FR2832062A1 - Composition in the form of an oil-in-water emulsion, useful for cosmetic treatment of the skin, hair or lips, includes a polyethylene glycol fatty acid monoester and a sulfo-functional polymer - Google Patents

Abstract

Composition in the form of an oil-in-water emulsion includes a polyethylene glycol fatty acid monoester and a polymer of an ethylenically unsaturated sulfonic acid monomer. An Independent claim is also included for cosmetic treatment of the skin, hair and/or lips by applying the above composition.

Description

<Desc / Clms Page number 1>

The present application relates to a composition in the form of a water-in-water emulsion containing at least one polymer comprising at least one ethylenically unsaturated monomer and with a sulfonic group, and at least one polyethylene glycol and fatty acid monoester, and the use of said composition, especially for the care and / or treatment of the skin of the body or face, hair and / or lips, and especially for the care of dry skin and / or dry lips.

For various reasons related in particular to a better comfort of use (softness, emollience and others), the current cosmetic compositions are most often in the form of an emulsion of the type oil-in-water (O / W) constituted an aqueous dispersant continuous phase and an oily disperse discontinuous phase or a water-in-oil (W / O) emulsion consisting of an oily dispersant continuous phase and an aqueous dispersed discontinuous phase. O / W emulsions are the most in demand in the cosmetics field because they comprise, as an external phase, an aqueous phase, which gives them, when applied to the skin, a cooler, less greasy feel. lighter than W / O emulsions.

The emulsions are generally stabilized by suitable emulsifying surfactants which, thanks to their amphiphilic structure, are placed at the oil / water interface and thus stabilize the dispersed droplets. These emulsifiers however have the disadvantage of being penetrating and potentially irritating to the skin, eyes and scalp, especially for sensitive skin subjects.

In addition, such emulsions may have insufficient cosmetic and physicochemical properties (oily touch, instability over time). Increasing the surfactant level generally does not solve the problems mentioned. The required stability is not always achieved and the cosmetic properties are not improved (waxy touch, heavy, lack of freshness on application). Moreover, as indicated above, it is also disadvised to use a too high level of surfactant for reasons of safety.

A solution to overcome both instability phenomena of O / W emulsions (creaming and phase shift) and irritation phenomena consists in preparing emulsions free of surfactants and containing thickeners whose function is to create, in the aqueous phase, a gelled matrix for freezing the oily droplets and ensuring mechanical maintenance of the entire emulsion. A surfactant is generally understood to mean an emulsion containing less than about 0.5% surfactant. For example, it is known from EP-A-815844 to prepare surfactant-free emulsions containing a crosslinked 2-acrylamido-2-methylpropane sulfonic acid polymer (AMPS polymer) such as the product marketed by the company. Cariant under the name Hostacerin AMPS. These emulsions have many qualities on application, such as softness, freshness, and spreadability.

However, some active agents tend to destabilize emulsions without surfactant, even those gelated by a polymer and even emulsions gelled by a

<Desc / Clms Page number 2>

 polymer of AMPS. Thus, surfactant-free emulsions containing an AMPS polymer are destabilized by amino acids and amino acid-rich actives. These active agents may be milk proteins and peptides, for example, which have numerous beneficial effects on the skin because they are moisturizing, and they also have tensor, astringent and bioconditioning effects. But it is preferably plant-based active, that for some years, it is preferred to use instead of milk proteins. As extracts of plant origin rich in amino acid, mention may be made, for example, of hibiscus extracts, and in particular those described in document WO-A-98-46205 (Serobiological Laboratories).

Thus, it is difficult to incorporate amino acids and amino acid-rich extracts in surfactant-free emulsions, even those containing an AMPS polymer, since these actives tend to destabilize these emulsions. The emulsions obtained break, that is to say that a separation of the aqueous and oily phases is observed, and, on a microscopic scale, the formation of large globules of oily phase instead of having small distributed droplets. in the external aqueous phase.

The objective of the invention is to be able to produce stable oil-in-water emulsions, said without surfactant that is to say containing less than about 0.5% by weight of active surfactant material, and having good cosmetic properties, without having the disadvantages of the prior art, that is to say stable whatever the active ingredients contained in the emulsion.

The Applicant has unexpectedly discovered that such emulsions can be obtained by adding a monoester of polyethylene glycol and of fatty acid, which even in very small quantities, makes it possible to achieve the object of the invention and to obtain a stable emulsion even in the presence of destabilizing agents such as amino acids.

Thus, the present invention relates to a composition in the form of an oil-in-water emulsion comprising, in a physiologically acceptable medium, an oily phase dispersed in an aqueous phase, characterized in that it contains at least one fatty acid monoester and polyethylene glycol, and at least one polymer comprising at least one ethylenically unsaturated monomer and sulfonic group.

Since the composition according to the invention is intended for topical application, it contains a physiologically acceptable medium, that is to say compatible with keratin materials such as the skin, the lips, the scalp, the eyes and / or the fibers. keratin (hair and eyelashes).

The resulting composition has a homogeneous texture and is pleasant to the application.

It is a fine emulsion, that is to say that macroscopically, it has an emulsified appearance, and microscopically, there are few large globules of fat phase (also called oily phase), but it has on the contrary fine droplets fatty phase regularly distributed in the aqueous phase, and the emulsion background is very fine.

<Desc / Clms Page number 3>

 In addition, although containing substantially no surfactant, the composition of the invention remains stable over time both at room temperature and at higher temperatures, and it retains these properties even in the presence of destabilizing agents and in particular amino acid or active ingredient containing it, and in particular hisbiscus extract.

As is shown hereinafter a comparative example, only monoesters of fatty acid and of polyethylene glycol are suitable, the surfactants other than these monoesters, usually used in O / W emulsions, do not make it possible to stabilize the emulsion.

Also, another subject of the invention is the use of at least one fatty acid monoester and of polyethylene glycol, for stabilizing a composition in the form of an O / W emulsion, containing at least one polymer comprising at least one monomer. with ethylenic unsaturation and with a sulfonic group, and at least one amino acid or an active agent containing it, the composition containing less than about 0.5% by weight of active surfactant material.

The term "less than 0.5% of surfactant, the fact that the total amount of surfactants, that is to say the amount of monoesters of fatty acid and polyethylene glycol and other surfactants possibly present in mixture with these monoesters, is less than 0.5% by weight of active material and preferably less than 0.45% by weight of active material relative to the total weight of the composition, and preferably equal to or less than about 0.2 % by weight of surfactant active material relative to the total weight of the composition.

Since this amount is very small, the emulsion obtained can be considered as a surfactant-free emulsion.

According to the desired objective, the viscosity of the emulsions of the invention may vary to a large extent and in particular from 0.05 Pa · s to 20 Pa · s, preferably from 0.05 to 10 Pa · s, these viscosities being measured at about 25 ° C. by means of the "Rheomat 180" viscometer which is generally equipped with a mobile 2 for the viscosity range of 0.02 Pa · s to 0.7 Pa · s, a mobile 3 for viscosity ranges from 0.2 Pa. s to 4 Pa. s, and a mobile 4 for viscosity ranges from 2 Pa. s to 23 Pa. s. It is thus possible to obtain compositions of varied texture ranging from milk to cream more or less thick.

Monoesters of fatty acid and of polyethylene glycol The fatty acid monoester and of polyethylene glycol used in the composition of the invention preferably has a molecular weight equal to or greater than 450. It may be chosen in particular from among the acid esters fatty composition comprising from 8 to 24 carbon atoms, preferably from 10 to 20 carbon atoms, and from polyethylene glycol comprising from 1 to 200 oxyethylenated groups and better still from 2 to 150 oxyethylenated groups, and mixtures thereof.

The fatty acid monoester and polyethylene glycol may be chosen more particularly from polyethylene glycol laurates, cocoates and stearates containing from 1 to 200 oxyethylenated groups and better still from 2 to 150 oxyethylenated groups, and mixtures thereof. There may be mentioned more particularly monolaurate

<Desc / Clms Page number 4>

 polyethylene glycol comprising 4 oxyethylenated groups (CTFA name: PEG-4 laurate), such as the product sold under the name Lipopeg 2-L by the company LIPO; polyethylene glycol monococoate having 4 oxyethylenated groups (mixture of monolaurate and other monoesters of PEG-4); polyethylene glycol monostearate containing 100 oxyethylenated groups (CTFA name: PEG-100 stearate); polyethylene glycol monostearate containing 50 oxyethylenated groups (CTFA name: PEG-50 stearate); polyethylene glycol cocoate comprising 4 oxyethylenated groups, and mixtures thereof, and the compositions containing them.

The monoesters used according to the invention can be in the form of mixtures with diesters and / or triesters.

propynyl-2 butylcarbamate, PEG-4 laurate, PEG-4 dilaurate et PEG-4. Il s'agit plus particulièrement du mélange vendu par la société Lonza sous la dénomination Glycacil L où les constituants se trouvent dans un rapport 10/40/40/10 : lodo-3 propynyl-2 butylcarbamate : 10 % ; PEG-4 laurate : 40% ; PEG-4 dilaurate : 40 % ; PEG-4 : 10 %. Le fait d'utiliser ce mélange permet à la fois d'assurer une bonne protection bactériologique de la composition et sa stabilité. According to a particular embodiment of the invention, the fatty acid monoester and polyethylene glycol is polyethylene glycol laurate or cocoate containing 4 oxyethylenated groups (PEG-4 laurate). These monoesters may in particular be used in a mixture with 3-iodo-2-propynylbutylcarbamate known as a preservative; it may be more particularly a mixture comprising (in CTFA name) lodo-3

2-propynyl butylcarbamate, PEG-4 laurate, PEG-4 dilaurate and PEG-4. It is more particularly the mixture sold by Lonza under the name Glycacil L where the constituents are in a ratio of 10/40/40/10: 3-lodo-2-propynylbutylcarbamate: 10%; PEG-4 laurate: 40%; PEG-4 dilaurate: 40%; PEG-4: 10%. The fact of using this mixture makes it possible at the same time to ensure good bacteriological protection of the composition and its stability.

Polyethylene glycol monostearate having 100 oxyethylenated groups, as is or in the form of the mixture marketed under the name Arlacel 165 by the company ICI, a mixture comprising glyceryl stearate, is also suitable as monoester of fatty acid and of polyethylene glycol ( CTFA name: glyceryl stearate) and polyethylene glycol monostearate (100 EO) (CTFA name: PEG-100 stearate).

As indicated above, the total amount of surfactant (s) is less than about 0.5% by weight of active ingredient relative to the total weight of the composition. The amount of fatty acid monoester (s) and polyethylene glycol may range, for example, from 0.001 to 0.45% by weight, better still from 0.01 to 0.2% by weight and even more preferably from 0.05 to 0%. , 1% by weight of active material relative to the total weight of the composition.

Polymers comprising at least one ethylenically unsaturated monomer and with a sulphonic group The polymers comprising at least one ethylenically unsaturated monomer and with a sulphonic group, used in accordance with the invention may be homopolymers or copolymers comprising at least one ethylenically unsaturated monomer. and sulfonic group, which can be in free form or partially or completely neutralized. These polymers may optionally comprise at least one hydrophobic part and then constitute an amphiphilic polymer.

<Desc / Clms Page number 5>

 Preferably, the polymers in accordance with the invention may be partially or completely neutralized with a mineral base (sodium hydroxide, potassium hydroxide, aqueous ammonia) or an organic base such as mono-, di- or tri-ethanolamine, an aminomethylpropanediol, N methyl glucamine, basic amino acids such as arginine and lysine, and mixtures of these compounds. They are usually neutralized. In the present invention is meant by neutralized polymers totally or substantially completely neutralized, that is to say neutralized to at least 90%.

The polymers used in the composition of the invention generally have a number-average molecular weight ranging from 1000 to 20,000,000 g / mol, preferably from 20,000 to 5,000,000 and even more preferably from 100,000 to 1,500,000. gimole.

These polymers according to the invention may be crosslinked or non-crosslinked. Preferably, crosslinked polymers are chosen.

The ethylenically unsaturated monomers containing the sulfonic group of the polymer used in the composition of the invention are chosen in particular from vinylsulfonic acid, styrenesulphonic acid, (meth) acrylamido (C1-C22) alkylsulphonic acids, and N-acids. - (C1-C22) alkyl- (meth) acrylamido (C1-C22) alkylsulfonic acid such as undecyl-acrylamido-methanesulfonic acid, as well as their partially or completely neutralized forms, and mixtures thereof.

l'acide 2-méthacrylamido-2-méthylpropane-sulfonique, l'acide 2-acrylamido-nbutane-sulfonique, l'acide 2-acrylamido-2, 4, 4-triméthylpentane-sulfonique, l'acide 2méthacrylamido-dodécyl-sulfonique, l'acide 2-acrylamido-2, 6-diméthyl-3-heptane- sulfonique, ainsi que leurs formes partiellement ou totalement neutralisées, et leurs mélanges. According to one preferred embodiment of the invention, the (meth) acrylamido (C1-C22) alkylsulphonic acids, such as, for example, acrylamidomethanesulfonic acid, acrylamido acid, are used as ethylenically unsaturated monomers and as sulfonic groups. ethanesulfonic acid, acrylamidopropanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid (AMPS),

2-methacrylamido-2-methylpropanesulfonic acid, 2-acrylamido-n-butanesulfonic acid, 2-acrylamido-2,4,4-trimethylpentanesulfonic acid, 2-methacrylamido-dodecylsulphonic acid, 2-acrylamido-2,6-dimethyl-3-heptanesulfonic acid, as well as their partially or completely neutralized forms, and mixtures thereof.

When the polymers are crosslinked, the crosslinking agents may be chosen from compounds having at least two olefinic double bonds, commonly used for the crosslinking of polymers obtained by radical polymerization.

The crosslinking agents may be chosen for example from divinylbenzene, diallyl ether, dipropyleneglycol-diallylether, polyglycoldiallylethers, triethyleneglycol-divinylether, hydroquinone-diallylether, tetraallyloxethanoyl or other allyl or vinylethers. polyfunctional alcohols, ethylene glycol or tetraethylene glycol di (meth) acrylate, triallylamine, trimethylolpropane-diallylether, methylenebisacrylamide, methylene-bis-methacrylamide, triallylcyanurate, diallylmaleate, tetraallylethylenediamine, tetra-allyloxyethane, trimethylolpropane-diallylether, allyl (meth) acrylate, allyl ethers of alcohols of the series of sugars, or other allyl-or vinyl-ethers of polyfunctional alcohols, as well as allylic esters of phosphoric and / or vinylphosphonic acid derivatives, or mixtures of these compounds.

<Desc / Clms Page number 6>

According to a preferred embodiment of the invention, the crosslinking agent is chosen from methylene-bis-acrylamide, allyl methacrylate or trimethylol propane triacrylate (TMPTA).

The degree of crosslinking generally ranges from 0.01 to 10 mol% and more particularly from 0.2 to 2 mol% relative to the polymer.

When the polymers used are homopolymers, they contain only monomers with ethylenic unsaturation and sulfonic group and, if they are crosslinked, one or more crosslinking agents.

The homopolymers that may be used in the composition of the invention are generally crosslinked and neutralized, and they may be obtained according to the preparation process comprising the following steps: (a) the monomer, such as the acid, is dispersed or dissolved; 2-acrylamido-2-methylpropanesulfonic acid in free form in a solution of tert-butanol or water and tert-butanol; (b) the solution or dispersion of monomer obtained in (a) is neutralized with one or more inorganic or organic bases, preferably ammonia NH 3, in an amount making it possible to obtain a degree of neutralization of the sulfonic acid functions of the polymer; ranging from 90 to 100%; (c) adding to the solution or dispersion obtained in (b), the crosslinking monomer (s); (d) conventional radical polymerization is carried out in the presence of free radical initiators at a temperature of 10 to 150 C; the precipitating polymer in the tert-butanol solution or dispersion.

According to one particular embodiment of the invention, the polymer used is chosen from 2-acrylamido-2-methylpropanesulphonic acid (AMPS) polymers as well as its partially or totally neutralized forms. These polymers generally comprise, randomly distributed: a) from 90 to 99.9% by weight of units of general formula (1) below:

<Desc / Clms Page number 7>

 wherein X + is selected from a proton (H +), an alkali metal cation, an alkaline earth metal cation, the ammonium ion and mixtures thereof, at most 10% mole of the X + cations may be H + protons; b) from 0.01 to 10% by weight of crosslinking units from at least one crosslinking monomer having at least two olefinic double bonds; the proportions by weight being defined relative to the total weight of the polymer.

As polymers of this type, mention may be made in particular of crosslinked and neutralized homopolymers of 2-acrylamido-2-methylpropanesulphonic acid, and in particular that marketed by the company Cariant under the trade name Hostacerin AMPS (CTFA name: Ammonium Polyacryldimethyltauramide).

The polymer may also be an amphiphilic homopolymer chosen from AMPS random amphiphilic polymers modified by reaction with a C6-C22 nmonoalkylamine or di-n-alkylamine, such as those described in patent application WO-A-00 / 31154, which are homopolymers grafted.

When the polymers used are copolymers, they are obtained from (1) ethylenically unsaturated monomers and sulfonic groups and (2) other ethylenically unsaturated monomers, that is to say monomers with ethylenic unsaturation. without sulfonic group.

The monomers with ethylenic unsaturation and with a sulfonic group are chosen from those described above.

The ethylenically unsaturated monomers without sulfonic group may be chosen from hydrophilic monomers, hydrophobic monomers and mixtures thereof. When the polymer contains hydrophobic monomers, it constitutes an amphiphilic polymer.

The hydrophilic monomers with ethylenic unsaturation can be chosen for example from (meth) acrylic acids, their ss-substituted alkyl derivatives or their esters obtained with monoalcohols or mono-or poly-alkylene glycols, (meth) acrylamides, vinylpyrrolidone, vinylformamid, maleic anhydride, itaconic acid, maleic acid and mixtures of these compounds.

Copolymers obtained from monomers containing ethylenic unsaturation and with a sulfonic group and hydrophilic monomers containing ethylenic unsaturation include, for example, those obtained from 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and acrylamide. or methylacrylamide, such as, for example, the acrylamide / sodium acrylamido-2-methyl propane sulfonate copolymer in 40% inverse emulsion in polysorbate, sold under the name SIMULGEL 600 by the company SEPPIC. Mention may also be made of copolymers of AMPS and of vinylpyrrolidone or of vinylformamid, such as the products sold under the names ARISTOFLEX AVC by the company CARIANT.

<Desc / Clms Page number 8>

 When the ethylenically unsaturated monomers containing sulphonic groups are copolymerized with ethylenically unsaturated hydrophobic monomers comprising a fatty chain, the polymer obtained is amphiphilic, that is to say that it comprises both a hydrophilic part and a part hydrophobic.

These amphiphilic polymers may also contain one or more ethylenically unsaturated monomers having no fatty chain, such as (meth) acrylic acids, their p-substituted alkyl derivatives or their esters obtained with monoalcohols or mono or polyalkylene glycols. (meth) acrylamides, vinylpyrrolidone, vinylformamide, maleic anhydride, itaconic acid, maleic acid and mixtures of these compounds.

As amphiphilic polymers, use may especially be made of those obtained from AMPS and at least one hydrophobic ethylenically unsaturated monomer comprising at least one hydrophobic part having from 6 to 50 carbon atoms, more preferably from 6 to 22 carbon atoms. more preferably 6 to 18 carbon atoms and more particularly 12 to 18 carbon atoms.

These copolymers are described in particular in the patent application EP-A-750899, US-A-5,089,578 and in the following Yotaro Morishima publications: Self-assembly amphiphilic polyelectrolytes and their nanostructures Chinese Journal of Polymer Science Vol . 18, N040, (2000), 323-336; - Miscellanous formation of random copolymers of 2- (acrylamido) -2-methylpropanesulfonate and a non-ionic surfactant macromonomer in water as studied by fluorescence and dynamic light scattering-Macromolecules 2000, Vol.

33, 10-3694-3704; Solution properties of micelle networks formed by non-ionic moieties covalently bound to a polyelectrolyte: salt effects on rheological behavior-Langmuir, 2000, Viol. 16, N'12, 5324-5332 Stimuli responsive amphiphilic copolymers of sodium 2- (acrylamido) -2-methylpropanesulfonate and associative macromonomers-Polym. Preprint, Div.

Polym. Chem. 1999, 40 (2), 220-221.

The hydrophobic monomers with ethylenic unsaturation of these particular copolymers are preferably chosen from the acrylates, alkyl acrylates, acrylamides or alkyl acrylamides of formula (II) below:

<Desc / Clms Page number 9>

 in which R1 and R3, which are identical or different, denote a hydrogen atom or a linear or branched C1-C6 alkyl radical (preferably methyl); Y is 0 or NH; R2 denotes a hydrophobic hydrocarbon radical containing at least 6 to 50 carbon atoms, more preferably 6 to 22 carbon atoms, even more preferably 6 to 18 carbon atoms and more particularly 12 to 18 carbon atoms; x denotes a number of moles of alkylene oxide and ranges from 0 to 100.

dodécyle, n-hexadecyle ou n-octadécyle. Selon une forme particulièrement préférée de l'invention, le monomère de formule (II) comporte au moins un motif oxyde d'alkylène (x=1) et de préférence plusieurs motifs oxyde d'alkylène (x > 1) constituant une chaîne polyoxyalkylénée. La chaîne polyoxyalkylénée, de façon préférentielle, est constituée de motifs oxyde d'éthylène et/ou de motifs oxyde de propylène et encore plus particulièrement constituée de motifs oxyde d'éthylène. Le nombre de motifs oxyalkylénés (ou nombre de moles d'oxyde d'alkylène) varie en général de 3 à 100, plus préférentiellement de 3 à 50 et encore plus préférentiellement de 7 à 25. The radical R 2 is preferably chosen from linear (e.g. n-hexyl, n-octyl, n-decyl, n-hexadecyl, n-dodecyl, n-octadecyl) branched or cyclic (e.g. cyclododecane) alkyl radicals. (con) or adamantane (Cio)); C 6 -C 18 alkyl perfluorinated radicals (for example, the group of the formula - (CH 2 h- (CF 2) 9-CF 3), the cholesteryl radical (C 27) or a cholesteryl ester residue such as the cholesteryl oxyhexanoate group; aromatic radicals such as naphthalene or pyrene, among these radicals linear alkyl radicals, and more particularly the n-radical, are more particularly preferred.

dodecyl, n-hexadecyl or n-octadecyl. According to a particularly preferred form of the invention, the monomer of formula (II) comprises at least one alkylene oxide unit (x = 1) and preferably several alkylene oxide units (x> 1) constituting a polyoxyalkylene chain. The polyoxyalkylene chain is preferably composed of ethylene oxide units and / or propylene oxide units and even more particularly ethylene oxide units. The number of oxyalkylenated units (or number of moles of alkylene oxide) generally varies from 3 to 100, more preferably from 3 to 50 and even more preferably from 7 to 25.

Among these polymers, mention may be made of: - crosslinked or non-crosslinked copolymers, neutralized or not, comprising from 15 to 60% by weight of 2-acrylamido-2-methylpropanesulfonic acid (AMPS) units and from 40 to 85% by weight; weight of (Ca-C16) alkyl (meth) acrylamide units or (Ca-C16) alkyl (meth) acrylate units relative to the polymer, such as those described in EP-A-750 899; terpolymers comprising from 10 to 90 mol% of acrylamide units, from 0.1 to 10 mol% of 2-acrylamido-2-methylpropanesulfonic acid (AMPS) units and from 5 to 80 mol% of neat units; -Catkytacrytamide, relative to the polymer, such as those described in US-A-5,089,578.

Mention may also be made of copolymers of 2-acrylamido-2-methylpropanesulfonic acid and of n-dodecyl, n-hexadecyl and / or noctadecyl methacrylate, as well as copolymers of 2-acrylamido-2-methylpropane acid. and partially or completely neutralized and cross-linked or non-crosslinked sulphonic and n-dodecylmethacrylamide, such as those described in the articles of Morishima cited above.

Mention may be made more particularly of the copolymers consisting of AMPS units of formula (1) indicated above, and of units of formula (III) below:

<Desc / Clms Page number 10>

dans laquelle x désigne un nombre entier variant de 3 à 100, de préférence de 5 à 80 et plus préférentiellement de 7 à 25 ; Ri a la même signification que celle indiquée ci-dessus dans la formule (II) et R4 désigne un alkyle linéaire ou ramifié en C6-C22 et plus préférentiellement en C1O-C22.

in which x denotes an integer ranging from 3 to 100, preferably from 5 to 80 and more preferably from 7 to 25; R 1 has the same meaning as that indicated above in formula (II) and R 4 denotes a linear or branched C 6 -C 22 and more preferably C 10 -C 22 alkyl.

Particularly preferred amphiphilic polymers of this type are those for which x = 25, R 1 denotes methyl and R 4 represents n-dodecyl; they are described in the articles of Morishima mentioned above. Other preferred polymers are those wherein x = 25, R 1 denotes methyl and R 4 represents n-hexadecyl (C 16), n-octadecyl (C, 8), n-dodecyl (C 12) or mixtures thereof.

The polymers for which X + denotes sodium or ammonium are more particularly preferred.

l'azobisisobutyronitrile (AIBN), l'azobisdiméthylvaléronitrile, le chlorhydrate de 2, 2azobis-[2-amidinopropane] (ABAH = 2, 2-Azo-Bis-[2-Amidinopropane] Hydrochloride), les peroxydes organiques tels que le peroxyde de dilauryle, le peroxyde de benzoyle, l'hydroperoxyde de tert-butyle, etc..., des composés peroxydés minéraux tels que le persulfate de potassium ou d'ammonium, ou H202 éventuellement en présence de réducteurs. The preferred amphiphilic polymers used in the composition according to the invention can be obtained according to the conventional methods of radical polymerization in the presence of one or more initiators such as, for example,

azobisisobutyronitrile (AIBN), azobisdimethylvaleronitrile, 2, 2azobis [2-amidinopropane] hydrochloride (ABAH = 2,2-Azo-Bis- [2-Amidinopropane] Hydrochloride), organic peroxides such as dilauryl, benzoyl peroxide, tert-butyl hydroperoxide, etc ..., inorganic peroxidized compounds such as potassium persulphate or ammonium, or H 2 O 2 optionally in the presence of reducing agents.

These amphiphilic polymers may in particular be obtained by radical polymerization in tert-butanol medium in which they precipitate. By using precipitation polymerization in tert-butanol, it is possible to obtain a particle size distribution of the polymer which is particularly favorable for its uses.

The particle size distribution of the polymer can be determined, for example, by laser diffraction or image analysis. An interesting distribution for polymer type and determined by image analysis is as follows: 60.2% less than 423 microns, 52.0% less than 212 microns, 26.6% less than 106 microns, 2.6% less than 45 microns and 26.6% greater than 850 microns.

The reaction may be conducted at a temperature between 0 and 150 C, preferably between 10 and 100 C, either at atmospheric pressure or under reduced pressure. It can also be carried out under an inert atmosphere, and preferably under nitrogen.

<Desc / Clms Page number 11>

T-080 de la société CARIANT), - d'un atcoot en Cie-Cis oxyéthyténé par 15 moles d'oxyde d'éthylène (GENAPOLO T-150 de la société CLARIANT), - d'un alcool en C16-C18 oxyéthyléné par 11 moles d'oxyde d'éthylène (GENAPOL# T-110 de la société CLARIANT),

- d'un atcoot en Cie-Cis oxyéthyténé par 20 moles d'oxyde d'éthylène (GENAPOLO T-200 de la société CLARIANT), - d'un alcool en Cie-Cis oxyéthyténé par 25 moles d'oxyde d'éthylène (GENAPOL# T-250 de la société CLARIANT), - d'un alcool en C18-C22 oxyéthyléné par 25 moles d'oxyde d'éthylène et/ou d'un alcool iso-C16-C18 oxyéthyléné par 25 moles d'oxyde d'éthylène. According to this process, 2-acrylamido-2-methylpropanesulfonic acid (AMPS) or one of its sodium or ammonium salts, with a (meth) acrylic acid ester, has been polymerized in particular. a C10-C18 alcohol oxyethylenated with 8 moles of ethylene oxide (GENAPOLO C-080 from CLARIANT), - a C11 oxo alcohol oxyethylenated with 8 moles of ethylene oxide (GENAPOL # UD- 080 from the company CLARIANT), - a C10 oxo alcohol oxyethylenated with 7 moles of ethylene oxide (GENAPOL # UD-070 from the company CLARIANT), - a C12-C14 alcohol oxyethylenated by 7 moles ethylene oxide (GENAPOLO LA-070 from the company CLARIANT), - a C12-C14 alcohol oxyethylenated with 9 moles of ethylene oxide (GENAPOL # LA-090 from CLARIANT), - a C12-C14 alcohol oxyethylenated with 11 moles of ethylene oxide (GENAPOL # LA-110 from the company CLARIANT), - a C6-C18 alcohol oxyethylated by 8 moles of ethylene oxide (Genapol #

T-080 from the company CARIANT), - an atcoot in Cie-Cis oxyethylenated with 15 moles of ethylene oxide (GENAPOLO T-150 CLARIANT company), - a C16-C18 alcohol oxyethylenated by 11 moles of ethylene oxide (GENAPOL # T-110 from CLARIANT),

an α-Cis atcoot oxyethylenated with 20 moles of ethylene oxide (GENAPOLO T-200 from the company CLARIANT), a C₁-C alcool alcohol oxyethylenated with 25 moles of ethylene oxide ( GENAPOL # T-250 from the company CLARIANT), - a C18-C22 alcohol oxyethylenated with 25 moles of ethylene oxide and / or an iso-C16-C18 alcohol oxyethylenated with 25 moles of aluminum oxide; 'ethylene.

The molar concentration in% of the units of formula (1) and units of formula (III) in the polymers according to the invention varies according to the desired cosmetic application and the rheological properties of the formulation sought. It can vary between 0.1 and 99.9 mol%.

Preferably for the most hydrophobic polymers, the molar proportion in units of formula (1) or (III) ranges from 50.1 to 99.9%, more particularly from 70 to 95% and even more particularly from 80 to 90%. .

Preferably for the low hydrophobic polymers, the molar proportion in units of formula (1) or (III) ranges from 0.1 to 50%, more particularly from 5 to 25% and even more particularly from 10 to 20%.

The distribution of the monomers in the polymers of the invention may be, for example, alternating, block (including multiblock) or any.

According to a preferred embodiment of the invention, the polymer comprising at least one ethylenically unsaturated monomer and sulfonic group, used in the present invention is a homopolymer and in particular the product sold under the name Hostacerin AMPS.

<Desc / Clms Page number 12>

The amount of polymer (s) comprising at least one ethylenically unsaturated monomer and with a sulphonic group used in the composition of the invention is preferably from 0.1 to 10% by weight of active material, more preferably from 0 to 10% by weight. , 2 to 5% by weight and more preferably from 0.5 to 3% by weight relative to the total weight of the composition.

1 Comme acide aminé pouvant être contenu dans la composition de l'invention, on peut citer par exemple l'acide glutamique, l'acide aspartique, l'arginine, la glycine, l'alanine, la valine, la leucine, l'isoleucine, la sérine, la thréonine, la proline, la cystéine, l'hydroxyproline, la ss-alanine, l'acide aminobutyrique, l'acide aminocaproique, la sarcosine, la N-méthyl-fl-alanine, la méthionine, la tyrosine, la phénylalanine, la lysine, l'histidine, le tryptophane, et leurs mélanges, ainsi que tout actif contenant un ou plusieurs de ces acides aminés. Additives According to a preferred embodiment of the invention, the composition contains at least one amino acid or at least one active agent containing at least one amino acid.

As amino acid which may be contained in the composition of the invention, mention may be made, for example, of glutamic acid, aspartic acid, arginine, glycine, alanine, valine, leucine and isoleucine. serine, threonine, proline, cysteine, hydroxyproline, ss-alanine, aminobutyric acid, aminocaproic acid, sarcosine, N-methyl-fl-alanine, methionine, tyrosine, phenylalanine, lysine, histidine, tryptophan, and mixtures thereof, as well as any active ingredient containing one or more of these amino acids.

actif est composé de 7, 5 % de protéine native de graine d'Hibiscus esculentus L., les acides aminés majoritaires étant les suivants :

In particular, it is possible to use, as amino acid, an extract of vegetable origin, in particular a hibiscus extract, and more especially extracts of Hibiscus esculentus L. belonging to the family Malvaceae, such as the extract marketed under the name Hibiscin. HP LS 9198 by the Laboratoires Sérobiologiques. This

active is composed of 7.5% of native Hibiscus esculentus L. seed protein, the majority amino acids being as follows:

<Tb>
<tb> e <SEP><SEP> Glutamic acid <SEP> 19, <SEP> 15 <SEP>%
<tb> e <SEP><SEP> Aspartic acid <SEP> 10, <SEP> 89 <SEP>%
<tb> e <SEP> Arginine <SEP> 10, <SEP> 02 <SEP>%
<tb> Glycine <SEP> 7, <SEP> 77%
<Tb>

La quantité d'acide (s) aminé (s) dans la composition de l'invention peut varier dans une large mesure selon le but de l'invention. Elle peut aller par exemple de 0,001 à 15 % en poids, de préférence de 0,002 à 10 % en poids, mieux de 0,005 à 5 % en poids et encore mieux de 0,01 à 2 % en poids de matière active par rapport au poids total de la composition.

The amount of amino acid (s) in the composition of the invention may vary to a large extent depending on the purpose of the invention. It may range, for example, from 0.001 to 15% by weight, preferably from 0.002 to 10% by weight, better still from 0.005 to 5% by weight and even more preferably from 0.01 to 2% by weight of active ingredient relative to the weight. total of the composition.

The oily phase of the composition according to the invention generally represents from 1 to 80% and preferably from 10 to 60% by weight relative to the total weight of the composition.

For the preparation of very fluid emulsions, the amount of oily phase is preferably from 1 to 30% and better still from 10 to 25% by weight relative to the total weight of the composition, and for obtaining oil-rich compositions. the amount of oily phase is preferably greater than 40% and generally ranges from 40 to 80% and more preferably from 50 to 60% by weight relative to the total weight of the composition.

The nature of the oily phase of the emulsion according to the invention is not critical. The oily phase may thus consist of all the fatty substances and in particular the

<Desc / Clms Page number 13>

 oils, conventionally used in the cosmetic or dermatological fields.

Generally, the oily phase comprises at least one oil.

d'isopropyle, le palmitate d'éthyl-2-hexyle, le stéarate d'octyl-2-dodécyle, l'érucate d'octyl-2-dodécyle, l'isostéarate d'isostéaryle ; les esters hydroxylés comme l'isostéaryl lactate, l'octyl hyd roxystéa rate, l'hyd roxystéa rate d'octyldodécyle, le diisostéaryl-malate, le citrate de triisocétyle, les heptanoates, octanoates, décanoates d'alcools gras ; les esters de polyol, comme le dioctanoate de propylène glycol, le diheptanoate de néopentylglycol et le diisononanoate de diéthylèneglycol ; et les esters du pentaérythritol comme le tétraisostéarate de pentaérythrityle ; - les hydrocarbures linéaires ou ramifiés, d'origine minérale ou synthétique, tels que les huiles de paraffine, volatiles ou non, et leurs dérivés, la vaseline, les

polydécènes, le polyisobutène hydrogéné tel que l'huile de Partéam&commat; ; - les alcools gras ayant de 8 à 26 atomes de carbone, comme l'alcool cétylique, l'alcool stéarylique et leur mélange (alcool cétylstéarylique), l'octyldodécanol, le 2butyloctanol, le 2-hexyldécanol, le 2-undécylpentadécanol, l'alcool oléique ou l'alcool linoléique ;

- les alcools gras alcoxylés et notamment éthoxylés tels que l'oleth-12, le ceteareth- 12 et le ceteareth-20 ; - les huiles fluorées partiellement hydrocarbonées et/ou siliconées comme celles décrites dans le document JP-A-2-295912. Comme huiles fluorées, on peut citer aussi le perfluorométhylcyclopentane et le perfluoro-1, 3 diméthylcyclohexane, vendus sous les dénominations de"FLUTEC PC1"et"FLUTEC PC3'par ta Société BNFL Fluorochemicals ; le perfluoro-1, 2-diméthylcyclobutane ; les

perfluoroalcanes tels que le dodécafluoropentane et le tétradécafluorohexane, vendus sous les dénominations de"PF 5050"et"PF 5060"par ta Société 3M, ou encore le bromoperfluorooctyle vendu sous la dénomination"FORALKYL"par la Société Atochem ; le nonafluorométhoxybutane vendu sous la dénomination"MSX 4518&commat;"par la Société 3M et le nonafluoroéthoxyisobutane ; les dérivés de

perfluoromorpholine, tels que la 4-trifluorométhyl perfluoromorpholine vendue sous la dénomination "PF 5052'par la Société 3M ; As oils that can be used in the composition of the invention, mention may be made, for example, of: hydrocarbon-based oils of animal origin, such as perhydrosqualene; hydrocarbon-based oils of vegetable origin, such as liquid triglycerides of fatty acids containing from 4 to 10 carbon atoms, for instance triglycerides of heptanoic or octanoic acids or, for example, sunflower, corn or soybean oils, squash, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor oil, avocado, triglycerides of caprylic / capric acids such as those sold by Stearineries Dubois or those sold under the names Miglyol 810,812 and 818 by the company Dynamit Nobel, jojoba oil, shea butter oil; cococaprylate / caprate (esters of Cs-Cio acid and of C12-C1S fatty alcohol (CETIOL LC sold by the company Cognis); esters and synthetic ethers, in particular of fatty acids, such as formula oils RaCOORb and RaORb in which Ra represents the residue of a fatty acid having from 8 to 29 carbon atoms, and Rb represents a hydrocarbon chain, branched or unbranched, containing from 3 to 30 carbon atoms, for example the oil of Purcellin, isononyl isononanoate, myristate

isopropyl, 2-ethylhexyl palmitate, octyl-2-dodecyl stearate, octyl-2-dodecyl erucate, isostearyl isostearate; hydroxylated esters such as isostearyl lactate, octyl hydrazystearate, octyldodecyl hyd roxystearate, diisostearyl malate, triisocetyl citrate, heptanoates, octanoates, decanoates of fatty alcohols; polyol esters, such as propylene glycol dioctanoate, neopentyl glycol diheptanoate and diethylene glycol diisononanoate; and pentaerythritol esters such as pentaerythrityl tetraisostearate; linear or branched hydrocarbons of mineral or synthetic origin, such as paraffin oils, volatile or not, and their derivatives, petroleum jelly,

polydecenes, hydrogenated polyisobutene such as Parteaman oil; ; fatty alcohols having from 8 to 26 carbon atoms, such as cetyl alcohol, stearyl alcohol and their mixture (cetylstearyl alcohol), octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleic alcohol or linoleic alcohol;

alkoxylated and especially ethoxylated fatty alcohols such as oleth-12, ceteareth-12 and ceteareth-20; partially fluorinated hydrocarbon oils and / or silicone oils such as those described in document JP-A-2-295912. Fluorinated oils which may also be mentioned are perfluoromethylcyclopentane and perfluoro-1,3-dimethylcyclohexane, sold under the names FLUTEC PC1 and FLUTEC PC3 by the company BNFL Fluorochemicals; perfluoro-1,2-dimethylcyclobutane;

perfluoroalkanes such as dodecafluoropentane and tetradecafluorohexane, sold under the names "PF 5050" and "PF 5060" by the 3M Company, or bromoperfluorooctyl sold under the name "Foralkyl" by Atochem; nonafluoromethoxybutane sold under the name "MSX 4518 &commat;" by the company 3M and nonafluoroethoxyisobutane; derivatives of

perfluoromorpholine, such as 4-trifluoromethyl perfluoromorpholine sold under the name "PF 5052" by the company 3M;

<Desc / Clms Page number 14>

phényltriméthicones, les phényldiméthicones, les phényltriméthylsiloxydiphénylsiloxanes, les d iph ényl-diméth icones, les diphénylméthyldiphényl trisiloxanes, les 2- phényléthyltriméthyl-siloxysilicates, et les polyméthylphénylsiloxanes ; - leurs mélanges. silicone oils such as volatile or non-volatile polymethylsiloxanes (PDMS) with a linear or cyclic silicone chain, which are liquid or pasty at room temperature, in particular cyclopolydimethylsiloxanes (cyclomethicones) such as cyclohexasiloxane; polydimethylsiloxanes comprising alkyl, alkoxy or phenyl groups, during or at the end of the silicone chain, groups having from 2 to 24 carbon atoms; phenyl silicones such as

phenyltrimethicones, phenyldimethicones, phenyltrimethylsiloxydiphenylsiloxanes, diphenyl dimethones, diphenylmethyldiphenyl trisiloxanes, 2-phenylethyl trimethylsiloxysilicates, and polymethylphenylsiloxanes; - their mixtures.

By hydrocarbon oil is meant in the list of oils mentioned above, any oil predominantly comprising carbon and hydrogen atoms, and optionally ester, ether, fluoro, carboxylic acid and / or alcohol groups.

KSG18 de Shin-Etsu, Gransil SR 5CYC gel, Gransil SR DMF 10 gel, Gransil SR DC 556 gel, SF 1204 et JK 113 de General Electric. The other fatty substances that may be present in the oily phase are, for example, fatty acids containing from 8 to 30 carbon atoms, such as stearic acid, lauric acid, palmitic acid and oleic acid; waxes such as lanolin, beeswax, carnauba or candelilla wax, paraffin waxes, lignite waxes or microcrystalline waxes, ceresin or ozokerite, synthetic waxes such as polyethylene waxes, waxes Fischer-Tropsch; vaseline paste; gums such as silicone gums (dimethiconol); silicone resins such as trifluoromethyl-C1-4-alkyldimethicone and trifluoropropyldimethicone; crosslinked elastomeric organopolysiloxanes such as those sold under the names KSG6 of Shin-Etsu, Trefil E-505C or Trefil E-506C from Dow-Corning, Gransil from Grant Industries (SR-CYC, SR DMF10, SRDC556), or those marketed under form of gels: KSG15, KSG17, KSG16,

KSG18 from Shin-Etsu, Gransil SR 5CYC gel, Gransil SR DMF 10 gel, Gransil SR DC 556 gel, SF 1204 and JK 113 from General Electric.

These fatty substances may be chosen in a varied manner by those skilled in the art in order to prepare a composition having the desired properties, for example of consistency or texture.

According to a particular embodiment of the invention, the composition of the invention contains at least one silicone oil, preferably a volatile silicone oil which may be chosen for example from cyclic or linear polydimethylsiloxanes, and mixtures thereof. The cyclic polydimethylsiloxanes or cyclomethicones comprise from about 3 to 9 silicon atoms, and preferably from 4 to 6 silicon atoms, and may be, for example, cyclohexadimethylsiloxane and cyclopentadimethylsiloxane. The volatile linear polydimethylsiloxanes preferably comprise from about 3 to 9 silicon atoms. Volatile linear polydimethylsiloxanes generally have a viscosity at 25 C of less than or equal to 5 cSt while cyclomethicones generally have a viscosity at 250C of less than or equal to 10 cSt.

The composition according to the invention generally comprises an amount of aqueous phase ranging from 20 to 99% by weight and preferably from 40 to 90% by weight relative to the total weight of the composition. The aqueous phase comprises water and

<Desc / Clms Page number 15>

 any other water-soluble compound that may be present, such as, in particular, solvents and water-soluble active agents.

As water-soluble solvents, mention may be made in particular of lower alcohols and polyols. Lower alcohol is understood to mean alcohols containing from 1 to 8 and more particularly from 1 to 6 carbon atoms, such as ethanol, propanol, butanol, isopropanol and isobutanol. Examples of polyols that may be mentioned include glycerin, propylene glycol, isoprene glycol, butylene glycol, sorbitol and polyethylene glycols, especially those having from 6 to 80 ethylene oxides. These alcohols and / or polyols may be present in the composition in an amount ranging preferably from 0.1 to 25% and from 1 to 15% of the total weight of the composition.

In known manner, the compositions of the invention may contain adjuvants customary in the fields under consideration, such as hydrophilic or lipophilic active agents, preservatives, antioxidants, perfumes, solvents, fillers (kaolin), filters, dyestuffs, basic agents (triethanolamine, soda) or acids and further lipid vesicles. These adjuvants are used in the usual proportions in the cosmetics field, and for example from 0.01 to 30% of the total weight of the emulsion, and they are, according to their nature, introduced into the aqueous phase or the oily phase of the emulsion, or in vesicles. These adjuvants and their concentrations must be such that they do not modify the property desired for the emulsion of the invention. glycol.

(acide ascorbique), la vitamine B5 (panthénol), la vitamine B3 (niacinamide), les dérivés de ces vitamines (notamment esters) et leurs mélanges ; l'urée ; la caféine ; les dépigmentants tels que l'acide kojique, l'hydroquinone et l'acide caféique ; l'acide salicylique et ses dérivés ; les alpha-hydroxyacides tels que l'acide lactique et l'acide glycolique et leurs dérivés ; les rétinoïdes tels que les caroténoïdes et les dérivés de vitamine A ; les filtres solaires ; t'hydrocortisone ; ta métatonine ; tes extraits d'algues, de champignons, de végétaux, de levures, de bactéries ; les enzymes ; les stéroïdes ; les actifs anti-bactériens comme le 2,4, 4'-trichloro-2'hydroxy diphényl éther (ou triclosan), le 3,4, 4'-trichlorocarbanilide (ou triclocarban) et les acides indiqués ci-dessus et notamment l'acide salicylique et ses dérivés ; les agents matifiants comme les fibres ; les agents tenseurs ; leurs mélanges ; et tout actif approprié pour le but final de la composition. As active agents that may be used in the composition of the invention, mention may be made, for example, of the hydrating agents, such as protein hydrolysates, in addition to the amino and active acids containing them; sodium hyaluronate; polyols such as glycerine, glycols such as polyethylene glycols, and sugar derivatives; anti-inflammatories; procyannidol oligomers; vitamins such as vitamin A (retinol), vitamin E (tocopherol), vitamin C

(ascorbic acid), vitamin B5 (panthenol), vitamin B3 (niacinamide), derivatives of these vitamins (especially esters) and mixtures thereof; urea; caffeine; depigmenting agents such as kojic acid, hydroquinone and caffeic acid; salicylic acid and its derivatives; alpha-hydroxy acids such as lactic acid and glycolic acid and their derivatives; retinoids such as carotenoids and vitamin A derivatives; solar filters; hydrocortisone; metatonin; your extracts of algae, mushrooms, vegetables, yeasts, bacteria; enzymes; steroids; anti-bacterial active agents such as 2,4,4'-trichloro-2-hydroxy-diphenyl ether (or triclosan), 3,4,4'-trichlorocarbanilide (or triclocarban) and the acids indicated above, and especially the salicylic acid and its derivatives; mattifying agents such as fibers; tensors; their mixtures; and any suitable asset for the ultimate purpose of the composition.

As examples of steroids, mention may be made of dehydroepiandrosterone (or DHEA), as well as (1) its precursors and biological derivatives, in particular salts and esters of DHEA, such as DHEA sulfate and salicylate, 7-hydroxy-DHEA. 7-keto-DHEA, 7-hydroxy and 7-keto-DHEA esters, in particular 3-betaacetoxy-7-oxo-DHEA, and (2) its precursors and chemical derivatives, in particular sapogenins such as diosgenin or hecogenin, and / or their derivatives, such as

<Desc / Clms Page number 16>

 hecogenin acetate, and / or natural extracts containing it and in particular extracts of Dioscoreae, such as wild yam (Wild Yam).

According to a particular embodiment of the invention, the composition also contains at least one filter. As filters, one can use in the composition of the invention, organic U.V. filters or physical filters. The filter or filters may be present in an amount ranging from 0.1 to 25% by weight of active material, preferably from 1 to 20% by weight, and better still from 5 to 15% by weight relative to the total weight of the composition. .

Dérivés de l'acide para-aminobenzoique (PABA) : - PABA, - Ethyl PABA, - Ethyl Dihydroxypropyl PABA, - Ethylhexyl Diméthyl PABA vendu notamment sous le nom commercial ESCALOL
507 par ISP, - Glyceryl PABA, - PEG-25 PABA vendu sous le nom commercial UVINUL P25 par BASF, Dérivés salicyliques : - Homosalate vendu sous le nom commercial EUSOLEX HMS par RONA/EM
INDUSTRIES, - Ethylhexyl Salicylate (ou salicylate d'éthyl hexyle) vendu sous le nom commercial
NEO HELIOPAN OS par HAARMANN et REIMER, - Dipropyleneglycol Salicylate vendu sous le nom commercial DIPSAL par
SCHER, - TEA Salicylate, vendu sous le nom commercial NEO HELIOPAN TS par
HAARMANN et REIMER, Dérivés du dibenzoylméthane : - Butyl Methoxydibenzoylmethane vendu notamment sous le nom commercial
PARSOL 1789 par HOFFMANN LA ROCHE, - Isopropyl Dibenzoylmethane, Dérivés cinnamiques : - Ethylhexyl Methoxycinnamate (ou Octyl Methoxycinnamate) vendu notamment sous le nom commercial PARSOL MCX par HOFFMANN. LA ROCHE, - Isopropyl Methoxycinnamate, - Isoamyl Methoxycinnamate vendu sous le nom commercial NEO HELIOPAN E
1000 par HAARMANN et REIMER, - Cinoxate, - DEA Methoxycinnamate, - Diisopropyl Methylcinnamate,

- Glyceryl Ethylhexanoate Dimethoxycinnamate Dérivés de ss, ?'-d/p/ ? ény/acr/afe ; Examples of organic screening agents active in the UV-A and / or UV-B range that may be used in the composition of the invention include, for example, designated above under their CTFA name:

Derivatives of para-aminobenzoic acid (PABA): PABA, Ethyl PABA, Ethyl Dihydroxypropyl PABA, Ethylhexyl Dimethyl PABA sold in particular under the trade name ESCALOL
507 by ISP, - Glyceryl PABA, - PEG-25 PABA sold under the trade name Uvinul P25 by BASF, Salicylic derivatives: Homosalate sold under the trade name EUSOLEX HMS by RONA / EM
INDUSTRIES, - Ethylhexyl Salicylate (or ethyl hexyl salicylate) sold under the trade name
NEO HELIOPAN OS by HAARMANN and REIMER, - Dipropylene glycol salicylate sold under the trade name DIPSAL by
SCHER, - TEA Salicylate, sold under the trade name NEO HELIOPAN TS by
HAARMANN and REIMER, Derivatives of dibenzoylmethane: butyl methoxydibenzoylmethane sold in particular under the trade name
PARSOL 1789 by HOFFMANN LA ROCHE, - Isopropyl Dibenzoylmethane, cinnamic derivatives: - Ethylhexyl Methoxycinnamate (or Octyl Methoxycinnamate) sold in particular under the trade name PARSOL MCX by HOFFMANN. LA ROCHE, - Isopropyl Methoxycinnamate, - Isoamyl Methoxycinnamate sold under the trade name NEO HELIOPAN E
1000 by HAARMANN and REIMER, - Cinoxate, - DEA Methoxycinnamate, - Diisopropyl Methylcinnamate,

- Glyceryl Ethylhexanoate Dimethoxycinnamate Derivatives of ss,? '- d / p /? eny / acr / afe;

<Desc / Clms Page number 17>

- Octocrylene (α-cyano-ss, ss-2-ethylhexyl diphenylacrylate) sold in particular under the trade name UVINUL N539 by BASF, - Etocrylene, sold in particular under the trade name UVINUL N35 by BASF, Derivatives of benzophenone: - Benzophenone- 1 sold under the trade name UVINUL 400 by BASF, -Benzophenone-2 sold under the trade name UVINUL D50 by BASF-Benzophenone-3 or Oxybenzone, sold under the trade name Uvinul M40 by BASF, -Benzophenone-4 sold under the trade name UVINUL MS40 by BASF, - Benzophenone-5, - Benzophenone-6 sold under the trade name HELISORB 11 by NORQUAY, - Benzophenone-8 sold under the trade name SPECTRA-SORB UV-24 by
AMERICAN CYANAMID, Benzophenone-9 sold under the trade name UVINUL OS-49 by BASF, Benzophenone-12, Derivatives of benzylidene camphor: 3-Benzylidene camphor manufactured under the name MEXORYL SD by CHIMEX, 4-Methylbenzylidene camphor sold under the trade name EUSOLEX 6300 by MERCK, - Benzylidene Camphor Sulfonic Acid manufactured under the name MEXORYL SL by
CHIMEX, - Camphor Benzalkonium Methosulfate manufactured under the name MEXORYL SO by
CHIMEX, - Terephthalylidene Dicamphor Sulfonic Acid manufactured under the name MEXORYL SX by CHIMEX, - Polyacrylamidomethyl Benzylidene Camphor manufactured under the name MESORYL
SW by CHIMEX, Derivatives of phenyl benzimidazole: - Phenylbenzimidazole Sulfonic Acid sold in particular under the trade name
EUSOLEX 232 by MERCK, Benzimidazilate sold under the trade name NEO HELIOPAN AP by HAARMANN and REIMER, derivatives of triazine: Anisotriazine sold under the trade name Tinosorb S by CIBA GEIGY, Ethylhexyl triazone sold in particular under the trade name UVINUL T150 by BASF, - Diethylhexyl Butamido Triazone sold under the trade name UVASORB HEB by SIGMA 3V, Derivatives of phenyl benzotriazole: - Drometrizole Trisiloxane sold under the trade name SILATRIZOLE by
RHODIA CHEMISTRY,

<Desc / Clms Page number 18>

Anthranilic Derivatives: Menthyl anthranilate sold under the trade name NEO HELIOPAN MA by
HAARMANN and REIMER, Imidazoline derivatives: Ethylhexyl Dimethoxybenzylidene Dioxoimidazoline Propionate, Derivatives of benzalmalonate: Polyorganosiloxane containing benzalmalonate functions sold under the trade name PARSOL SLX by HOFFMANN LA ROCHE and their mixtures.

The more particularly preferred organic UV filters are chosen from the following compounds: Ethylhexyl salicylate, Butyl Methoxydibenzoylmethane, Ethylhexyl Methoxycinnamate, Octocrylene, Phenylbenzimidazole Sulfonic Acid (phenylbenzimidazole sulfonic acid), Terephthalylidene Dicamphor Sulfonic (terephthalylidene dicamphosulphonic acid).

- Methylene bis-Benzotriazolyl Tetramethylbutylphenol (méthylène bis- benzotriazolyl tétraméthylbutylphenol), - Drometrizole Trisiloxane, - et leurs mélanges. Benzophenone-3, Benzophenone-4, Benzophenone-5, 4-Methylbenzylidene camphor (4-methylbenzylidene camphor), Benzimidazilate, Anisotriazine, Ethylhexyl triazone, Diethylhexylbutamido triazone,

Methylene bis-benzotriazolyl tetramethylbutylphenol (methylene bis-benzotriazolyl tetramethylbutylphenol), Drometrizole trisiloxane, and mixtures thereof.

- l'alumine et le stéarate d'aluminium, tels que le produit commercialisé sous la dénomination Microtitanium Dioxide MT 100 T par la société TAYCA, - l'alumine et le laurate d'aluminium, tels que le produit commercialisé sous la dénomination Microtitanium Dioxide MT 100 S par la société TAYCA, As physical filters which may be added in the composition of the invention, mention may be made, for example, of pigments and nano-pigments of metal oxides, coated or uncoated, in particular the oxides of titanium, iron, zirconium, zinc or cerium, and mixtures thereof, these oxides may be in the form of micro-or nanoparticles (nanopigments), optionally coated. The treated nanopigments may more particularly be titanium oxides treated with: silica and alumina, such as the products sold under the names Microtitanium Dioxide MT 500 SA and Microtitanium Dioxide MT 100 SA by the company Tayca, and the products marketed under the names Tioveil Fin, Tioveil OP, Tioveil MOTG and Tioveil IPM by the company TIOXIDE,

aluminum alumina and stearate, such as the product marketed under the name Microtitanium Dioxide MT 100 T by Tayca; aluminum alumina and laurate, such as the product marketed under the name Microtitanium Dioxide; MT 100 S by the company TAYCA,

<Desc / Clms Page number 19>

 iron oxides and iron stearate, such as the product marketed under the name Microtitanium Dioxide MT 100 F by Tayca; silica, alumina and silicone, such as the products sold under the names Microtitanium Dioxide; MT 100 SAS, Microtitanium Dioxide MT 600 SAS and Microtitanium Dioxide MT 500 SAS by the company TAYCA, sodium hexametaphosphate, such as the product marketed under the name Microtitanium Dioxide MT 150 W by TAYCA, octyltrimethoxysilane, such as the product sold under the name T-805 by Degussa, - alumina and stearic acid, such as the product sold under the name UVT-M160 by Kemira, - alumina and glycerin, such as the product sold under the name UVT-M212 by KEMIRA, - alumina and silicone, such as the product sold under the name UVT-M262 by the company summer KEMIRA.

The untreated titanium oxides may, for example, be those sold by Tayca under the trade names Microtitanium Dioxide MT 500 B or Microtitanium Dioxide MT 600 B.

The untreated zinc oxides can for example be those sold by the company SUMITOMO under the name Ultra Fine Zinc Oxide Powder, by the company PRESPERSE under the name Finex 25, by the company IKEDA under the name MZO-25 or by the company SUNSMART under the name ZCOTE. The treated zinc oxides may for example be those sold by Sunsmart under the name Z-Cote HP 1.

The composition preferably has a pH which respects the skin. This pH is generally from 5 to 8 and preferably from 5.5 to 7.5.

As indicated above, the compositions according to the invention may be more or less fluid and may therefore be in the form of serum, milk, cream or ointment. These compositions are prepared according to the usual methods.

protection, le soin, le démaquillage et/ou le nettoyage de la peau, des lèvres et/ou des cheveux, et/ou pour le maquillage de la peau et/ou des lèvres. Elles sont particulièrement appropriées pour la nutrition de la peau, et elles peuvent aussi être destinées au traitement des peaux sèches et/ou des lèvres sèches. The compositions which are the subject of the invention may constitute in particular a cosmetic or dermatological composition, and they find their application in particular in a large number of cosmetic treatments of the skin, lips and hair, including the scalp, in particular for the treatment, the

protecting, caring, removing make-up and / or cleaning the skin, lips and / or hair, and / or for making up the skin and / or the lips. They are particularly suitable for the nutrition of the skin, and they can also be intended for the treatment of dry skin and / or dry lips.

The compositions according to the invention may, for example, be used as skincare, make-up removal and / or facial cleansing products in the form of creams or milks or as makeup products (skin and lips) by incorporation of fillers or dyes. .

<Desc / Clms Page number 20>

 Also, the subject of the invention is also the cosmetic use of the composition as defined above for the treatment, protection, care, removal of make-up and / or cleansing of the skin, lips and / or hair , and / or for makeup of the skin and / or lips.

The invention also relates to the use of the composition as defined above for the manufacture of a composition for the care of dry skin and / or dry lips.

The subject of the invention is also a process for the cosmetic treatment of the skin, including the scalp, the hair, and / or the lips, characterized by the fact that it is applied to the skin, the hair and / or the lips a composition as defined above.

The examples which follow will make it possible to better understand the invention, without however being limiting in nature. The quantities indicated are in% by weight, unless otherwise indicated.

Example 1 according to the invention

<Tb>
<tb> Phase <SEP> A <SEP> (aqueous)
<tb> Glycerin <SEP> 5 <SEP>%
<tb> PEG-4 <SEP> laurate <SEP> (Lipopeg <SEP> 2-L <SEP> of <SEP> LIPO) <SEP> 0.08 <SEP>%
<tb> Demineralized <SEP> water <SEP> qsp <SEP> 100 <SEP>%
<tb> Hibiscin <SEP> HP <SEP> LS <SEP> 9198 <SEP> 0.1 <SEP>%
<tb> Conservative <SEP> 1.1 <SEP>%
<tb> Phase <SEP> B <SEP> (Oily)
<tb> Cococaprylate / caprate <SEP> 3 <SEP>%
<tb> Ethylhexyl <SEP> methoxycinnamate <SEP> 7.5 <SEP>%
<tb> Oil <SEP> of <SEP> butter <SEP> of <SEP> shea butter <SEP> 2 <SEP>%
<tb> Cyclomethicone <SEP> 1 <SEP>%
<tb> Phase <SEP> C
<tb> Hostacerin <SEP> AMPS <SEP> 2 <SEP>%
<Tb>
Procedure: Phase A is prepared at 800 ° C. and phase B is prepared at 850 ° C. in a water bath. Phase B is introduced into phase A with stirring and phase C is added at about 60 ° C.

An emulsion is obtained constituting a smooth, shiny, stable white cream capable of protecting and nourishing dry skin.

<Desc / Clms Page number 21>

Comparative Example 1

<Tb>
<tb> Phase <SEP> A <SEP> (aqueous)
<tb> Glycerin <SEP> 5 <SEP>%
<tb> Preservatives <SEP> 1.1 <SEP>%
<tb> Demineralized <SEP> water <SEP> qsp <SEP> 100 <SEP>%
<tb> Hibiscin <SEP> HP <SEP> LS <SEP> 9198 <SEP> 0, <SEP> 1 <SEP>%
<tb> Phase <SEP> B <SEP> (Oily)
<tb> Cococapryl <SEP> ate / cap <SEP> rate <SEP> 3 <SEP>%
<tb> Ethylhexyl <SEP> methoxycinnamte <SEP> 7, <SEP> 5 <SEP>%
<tb> Fraction <SEP> liquid <SEP> of <SEP> butter <SEP> of <SEP> shea butter <SEP> 2 <SEP>%
<tb> Cyclomethicone <SEP> 1 <SEP>%
<tb> Phase <SEP> C
<tb> Hostacerin <SEP> AMPS <SEP> 2 <SEP>%
<Tb>
Procedure: Using the procedure of Example 1, it is not possible to emulsify because there is an immediate release of the oily phase. If the emulsion is made without Hibiscin HP LS 9198, an emulsion is easily obtained, but if Hibiscin HP LS 9198 is added, the emulsion breaks when Hibiscin HP LS 9198 is added. that is, a phase shift between the aqueous phase and the oil phase is seen macroscopically, and a large number of oily phase globules and a loose emulsion base are observed microscopically.

Comparative Example 2

<Tb>
<tb> Phase <SEP> A <SEP> (aqueous)
<tb> Glycerin <SEP> 5 <SEP>%
<tb> Preservatives <SEP> 1, <SEP> 1 <SEP>%
<tb> Demineralized <SEP> water <SEP> qsp <SEP> 100 <SEP>%
<tb> Arginine <SEP> 0.12 <SEP>%
<tb> Phase <SEP> B <SEP> (Oily)
<tb> Cococaprylate / caprate <SEP> 3 <SEP>%
<tb> Ethylhexyl <SEP> methoxycinnamate <SEP> 7.5 <SEP>%
<tb> Fraction <SEP> liquid <SEP> of <SEP> butter <SEP> of <SEP> shea butter <SEP> 2 <SEP>%
<tb> Cyclomethicone <SEP> 1 <SEP>%
<tb> Phase <SEP> C
<tb> Hostacerin <SEP> AMPS <SEP> 2 <SEP>%
<Tb>
Procedure: as in Comparative Example 2.

As soon as the arginine is added, the emulsion obtained breaks, ie one sees macroscopically a phase shift between the aqueous phase and the oily phase, and one observes microscopically numerous and large globules of oily phase and a bottom loose emulsion.

<Desc / Clms Page number 22>

Example 2 according to the invention Phase A (aqueous)

<Tb>
<tb> Glycerin <SEP> 5 <SEP>%
<tb> PEG-100 <SEP> stearate <SEP> 0.08 <SEP>%
<tb> Demineralized <SEP> water <SEP> qsp <SEP> 100 <SEP>%
<tb> Hibiscin <SEP> HP <SEP> LS <SEP> 9198 <SEP> 0.1 <SEP>%
<tb> Conservative <SEP> 1.1 <SEP>%
<tb> Phase <SEP> B <SEP> (Oily)
<tb> Cococap <SEP> rylate / caprate <SEP> 3 <SEP>%
<tb> Ethylhexyl <SEP> methoxycinnamate <SEP> 7.5 <SEP>%
<tb> Oil <SEP> of <SEP> butter <SEP> of <SEP> shea butter <SEP> 2 <SEP>%
<tb> Cyclomethicone <SEP> 1 <SEP>%
<tb> Phase <SEP> C
<tb> Hostacerin <SEP> AMPS <SEP> 2 <SEP>%
<tb> Phase <SEP> 0
<tb> Eusolex <SEP> 232 <SEP> 1.8 <SEP>%
<Tb>
Procedure: As in Example 1, then phase D is added at room temperature.

An emulsion is obtained which constitutes a smooth, shiny, stable white cream capable of protecting and nourishing dry skin.

Example 3 according to the invention

<Tb>
<tb> Phase <SEP> A <SEP> (aqueous)
<tb> Glycerin <SEP> 5 <SEP>%
<tb> PEG-50 <SEP> stearate <SEP> 0.08 <SEP>%
<tb> Demineralized <SEP> water <SEP> qsp <SEP> 100 <SEP>%
<tb> Hibiscin <SEP> HP <SEP> LS <SEP> 9198 <SEP> 0, <SEP> 1 <SEP>%
<tb> Conservative <SEP> 1, <SEP> 1 <SEP>%
<tb> Phase <SEP> B <SEP> (Oily)
<tb> Cococaprylate / caprate <SEP> 3 <SEP>%
<tb> Ethylhexyl <SEP> methoxycinnamate <SEP> 7.5 <SEP>%
<tb> Oil <SEP> of <SEP> butter <SEP> of <SEP> shea butter <SEP> 2 <SEP>%
<tb> Cyclomethicone <SEP> 1 <SEP>%
<tb> Phase <SEP> C
<tb> Hostacerin <SEP> AMPS <SEP> 2 <SEP>%
<tb> Phase <SEP> D
<tb> Eusolex <SEP> 232 <SEP> 1.8 <SEP>%
<Tb>

<Desc / Clms Page number 23>

 Procedure: As in Example 2.

An emulsion is obtained constituting a smooth, shiny, stable white cream capable of protecting and nourishing dry skin.

Example 4 according to the invention

<Tb>
<tb> Phase <SEP> A <SEP> (aqueous)
<tb> Glycerin <SEP> 5 <SEP>%
<tb> Glycacil <SEP> L <SEP> 0.2 <SEP>%
<tb> Demineralized <SEP> water <SEP> qsp <SEP> 100 <SEP>%
<tb> Hibiscin <SEP> HP <SEP> LS <SEP> 9198 <SEP> 0, <SEP> 1 <SEP>%
<tb> Conservative <SEP> 1.1 <SEP>%
<tb> Phase <SEP> B <SEP> (Oily)
<tb> Apricot oil <SEP><SEP> 3 <SEP>%
<tb> Ethylhexyl <SEP> methoxycinnamate <SEP> 7.5 <SEP>%
<tb> Oil <SEP> of <SEP> butter <SEP> of <SEP> shea butter <SEP> 2 <SEP>%
<tb> Cyclomethicone <SEP> 1 <SEP>%
<tb> Phase <SEP> C
<tb> Hostacerin <SEP> AMPS <SEP> 2 <SEP>%
<tb> Phase <SEP> D
<tb> Eusolex <SEP> 232 <SEP> 1.8 <SEP>%
<Tb>
Procedure: As in Example 2.

A smooth, shiny, stable white emulsion is obtained, capable of protecting and nourishing dry skin.

Comparative Example 3

<Tb>
<tb> Phase <SEP> A <SEP> (aqueous)
<tb> Glycerin <SEP> 5 <SEP>%
<tb> Glyceryl <SEP> stearate <SEP> 0.08 <SEP>%
<tb> Preservatives <SEP> 1, <SEP> 1 <SEP>%
<tb> Demineralized <SEP> water <SEP> qsp <SEP> 100 <SEP>%
<tb> Hibiscin <SEP> HP <SEP> LS <SEP> 9198 <SEP> 0.1 <SEP>%
<tb> Phase <SEP> B <SEP> (Oily)
<tb> Cococaprylate / caprate <SEP> 3 <SEP>%
<tb> Ethylhexyl <SEP> methoxycinnamate <SEP> 7.5 <SEP>%
<tb> Fraction <SEP> liquid <SEP> of <SEP> butter <SEP> of <SEP> shea butter <SEP> 2 <SEP>%
<tb> Cyclomethicone <SEP> 1 <SEP>%
<Tb>
Phase C

<Desc / Clms Page number 24>

<Tb>
<tb> Hostacerin <SEP> AMPS <SEP> 2 <SEP>%
<Tb>
Procedure: As in Comparative Example 1.

The emulsion prepared without Hibiscin HP LS 9198 breaks upon the addition of Hibiscin HP LS 9198, that is to say we see macroscopically a phase shift between aqueous phase and oily phase, and microscopically observed many and large oily phase globules and a loose emulsion background.

This comparative example shows that all the surfactants usually used in O / W emulsions are not suitable for stabilizing the emulsion and that only monoesters of fatty acid and of polyethylene glycol are suitable.

Claims (43)

1. Composition in the form of an oil-in-water emulsion comprising in a physiologically acceptable medium, an oily phase dispersed in an aqueous phase, characterized in that it contains at least one fatty acid monoester and polyethylene glycol, and at least one polymer comprising at least one ethylenically unsaturated monomer and a sulfonic group. 2. Composition according to claim 1, characterized in that it contains less than about 0.5% by weight of surfactant active material. 3. Composition according to claim 1 or 2, characterized in that the amount of monoester (s) of fatty acid and polyethylene glycol ranges from 0.001 to 0.45% by weight, and preferably from 0.01 to 0. , 2% by weight of active material relative to the total weight of the composition. 4. Composition according to any one of the preceding claims, characterized in that the monoester of fatty acid and polyethylene glycol has a molecular weight equal to or greater than 450. 5. Composition according to any one of the preceding claims, characterized in that the fatty acid monoester and polyethylene glycol is selected from fatty acid esters having from 8 to 24 carbon atoms and preferably from 10 to 20 carbon atoms, and polyethylene glycol having from 1 to 200 oxyethylene groups and preferably from 2 to 100 oxyethylene groups, and mixtures thereof. 6. Composition according to any one of the preceding claims, characterized in that the fatty acid monoester and polyethylene glycol is chosen from polyethylene glycol laurates, cocoates and stearates containing from 1 to 200 oxyethylenated groups and preferably from 2 to 150 oxyethylenated groups, and mixtures thereof. 7. Composition according to any one of the preceding claims, characterized in that the monoester of fatty acid and of polyethylene glycol is chosen from polyethylene glycol monolaurate having 4 oxyethylene groups, the polyethylene glycol monococoate containing 4 oxyethylenated groups, polyethylene glycol monostearate having 100 oxyethylenated groups, polyethylene glycol monostearate having 50 oxyethylenated groups, and mixtures thereof. 8. Composition according to any one of the preceding claims, characterized in that the monoester of fatty acid and of polyethylene glycol is in the form of a mixture comprising 3-iodo-2-propynyl butylcarbamate, PEG-4 laurate, PEG. -4 dilaurate and PEG-4. 9. Composition according to any one of the preceding claims, characterized in that the monoester of fatty acid and polyethylene glycol is in the form of a mixture of polyethylene glycol monostearate with 100 oxyethylene groups and glyceryl stearate. <Desc / Clms Page number 26> 10. Composition according to any one of the preceding claims, characterized in that the ethylenically unsaturated monomer and sulfonic group of the polymer is selected from vinylsulfonic acid, styrene sulfonic acid, (meth) acrylamido acids (C1- C22) alkylsulfonic acids, N- (C1-C22) alkyl- (meth) acrylamido (C1-C22) alkylsulphonic acids, as well as their partially or completely neutralized forms, and mixtures thereof. 11. Composition according to the preceding claim, characterized in that the monomer is selected from acrylamido-methanesulfonic acid, the acid

 acrylamido-ethanesulfonic acid, acrylamido-propanesulfonic acid, 2acrylamido-2-methylpropanesulfonic acid, 2-methacrylamido-2-methylpropanesulfonic acid, 2-acrylamido-n-butane sulfonic acid, 2-acrylamido-2,4,4-trimethylpentanesulfonic acid, 2-methacrylamido-dodecylsulphonic acid, 2-acrylamido-2,6-dimethyl-3-heptanesulfonic acid and as their partially or totally neutralized forms, and their mixtures. 12. Composition according to any one of the preceding claims, characterized in that the polymer is crosslinked. 13. Composition according to the preceding claim, characterized in that the crosslinking agent is chosen from divinylbenzene, diallyl ether,

 dipropylene glycol diallyl ether, polyglycol diallyl ethers, triethylene glycol divinyl ether, hydroquinone diallyl ether, tetraallyl oxethanoyl or other allyl or vinyl ethers of polyfunctional alcohols, di (meth) acrylate of ethylene glycol or tetraethylene glycol, triallylamine, trimethylolpropane-diallylether, methylenebisacrylamide, methylenebis-methacrylamide, triallyl cyanurate,

 diallylmaleate, tetraallylethylenediamine, tetra-allyloxyethane, trimethylolpropane-diallylether, allyl (meth) acrylate, allyl ethers of alcohols of the series of sugars, or other allyl-or vinyl-ethers of polyfunctional alcohols, as well as allyl esters of phosphoric and / or vinylphosphonic acid derivatives, and mixtures thereof.  14. Composition according to claim 12 or 13, characterized in that the crosslinking agent is selected from methylene-bis-acrylamide, allyl methacrylate or trimethylol propane triacrylate.  15. Composition according to any one of claims 12 to 14, characterized in that the degree of crosslinking is from 0.01 to 10 mol% relative to the polymer.  16. Composition according to any one of the preceding claims, characterized in that the polymer is chosen from polymers comprising, randomly distributed: a) from 90 to 99.9% by weight of units of general formula (1) next : <Desc / Clms Page number 27>  wherein X + is selected from a H + proton, an alkali metal cation, an alkaline earth cation, the ammonium ion and mixtures thereof, at most 10% mole of the X + cations may be H + protons; b) from 0.01 to 10% by weight of crosslinking units from at least one crosslinking monomer having at least two olefinic double bonds; the proportions by weight being defined relative to the total weight of the polymer.

17. Composition according to any one of the preceding claims, characterized in that the polymer is a crosslinked and neutralized homopolymer of 2-acrylamido-2-methylpropanesulfonic acid. 18. Composition according to any one of the preceding claims, characterized in that the polymer is an amphiphilic homopolymer chosen from AMPS random amphiphilic polymers modified by reaction with a n-monoalkylamine or a C6-di-n-alkylamine. C22. 19. Composition according to any one of the preceding claims, characterized in that the polymer is a copolymer obtained from ethylenically unsaturated monomers and sulfonic group and ethylenically unsaturated monomers without sulfonic group. 20. Composition according to the preceding claim, characterized in that the ethylenically unsaturated monomer without sulfonic group is selected from hydrophilic monomers, hydrophobic monomers and mixtures thereof. 21. Composition according to the preceding claim, characterized in that the hydrophilic monomer is chosen from (meth) acrylic acids, their p-substituted alkyl derivatives or their esters obtained with monoalcohols or mono or poly-alkylene glycols, the (meth) acrylamides, vinylpyrrolidone, vinylformamid, maleic anhydride, itaconic acid, maleic acid, and mixtures thereof. 22. Composition according to any one of the preceding claims, characterized in that the polymer is an amphiphilic polymer obtained from 2-acrylamido-2-methylpropanesulfonic acid and at least one hydrophobic ethylenically unsaturated monomer comprising at least one hydrophobic part having from 6 to 50 carbon atoms, preferably from 6 to 22 carbon atoms. <Desc / Clms Page number 28>  in which R1 and R3, which may be identical or different, denote a hydrogen atom or a linear or branched C1-C6 alkyl radical; Y is 0 or NH; R2 is a hydrophobic hydrocarbon radical having at least 6 to 50 carbon atoms; x denotes a number of moles of alkylene oxide and ranges from 0 to 100.

 23. Composition according to the preceding claim, characterized in that the hydrophobic monomer ethylenically unsaturated is selected from acrylates, alkylacrylates, acrylamides or alkylacrylamides of formula (II) below: 24. Composition according to the preceding claim, characterized in that,

 in ! a form (!!),? 2 is selected from linear, branched or cyclic C6-C18 alkyl radicals; perfluorinated alkyl radicals of Ce-C18; the cholesteryl radical or a cholesterol ester residue; polycyclic aromatic groups. 25. Composition according to claim 23 or 24, characterized in that the monomer of formula (II) additionally comprises at least one polyoxyalkylene chain. 26. Composition according to claim 22, characterized in that the amphiphilic polymer is chosen from: - crosslinked or non-crosslinked copolymers, neutralized or not, comprising from 15 to 60% by weight of 2-acrylamido-2-methylpropane acid units sulphonic and from 40 to 85% by weight of (C 8 -C 16) alkyl (meth) acrylamide units or (C 8 -C 16) alkyl (meth) acrylate units, relative to the polymer; terpolymers comprising from 10 to 90 mol% of acrylamide units, from 0.1 to 10 mol% of 2-acrylamido-2-methylpropanesulfonic acid units and from 5 to 80 mol% of n- (C6) units; -1s) alkylacrylamide, relative to the polymer; copolymers of 2-acrylamido-2-methylpropanesulfonic acid and of n-dodecyl, n-hexadecyl or n-octadecyl methacrylate. copolymers of 2-acrylamido-2-methylpropanesulphonic acid and of n-dodecylmethacrylamide. 27. Composition according to Claim 22, characterized in that the amphiphilic polymer is chosen from copolymers consisting of 2acrylamido-2-methylpropanesulfonic acid units of formula (1) below: <Desc / Clms Page number 29>  wherein x is an integer ranging from 3 to 100; R1 has the same meaning as that indicated above in formula (II) and R4 denotes linear or branched C6-C22 alkyl.

 wherein X + is selected from a proton, an alkali metal cation, an alkaline earth cation, the ammonium ion and mixtures thereof, at most 10% mole of the X + cations may be H + protons; and of units of formula (III) below:

28. Composition according to the preceding claim, characterized in that, in formula (III), x = 25, R1 is methyl and R4 is n-dodecyl, n-hexadecyl, noctadecyl or mixtures thereof. 29. Composition according to any one of the preceding claims, characterized in that the amount of polymer (s) ranges from 0.1 to 10% by weight of active material relative to the total weight of the composition. 30. Composition according to any one of the preceding claims, characterized in that it further comprises at least one amino acid or at least one active agent containing at least one amino acid. 31. Composition according to the preceding claim, characterized in that the amino acid is selected from glutamic acid, aspartic acid, arginine, glycine, alanine, valine, leucine, isoleucine serine, threonine, proline, hydroxyproline, ss-alanine, aminobutyric acid, aminocaproic acid, sarcosine, N-methyl-s-alanine, and mixtures thereof. 32. Composition according to claim 30 or 31, characterized in that the amino acid is in the form of an extract of plant origin. <Desc / Clms Page number 30>  33. Composition according to the preceding claim, characterized in that the extract of plant origin is a hibiscus extract. 34. Composition according to any one of claims 31 to 33, characterized in that the amount of acid (s) amine (s) ranges from 0.001 to 15% by weight of active material and preferably from 0.002 to 10% by weight relative to the total weight of the composition. 35. Composition according to any one of the preceding claims, characterized in that the oily phase represents from 1 to 80% and preferably from 10 to 60% by weight relative to the total weight of the composition. 36. Composition according to any one of the preceding claims, characterized in that it contains at least one volatile silicone oil. 37. Composition according to any one of the preceding claims, characterized in that it contains at least one active ingredient chosen from hydrating agents; anti-inflammatories; procyannidol oligomers; vitamins, derivatives of these vitamins and mixtures thereof; urea; caffeine; depigmenting agents; salicylic acid and its derivatives; alpha-hydroxy acids and their derivatives; your retinoids; solar filters; hydrocortisone; melatonin; extracts of algae, mushrooms, vegetables, yeasts, bacteria; enzymes; steroids; anti-bacterial assets; mattifying agents; tensors; their mixtures. 38. Composition according to the preceding claim, characterized in that it comprises at least one filter. 39. Composition according to any one of the preceding claims, characterized in that it constitutes a cosmetic or dermatological composition. 40. Cosmetic use of a cosmetic composition according to any one of Claims 1 to 38, for the treatment, the protection, the care, the make-up removal

 and / or cleaning the skin, lips and / or hair, and / or for makeup of the skin and / or lips. 41. Use of the composition according to any one of claims 1 to 38, for the manufacture of a composition for the care of dry skin and / or dry lips. 42. Cosmetic treatment method for the skin, the hair, and / or the lips,

 characterized in that a cosmetic composition according to any one of claims 1 to 38 is applied to the skin, the hair and / or the lips. 43. Use of at least one fatty acid monoester and of polyethylene glycol, for stabilizing a composition in the form of an O / W emulsion, containing at least one polymer comprising at least one ethylenically unsaturated monomer and with a sulfonic group, and at least one amino acid or an active ingredient containing <Desc / Clms Page number 31>  composition containing less than about 0.5% by weight of surfactant active material.