing the desired function.

<u>Coloring matter</u>

The composition according to the invention also comprises at least one dyestuff, such as pulverulent materials, fat-soluble dyes and water-soluble dyes.

The pulverulent dyestuffs may be chosen from pigments and nacres.

The pigments may be white or colored, mineral and / or organic, coated or uncoated. Among the inorganic pigments, titanium dioxide, optionally surface-treated, oxides of zirconium, zinc or cerium, as well as oxides of iron or chromium, manganese violet, ultramarine blue, chromium hydrate and ferric blue. Among the organic pigments, mention may be made of carbon black, D &amp; C type pigments, and lacquers based on cochineal carmine, barium, strontium, calcium, aluminum.

The nacres may be chosen from white pearlescent pigments such as mica coated with titanium or bismuth oxychloride, colored pearlescent pigments such as titanium mica with iron oxides, titanium mica with ferric blue or chromium oxide, titanium mica with an organic pigment of the aforementioned type as well as pearlescent pigments based on bismuth oxychloride.

Liposoluble dyes are, for example, Sudan Red, D &amp; C Red 17, D &amp; C Green 6, β-carotene, soybean oil, Sudan Brown, D &amp; C Yellow 11, D &amp; C Violet 2, D &amp; C Orange 5, the yellow quinoline, the annatto.

Its dyestuffs may be present in a content ranging from 0.01 to 30% by weight relative to the total weight of the composition.

<u>loads</u>

The composition according to the invention may further comprise at least one filler.

The fillers may be selected from those well known to those skilled in the art and commonly used in cosmetic compositions. The fillers can be mineral or organic, lamellar or spherical. Talc can be mentioned, mica, silica, kaolin, polyamide powders such as Nylon® sold under the name "Orgasol®" by the company Atochem, poly-β-alanine and polyethylene, tetrafluoroethylene polymer powders such as Teflon®, lauroyl-lysine, starch, boron nitride, expanded polymeric hollow microspheres such as those of polyvinylidene chloride / acrylonitrile such as those sold under the name "Expancel®" by the company NOBEL INDUSTRIE, acrylic powders such as those sold under the name "Polytrap®" by the company Dow Corning, polymethyl methacrylate particles and silicone resin microspheres ("Tospearls®" from TOSHIBA, for example), precipitated calcium carbonate, carbonate and magnesium hydrocarbonate, hydroxyapatite, hollow silica microspheres ("Silica Beads®" from MAPRECOS), microcapsules of glass or ceramics, metal soaps derived from organic carboxylic acids having from 8 to 22 carbon atoms, and in particular from 12 to 18 carbon atoms, for example zinc stearate, magnesium or lithium, zinc laurate, magnesium myristate.

The fillers may represent from 0.1 to 25%, in particular from 1 to 20% by weight relative to the total weight of the composition.

The composition of the invention may furthermore comprise any cosmetically acceptable additive, in particular chosen from those commonly used in cosmetics, such as antioxidants, preservatives, perfumes, neutralizers, plasticizers, thickeners or gelling agents, fibers, cosmetic active ingredients and their mixtures.

The gelling agents that can be used in the compositions according to the invention are generally lipophilic and can be organic or inorganic, polymeric or molecular.

As inorganic lipophilic gelling agents, the optionally modified clays, such as hectorites modified with a C-fatty acid ammonium chloride, may be mentioned.₁₀ at C₂₂such as hectorite modified with di-stearyl dimethyl ammonium chloride such as, for example, that marketed under the name "Bentone 38V®" by the company ELEMENTIS.

It is also possible to mention fumed silica optionally treated hydrophobic surface whose particle size is less than 1 micron. It is indeed possible to chemically modify the surface of the silica, by chemical reaction generating a decrease in the number of silanol groups present on the surface of the silica. In particular, it is possible to substitute silanol groups with hydrophobic groups: a hydrophobic silica is then obtained. The hydrophobic groups can be:<ul id="ul0009" list-style="dash" compact="compact"><li>trimethylsiloxyl groups, which are especially obtained by treatment of fumed silica in the presence of hexamethyldisilazane. Silicas thus treated are called "silica silylate" according to the CTFA (6^th edition, 1995). They are for example marketed under the references "Aerosil R812®" by the company DEGUSSA, &lt;&lt; CAB-O-SIL TS-530® &gt;&gt; by CABOT,</li><li>dimethylsilyloxyl or polydimethylsiloxane groups, which are especially obtained by treating fumed silica in the presence of polydimethylsiloxane or dimethyldichlorosilane. Silicas thus treated are referred to as "Silica dimethyl silylate" according to the CTFA (6^th edition, 1995). They are for example marketed under the references "Aerosil R972®", and "Aerosil R974®" by the company DEGUSSA, &lt;&lt; CAB-O-SIL TS-610® &gt;&gt; and &lt;&lt; CAB-O-SIL TS-720® &gt;&gt; by CABOT.</li></ul>

The hydrophobic fumed silica has in particular a particle size that can be nanometric to micrometric, for example ranging from about 5 to 200 nm.

Polymeric organic lipophilic gelling agents are, for example, partially or totally crosslinked elastomeric organopolysiloxanes, three-dimensional structure, as those marketed under the names "KSG6®", "KSG16®" and "KSG18®" by the company SHIN-ETSU, "Trefil E-505C®" and "Trefil E-506C®" by the company DOW-CORNING, of "Gransil SR-CYC®", "SR DMF10®", "SR-DC556®", "SR 5CYC gel®", "SR DMF 10 gel®" and "SR DC 556 gel®" by the company GRANT INDUSTRIES, "SF 1204®" and "JK 113®" by the company GENERAL ELECTRIC; ethylcellulose such as that sold under the name "Ethocel®" by Dow Chemical; galactomannans having from one to six, and in particular from two to four, hydroxyl groups per os, substituted by a saturated or unsaturated alkyl chain, as guar gum alkylated with C-alkyl chains₁ at C₆, and in particular in C₁ at C₃ and their mixtures. Block copolymers of "diblock" or "triblock" type of the polystyrene / polyisoprene, polystyrene / polybutadiene type, such as those sold under the name "Luvitol HSB®" by BASF, of the polystyrene / copoly type (ethylene-propylene) such as those sold under the name "Kraton®" by the company Shell Chemical Co. or else the polystyrene / copoly (ethylene-butylene) type.

Among the gelling agents that can be used in the compositions according to the invention, mention may also be made of dextrin and fatty acid esters, such as dextrin palmitates, in particular such as those marketed under the names "Rheopearl TL®". &gt; or "Rheopearl KL®" by the company CHIBA FLOUR.

The composition according to the invention may further comprise fibers which make it possible to improve the lengthening effect.

By "fiber" it is necessary to understand an object of length L and of diameter D such that L is much greater than D, D being the diameter of the circle in which the section of the fiber is inscribed. In particular, the L / D ratio (or form factor) is chosen in the range from 3.5 to 2500, in particular from 5 to 500, and more particularly from 5 to 150.

The fibers that can be used in the composition of the invention may be fibers of synthetic or natural, mineral or organic origin. They can be short or long, unitary or organized, for example braided, hollow or full. Their shape can be any and in particular of circular or polygonal section (square, hexagonal or octagonal) depending on the specific application envisaged. In particular, their ends are blunt and / or polished to avoid injury.

In particular, the fibers have a length ranging from 1 μm to 10 mm, in particular from 0.1 mm to 5 mm and more particularly from 1 mm to 3.5 mm. Their section may be in a circle with a diameter ranging from 2 nm to 500 μm, in particular ranging from 100 nm to 100 μm and more particularly from 1 μm to 50 μm. The weight or titer of the fibers is often given in denier or decitex and represents the weight in gram for 9 km of yarn. The fibers according to the invention may in particular have a title chosen in the range from 0.15 to 30 denier and in particular from 0.18 to 18 denier.

The fibers may be those used in the manufacture of textiles and in particular silk fibers, of cotton, of wool, linen, cellulose fibers (in particular extracted from wood, vegetables or seaweed), of rayon, polyamide ("Nylon®"), viscose, acetate, especially rayon acetate, poly- (p-phenylene terephthalamide) (or aramid), especially "Kevlar®", acrylic polymer, especially polymethyl methacrylate or poly 2-hydroxyethyl methacrylate, polyolefin and especially polyethylene or polypropylene, of glass, silica, carbon in particular in graphite form, polytetrafluoroethylene (such as "Teflon®"), insoluble collagen, of polyesters, polyvinyl chloride or vinylidene, polyvinyl alcohol, polyacrylonitrile, chitosan, polyurethane, polyethylene phthalate, fibers formed from a mixture of polymers such as those mentioned above, like polyamide / polyester fibers.

Fibers used in surgery such as absorbable synthetic fibers prepared from glycolic acid and caprolactone ("Monocryl®" from JOHNSON &amp; JOHNSON) can also be used; resorbable synthetic fibers of the copolymer type of lactic acid and glycolic acid ("Vicryl®" from JOHNSON &amp; JOHNSON); terephthalic polyester fibers ("Ethibond®" from JOHNSON &amp; JOHNSON) and stainless steel wire ("Steel®" from JOHNSON &amp; JOHNSON).

Furthermore, the fibers may or may not be treated on the surface, coated or not. As coated fibers that may be used in the invention, mention may be made of polyamide fibers coated with copper sulphide for an anti-static effect (for example "R-STAT®" from RHODIA) or another polymer allowing an organization specific fibers (specific surface treatment) or surface treatment inducing color / hologram effects ("Lurex®" fiber from SILDOREX, for example).

In particular, fibers of synthetic origin and in particular organic fibers, such as those used in surgery, are used. Advantageously, it is possible to use insoluble fibers in water.

The fibers that can be used in the composition according to the invention are, in particular, fibers of polyamide, of cellulose, of poly-p-phenylene terephthalamide or of polyethylene. Their length (L) can range from 0.1 mm to 5 mm, in particular from 0.25 mm to 1.6 mm, and their mean diameter can range from 1 μm to 50 μm. In particular, it is possible to use the polyamide fibers marketed by Etablissements P. Bonte under the name "Polyamide 0.9 Dtex 3 mm®", having an average diameter of 6 microns, a title of about 0.9 dtex and a length ranging from 0.3 mm to 5 mm. It is also possible to use cellulose fibers (or rayon fibers) having an average diameter of 50 μm and a length ranging from 0.5 mm to 6 mm, such as those sold under the name "Natural rayon flock fiber RC1BE-N003-M04. ® &gt;&gt; by CLAREMONT FLOCK. Polyethylene fibers such as those sold under the name "Shurt Stuff 13,099 F®" by the company MINI FIBERS can also be used.

The composition according to the invention may also comprise so-called "rigid" fibers, as opposed to the fibers mentioned above, which are not rigid fibers.

The rigid fibers, initially substantially straight, when they are placed in a dispersing medium, do not see their shape substantially modified, which results in the angular condition defined below, reflecting a shape that can be described as always , substantially straight, linear. This angle condition reflects the stiffness of the fibers which can hardly be expressed by another parameter for objects having a size as small as the rigid fibers.

The rigidity of the fibers results in the following angular condition: advantageously, at least 50% by number, in particular at least 75% in number, and more particularly at least 90% by number of the fibers are such that the angle formed between the tangent to the longitudinal central axis of the fiber and the line connecting said end to the point on the longitudinal central axis of the fiber corresponding to the half of the length of the fiber is less than 15 ° and the angle formed between the tangent to the longitudinal central axis of the fiber at a point situated at the mid-length of the fiber and the straight line connecting one end to the point on the longitudinal central axis of the fiber corresponding to half the length of fiber is less than or equal to 15 °, for the same length of fiber ranging from 0.8 mm to 5 mm, in particular ranging from 1 mm to 4 mm, more particularly ranging from 1 mm to 3 mm, even 2 mm.

Advantageously, the angle, mentioned above, is measured at the two ends of the fiber and at a point situated at the mid-length of the fiber, in other words, in this case three measurements are made and the average of the angles measured is less than or equal to 15 °.

In particular, the tangent, at any point of the fiber, forms an angle less than 15 °.

In the present application, the angle formed by the tangent at a point of the fiber is the angle formed between the tangent to the longitudinal central axis of the fiber at said point of the fiber and the straight line connecting the end of the fiber. closest to said point to the point on the longitudinal central axis of the fiber corresponding to half the length of the fiber.

Generally, the rigid fibers that can be used in the composition according to the invention have the same length of fiber or a substantially identical length.

More precisely when one observes under the microscope, with a lens allowing a magnification of 2.5 and with a full field vision, a medium in which the rigid fibers are dispersed at a fiber concentration of 1% by weight, a majority of rigid fibers, that is at least 50% by number of the rigid fibers, in particular at least 75% by number of the rigid fibers, and more particularly at least 90% by number of the rigid fibers, must satisfy the angular condition defined above. The measurement leading to the value of the angle is made for the same length of fibers, this length is in the range from 0.8 mm to 5 mm, in particular from 1 to 4 mm, more particularly from 1 to 3 mm. mm, or even 2 mm.

The medium in which the observation is carried out is a dispersing medium which ensures good dispersion of the rigid fibers, for example water, an aqueous gel of clay or associative polyurethane. One can even make a direct observation of the composition containing the rigid fibers. A sample of the prepared composition or dispersion is placed between slide and coverslip for microscopic observation with an objective allowing a magnification of 2.5 and with full-field vision. Full-field vision makes it possible to see the fibers in their entirety.

The rigid fibers may be chosen from fibers of a synthetic polymer chosen from polyesters, polyurethanes, acrylic polymers, polyolefins and polyamides, in particular non-aromatic polyamides and aromatic polyimide-amides.

Examples of rigid fibers include fibers:<ul id="ul0010" list-style="dash" compact="compact"><li>of polyesters, such as those obtained by cutting yarn sold under the names &lt;&lt; FIBER 255-100-R11-242T SIZE 3 MM (octalobed section) &gt;&gt;, &lt;&lt; FIBER 265-34-R11-56T SIZE 3 MM ( round section) ® &gt;&gt;, "FIBER COOLMAX 50-34-591 SIZE 3 MM (tetralobed section) ® &gt;&gt; by the company DUPONT DE NEMOURS;</li><li>polyamides, such as those sold under the names "TRILOBAL NYLON 0.120-1.8 DPF®"; "TRILOBAL NYLON 0.120-18 DPF®"; "NYLON 0.120-6 DPF®" by CELLUSUEDE PRODUCTS; or obtained by cutting son sold under the name &lt;&lt; FIBER NOMEX BRAND 430 SIZE 3 MM® &gt;&gt; by the company DUPONT DE NEMOURS;</li><li>polyimide-amide such as those sold under the names &lt;&lt; KERMEL® &gt;&gt;, &lt;&lt; KERMEL TECH® &gt;&gt; by RHODIA;</li><li>poly (p-phenyleneterephthalamide) (or aramid) sold especially under the name "Kevlar®" by the company DuPont de Nemours;</li><li>fibers with a multilayer structure comprising alternating layers of polymers chosen from polyesters, acrylic polymers and polyamides, such as those described in documents EP-A-6921217, EP-A-686858 and US-A-5472798. Such fibers are sold under the names &lt;&lt; Morphotex® &gt;&gt;, &lt;&lt; Teijin Tetron Morphotex® &gt;&gt; by the company TEIJIN.</li></ul>

Particularly preferred rigid fibers are aromatic polymide-amide fibers.

Polyimide-amide yarns or fibers, which can be used for the compositions of the invention, are described, for example, in the document by R. PIGEON and P. ALLARD, Applied Macromolecular Chemistry, 40/41 (1974), pp. 139-158 (No. 600), or else in US-A-3,802,841, FR-A-2,079,785, EP-A1-0,360,728, EP-A-0 549 494, to which will be able to refer.

The preferred aromatic polyimide-amide fibers are polyimide-amide fibers comprising repeating units of the formula:<chemistry id="chem0003" num="0003"><img file="EP1516611A1_D0003.tif" /></chemistry> obtained by polycondensation of toluylene diisocyanate and trimellitic anhydride.

The fibers may be present in the composition according to the invention in a content ranging from 0.01% to 10% by weight, relative to the total weight of the composition, in particular from 0.1% to 5% by weight, and more particularly from 0.3% to 3% by weight.

As cosmetic active agents that can be used in the compositions according to the invention, mention may in particular be made of emollients, moisturizers, vitamins and especially solar filters.

Of course, those skilled in the art will take care to choose any additional additives and / or their amount so that the advantageous properties of the composition according to the invention are not, or not substantially impaired by the addition envisaged.

The choice of possible additives will of course depend on the type of composition envisaged.

The composition according to the invention for care and / or make-up of the skin and the lips may be in particular in the form of a foundation, a blush, an eye shadow, a lipstick or a care base for the lips, or a care cream for the body or face.

The composition according to the invention of keratinous fiber makeup may be in the form of a mascara, an eyebrow product, an eyeliner or a hair makeup product. In particular, the composition is a mascara. It may especially be a make-up composition, a composition to be applied to or under a make-up, also called "top-coat" or "base-coat", or alternatively a eyelash treatment composition.

<u>CHARACTERIZATION OF DRY MATTER</u>

For the purpose of the present invention, the "dry matter content" denotes the content of non-volatile matter.

This quantity of dry matter, commonly referred to as "dry extract" or in abbreviated form ES, of the compositions according to the invention is measured by heating the sample with infrared rays of 2 μm to 3.5 μm in length. wave. The substances contained in said compositions which have a high vapor pressure, evaporate under the effect of this radiation. Measuring the weight loss of the sample makes it possible to determine the "dry extract" of the composition. These measurements are performed using a commercial "LP16®" infrared desiccator from METTLER. This technique is fully described in the device documentation provided by METTLER.

The measurement protocol is as follows:

About 1 g of the composition is spread on a metal cup. This, after introduction into the desiccator, is subjected to a temperature of 120 ° C for one hour. The wet mass of the sample, corresponding to the initial mass and the dry mass of the sample, corresponding to the mass after exposure to radiation, are measured using a precision balance.

The dry matter content is calculated as follows:<maths id="math0001" num=""><math display="block"><mrow><mtext>Dry extract = 100 x (dry mass / wet mass).</mtext></mrow></math><img file="EP1516611A1_D0004.tif" /></maths>

The values ​​measured using the protocol described above may differ from the corresponding theoretical values ​​by plus or minus 1%.

The compositions according to the invention have in particular a solids content greater than or equal to 40%, in particular greater than or equal to 43%, in particular greater than or equal to 45%, and more particularly greater than or equal to 47%, or even 49%. % by weight relative to the total weight of the composition.

<u>RHEOLOGICAL CHARACTERIZATION</u>

The composition according to the invention can be further characterized by its viscoelastic behavior, in particular using different rheological parameters.

Generally speaking, a material is said to be viscoelastic when, under the effect of shearing, it possesses at the same time the characteristics of a purely elastic material, ie capable of storing energy and the characteristics of a material. purely viscous material, ie able to dissipate energy.

More particularly, the viscoelastic behavior of the compositions in accordance with the invention can be characterized by its stiffness modulus G, its elasticity δ and its flow threshold τ_c ; these parameters are defined in particular in the book &lt;&lt; Introduction to rheology &gt;&gt;, G. Couarraze and JL Grossiord, 2^th edition, 1991, Edition Lavoisier-Tec 1 Doc.

These parameters are determined by measurements carried out at 25 ° C. ± 0.5 ° C. by means of the "Haake RheoStress 600®" imposed stress rheometer of the THERMORHEO company, equipped with a stainless steel mobile with geometry plane / plane, the plane having a diameter of 20 mm and an air gap (distance between the lower plane - called stator plane - on which is deposited the composition and the upper plane - called rotor plane) of 0.3 mm. The two planes are striated to limit sliding phenomena to the walls of the planes.

Dynamic measurements are performed by applying a harmonic variation of the stress. In these experiments, the amplitudes of shear, shear rate and stress are small so as to remain within the linear viscoelastic domain of the material (conditions making it possible to evaluate the rheological characteristics of the composition at rest).

The viscoelastic linear domain is generally defined by the fact that the response of the material (ie the deformation) is at any moment directly proportional to the value of the applied force (ie the stress). In this field, the applied stresses are weak and the material undergoes deformations without modifying its microscopic structure. Under these conditions, the material is studied "at rest" and non-destructively.

The composition is subjected to a harmonic shear according to a stress τ (t) sinusoidally varying according to a pulsation ω (ω = 2Πν, where ν is the applied shear frequency). The composition thus sheared undergoes a stress τ (t) and responds according to a deformation γ (t) corresponding to micro deformations for which the stiffness modulus varies little according to the imposed constraint.

The stress τ (t) and the strain γ (t) are respectively defined by the following relations:<maths id="math0002" num=""><math display="block"><mrow><mtext mathvariant="italic">τ</mtext><mtext>(</mtext><mtext mathvariant="italic">t</mtext><msub><mrow><mtext>) = τ</mtext></mrow><mrow><mtext>0</mtext></mrow></msub><mtext> cos (ω ·</mtext><mtext mathvariant="italic">t</mtext><mtext>) γ (</mtext><mtext mathvariant="italic">t</mtext><msub><mrow><mtext>) = γ</mtext></mrow><mrow><mtext>0</mtext></mrow></msub><mtext> cos (ω ·</mtext><mtext mathvariant="italic">t</mtext><mtext>-</mtext><mtext mathvariant="italic">δ</mtext><mtext>)</mtext></mrow></math><img file="EP1516611A1_D0005.tif" /></maths> τ₀ being the maximum amplitude of the constraint and γ₀ being the maximum amplitude of the deformation. δ is the phase shift angle between the stress and the strain.

The measurements are made at a frequency of 1 Hz (v = 1 Hz).

This measures the evolution of the modulus of rigidity G (corresponding to the ratio of τ₀ on γ₀) and the elasticity δ (corresponding to the phase shift angle of the stress applied with respect to the measured strain) as a function of the stress τ (t) applied.

In particular, the deformation of the composition is measured for the stress zone in which the variation of modulus of rigidity G and of elasticity δ is less than 7% (area of ​​microdeformations) and thus the parameters known as "trays" are determined. &gt; Gp and δp. The threshold stress τ_c (corresponding to the minimum force that it is necessary to apply to the composition to cause its flow) is determined from the curve δ = f (τ) and corresponds to the value of τ for which δ (τ_c) = 1.05 δ_p.

The viscoelastic behavior of the compositions according to the invention is characterized by a plateau stiffness modulus Gp which may be less than or equal to 50,000 Pa, generally less than or equal to 35,000 Pa, in particular less than or equal to 30,000 Pa, in particular lower than or equal to 28,000 Pa, and more particularly less than or equal to 27,000 Pa, or even 25,000 Pa.

The compositions in accordance with the invention may furthermore have a flow threshold τ_c ranging from 10 Pa to 200 Pa, and in particular ranging from 20 Pa to 100 Pa.

<u>PROCESS OF PREPARATION</u>

The process for preparing the compositions according to the invention depends in particular on the nature of the wax or waxes used and, in particular, on the fact that the waxes are of the traditional type or of the micro wax type.

In a first variant, the wax (es) used (s) are of traditional type as defined above.

In such an alternative, the makeup compositions of the keratinous fibers are generally obtained by heating the wax or a mixture of several waxes at a temperature above the melting temperature of the wax having the highest melting point up to complete fusion, then mixing and cooling continuously to room temperature.

The volatile oil can be added during mixing or prior to the implementation of the latter.

It seems that kneading the composition instead of agitating it by a conventional method promotes the crystallization of the wax in the form of fine crystals forming small particles. It also seems that this mixing breaks the aggregates of possibly formed particles leading in the finished composition to a substantially homogeneous dispersion of small wax particles.

The kneading operation can be carried out, for example, in a roll mill having two rolls rotating in opposite directions between which the paste passes or more advantageously in a twin-screw kneader continuously which makes it possible to obtain a pulp of very high quality. constant in a reproducible way.

The conditions under which the kneading operation can be performed are described in patent application FR 94-00756, the contents of which are incorporated herein by reference.

When the composition comprises water and / or a water-soluble solvent and / or any additional ingredients, these may be introduced into the starting materials or optionally during kneading during cooling or in the finished composition.

This method of preparation of the compositions has the particular advantage of allowing the incorporation of heat-sensitive compounds as certain active ingredients since it allows their introduction at a temperature compatible with their stability and thanks to the short residence time in the kneader.

In a second variant of the invention, the wax (es) used are micro-waxes as defined above.

Because of its formulation in the form of particles, such a wax can be used directly at a temperature below its melting temperature. In other words, in this particular embodiment of preparation of the compositions according to the invention, the particles of micro-waxes are directly dispersed in the continuous phase, and not by forming them via fusion steps. recrystallization.

This wax dispersion step may in particular be carried out at a temperature below the melting temperature of the wax and especially at room temperature, which is of course advantageous in terms of ease of implementation of the preparation process.

The volatile oil is chosen from those defined above. In this particular embodiment of the preparation process, the water and / or the water-soluble solvent (s) and / or the additional ingredients as defined above, may be added according to the case either in the products starting, either in the finished composition.

In a third variant of the invention, the process for preparing the compositions uses both at least one wax of the traditional type and at least one micro wax as previously defined. In such a case, the wax of the traditional type or the mixture of waxes of traditional type in molten form is first introduced with volatile oil, and the mixture thus obtained is stirred or kneaded during its cooling. The micro wax or the mixture of micro waxes is introduced only when the temperature of the mixture containing the wax of traditional type is lower than the melting temperature of said micro wax or lower than the melting temperature of the micro wax of the mixture of micro waxes having the lowest melting temperature, and especially at room temperature.

Again, the water and / or the water-soluble solvent (s) and any additional ingredients may be added according to the case either in the starting materials, in the finished composition, or when the composition is mixed, during cooling.

The present invention also relates to a cosmetic process for the care and / or makeup of the skin in which a composition as defined above is applied to the skin.

The compositions for the skin may be applied in particular with the aid of a brush or a brush.

The subject of the present invention is also a process for making up keratinous fibers, in which a composition as defined above is applied to said keratinous fibers, in particular the eyelashes.

Such compositions may in particular be applied to the eyelashes with the aid of a brush or a comb. In the case of eyelash makeup, it is particularly advantageous to apply said composition with a make-up brush as described in patents FR 2 701 198, FR 2 605 505, EP 792 603 and EP 663 161. which reinforces the thickening effect.

The following examples are presented for illustrative and not limiting of the invention.

<u>Protocol for preparing compositions</u>

In the experimental part below, the waxes mentioned are of traditional type except where it is explicitly stated that it is a wax type wax.

at. <u>Process for the preparation of compositions comprising only waxes in the form of microparticles</u>

In at least one volatile oil, optionally in admixture with at least one polymer soluble in said oil and having at least one crystallizable part, and in this case the mixture having been preheated to a temperature of 45 ° C. and then cooled to At ambient temperature, the dyestuffs and the gelling agent are dispersed with stirring. With stirring, the wax is then added in the form of microparticles, as well as, if appropriate, the remaining ingredients of the composition.

The water and / or the water-soluble solvent (s) are in particular dispersed progressively with stirring.

b. <u>Preparation of Compositions Comprising Both Traditional Waxes and Waxes in the Form of Microparticles</u>

In at least one volatile oil, optionally in admixture with at least one polymer soluble in said volatile oil and having at least one crystallizable part, and in such a case the mixture having been preheated to a temperature of 45 ° C. and then cooled to a temperature of 45.degree. at room temperature, the dyestuffs and the gelling agent are dispersed with stirring. The resulting mixture is then heated to 45 ° C and the mixture of the traditional waxes previously heated until complete melting is added gradually. The mixture thus obtained is allowed to return to room temperature with stirring. The wax is then added in the form of microparticles, as well as, if appropriate, the remaining ingredients of the composition.

The water and / or the water-soluble solvent (s) are in particular dispersed progressively with stirring.

c. <u>Preparation of the compositions with a twin-screw mixer continuously</u>

The preparation is carried out in a continuous twin-screw mixer such as the "BC-21" model from CLEXTRAL and is carried out under the following conditions:<ul id="ul0011" list-style="dash" compact="compact"><li>inlet temperature: 100 ° C</li><li>outlet temperature: 20 ° C</li><li>flow rate = 3 kg / h</li><li>screw speed: 600 rpm.</li></ul>

The previously melted waxes are introduced at the top of the kneader at the same time as the volatile oil and the other ingredients, and then the mixture is cooled under twin-screw mixing continuously until the outlet temperature.

<u>Measurements of physical characteristics</u>

The measurement of the dry matter content is carried out according to the protocol described above.

The rheology measurements were carried out according to the protocols described previously using a "Haake RheoStress 600®" constrained-stress rheometer under the following conditions:<ul id="ul0012" list-style="dash" compact="compact"><li>measuring temperature 25 ° C,</li><li>180 sec at 25 ° C before the start of the measurement,</li><li>strain sweep from 1 to 10,000 Pa,</li><li>measuring frequency: 1 Hz.</li></ul>

<u>Examples 1 to 3</u>

Three waterproof mascaras were prepared according to the process described in b) respectively having the compositions presented in Table I below (in this table, the amounts indicated are in percentage by weight and expressed with respect to the total weight of the composition):<tables id="tabl0001" num="0001"><img file="EP1516611A1_D0006.tif" /></tables>

Different characteristics were studied <i>in vitro</i> of these compositions according to the protocols described above.

The results are presented in the following Table II:<tables id="tabl0002" num="0002"><img file="EP1516611A1_D0007.tif" /></tables>

The compositions obtained comprise more than 20% by weight of wax having an initial melting point above 45 ° C.

They also have particularly high solids content associated with an acceptable plateau rigidity module.

<u>Examples 4 and 5</u>

Two waterproof mascaras were prepared according to method a), respectively having the compositions shown in Table III below (in this table, the amounts indicated are in weight% and expressed relative to the total weight of the composition):<tables id="tabl0003" num="0003"><img file="EP1516611A1_D0008.tif" /></tables>

We have studied the different characteristics of these compositions <i>in vitro</i> according to the protocols described above.

The results are shown in Table IV below:<tables id="tabl0004" num="0004"><img file="EP1516611A1_D0009.tif" /></tables>

<u>Examples 6 and 7</u>

Three waterproof mascaras were prepared according to the method described in b) by mixing the ingredients presented in Table V below (in this table, the amounts indicated are in percent by weight and expressed relative to the total weight of the composition).<tables id="tabl0005" num="0005"><img file="EP1516611A1_D0010.tif" /></tables><tables id="tabl0006" num="0006"><img file="EP1516611A1_D0011.tif" /></tables>

The composition of Example 6 in fact comprises water in a proportion of 2.1% by weight relative to the total weight of the composition, the water coming from the latex used, namely "Mexomère PAM®&gt; &gt; the company CHIMEX.

Various in vitro characteristics of these compositions have been studied according to the protocols described above.

The results are shown in Table VI below.<tables id="tabl0007" num="0007"><img file="EP1516611A1_D0012.tif" /></tables>

<u>Example 8</u>

According to the method described in c), a waterproof mascara having the following composition was prepared:<ul id="ul0013" list-style="dash" compact="compact"><li>Microcrystalline Wax ("Microwax HW®" by PARAMELT) 30 g</li><li>Pigments 9.24 g</li><li>Rice starch 1.68 g</li><li>Vinyl acetate / allyl stearate copolymer ("Mexomer PQ®" from CHIMEX) 4.42 g</li><li>Vinyl Polylaurate ("PP® Mexomere" from CHIMEX) 1.5 g</li><li>Modified hectorite ("Bentone 38V®" from ELEMENTIS) 0.63 g</li><li>Propylene carbonate 0.21 g</li><li>Ethyl alcohol 3.0 g</li><li>Stearate of 12-hydroxy-stearic acid oligomer ("Solsperse 21000®" from AVECIA) 0.2 g</li><li>Preservative 0.4 g</li><li>Isododecane 48.72 g</li></ul>

This composition contains 30% by weight of wax having a melting point above 45 ° C and has a solids content of 48.28% by weight relative to the total weight of the composition.

<u>Example 9</u>

According to the method described in c), a waterproof mascara having the following composition was prepared:<ul id="ul0014" list-style="dash" compact="compact"><li>Microcrystalline Wax ("Microwax HW®" by PARAMELT) 30 g</li><li>Modified hectorite &lt;&lt; Bentone 38V® &gt;&gt; from ELEMENTIS) 5 g</li><li>Propylene carbonate 1.7 g</li><li>Pigments 15 g</li><li>Ethyl alcohol 3.0 g</li><li>Isododecane 45.3 g</li></ul>

This composition has a solids content of 51.7% by weight relative to the total weight of the composition.

<u>Example 10</u>

According to the method described in c), a waterproof mascara having the following composition was prepared:<ul id="ul0015" list-style="dash" compact="compact"><li>Microcrystalline Wax ("Microwax HW®" by PARAMELT) 38g</li><li>Vinyl acetate / allyl stearate copolymer ("Chimex Mexomer PQ®") 2.21 g</li><li>Vinyl Polylaurate ("PP® Mexomere" from CHIMEX) 0.75 g</li><li>Pigments 4.62 g</li><li>Stearate of 12-hydroxy-stearic acid oligomer (&lt;&lt; Solsperse 21000® &gt;&gt;) 0.27 g</li><li>Parlam oil 10 g</li><li>Ethyl alcohol 3.0 g</li><li>Isododecane 40.11 g</li></ul>

This composition contains 30% by weight of a wax having an initial melting point of greater than 45 ° C. and has a solids content of 56.98% by weight relative to the total weight of the composition.

<u>Examples 11 to 15</u>

The waterproof mascaras having the compositions shown in Table VII below were prepared according to the method described in c) (in this table, the quantities indicated are in percentage by weight and expressed relative to the total weight of the composition):<tables id="tabl0008" num="0008"><img file="EP1516611A1_D0013.tif" /></tables>

The compositions thus obtained make it possible to obtain a thickening makeup of the eyelashes and drying rapidly without reducing their resistance to water.

<u>Example 16</u>

The waterproof mascara having the following composition was prepared according to the method described in c):<ul id="ul0016" list-style="dash" compact="compact"><li>Carnauba wax 30 g</li><li>Modified hectorite ("Bentone 38V®" from ELEMENTIS) 5 g</li><li>Pigments 15 g</li><li>Isododecane 50 g</li></ul>

<u>Examples 17 to 21</u>

The waterproof mascaras having the compositions shown in Table VIII below (according to the method described in c) were prepared (in this table, the quantities indicated are in percentage by weight and expressed relative to the total weight of the composition).<tables id="tabl0009" num="0009"><img file="EP1516611A1_D0014.tif" /></tables>

The compositions thus obtained make it possible to obtain a thickening makeup of the eyelashes and drying rapidly without reducing their resistance to water.

<u>Example 22</u>

A W / O foundation having the following composition was prepared:

Phase A

<ul id="ul0017" list-style="dash" compact="compact"><li>Cetyl dimethicone copolyol ("Abil EM 90®" from GOLDSCHMIDT) 3 g</li><li>Isostearyl diglyceryl succinate (CONDEA Imwitor 780K®) 0.6 g</li><li>Mixture of pigments (iron oxides and hydrophobic titanium oxides) 10 g</li><li>MICRO POWDERS MICRO POWDERS Microcar wax (MICROARE 350®) 22 g</li><li>Allyl stearate / vinyl acetate copolymer ("Chimex Mexomer PQ®") 2 g</li><li>Perfume 0.5 g</li><li>Isododecane qs 100</li></ul>

Phase B

<ul id="ul0018" list-style="dash" compact="compact"><li>Water 10 g</li><li>Magnesium sulphate 0.7 g</li><li>Preservative (Methyl Paraben) 0.2 g</li></ul>

Phase C

<ul id="ul0019" list-style="dash" compact="compact"><li>Water 2g</li><li>Preservative (Diazolinyl urea) 0.25 g</li></ul>

Phase A is prepared by mixing with stirring the ethyl dimethicone copolyol, a part of the isododecane, isostearyl diglyceryl succinate, the wax and the copolymer and then heating at 50 ° C. To this mixture is added with stirring first a dispersion in the other part of the isododecane pigments previously milled using a three-roll grinder, then the perfume.

Phase B is prepared by mixing the various ingredients and then heating to boiling.

The foundation is obtained by emulsifying phase B in phase A with stirring and then adding phase C.