Compositions with anisic acid and glycerides
Abstract
A formulation for use on the skin, comprising a combination of anisic acid, or one of its salts or one of its C1-4 alkyl esters, and a C6-14 fatty acid monoglyceride.
Term
Term ended
Projected expiry passed 12 December 2023, 2.8 years ago.
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- Projected expiry
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11 claims: 6 independent, 5 dependent
- 1ES 2 320 643 T3 REIVINDICACIONES 1. Una formulación para uso sobre la piel, que comprende una combinación de ácido anísico, o una de sus sales o uno de sus ésteres de alquilo C 1-4 , y un monoglicérido de ácido graso C 6-14 .
- 2Una formulación de acuerdo con la reivindicación 1, que comprende:(a) de 0,01 a 2% en peso de ácido anísico, o una de sus sales o uno de sus ésteres de alquilo Ci-4, y (b) de 0,1 a 10% en peso de un monoglicérido de ácido graso C 6-14 .
- 3Una formulación de acuerdo con la reivindicación 1, que además comprende un agente conservante.
- 4Una formulación de acuerdo con la reivindicación 3, que además comprende un agente conservante seleccionado entre el grupo constituido por fenoxietanol, alquilparabenos y sus sales, yodopropinilbutilcarbamato, formaldehído, liberadores de formaldehído, alcohol bencílico, metilcloro-isotiazolinona, metilisotiazolinona, benzoato sódico, clorohexidina, digluconato, metildibromoglutaronitrilo, 5-bromo-5-nitro-1,3-dioxano, ácido benzoico, ácido deshidroacético, diazolidinilurea, poliaminopropilbiguanida, sorbato potásico, quaternium-15, ácido sórbico y triclosano o mezclas de ellos.
- 5Una formulación de acuerdo con las reivindicaciones 1-4, en la que el ácido anísico es ácido p-anísico, o una de sus sales o uno de sus ésteres de alquilo Ci-4.
- 6Una formulación de acuerdo con las reivindicaciones 1-4, en la que el monoglicérido de ácido graso C 6-14 es monoglicérido de ácido caproico, ácido caprílico, ácido cáprico, ácido láurico o ácido mirístico.
- 7Una formulación de acuerdo con la reivindicación 4, en la que el monoglicérido de ácido graso C 6-14 es caprilato de glicerilo.
- 8Una formulación de acuerdo con las reivindicaciones 1-3, que comprende:(a) de 0,01 a 2% en peso de ácido p-anísico, o una de sus sales o uno de sus ésteres, y (b) de 0,1 a 10% en peso de caprilato de glicerilo, (c) menos de 1% en peso de agente conservante.
- 9Una formulación de acuerdo con la reivindicación 8, en la que el agente conservante está presente en menos de 0,5% en peso.
- 10Una formulación de acuerdo con las reivindicaciones 1-3, que comprende (a) de 0,01 a 2% en peso de ácido p-anísico, o una de sus sales o uno de sus ésteres, y (b) de 0,1 a 10% de caprilato de glicerilo, (c) menos de 0,4% en peso de parabenos, o menos de 100 ppm de yodopropinilbutilcarbamato, o menos de 0,5% de fenoxietanol.
- 11Una formulación de acuerdo con cualquiera de las reivindicaciones 1-10, que además comprende DHA.
Independent claims11
96 paragraphs in 3 sections, as filed
ES 2 320 643 T3
DESCRIPTION
Compositions with anisic acid and glycerides.
Field of the invention
This invention relates to formulations containing a combination of anisic acid, or one of its salts or one of its esters, and a C fatty acid monoglyceride<sub>6-14</sub> and to the use of such combinations as a preservative system.
Background of the invention
Preservatives are ingredients that have microbial activity that are frequently used in cosmetic skin care products. Preservatives are used to protect these products against degradation or putrefaction, so that these products are protected from decomposition and deterioration and remain stable for long periods of time, in particular during the entire shelf life of the products.
A disadvantage of using such agents is that they can cause adverse effects such as allergic responses and irritation. Examples of preservatives that are less tolerated, especially at increased concentration, are parabens and phenoxyethanol.
This is the case especially when cosmetic formulations containing preservatives are applied to sensitive skin types such as atopic skin types. This is the reason that, so far, cosmetic formulations that can be applied to sensitive skin types (such as, for example, atopic skin, infant skin, sun-altered skin, allergenic skin) contain less preservatives and, therefore, they are more likely to be affected and degraded by microorganisms, being also a source of microbial contamination.
Preservatives should preferably be present in as low a concentration as possible. Obviously, a limiting factor is that the formulations need to be adequately protected. Therefore, one could be inclined to reduce the amount of preservative in cosmetic formulations, in particular in those formulations that are used or can be used on sensitive skin types. By doing so, the side effects could be expected to decrease or even disappear completely. However, this could result in the concentration of the preservative being too low to be effective, resulting in an unacceptable risk that the formulation would be affected by microorganisms.
Therefore, it would be desirable to provide formulations for skin care or cosmetic use that are sufficiently protected against microbiological contamination and are not susceptible to microbiological degradation and deterioration. Additionally, it would be desirable to provide such formulations free of adverse effects that are typically associated with the use of traditional preservatives, in particular, in the case of the application of cosmetic formulations to sensitive skin types.
Another reason for having low amounts of preservatives in formulations is that they can react with certain components present in formulations, in particular with certain sensitive active ingredients. Therefore, certain formulation categories are not easy to preserve. A particular class of product is that of self-tanning products, in particular those based on dihydroxyacetone (DHA), which is a component that is easily broken down by physical as well as chemical causes. The presence of certain ingredients in formulations containing DHA promotes the degradation of this active ingredient and compromises the stability of self tanning formulations based on DHA.
Therefore, it is a particular need to have preservative systems that are effective in DHA-based self tanning formulations.
Document FR-2 834 459 describes the use of a combination of anisic acid, a salt or a polyol alkyl ester and a cationic surfactant as an antimicrobial agent in cosmetic formulations, in particular in hair treatment compositions such as shampoos.
In EP 0 884 045 A1 a composition is provided which is useful for coloring the skin by self tanning and which has improved stability. These compositions comprise from about 0.5% to about 20.0% by weight of a self tanning skin coloring agent such as dihydroxyacetone, from about 2.0% to about 40% by weight of a polyethoxyglycol, preferably ethoxydiglycol, and from about 0.1% to about 15.0% by weight of a polyol comprising a polyhydroxy compound having at least three hydroxyl groups and at least three carbon atoms, which is preferably D-sorbitol. In an alternative embodiment, in addition to the three ingredients mentioned, the composition may also comprise from about 0.1% to about 8.0% by weight of a water soluble dihydroxy compound having at least two and up to eight carbon atoms, preferably ethylene glycol, and an acidifying agent in an amount sufficient to maintain the pH of the total composition in the range of about 3.5 to about 4.5. Suitable acidifying agents can be selected from the group consisting essentially of acetic, adipic, anisic, benzoic, boric, carbonic, cinnamic, citric, diphosphonic, formic, fumári acids.
ES 2 320 643 T3 co, gallic, glutaric, glycolic, lactic, maleic, malic, malonic, oxalic, italic, propionic, pyrogallic, pyruvic, salicylic, succinic, tartaric and vanillic. With the aforementioned compositions the progress of the degradation of compounds such as dihydroxyacetone can be delayed.
JP 48 019940 B describes a cosmetic composition comprising a suitable amount of caprylic acid monoglyceride or capric acid monoglyceride, preferably in an amount of not more than 20% by weight. The mentioned monoglycerides have an antiseptic action and can prevent the deterioration of cosmetic compositions such as creams, emulsions, make-up cosmetics, hair cosmetics, detergents, medicinal cosmetics, etc.
From US 4,645,662 it is known that an oral composition such as a toothpaste can be derived to prevent and remedy dentin hypersensitivity, comprising an aluminum and a carboxylate compound in a solubilized state and having a pH of more than 5. The carboxylate compound is a monocarboxylate selected from lactate, gluconate, and glycolate, and the mono ratio of the carboxylate compound to aluminum is 0.7 to 4. This composition may further comprise from 10 to 17% by weight of a humectant such as sorbitol, from 0 to 7% by weight of a surfactant such as a hydrogenated coconut fatty acid monoglyceride and from 0 to 1% by weight of a sweetener. , for example saccharin, or a preservative such as a lower fatty acid monoglyceride.
According to GB 297,074 A, food products and technical and pharmaceutical preparations can be preserved with the use of a non-toxic phenol ether or phenol ether derivative free phenols.
The formulations of the present invention are intended to meet these needs. The use of a combination of anisic acid and certain fatty acid monoglycerides makes it possible to reduce the amount of preservative agents or to completely eliminate such traditional preservatives in cosmetic and skin care formulations and in particular allows to provide preservative systems in self-tanning formulations based on DHA .
Anisic acid and glyceryl caprylate are not currently used as preservatives. Anisic acid is used as a fragrance material and glyceryl caprylate is used as a humectant and emollient.
Summary of the invention
The present invention concerns formulations for use on the skin, which comprise a combination of anisic acid or one of its salts, or one of its C-alkyl esters.<sub>1-4</sub>, and a C fatty acid monoglyceride<sub>6-14</sub>.
In an alternative aspect, the invention concerns the use of a combination of anisic acid or one of its salts, or one of its C-alkyl esters.<sub>1-4</sub>, and a C fatty acid monoglyceride<sub>6-14</sub> as a preservative system. This invention also concerns the use of a combination of anisic acid or one of its salts, or one of its Ci-4 alkyl esters, and a C-fatty acid monoglyceride.<sub>6-14</sub> to reduce the amount of preservative agents in formulations for topical use.
The present invention concerns formulations for topical use comprising:
(a) from 0.01 to 2% of anisic acid, or one of its salts, or one of its esters, and (b) from 0.1 to 10% of monoglyceride of fatty acid C<sub>6-14</sub>.
Formulations according to the present invention having a low content of preservatives are preferred.
In a preferred aspect, this invention concerns self-tanning formulations containing dihydroxyacetone as self-tanning active ingredient and a combination of anisic acid or one of its salts, or one of its C-alkyl esters.<sub>1-4</sub>, and a C fatty acid monoglyceride<sub>6-14</sub>.
In another aspect, a formulation defined herein is provided wherein the preservative is present in an amount that is less than effective.
Detailed description of the invention
The formulations of this invention contain anisic acid or o-methoxybenzoic, m-methoxybenzoic or p-methoxybenzoic acid, or one of their salts, or one of their C-alkyl esters.<sub>1-4</sub>. The salts comprise non-toxic salts such as alkali metal salts, in particular the sodium and potassium salts, the alkaline earth metal salts, in particular the magnesium and calcium salts, and the ammonium or ammonium-derived salts such as the alkylammonium salts, triethanolamine and the like. C alkyl esters<sub>1-4</sub> They include the esters of methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl and t-butyl.
P-anisic acid, or one of its salts or one of its C alkyl esters, is preferred.<sub>1-4</sub>.
ES 2 320 643 T3
Fatty acid C<sub>6-14</sub> of the monoglycerides is a substituted or unsubstituted, saturated or unsaturated, straight or branched chain fatty acid having a chain length of from about 6 to about 14 carbon atoms. Examples are caproic acid, caprylic acid, capric acid, lauric acid and myristic acid. C fatty acid monoglycerides are preferred.<sub>6-10</sub>, in particular, C fatty acid monoglycerides<sub>8</sub>.
A particularly preferred C6-i4 fatty acid monoglyceride is glyceryl caprylate.
Anisic acid can be present at concentrations of 0.01 to 2% by weight, preferably 0.1 to 1% by weight, for example, at a concentration of about 0.2% by weight, calculated relative to pure acid. . In the case of salts or esters, these values must be recalculated accordingly.
The monoglycerides may be present at concentrations of 0.1 to 10% by weight, preferably 0.3 to 5% by weight, more preferably 0.5 to 3% by weight, for example, at a concentration of about 1% in weigh.
In a particular aspect, the present invention concerns formulations for topical use comprising:
(a) from 0.01 to 2% by weight of p-anisic acid, or one of its salts or one of its esters, (b) from 0.1 to 10% by weight of glyceryl caprylate.
In yet another particular aspect, the present invention concerns formulations for topical use comprising (a) from 0.01 to 2% by weight of p-anisic acid, or one of its salts or one of its esters, and (b) 0.1 to 10% by weight of glyceryl caprylate, (c) less than 1% by weight of a preservative agent, in particular less than 0.5% by weight of a preservative agent.
Specific embodiments are formulations for topical use that comprise (a) from 0.01 to 2% by weight of p-anisic acid, or one of its salts or one of its esters, and (b) from 0.1 to 10% in weight of glyceryl caprylate, (c) less than 0.4% by weight of parabens, or less than 100 ppm of iodopropynylbutylcarbamate, or less than 0.5% of phenoxyethanol.
Traditional preservatives include phenoxyethanol, alkyl parabens, and their salts, in particular their alkali metal salts, such as the sodium salts (for example, C-alkyl<sub>1-6</sub> parabens such as methyl, ethyl, propyl, butyl parabens and the like), chlorhexidine and the like, iodopropynylbutylcarbamate, also called butyl-3-iodo-2-propynyl-carbamate. Other preservatives are formaldehyde or formaldehyde releasers, for example DMDM hydantoin, benzyl alcohol, methylchloroisothiazolinone, methylisothiazolinone, sodium benzoate, chlorhexidine, digluconate, methyldibromo glutanitrile, 5-bromo-5-nitro-1,3-dioxane, benzo-1,3-dioxane acid. dehydroacetic, diazolidinylurea, polyaminopropylbiguanide, potassium sorbate, quaternium-15, sorbic acid, triclosan, and the like. As used herein, the term "preservative" also encompasses mixtures of preservatives.
The weight ratio of anisic acid to the total amount of C fatty acid monoglycerides<sub>6-14</sub>, that is, anisic acid: C fatty acid monoglycerides<sub>6-14</sub>, it can be in the range from 20: 1 to 1: 1000, in particular from 15: 1 to 1: 100, more in particular from 10: 1 to 1:30, even more in particular from 1: 1 to 1:20 , or 1: 1 to 1:10. Preferably, the mentioned ratio is in the range of 1: 2 to 1.8, for example it is about 1: 5. The weight ratios expressed here are relative to anisic acid and need to be recalculated accordingly when used in salt or ester form.
The term "effective preservative activity" means that its activity is such that the composition or formulation is protected for a sustained period of time, in particular during the so-called "shelf life" of the product. The "shelf life" of a product is determined according to procedures generally known in the art.
The topical formulations of the invention comprise both dermatological formulations (or topical pharmaceutical formulations) and cosmetic formulations. Such topical formulations may further contain other ingredients or additives used in dermatological or cosmetic formulations, including other active ingredients.
The formulations according to the present invention are formulated in forms that are useful in cosmetic products. Of particular interest are formulations that are in emulsion form. The formulations are in particular for application on sensitive skin. Embodiments of particular interest are formulations for use in self tanning products. These comprise any of the formulations described herein which additionally comprise an effective amount of a self tanning agent, in particular DHA. In most cases, self-tanning formulations are used on sensitive skin because users who have this type of skin want
ES 2 320 643 T3 have a brown skin color, but are unwilling or unable to risk damaging the skin from exposure to solar radiation.
Self tanning formulations contain an effective amount of self tanning active ingredient, particularly DHA. The self tanning active ingredient may be present in concentrations that are in the range of 1-10% by weight, preferably 2-8% by weight, for example about 5% by weight.
Topical formulations according to the present invention may additionally contain other ingredients or additives such as solvents, surfactants, emulsifiers, consistency factors, conditioners, emollients, skin care ingredients, moisturizers, thickeners, lubricants, fillers, antioxidants, preservatives , active ingredients, in particular dermatologically active ingredients, fragrance agents and the like.
The formulations can contain surfactants, which can be cationic, nonionic or amphoteric. The group of suitable surfactants comprises:
alkyl sulfates, for example sodium lauryl sulfate, ammonium lauryl sulfate, sodium cetearyl sulfate,
- alkylsulfoacetates, for example sodium lauryl sulfoacetate, alkyl ether sulfates, for example sodium lauryl ether sulfate, sodium tridecyl ether sulfate, sodium polyethylene glycol oleyl ether sulfate, ammonium lauryl ether sulfate,
- alkyl ether sulfosuccinates, for example disodium lauryl ether sulfosuccinate,
- alkylglycosides, for example decylglucoside, laurylglucoside,
- alkyl isthionates,
- amphoteric teensioactives, for example, cocoamidopropylbetaine, sodium cocoamphoacetate, sodium lauroamphoacetate, disodium lauroamphoacetate, disodium cocoampho diacetate, sodium lauroamphopropionate, disodium lauroamphopropionate, potassium or ammonium betayl amidoamidopropylene salts of the aforementioned beta-caprimidobetamine, potassium or capramidoamidoamidopropylene, potassium or ammonium salts
- fatty alcohol polyglycol ethers.
Suitable emulsifiers are, for example, anionics such as fatty acid salts, for example sodium stearate or sodium palmitate, organic soaps, for example mono-, di- or triethanolaminooleate, sulphated or sulphonated compounds, for example sodium lauryl sulfate or sodium cetylsulfonate , saponins, lamepons, cationic such as quaternary ammonium salts, nonionic such as fatty alcohols, fatty acid esters with saturated or unsaturated fatty acids, polyoxyethylene esters or polyoxyethylene ethers of fatty acids, polymers of ethylene oxide and propylene oxide or propylene glycol, amphoters such as phosphatides, proteins such as gelatin, caseinalkylamidobetaines, alkylbetaines and amphoglycinates, alkylphosphates, alkylpolyoxyethylenephosphates, for example, the corresponding silicone or alkyl polymethylene phosphate derivatives or derivatives of silicone .
Suitable consistency factors are, for example, fatty alcohols or their mixtures with fatty acid esters, for example ethoxylated lanolin alcohol, aluminum stearates, carbomers, cetyl alcohol, glyceryl oleate, glyceryl stearate, glyceryl stearate (and ) PEG 100 stearate, magnesium stearate, magnesium sulfate, oleic acid, stearic acid, stearyl alcohol, myristyl myristate, isopropyl palmitate, beeswax and their synthetic equivalents, carbomers, etc. Suitable conditioners are, for example, alkylamidoammonium lactate, cetrimonium chloride and distearoylethylhydroxyethylammonium methosulfate and cetearyl alcohol, cetyldimethicone, cetyl rhinooleate, dimethicone, laureth-23, laureth-4, polydecene, retinyl palmitate, quaternized protein hydrolysates. quaternized and starch derivatives, quaternized copolymers of acrylic or methacrylic acid or their salts, quaternized silicone derivatives.
Suitable emollients are, for example, cetearyl isononanoate, cetearyl octanoate, decyl oleate, isooctyl stearate, coconut caprylate / caprate, ethylhexyl hydroxystearate, ethylhexyl isononanoate, isopropyl isoystearate, isopropyl oleate, isopropyl oleate hexyl, liquid paraffin, PEG-75 lanolin, PEG-7 glyceryl cocoate, petrolatum, ozokerite, cyclomethicone, dimethicone, dimethicone copolyol, dicaprylyl ether, butirospermum parkii, jojoba, canola, carnauba wax, copernicia cerifera, evening primrose, African palm, almond tree, squalene, corn, glycine soybean, sunflower, lanolin, castor oil, hydrogenated, hydrogenated coconut oil, hydrogenated polyisobutene, sucrose cocoate, stearoxydimethicone, lanolin alcohol, isohexadecane.
Suitable moisturizers are, for example, butylene glycol, cetyl alcohol, dimethicone, myristyl tartrate, glucose, glycereth-26, glycerin, glyceryl stearate, hydrolyzed milk protein, lactic acid, lactose and other sugars, laureth-8, lecithin, octooxyglycerin , PEG-12, PEG-135, PEG-150, PEG-20, PEG-8, pentylene glycine, hexylene glycol, phytantriol, polyquaternium-39, PEG-20 methylglucose ether, propylene glycol, sodium hyaluronate, sodium lactate, sodium PCA, sorbitol, succinoglycan, synthetic beeswax, tri-alkyl citrate C<sub>14</sub>_<sub>15</sub>, starch.
Suitable thickeners are, for example, acrylates / steareth-20 methacrylate copolymer, carbomer, carboxymethyl starch, cera alba, dimethicone / vinyldimethicone cross-linked polymer, propylene glycol alginate, hydroxyethyl
ES 2 320 643 T3 cellulose, hydroxypropylmethylcellulose, silica, silica dimethyl silylate, xanthan gum, hydrogenated butylene / ethylene / styrene copolymer.
Suitable lubricants are, for example, adipic acid, fumaric acid and its salts, glycerol triacetet, sodium or magnesium lauryl sulfate, magnesium stearate, solid polyethylene glycol, polyvinylpyrrolidone, boric acid, monolaurate or monopalmitate, myristyl alcohol, cetearyl alcohol, cetyl alcohol. , calcium or magnesium salts of higher fatty acids, mono-, di- or triglycerides of higher fatty acids, polytetrafluoroethylene.
Examples of active agents for use in the formulations include anti-inflammatory agents, anti-irritant compounds, anti-itch agents, moisturizing agents, skin care ingredients, plant extracts, vitamins, anti-itch actives, anti-irritants, anti-dandruff agents, anti-aging or anti-wrinkle agents. , skin tightening agents such as dimethylaminoethanol (DMAE) and, in particular, its salt forms. Other suitable active ingredients are, for example, Medicago officinalis, allantoin, aloe vera, oats, beta-carotene, bisabol, borage, camphor, cetylpyridinium chloride, common chamomile, copper peptides such as copper tripeptide-1, dichlorophenylimidazoldioxolane, ethylpanthenol, farnesol , ferulic acid, yellow gentian, Ginkgo biloba, soybean, Hammamelis virginiana, heliotropin, hydrolyzed wheat protein, lactose, linalool, lysine, mango, mannitol, menthol, menthol lactate, olaflur, rice, panthenol, potassium aspartate, potassium sorbate, almond tree, retinoids such as retinol, retinal, retinoic acid, retinol esters such as retinyl palmitate, castor, salicylic acid, sarcosine, sodium carboxymethyl betaglycan, sodium palmyl cocoylamino acids, sodium palmyl hyalurite sodium, talc, tocopherol, tocopheryl acetate, tyrosine, urea, valine, zinc oxide, zinc sulfate, and the like.
The formulations of the invention may be water-based or they may be emulsions, both oil-in-water, and water-in-oil, in aqueous solutions, in PIT (phase inversion temperature) emulsions, in oily solutions, in foaming cosmetic formulations (foams), and in so-called multiple emulsions, for example in triple emulsions (such as water / oil / water emulsions). The formulations of the invention can be in the form of shampoos, gels, liquids or lotions. They can be used in shampoos, hair conditioners, hair dyes, hair preparations, aftershave lotions, soaps and detergents for the bathroom, fragrant preparations, sunscreen products, indoor tanning products, sun preparations body and hands, products for personal cleansing, shaving preparations, toners, preparations and other adjuvants to fix the hair, moisturizing preparations, skin care preparations and the like.
The topical formulations of the invention are prepared by mixing the ingredients individually or by mixing them in groups. Then other ingredients can be added. The solvent can be added after mixing, or the components are mixed while present in a solvent. A premix of anisic acid, or a salt or an ester thereof and a C fatty acid monoglyceride, can be prepared first.<sub>6</sub>_<sub>14</sub>, optionally mixed with a suitable solvent, then the other components are added.
The formulations of the present invention are useful for application on sensitive skin types, especially people with an atopic skin type.
In another aspect, this invention concerns the synergistic effects between two agents, anisic acid or one of its salts or one of its esters, on the one hand, a C fatty acid monoglyceride.<sub>6</sub>_<sub>14</sub> on the other, in terms of antimicrobiological activity, as well as antimicrobiological spectrum. The use of anisic acid or one of its salts or one of its esters, and a C fatty acid monoglyceride<sub>6</sub>_<sub>14</sub> In cosmetic formulations, it results in broad antimicrobial protection and good skin tolerance. Antimicrobial protection is also against bacteria such as fungi, in particular against species such as Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Candida albicans, Aspergillus Niger.
Combinations of anisic acid or one of its salts or one of its esters, and glyceryl caprylate can be used as a preservative system in formulations for use on the skin, such as personal care or cosmetic formulations. The aforementioned compositions make it possible to reduce the amount of traditional preservatives in such formulations, or even to completely eliminate such preservatives, and are also useful in formulations for application to sensitive skin types. The mentioned combinations can be used in particular in formulations containing labile ingredients such as active ingredients that are broken down by traditional preservative ingredients. An example of such active ingredients is DHA. Therefore, the combinations of the present invention may have use in formulations, more particularly emulsions, for use in self-tanning applications.
Another example of active ingredients is sunscreens and thus the formulations of the invention may be in the form of sunscreens formulations.
The formulations of the invention are particularly attractive because the agents contained therein have a good action against Staphylococcus aureus and fungi such as Apergillus niger. The formulations of the invention are therefore very useful in cases where it is necessary to decrease the amount of parabens because typically parabens are used for protection against fungi. This is the case in particular with atopic skin types that have a tendency to develop this class of bacteria and that have little tolerance for parabens.
Furthermore, the combination of the two agents mentioned hereinabove may have pharmaceutical applications and, to this end, may be formulated into formulations suitable for topical pharmaceutical applications. Thus,
ES 2 320 643 T3 In yet another aspect, the invention provides topical pharmaceutical compositions comprising a composition as defined herein. The composition is present in an amount to effectively preserve said pharmaceutical compositions.
The invention is further illustrated by the following example.
Example
Self-tanning emulsion
<td>Ingredients (INCI)</td><td>% in weigh</td>
<td>Water</td><td> 64,5805</td>
<td>Ethylhexyl salicylate</td><td> 10,00</td>
<td>Dihydroxyacetone</td><td> 10,00</td>
<td>Ethylhexyl stearate</td><td> 5,00</td>
<td>Sorbitol</td><td> 2,10</td>
<td>Cyclohexasiloxane</td><td> 1,90</td>
<td>Arachidyl alcohol</td><td> 1,65</td>
<td>Glyceryl Caprylate</td><td> 1,00</td>
<td>Palm glyceride citrate</td><td> 0,0255</td>
<td>hydrogenated</td><td></td>
<td>Behenyl alcohol</td><td> 0,90</td>
<td>Arachidylglucoside</td><td> 0,45</td>
<td>PEG-100 stearate</td><td> 0,75</td>
<td>Glyceryl stearate</td><td> 0,75</td>
<td>Cetyl alcohol</td><td> 0,50</td>
<td>P-anisic acid</td><td> 0,20</td>
<td>Disodium EDTA</td><td> 0,10</td>
<td>Tocopherol</td><td> 0,087</td>
<td>Sodium hydroxide</td><td> 0,007</td>
<td>TOTAL</td><td> 100,00</td>
A first mixture containing the lipophilic components and a second mixture containing the water and the water-compatible ingredients were prepared. Subsequently, the oil phase was added to the aqueous phase with vigorous stirring to form an emulsion.
Contents3
11 members in 7 offices
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 03293147 | European Patent Office (EPO) | A | |
| 03293147 | – | – | – |
| EP20030293147 | – | – | – |
Members11
| Document | Office | Kind | |
|---|---|---|---|
| CA2489932A1 | Canada | A1 | |
| EP1541124A1 | European Patent Office (EPO) | A1 | |
| US2005245608A1 | United States of America | A1 | |
| US7262217B2 | United States of America | B2 | |
| EP1541124B1 | European Patent Office (EPO) | B1 | |
| AT422350T | Austria | T | |
| ATE422350T1 | Austria | T1 | |
| DE60326150D1 | Germany | D1 | |
| DK1541124T3 | Denmark | T3 | |
| ES2320643T3This record | Spain | T3 | |
| CA2489932C | Canada | C |
Numbers
- Publication
- 2320643
- Publication, DOCDB
- 2320643
- Publication, EPODOC
- ES2320643T
- Application
- 3293147
- Application, DOCDB
- 03293147
- Application, EPODOC
- ES20030293147T
Titles2
- Spanish
- COMPOSICIONES CON ACIDO ANISICO Y GLICERIDOS.
- English
- COMPOSITIONS WITH ANISIC ACID AND GLYCERIDES.
Classification
- CPC, 6
- A61K8/375
- A61Q19/005
- A61K8/368
- A61K2800/524
- A61K2800/59
- A61Q19/04
- IPC, 4
- A61K8 37
- A61K8 368
- A61Q19 00
- A61Q19 04