FR2936413A1 - Use of composition comprising in medium one or more organosilicon compounds comprising e.g. silicon atoms, and hydroxyl groups in pre-treatment composition containing hydrophobic film-forming polymers, pigments and volatile solvents - Google Patents

Abstract

Use of a composition (I) comprising in a medium one or more organosilicon compounds (A) comprising 1-3 silicon atoms, one or more basic chemical functions and one or more hydroxyl or hydrolyzable groups per molecule in a pre-treatment composition comprising one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents, is claimed. An independent claim is included for treating keratin fibers comprising applying a pre-treatment composition comprising (A) in medium, then applying a composition comprising hydrophobic film-forming polymers, pigments and volatile solvents.

Description

PATENT APPLICATION B08-2228FR GD / GL OA08323 Société Anonyme known as L'OREAL Use of a composition comprising an organic silicon compound comprising at least one basic function in pre-treatment of a composition comprising a hydrophobic film-forming polymer, a pigment and a volatile solvent. Invention of: Gaelle BRUN Arnaud BONNAMY Use of a Composition Comprising an Organic Silicon Compound Comprising at Least a Basic Function in Pre-Treatment of a Composition Comprising a Hydrophobic Film-forming Polymer, a Pigment and a Volatile Solvent The invention relates to the use of a cosmetic composition comprising, in a cosmetically acceptable medium, one or more organic silicon compounds suitably selected in pre-treatment of a composition comprising one or more hydrophobic film-forming polymers, one or more pigments and one or more several volatile solvents. The present invention also relates to a process for treating keratinous fibers, in particular human keratin fibers such as the hair, comprising applying to said keratin fibers a cosmetic pre-treatment composition comprising, in a cosmetically acceptable medium, one or more suitably selected organic silicon compounds, and then applying a composition comprising one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents. The hair is generally damaged and weakened by the action of external atmospheric agents such as light and weather, and by mechanical or chemical treatments such as brushing, combing, discoloration, perms and / or dyes. As a result, the hair is often difficult to discipline, in particular they are difficult to disentangle or comb, and hair, even abundant, difficult to maintain a good looking hairstyle due to the fact that the hair lack of vigor, volume and nervousness.

This degradation of the hair is also increased by the repetition of permanent hair coloring treatments, which consists in applying to the hair one or more dye precursors and an oxidizing agent. Thus, to remedy this, it is now customary to apply styling products that can condition the hair by providing them including body, mass or volume. These styling products are generally cosmetic hair compositions comprising one or more polymers which have a high affinity for the hair and which most often have the function of forming a film on their surface in order to modify their surface properties, in particular for conditioning them. or to bring them particular optical properties. A disadvantage related to the use of these hair compositions lies in the fact that the cosmetic effects conferred by such compositions tend to disappear, especially from the first shampoo. Furthermore, in the field of keratinous fiber staining, it is already known to stain keratinous fibers by various techniques from direct dyes for non-permanent dyes or dye precursors for permanent dyes. Non-permanent staining or direct dyeing consists in dyeing the keratinous fibers with dyeing compositions containing direct dyes. These dyes are colored molecules and dyes having an affinity for keratinous fibers. They are applied to the keratin fibers for a time necessary to obtain the desired color, and then rinsed. The standard dyes which are used are in particular dyes of the nitrobenzene, anthraquinone, nitropyridine, azo, xanthene, acridine, azine or triarylmethane type or natural dyes. Some of these dyes can be used in lightening conditions which allows to obtain visible colorations on dark hair.

It is also known to dye keratin fibers permanently by oxidation dyeing. This staining technique consists in applying to the keratinous fibers a composition containing dye precursors such as oxidation bases and couplers. These precursors under the action of an oxidizing agent will form in the hair one or more colored species. The variety of molecules involved in the oxidation bases and couplers makes it possible to obtain a rich palette of colors and the resulting colorings are generally powerful and resistant to external agents, especially to light. weathering, washing, sweating and rubbing. To be visible on dark hair, these two staining techniques require prior or simultaneous bleaching of the keratinous fibers. This bleaching step carried out with an oxidizing agent such as hydrogen peroxide or persalts causes a significant degradation of keratin fibers which alters their cosmetic properties. The hair then tends to become rough, more difficult to disentangle and more fragile.

Another staining method is to use pigments. Indeed, the use of pigment on the surface of keratin fibers generally makes it possible to obtain visible colorations on dark hair since the surface pigment hides the natural color of the fiber. The use of pigments for dyeing keratinous fibers is described, for example, in patent application FR 2,741,530, which recommends the use, for the temporary dyeing of keratinous fibers, of a composition comprising at least one dispersion of particles of film-forming polymer. comprising at least one acid function and at least one pigment dispersed in the continuous phase of said dispersion. The colorations obtained by this mode of coloration have the disadvantage of being eliminated from the first shampoo. To remedy these drawbacks, it has been proposed to effect sheathings by applying to the hair a composition comprising a hydrophobic film-forming polymer, in particular a polysiloxane / polyurea block copolymer, as in the patent application FR 2 907 677. Such a composition allows to obtain perfectly sheathed and non-greasy hair. The sheathings obtained are resistant to shampoos but have the disadvantage of poor performance if the hair is sensitized. There is therefore a real need to implement a hair dyeing process with pigments, which does not have the drawbacks described above, that is to say which leads to shampoo-retaining color sheathings and external aggressions with good cosmetic properties (body weight, mass or volume to the hair), in a sustainable manner and all this whatever the sensitization of the treated hair. The Applicant has surprisingly discovered that it is possible to use, on keratinous fibers, cosmetic compositions comprising one or more organic silicon compounds as defined below in pre-treatment of a cosmetic composition comprising one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents in order to obtain the desired properties. In particular, it has been found that the use of a cosmetic composition comprising such organic silicon compounds in pre-treatment of a cosmetic composition comprising one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents. allowed to improve the affinity between the keratinous fibers and the hydrophobic film-forming polymer complex / pigment whatever the sensitization of the hair. Indeed, the use of a cosmetic composition comprising such organic silicon compounds in pre-treatment of a composition comprising one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents makes it possible to lead to a sheathing. colored hair that has a satisfactory performance compared to external aggressions, such as blow drying, friction or perspiration. Furthermore, it has been observed that the use of a cosmetic composition comprising one or more organic silicon compounds as defined below in pre-treatment of a composition comprising one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents makes it possible to impart mass and body to the hair and this in a non-volatile manner, in particular with respect to the shampoos.

In addition, when the pre-treatment composition comprises water or when it is applied in the presence of water, for example on damp hair, the organic silicon compound (s) may hydrolyze and then condense to form a water. hybrid prepolymer promoting the adhesion of the organosilane to the hair.

It has also been observed that the shampooing behavior is improved compared to that obtained with cosmetic compositions based on hydrophobic film-forming polymers and volatile solvent used alone. In addition, the sheathings obtained are in the form of a homogeneous deposit, smooth and has excellent adhesion to the hair. Furthermore, it was found that the hair remained perfectly individualized as a result of this treatment in two stages. Individualized hair means hair which after application of the composition and drying are not glued (or are all separated from each other) between them and therefore do not form hair clusters, the cladding being formed around virtually every hair . The present invention therefore particularly relates to the use of a cosmetic composition comprising, in a cosmetically acceptable medium, one or more organic silicon compounds, selected from silanes comprising one, two or three silicon atoms, said organic compounds of silicon further comprising one or more basic chemical functions and one or more hydroxyl or hydrolyzable groups per molecule in pre-treatment of a cosmetic composition containing one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents.

In other words, the cosmetic composition comprising the organic silicon compound (s) as described above is used in addition to the cosmetic composition comprising the hydrophobic film-forming polymer (s), one or more pigments and the volatile solvent (s).

The present invention also relates to a process for cosmetic treatment of keratinous fibers, in particular human keratinous fibers such as the hair, which consists in applying to said keratin fibers a cosmetic pre-treatment composition comprising, in a cosmetically acceptable medium, one or more organic silicon compounds as described above, then applying a cosmetic composition comprising one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents. Other objects and features, aspects and advantages of the invention will emerge even more clearly on reading the description and examples which follow. The organic silicon compounds present in the composition used in pre-treatment are chosen from organosilanes comprising one, two or three silicon atoms, preferably two silicon atoms. They must also include one or more basic chemical functions. The basic chemical function may correspond to any function conferring a basic character to the silicon compound and is preferably an amine function such as a primary, secondary or tertiary amine function. The basic chemical function of the silicon compounds according to the invention may optionally comprise other functions, such as, for example, another amine function, an acid function or a halogen function.

The organic silicon compound (s) used in the pre-treatment composition further comprise two or more hydrolyzable or hydroxyl groups per molecule. The hydrolyzable groups are preferably alkoxy, aryloxy or halogen groups. They may also possibly include other chemical functions such as acid functions. According to a particular embodiment, the organic silicon compound (s) used in the pre-treatment composition according to the invention are chosen from compounds of formula (I): ## STR2 ## in which: R 4 represents a halogen, a group OR 'or R'1; R5 is halogen, OR "or R'2, R6 is halogen, OR" or R'3; R1, R2, R3, R ', R ", R"', R'1, R'2, R'3 represent, independently of one another, a saturated or unsaturated hydrocarbon group, linear or branched, optionally bearing groups Further, such as acidic or amine groups, R 1, R 2, R ', R "and R"' may further denote hydrogen, and at least two of R 4, R 5 and R 6 being different from R '1 groups , R'2 and R'3. Preferably, the groups R 1, R 2, R ', R' 1, R '2, R' 3, R "and R" 'are chosen from alkyl radicals of C 1 -C 12, C 5 -C 14 aryl, alkyl ( C1-C8) C5-C14 aryl, and C1-C6 aryl (CS-C14) alkyl. Preferably, the groups R 3 is chosen from C 1 -C 12 alkylene radicals, optionally substituted with an amino group, C 5 -C 14 arylene, C 5 -C 14 arylene (C 1 -C 8) arylene, and arylene (C -C 14) alkylene groups. in C1-C8. According to a particular embodiment, the organic silicon compound (s) present in the pretreatment composition corresponding to formulas (I) are preferably 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane or N- (2-aminoethyl). -3-aminopropyltriethoxysilane, and 3- (2-aminoethylamino) propyl-methyldiethoxysilane.

According to another embodiment, the organic silicon compound (s) present in the pre-treatment composition used according to the invention are chosen from the compounds of formula (II): (R21O) X (R22) ySi - (B) ## EQU2 ## wherein R21, R22, R22, R22, R'21 and R'22 each independently represent a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more groups selected from ether, ester, amine, amide, carboxyl groups; , hydroxyl and carbonyl, x is an integer ranging from 1 to 3, y = 3-x, x 'is an integer varying from del to 3, y' = 3-x ', p = 0ul, p' = 0ul, p "= 0 or, q = 0 or 1, q '= 0 or 1, it being understood that at least q or q' is different from zero, B, B 'and B "each independently represent a linear or branched C1-C20 divalent alkylene radical; , R23 and R'23 represent each independently a hydrogen atom or a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more ether groups, C1-C20 alcohol ester, amine, carboxyl , an alkoxysilane, a C6-C30 aryl, hydroxyl or carbonyl, or an aromatic cycle, heterocyclic or not, optionally substituted with one or more C3-C20 alcohol ester groups, amine, amide, carboxyl, alkoxysilane, hydroxyl, carbonyl or acyl. As previously explained, R21, R22, R'21 and R'22 each independently represent a hydrocarbon chain. The term "hydrocarbon-based chain" preferably means a chain comprising 1 to 30 and preferably 1 to 10 carbon atoms. Similarly, R 23 and R 23 may represent a hydrocarbon chain. In this case, it is preferable to mean a chain comprising 1 to 30 and preferably 1 to 10 carbon atoms.

Preferably, the aromatic ring contains from 6 to 30 carbon atoms. Still more preferably, it denotes an optionally substituted phenyl radical. Preferably, R21 = R'21; R22 = R'22; x = x 'Y = Y'; P = P 'B = B'; q = 1 and q '= 0.

The organic silicon compound (s) of formula (II) may also have the following characteristics, taken alone or in combination: R21, R22, R'21 and R'22, which may be identical or different, represent a C1-C4 alkyl, - p = p '= 1; - B and B ', identical or different, represent a linear alkylene C1-C4 and - R23 is hydrogen. For example, the organic silicon compound (s) may comprise a substituent comprising a secondary amine function, such as bis [3- (triethoxysilyl) propyl] amine of formula (CH 3 CH 2 O) 3 -Si (CH 2) 3 NH (CH 2) 3 Si (OCH 2 CH 3 ) 3 proposed by the company Fluorochem, bis [trimethoxysilylpropyl] amine of formula (CH3O) 3-Si (CH2) 3NH (CH2) 3Si (OCH3) 3 proposed by Gelest, bis [methyldiethoxysilylpropyl] amine of formula (CH3CH2O 2CH3Si (CH2) 3NH (CH2) 3SiCH3 (OCH2CH3) 2 provided by Gelest and bis [3-trimethoxysilylpropyl] ethylenediamine of formula (CH3O) 3Si (CH2) 3NH (CH) 2NH (CH2) 3Si (OCH3) 3 proposed by Gelest. Among these compounds, bis [3- (triethoxysilyl) propyl] amine and bis [methyldiethoxysilylpropyl] amine are preferred.

According to another embodiment of the invention, the organic silicon compound (s) is (are) chosen from the compounds of formula (III): ## STR2 ## wherein: R24 and R25 each independently represent a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more groups selected from ether, ester, amine, amide, carboxyl groups; hydroxyl and carbonyl, x "= 2 or 3; Y "= 3-x"; n '= 0or1; n "= 0 or 1, E and E 'each independently represent a divalent linear or branched C1 to C20 alkylene radical, R26 and R27 each independently represent hydrogen or a saturated or unsaturated, linear or branched hydrocarbon chain, optionally containing one or a plurality of heteroatoms, optionally interrupted or substituted by one or more ether groups, C 1 -C 20 alcohol ester, amine, carboxyl, alkoxysilane, C 6 -C 30 aryl, hydroxyl or carbonyl, or an aromatic, heterocyclic or non-heterocyclic ring, optionally substituted by one or more C1-C20 alcohol ester, amine, amide, carboxyl, alkoxysilane, hydroxyl, carbonyl or acyl groups, r is an integer ranging from 0 to 4, r '= 0 or 1, the R28 group represents each independently hydrogen or a saturated or unsaturated hydrocarbon chain, linear or branched, preferably C 1 -C 1 o, optionally containing one or more heteroatoms, optionally int is substituted or substituted by one or more ether, C1-C20 alcohol ester, amine, carboxyl, alkoxysilane, C6-C30 aryl, hydroxyl or carbonyl groups, or an aromatic ring, heterocyclic or non-heterocyclic, optionally substituted by one or more C1-C20 alcohol ester, amine, amide, carboxyl, alkoxysilane, hydroxyl, carbonyl or acyl groups. As previously explained, R24 and R25 each independently represent a hydrocarbon chain. The term "hydrocarbon-based chain" preferably means a chain comprising from 1 to 30 and preferably 1 to 10 carbon atoms. Similarly, R 26 and R 27 may represent a hydrocarbon-based chain. In this case, it is preferable to mean a chain comprising 1 to 30 and preferably 1 to 10 carbon atoms. Preferably, the aromatic ring has from 6 to 30 carbon atoms. Even more preferentially, it denotes an optionally substituted phenyl radical. The organosilicon compound (s) of formula (III) may have the following characteristics, taken alone or in combination: R 24 is C 1 -C 4 alkyl, - x "= 3, n '= n" = 1; r = r '= 0, R26 and R27 independently represent hydrogen or a group selected from C1-C4 alkyl, C1-C4 hydroxyalkyl and C1-C4 aminoalkyl groups. In particular, the organosilicon compound (s) of formula (III) may be chosen from: 3- (m-aminophenoxy) propyltrimethoxysilane, of formula: O (CH 2) 3 -Si (OCH 3) 3 H 2 N - p -aminophenyltrimethoxysilane, of formula: Si (OCH 3) 3 - N- (2-aminoethylaminomethyl) phenethyltrimethoxysilane, of the formula: ## STR2 ## The organic silicon compound (s) can be present in the compositions according to the invention in proportions ranging from 0.1 to 40% by weight, preferably from 0.2 to 30% by weight and more preferably from 0.5 to 20% by weight, relative to total weight of the composition. By cosmetically acceptable medium is meant a medium compatible with keratin fibers, such as the hair. The cosmetically acceptable medium of the pre-treatment composition according to the invention consists of water, a cosmetically acceptable solvent or a mixture of water and one or more cosmetically acceptable solvents. These cosmetically acceptable solvents may be chosen from C1-C4 lower alcohols, such as ethanol, isopropanol, polyols and ether polyols such as 2-butoxyethanol, propylene glycol, propylene glycol monomethyl ether, and monoethyl ether. diethylene glycol monomethyl ether, as well as aromatic alcohols such as benzyl alcohol or phenoxyethanol, and mixtures thereof. Preferably, the cosmetically acceptable medium consists of water, ethanol or a mixture of water and ethanol. The organic silicon compound (s) is (are) soluble in the cosmetically acceptable medium and more preferably still soluble at a concentration of 1%, better at a concentration of 2% and even more preferably at a concentration of 5% by weight in water at room temperature. temperature of 25 ° C 5 ° C and at atmospheric pressure. By soluble is meant the formation of a single macroscopic phase.

The content of the cosmetically acceptable medium of the pre-treatment cosmetic composition can vary from 0.1% to 99% by weight, preferably from 5% to 98% by weight, relative to the total weight of the pre-treatment composition. . The organic silicon compound (s) may be partially neutralized by means of a neutralizing agent or pH regulator, such that the neutralization reaches 1/1000 to 99/100 and more preferably 0.2 / 100 to 70/100. . More preferably, the neutralization is 0.2 / 100 to 60/100. The pH-regulating agents may be any acids or mixtures of acids that are cosmetically acceptable and soluble in the medium of the composition. Among the acids that can be used include hydrochloric acid, phosphoric acid, sulfonic acid and organic acids. The composition used according to the invention may also contain one or more other organic acids.

The organic acids are generally chosen from acids comprising one or more carboxylic acid, sulphonic acid, phosphonic acid or phosphoric acid functional group. They may contain other chemical functions, in particular hydroxy or amino functions. They can be saturated or unsaturated. There may be mentioned in particular acetic acid, propanoic acid, butanoic acid, lactic acid, glycolic acid, ascorbic acid, maleic acid, phthalic acid, succinic acid, taurine, tartaric acid, gluconic acid, glucuronic acid and citric acid.

The preferred organic acids are lactic acid, acetic acid, citric acid. The cosmetic pre-treatment composition according to the invention generally has a pH of between 2 and 13, preferably between 4 and 11. More preferentially, the pH of the pre-treatment cosmetic composition obtained with the pH regulating agent is between 7 and 10.5, more preferably, the pH is between 8 and 10. The composition containing the organosilane may additionally contain a thickener. The thickening agents may be chosen from fatty acid amides (diethanol or coconut monoethanol amide, oxyethylenated alkyl ether carboxylic acid monoethanolamide), cellulose thickeners (hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose), guar gum and its derivatives (hydroxypropylguar), gums of microbial origin (xanthan gum, scleroglucan gum), crosslinked homopolymers of acrylic acid or acrylamidopropanesulfonic acid. By "polymer" is meant in the sense of the invention a compound corresponding to the repetition of one or more units (these units being derived from compounds called monomers). This or these motifs are repeated at least twice and preferably at least 3 times. By hydrophobic polymer is meant a polymer having a solubility in water at 25 ° C of less than 1% by weight. By "film-forming" polymer is meant a polymer capable of forming, by itself or in the presence of an auxiliary film-forming agent, a macroscopically continuous film on a support, in particular on keratin materials, and preferably a cohesive film. In a preferred embodiment, the hydrophobic organic film-forming polymer is a polymer chosen from the group comprising: film-forming polymers that are soluble in an organic solvent medium, in particular liposoluble polymers; this means that the polymer is soluble or miscible in the organic medium and will form a single homogeneous phase when incorporated into the medium. the film-forming polymers dispersible in an organic solvent medium, this means that the polymer forms an insoluble phase in the organic medium, the polymer remaining stable and / or compatible once incorporated in this medium. In particular, such polymers may be in the form of nonaqueous dispersions of polymer particles, preferably dispersions in silicone or hydrocarbon oils; in one embodiment, the non-aqueous polymer dispersions comprise polymeric particles stabilized on their surface by at least one stabilizing agent; these nonaqueous dispersions are often called NAD (non-aqueous dispersions). the film-forming polymers in the form of aqueous dispersions of polymer particles, this means that the polymer forms a phase insoluble in water, the polymer remaining stable and / or compatible once incorporated into the water, the polymer particles being stabilized on their surface by at least one stabilizing agent. These polymer particles are often called latex; in this case, the composition must comprise an aqueous phase. Among the hydrophobic film-forming polymers that can be used in the composition of the present invention, mention may be made of synthetic polymers, of free-radical type or of polycondensate type, polymers of natural origin, and mixtures thereof. Hydrophobic film-forming polymers that may be mentioned in particular include acrylic polymers, polyurethanes, polyesters, polyamides, polyureas, cellulose polymers such as nitrocellulose, silicone polymers, polyamide polymers and copolymers, and polyisoprenes.

The film-forming polymer may be chosen from the film-forming polymers described in application WO 04/028487, the contents of which are incorporated herein by reference. The hydrophobic film-forming polymer may in particular be chosen from: a) homopolymers and copolymers of olefins; cycloolefins; butadiene; isoprene; styrene; ethers, esters or vinyl amides; esters or amides of (meth) acrylic acid containing a linear, branched or cyclic C1-C20 alkyl group, a C6-C10 aryl group or a C2-C6 hydroxyalkyl group. Such homopolymers and copolymers may be obtained from monomers selected from the group consisting of isooctyl (meth) acrylate, iso-nonyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, meth) lauryl acrylate, isopentyl (meth) acrylate, n-butyl (meth) acrylate, iso-butyl (meth) acrylate, ethyl (meth) acrylate, (meth) methyl acrylate, tert-butyl (meth) acrylate, tridecyl (meth) acrylate, stearyl (meth) acrylate, hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, benzyl or phenyl acrylate. or mixtures thereof. As amides of the acidic monomers, mention may be made of (meth) acrylamides, and in particular N-alkyl (meth) acrylamides, in particular C 2 -C 12 alkyl such as N-ethyl acrylamide, Nt-butyl acrylamide, N-octyl acrylamide; N-dialkyl (Cl-C4) (meth) acrylamides, perfluoroalkyl (meth) acrylates. The above polymers may also contain as monomers small amounts of an unsaturated carboxylic or sulfonic acid such as acrylic acid, methacrylic acid, AMPS, provided that the overall character of the polymer remains hydrophobic. Other vinyl monomers which can be used include: N-vinylpyrrolidone, vinylcaprolactam, vinyl N-alkyl (C 1 -C 6) pyrroles, vinyl-oxazoles, vinyl-thiazoles, vinylpyrimidines, vinylimidazoles, olefins such as ethylene, propylene, butenes, isoprene, butadienes. The vinyl polymer may be crosslinked with one or more difunctional monomers, in particular comprising at least two ethylenic unsaturations, such as ethylene glycol dimethacrylate or diallyl phthalate.

For example, mention may be made of the alkyl acrylate / cycloalkyl acrylate copolymer sold by PHOENIX CHEM. under the name GIOVAREZ AC-5099 ML, the acrylates / C12-22 alkyl methacrylate copolymer marketed by ROHM AND HAAS under the name SOLTEX OPT and vinylpyrrolidone copolymers, such as copolymers of a C2 to C30 alkene, such as in C3 to C22, and combinations thereof, may be used. As examples of PV copolymers that can be used in the invention, the copolymer of VP / vinyl laurate, VP / vinyl stearate, polyvinylpyrrolidone (PVP) butylated, VP / hexadecene marketed by ISP under the name can be used. Ganex V216, VP / eicosene marketed by ISP under the name Ganex V220, VP / triacontene or VP / acrylic acid / lauryl methacrylate. Mention may also be made of the copolymers whose CTFA name (4th Ed., 1991) is octylacrylamide / acrylates / butylaminoethyl-methacrylate copolymer, such as the products sold under the name AMPHOMER or LOVOCRYL 47 by the company National Starch, as well as copolymers whose The CTFA name is Acrylates / octylacrylamide copolymer, such as the products sold under the name Dermacryl LT or Dermacryl 79 by the company National Starch. Particular polymers that may be mentioned include: (i) polymers bearing fluorinated groups belonging to one of the classes described in the above text, in particular the Fomblins described in US Pat. No. 5,948,393, the copolymers of (meth) alkyl acrylate / perfluoroalkyl (meth) acrylate described in patents EP 0 815 836 and US 5 849 318. ii) polymers or copolymers resulting from the polymerization or copolymerization of an ethylenic monomer, comprising one or more ethylenic bonds preferably conjugates (or dienes). As polymers or copolymers resulting from the polymerization or copolymerization of an ethylenic monomer, it is possible to use vinyl, acrylic or methacrylic copolymers. In one embodiment, the film-forming polymer is a block copolymer comprising at least one block consisting of styrene units or styrene derivatives (for example methylstyrene, chlorostyrene or chloromethylstyrene). The copolymer comprising at least one styrene block may be a diblock or triblock copolymer, or even a multiblock, star or radial copolymer. The copolymer comprising at least one styrene block may also comprise, for example, an alkylstyrene block (AS), an ethylene / butylene (EB) block, an ethylene / propylene (EP) block, a butadiene block (B), an isoprene block. (I), an acrylate block (A), a methacrylate block (MA) or a combination of these blocks. The copolymer comprising at least one block consisting of styrene units or styrene derivatives may be a diblock or triblock copolymer, and in particular of the polystyrene / polyisoprene or polystyrene / polybutadiene type, such as those marketed or manufactured under the name Luvitol HSB by BASF and those of the polystyrene / copoly (ethylene-propylene) or alternatively of the polystyrene / copoly (ethylene / butylene) type, such as those marketed or manufactured under the trademark Kraton by Shell Chemical Co. or Gelled Permethyl 99A by Penreco, can be used. Examples include Kraton G1650 (SEBS), Kraton G1651 (SEBS), Kraton G1652 (SEBS), Kraton G1657X (SEBS), Kraton G1701X (SEP), Kraton G1702X (SEP), Kraton G1726X (SEB), Kraton D-1101 (SBS), Kraton D-1102 (SBS), Kraton D-1107 (SIS), Gelled Permethyl 99A-750, Gelled Permethyl 99A-753-58 (polymer blend star block and triblock polymer), Gelled Permethyl 99A-753-59 (star block polymer and triblock polymer blend), Versagel MD 970 and Versagel MD 960 from Penreco (star polymer and triblock polymer in isododecane). Styrene-methacrylate copolymers may also be used, such as the polymers sold under the references OS 129880, OS 129881 and OS 84383 from Lubrizol (styrene-methacrylate copolymer). In one embodiment, the film-forming polymer is chosen from vinyl ester copolymers (the vinyl group being directly connected to the oxygen atom of the ester group and the vinyl ester having a saturated hydrocarbon radical, linear or branched, 1 to 19 carbon atoms, linked to the carbonyl group of the ester group) and at least one other monomer chosen from among the vinyl esters (different from the vinyl ester already present), the α-olefins (having from 8 to 28 carbon atoms), alkylvinyl ethers (the alkyl group contains from 2 to 18 carbon atoms), or allylic or methallyl esters (having a linear or branched saturated hydrocarbon radical of 1 to 19 carbon atoms bonded to the carbonyl ester group). These copolymers may be partially crosslinked by means of crosslinking agents which may be of the vinyl type, or of the allyl or methallyl type, such as tetraallyloxyethane, divinylbenzene, divinyl octanedioate, divinyl dodecanedioate, and octadecanedioate. of divinyl. Examples of such copolymers include copolymers: vinyl acetate / allyl stearate, vinyl acetate / vinyl laurate, vinyl acetate / vinyl stearate, vinyl acetate / octadecene, vinyl acetate / octadecylvinylether vinyl propionate / allyl laurate, vinyl propionate / vinyl laurate, vinyl stearate / octadecene-1, vinyl acetate / dodecene-1, vinyl stearate / ethyl vinyl ether, vinyl propionate / cetyl vinyl ether, stearate vinyl / allyl acetate, 2,2-dimethyl-2 vinyl octanoate / vinyl laurate, 2,2-dimethyl-2-allyl pentanoate / vinyl laurate, vinyl dimethyl propionate / vinyl stearate, dimethyl allyl propionate / stearate vinyl propionate / vinyl stearate, crosslinked with 0.2% divinyl benzene, vinyl dimethyl propionate / vinyl laurate, cross-linked with 0.2% divinyl benzene, vinyl acetate / octadecyl vinyl ether, crosslinked with 0.2% of tetraally loxyethane, vinyl acetate / allyl stearate, cross-linked with 0.2% divinyl benzene, vinyl acetate / octadecene-1 cross-linked with 0.2% divinyl benzene and allyl propionate / allyl stearate crosslinked with 0 2% divinyl benzene. iii) polyalkenes, copolymers of C2-C20 alkenes, in particular polybutene. iv) Polymers of natural origin, possibly modified, which may be chosen from shellac resin, sandarac gum, dammars, elemis and copals. polysaccharides comprising alkyl side chains (ether or ester), in particular alkylcelluloses having a saturated or unsaturated, linear or branched C1 to c8 alkyl radical, such as ethylcellulose and propylcellulose. The film-forming polymer of natural origin may be chosen in particular from cellulose polymers such as nitrocellulose, cellulose acetate, cellulose acetate butyrate and cellulose acetate propionate. For example, ethyl cellulose sold by Aqualon under the reference Aqualon Ethylcellulose N200, the aceto-butyrate cellulose marketed by Eastman Chemical under the reference CAB-381-0.5, the cellulose acetopropionate marketed by Eastman Chemical under the references CAP-482-20 and CAP-504-0.2. v) Polycondensates Among the polycondensates, mention may be made of nonionic polyurethanes, polyurethane-acrylics, polyurethanespolyvinylpyrrolidones, polyester-polyurethanes, polyether polyurethanes, polyureas, polyurea / polyurethanes, and mixtures thereof. The polyurethanes may be, for example, an aliphatic, cycloaliphatic or aromatic polyurethane copolymer of polyurea / polyurethane. The polyurethanes as defined in the invention can also be obtained from branched or unbranched polyesters or from alkyds comprising mobile hydrogens which are modified by means of a polyaddition with a diisocyanate and a bifunctional co-reactive compound. organic (for example dihydro, diamino or hydroxy-amino). Mention may also be made of polyesters, polyesteramides, fatty-chain polyesters, polyamides and epoxyester resins. The polyesters can be obtained in known manner by means of the polycondensation of aliphatic or aromatic diacids with aliphatic or aromatic diols or with polyols. Succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid or sebacic acid can be used as aliphatic diacids. Terephthalic acid or isophthalic acid, or even a derivative such as phthalic anhydride, can be used as aromatic diacids. Ethylene glycol, propylene glycol, diethylene glycol, neopentyl glycol, cyclohexanedimethanol and 4,4-N- (1-methylpropylidene) bisphenol can be used as aliphatic diols.

The polyesteramides can be obtained analogously to polyesters by means of the polycondensation of diacids with amino alcohols. The polyamides can be obtained in a manner analogous to polyesters, by means of the polycondensation of diacids with diamines.

As a particular polyester, mention may be made of aliphatic polyesters having C 4 -C 50 alkyl side chains or polyesters resulting from the condensation of fatty acid dimers, or even polyesters comprising a silicone segment in the form of a sequence , graft or terminal group, as defined in the patent application FR 0 113 920. b) Silicone compounds. The hydrophobic film-forming polymer may also be a polymer comprising at least one silicone part. In what follows, the term "silicone" or "polysiloxane" is intended to mean, in accordance with the general meaning, all organosilicon polymers or oligomers with a linear or cyclic, branched or crosslinked structure, of variable molecular weight, obtained by polymerization and / or polycondensation of silanes suitably functionalized, and essentially constituted by a repetition of main units in which the silicon atoms are connected to each other by oxygen atoms (siloxane bond Si-O-Si), optionally substituted hydrocarbon radicals being directly linked via a carbon atom on said silicon atoms. The most common hydrocarbon radicals are alkyl radicals, in particular C 1 -C 10 radicals and in particular methyl radicals, fluoroalkyl radicals, aryl radicals and in particular phenyl radicals, and alkenyl radicals and in particular vinyl radicals of other types of radicals likely to be present. linked either directly or via a hydrocarbon radical to the siloxane chain are in particular hydrogen, halogens and in particular chlorine, bromine or fluorine, thiols, alkoxy radicals, polyoxyalkylene radicals ( or polyethers), hydroxyl or hydroxyalkyl radicals, substituted or unsubstituted amino groups, amide groups, acyloxy or acyloxyalkyl radicals, hydroxyalkylamino or aminoalkyl radicals, this list not being of course in any way limiting ("organomodified" silicones). As hydrophobic film-forming polymer comprising at least one silicone part, mention may be made in particular of: i) silicone resins, generally soluble or swellable in silicone oils. These resins are crosslinked polyorganosiloxane polymers. The nomenclature of the silicone resins is known under the name of "MDTQ", the resin being described according to the different monomeric siloxane units that it comprises, each of the letters "MDTQ" characterizing a type of unit. • The letter M represents the monofunctional unit of formula (CH3) 3SiOi / 2, the silicon atom being connected to a single oxygen atom in the polymer comprising this unit. The letter D denotes a difunctional unit (CH3) 2SiO2 / 2 in which the silicon atom is connected to two oxygen atoms. The letter T represents a trifunctional unit of formula (CH3) SiO3 / 2. In the units M, D, As defined above, at least one of the methyl groups may be substituted with a group R other than the methyl group such as a hydrocarbon radical (in particular alkyl) having 2 to 10 carbon atoms, or a phenyl group or even a hydroxyl group. Finally, the letter Q means a tetrafunctional unit SiO4 / 2 in which the silicon atom is bonded to four hydrogen atoms themselves linked to the rest of the polymer.

Various resins of different properties can be obtained from these different units, the properties of these polymers varying depending on the type of monomers (or units), the type and number of substituted radicals, the length of the polymer chain, the degree of branching and size of hanging chains. By way of example of these silicone resins, mention may be made of: siloxysilicates which may be trimethylsiloxysilicate of formula [(CH 3) 3 X SiXO] XX (SiO 4/2) y (MQ units) in which x and y are integers ranging from from 50 to 80, polysilesquioxanes of formula (CH3SiO3 / 2) .X (T units) in which x is greater than 100 and at least one of the methyl radicals may be substituted with a group R as defined above, polymethylsilsesquioxanes which are polysilsesquioxanes in which none of the methyl radicals is substituted by another group. Such polymethylsilsesquioxanes are described in US 5,246,694, the contents of which are incorporated by reference. As examples of commercially available polymethylsilsesquioxane resins, mention may be made of those sold: by the company Wacker under the reference Resin MK such as Belsil PMS MK: polymer comprising repeating units CH3SiO312 (T units), which can also comprise up to 1% by weight of units (CH3) 2SiO212 (D units) and having an average molecular weight of about 10,000, - by SHIN-ETSU under the references KR-220L which are composed of T units of formula CH3SiO312 and have Si-OH end groups (silanol), under the reference KR-242A which comprise 98% of T units and 2% of dimethyl D units and have Si-OH end groups or else under the reference KR -251 comprising 88% of T units and 12% of dimethyl D units and have Si-OH end groups. As siloxysilicate resins, there may be mentioned trimethylsiloxysilicate (TMS) resins optionally in the form of powders. Such resins are sold under the reference SR1000 by the company General Electric or under the reference TMS 803 by the company Wacker. Mention may also be made of timethylsiloxysilicate resins sold in a solvent such as cyclomethicone, sold under the name "KF-7312J" by the company Shin-Etsu, "DC 749", "DC 593" by the company Dow Corning. ii) silicone polyamides of the polyorganosiloxane type such as those described in documents US Pat. No. 5,874,069, US Pat. No. 5,919,441, US Pat. No. 6,051,216 and US Pat. No. 5,981,680, the contents of which are incorporated herein by reference . iii) Grafted Silicone Compounds The composition comprising the hydrophobic film-forming polymer (s) may also contain a grafted silicone polymer. In the context of the invention, the term "grafted silicone polymer" is understood to mean a polymer comprising a polysiloxane portion and a portion consisting of a non-silicone organic chain, one of the two portions constituting the main chain of the polymer, the other being grafted onto said main chain. The grafted silicone polymers used in the cosmetic composition according to the invention are preferably chosen from the group consisting of polymers having a non-silicone organic skeleton grafted with monomers containing a polysiloxane, polymers with a polysiloxane backbone grafted with non-silicone organic monomers and their mixtures. The non-silicone organic monomers constituting the main chain of the grafted silicone polymer may be chosen from radical-polymerizable ethylenically unsaturated monomers, polycondensation-polymerizable monomers such as those forming polyamides, polyesters, polyurethanes, such as those of the oxazoline or caprolactone type. The polymers having a non-silicone organic skeleton grafted with monomers containing a polysiloxane, according to the invention, can be chosen from those described in patents US 4,693,935, US 4,728,571 and US 4,972,037 and the patent applications EP-AO 412,704, EP-AO 412,707, EP-A-0,640,105 and WO 95/00578. These are copolymers obtained by radical polymerization from ethylenically unsaturated monomers and silicone macromers having a terminal vinyl group or copolymers obtained by reacting a polyolefin comprising functionalized groups and a polysiloxane macromer having a functional group. terminal reactive with said functionalized groups.

The copolymer with a non-silicone organic skeleton grafted with monomers containing a polysiloxane may, for example, have the following structure: ## STR1 ## ## STR1 ## This polymer is marketed under the name KP 561 marketed by Shin Etsu. The non-silicone organic skeleton copolymer grafted with monomers containing a polysiloxane may also have the following structure: ## STR1 ## wherein: ## STR1 ## This polymer, Polysilicone 7, is marketed under the name SA70 by 3M. Other non-silicone organic skeleton copolymers grafted with polysiloxane-containing monomers may also be KP545, KP574 and KP575 marketed by Shin Etsu. As the grafted silicone compound, mention may also be made of the copolymer of isobutyl methacrylate / bis-hydroxypropyl dimethicone acrylate marketed by Grant Industrie under the name Granacrysil BMAS. EXAMPLES

According to the present invention, the at least one grafted silicone polymer having a polysiloxane backbone grafted with non-silicone organic monomers comprises a silicone main chain (or polysiloxane (° Si-O -), i) on which is grafted, at the interior of said chain as well as possibly to at least one of its ends, at least one organic group not comprising silicone. These silicone polymers are especially polydimethylsiloxanes (PDMS) on which are grafted, via a thiopropylene type connecting link, polymer units of the poly (meth) acrylate isobutyl type. Preferably, the number-average molecular weight of the silicone polymers having a polysiloxane backbone grafted with non-silicone organic monomers of the invention varies from about 10,000 to 1,000,000, and even more preferably from 10,000 to about 100,000. Preferably, the grafted silicone polymers are chosen from the group consisting of the polydimethylsiloxane grafted alkyl methacrylate copolymer, the copolymers of isobutyl methacrylate, acrylic acid and silicone macromer. iv) Polyurea / Urethane Silicones The copolymer of the invention may comprise, in addition to the polysiloxane / polyurea, other blocks of different patterns. In particular, mention may be made of polysiloxane / polyurea / polyurethane block terpolymers.

According to one variant, the copolymer contains only one or more siloxane blocks and one or more polyurea blocks. According to the invention, the copolymer can correspond to the general formula (IV): ## STR5 ## where R 1 is -N-C 1 -NYNC 1 II HH RROO -N 2 -Z Z -C-NYNC o HHO ab Wherein R represents a monovalent hydrocarbon radical, optionally substituted by fluorine or chlorine, having 1 to 20 carbon atoms, X represents a linear or non-linear hydrocarbon radical; an alkylene radical having 1 to 20 carbon atoms, in which non-neighboring methylene units may be replaced by -O- radicals, A represents an oxygen atom or an amino radical -NR '-, Z represents an atom of oxygen or an amino radical -NR'-, R 'represents hydrogen or an alkyl radical having 1 to 10 carbon atoms, Y represents a divalent hydrocarbon radical, optionally substituted by fluorine or chlorine, having 1 to 20 carbon atoms, carbon, D represents an alkylene radical, optionally substituted with fluorine, chl or C 1 -C 6 alkyl, or C 1 -C 6 alkyl ester having 1 to 700 carbon atoms, wherein non-neighboring methylene units may be substituted with -O-, -COO-, -OCO radicals. - or OCOO-, n is a number from 1 to 4000, a is a number of at least 1, b is a number from 0 to 40, c is a number from 0 to 30, and d is a number greater than 0. C provided that A represents in at least one of the units (a) an NH radical. Preferably, R represents a monovalent hydrocarbon radical with 1 to 6 carbon atoms, for example methyl, ethyl, vinyl and phenyl. According to a particular embodiment, R is an unsubstituted alkyl radical. Preferably, X represents an alkylene radical with 2 to 10 carbon atoms. Preferably, the alkylene radical X is not interrupted.

According to a particular embodiment, the group A in all the units (b) and (c), when present, represents NH. According to a particularly preferred embodiment, all the groups A represent an NH radical. Preferably, Z represents an oxygen atom or an NH radical. Preferably, Y represents a hydrocarbon radical comprising from 3 to 13 carbon atoms, which is preferably unsubstituted. Preferably, Y represents an aralkylene radical, alkylene, linear or cyclic.

Preferably, D represents an alkylene radical with at least 2, in particular at least 4 carbon atoms and at most 12 carbon atoms. Also preferably, D represents a polyoxyalkylene radical, in particular a polyoxyethylene or polyoxypropylene radical with at least 20, in particular at least 100 carbon atoms and at most 800, in particular at most 200 carbon atoms. Preferably, the radical D is not substituted. Preferably, n represents a number of at least 3, in particular at least 25 and preferably at most 800, in particular at most 400, particularly preferably at most 250. Preferably, a represents a number of of 50.

When b is different from 0, b preferably represents a number of at most 50, in particular at most 25. Preferably, c represents a number of at most 10, in particular at most 5.

The copolymers of the invention may be obtained according to the polymerization processes described in the patent application US 2004/0254325 or the application WO 03/014194. According to another embodiment, the copolymer is a polysiloxane / nonionic polyurea copolymer, that is to say that it does not contain an ionized or ionizable group. As an example of a copolymer, mention may be made of the copolymer dimethylpolysiloxane / urea, INCI name polyureadimethicone. Such a polymer can be obtained in particular by copolymerization of an alpha, omega-aminosilicone with a diisocyanate. Polymers meeting these characteristics are, for example, the products sold under the reference Wacker-Belsil UD 60 Wacker-Belsil UD 80, Wacker-Belsil UD 140 and Wacker-Belsil UD 200 by the company Wacker. v) Copolymers based on silicone resin and fluid silicone. These silicone copolymers are obtained by reaction of a silicone resin and a fluid silicone. Such copolymers are described, for example, in Silicone Pressure Sensitive Adhesive, Sobieski and Tangney, Handbook of Pressure Sensitive Adhesive Technology (D. Satas Ed.), Von Nostrand Reinhold, New York. In the copolymer, the silicone resin is present at a level of between 45 and 75% (based on the total weight of silicone) and the fluid silicone is present at a level of between 25 and 55%, with the sum of the percentages of silicone resin and fluid silicone which is equal to 100. Preferably, the silicone resin is present at a level of between 55 and 65% (based on the total weight of silicone) and the fluid silicone is present at a rate between 35 and 45%, with the sum of the percentages of silicone resin and fluid silicone which is equal to 100. Preferably, the silicone resin according to the invention is the condensation product of SiO 2 groups and R 3 groups. (SiO) 112 (triorganosilyl) for which each R group is independently selected from methyl, ethyl, propyl or vinyl radicals and for which the ratio of the SiO 2 functions to the R 3 (SiO) 112 functions of the silicone resin is from 0 to .6 to 0.9. Triorganosilyl groups useful for forming the silicone resin may be trimethylsilyl, triethylsilyl, methylmethylproprylsilyl, dimethylvinylsilyl and mixtures thereof. The trimethylsilyl group is preferred in the context of the invention. Preferably, the fluid silicone according to the invention is a terminal OH functional diorganopolysiloxane having a viscosity of between 100 and 100,000 cst at 25 ° C., for which the substituents of the diorganopolysiloxane are independently chosen from methyl, ethyl, propyl or vinyl radicals. The diorganosiloxances are preferably linear polymers. Examples of diorganopolysiloxane may be, but not limited to, polydimethylsiloxane, ethylmethylpolysiloxane, dimethylsiloxane and methylvinylsiloxane copolymer, and mixtures of such polymers or copolymers having OH ends. The preferred diorganopolysiloxane is a polydimethylsiloxane.

Examples of synthesis of such a copolymer are for example described in US5162410 or in CA711756. The preferred copolymers according to the invention are marketed by Dow Corning under the reference BIO-PSA, these BIO-PSA can be in two forms, standard or compatible amine, and being provided in different solvents with several ratio of silicone resin / fluid silicone. These include grades 7-4400, 7-4500, 7-4600. The particularly preferred BIO-PSA according to the invention is the grade 7-4400.

When the film-forming polymer according to the invention is dispersed in the organic solvent, the composition according to the invention advantageously comprises at least one stable dispersion of essentially spherical polymer particles of one or more polymers. Before their incorporation into the composition of the invention, the particles are generally dispersed in a physiologically acceptable liquid fatty phase, such as hydrocarbon oils or silicone oils. According to one embodiment, these dispersions are generally known as NAD (non-aqueous dispersions) of polymer as opposed to networks which are aqueous polymer dispersions. These dispersions may in particular be in the form of polymer nanoparticles in stable dispersion in said liquid organic phase. The nanoparticles are preferably of average size between 5 and 800 nm, and more preferably between 50 and 500 nm. However, it is possible to obtain polymer particle sizes of up to 1 m. The dispersion polymers that can be used in the composition of the invention preferably have a molecular weight ranging from about 2,000 to 10,000,000 and a Tg ranging from -100 ° C to 300 ° C and preferably from -10 ° C to 80 ° C. ° C. Among the film-forming polymers in dispersion, there may be mentioned homopolymers or radical copolymers, acrylic or vinyl, preferably having a Tg of less than or equal to 40 ° C and in particular ranging from 10 ° to 30 ° C, used alone or in mixture . According to one embodiment, the polymer particles are stabilized with a solid stabilizer at room temperature, which may be a block polymer, a graft polymer, and / or a random polymer, alone or as a mixture. The stabilization can be carried out by any known means, and in particular by direct addition of the stabilizing polymer during the polymerization.

When an aqueous dispersion of polymer particles is used, the solids content of said aqueous dispersion may be in the range of 3 to 60% by weight, and preferably 10 to 50%. The size of the polymer particles in aqueous dispersion may be between 10 and 500 nm, and it is preferably between 20 and 150 nm, to obtain a film having a significant gloss. However, particle sizes of up to one micron can be used. In a nonlimiting manner, the preferred hydrophobic film-forming polymers are chosen from polyurethanes; polyurethane-acrylics; polyureas; polyurea polyurethanes; polyester-polyurethanes; polyether polyurethanes; polyesters; polyesters amides; acrylic and / or vinyl polymers or copolymers; polyacrylamides; acrylic polyester; polymers or copolymers based on polyvinylpyrrolidone; silicone polymers; silicone polymers comprising polyurethane, polyurea or acrylic parts; silicone resins; copolymers based on silicone resin and dimethiconol; fluorinated polymers; celluloses and their mixtures. According to one particular embodiment, the hydrophobic film-forming polymer is chosen from acrylic polymers or copolymers, acrylic polyesters, polyvinylpyrrolidone-based polymers or copolymers, silicone resins, copolymers based on silicone resin and dimethiconol, silicone polymers comprising polyurethane, polyurea or acrylic parts; celluloses and their mixtures. The hydrophobic film-forming polymers according to the invention can be selected on their mechanical properties. Such properties can be flexibility, hardness, adhesion, persistence, resistance to water or other chemical compounds, resistance to abrasion. It is also possible to take advantage of the more versatile properties of block polymers (polymers consisting of two or more distinct polymer segments), graft polymers (polymers having a polymeric pendant chain grafted onto the backbone of the homopolymer or copolymer), heteropolymers (polymers comprising two or more different monomers). In copolymers, for example, the amount of hard and soft blocks has a significant impact on the properties of the polymer.

In addition it is possible to mix two or more polymers to achieve the desired property. Examples of combinations may be polyurethanes and polyacrylates, polyurethane and polyesters, two polymers having a silicone part, polyurethane and polymer having a silicone part.

According to a particular embodiment, the hydrophobic film-forming polymer is a nonionic polymer. According to another embodiment, the film-forming polymer is solid at 25 ° C., in that its flow is not observed with the naked eye after a period of one hour.

The hydrophobic film-forming polymer may be present in the composition in a content ranging from 0.1% to 40% by weight, relative to the total weight of the composition, preferably ranging from 0.1% to 30% by weight, preferably ranging from 0.5 to 20% by weight, preferably ranging from 1% to 20% by weight, and more preferably ranging from 1% to 15% by weight. When the polymer has a glass transition temperature that is too high for the desired use, a plasticizer can be added to lower this temperature of the mixture used. The plasticizer may be chosen from the plasticizers usually used in the field of application, and in particular from the compounds which may be solvents for the polymer. Preferably, the plasticizer has a molecular mass less than or equal to 5000 g / mol, preferably less than or equal to 2000 g / mol, preferably less than or equal to 1000 g / mol, and more preferably less than or equal to 900 g / mol . The plasticizer advantageously has a molecular mass greater than or equal to 100 g / mol.

Thus, the composition may further comprise one or more plasticizers. In particular, mention may be made, alone or as a mixture, of the usual plasticizers, such as: glycols and their derivatives, such as diethylene glycol ethyl ether, diethylene glycol methyl ether, diethylene glycol butyl ether or else diethylene glycol hexyl ether, ethylene glycol ethyl ether, ethylene glycol butyl ether, ethylene glycol hexyl ether; polyethylene glycols, polypropylene glycols, polyethylene glycol-polypropylene glycol copolymers and mixtures thereof, in particular polypropylene glycols of high molecular weight, for example having a molecular weight ranging from 500 to 15,000, such as, for example, glycol esters; ; propylene glycol derivatives and in particular propylene glycol phenyl ether, propylene glycol diacetate, dipropylene glycol ethyl ether, tripropylene glycol methyl ether and diethylene glycol methyl ether, dipropylene glycol butyl ether. Such compounds are marketed by Dow Chemical under the names Dowanol PPH and Dowanol DPnB. esters of acids, in particular carboxylic acids, such as citrates, phthalates, adipates, carbonates, tartrates, phosphates, sebacates; the esters resulting from the reaction of a monocarboxylic acid of formula R11COOH with a diol of formula HOR12OH with R11 and R12, which are identical or different, represent a hydrocarbon chain, preferably comprising from 3 to 15 carbon atoms, linear, branched or cyclic, saturated or unsaturated optionally comprising one or more heteroatoms such as N, O, S, in particular the monoester resulting from the reaction of isobutyric acid and octanediol such as trimethyl-2,2,4-pentanediol-1 , 3, such as that marketed under the reference TEXANOL Ester Alcohol by Eastman Chemical, - oxyethylenated derivatives, such as oxyethylenated oils, in particular vegetable oils, such as castor oil; - their mixtures. More particularly, the plasticizer may be chosen from esters of at least one carboxylic acid comprising 1 to 7 carbon atoms and a polyol comprising at least 4 hydroxyl groups.

The polyol according to the invention may be an ose-polyhydroxyaldehyde (aldose) or polyhydroxyketone (ketose) cyclized or not. The polyol is preferably a cyclized monosaccharide. The polyol may be a mono- or polysaccharide comprising from 1 to 10 atoms, preferably from 1 to 4, more preferably one or two monosaccharides. The polyol may be selected from erythritol, xylitol, sorbitol, glucose, sucrose, lactose, maltose. The polyol according to the invention is preferably a disaccharide. Among the disaccharides, mention may be made of sucrose (also called alpha-D-glucopyranosyl- (1-2) -beta-D-fructofuranose), lactose (also called beta-D-galactopyranosyl- (1-4) -beta D-glucopyranose) and maltose (also known as alpha-D-glucopyranosyl- (1-4) -beta-D-glucopyranose), and preferably sucrose.

The ester according to the invention may consist of a polyol esterified with at least two different monocarboxylic acids, or with at least three different monocarboxylic acids. The ester according to the invention may be a copolymer of two esters, in particular a copolymer of i) a sucrose substituted with benzoyl groups and ii) a saccharose substituted with acetyl and / or isobutyryl groups. The carboxylic acid is preferably a monocarboxylic acid comprising from 1 to 7 carbon atoms, preferably from 1 to 5 carbon atoms, for example chosen from acetic acid, n-propanoic acid, isopropanoic acid, n-butanoic acid, isobutanoic acid and tert-butanoic acid. , n-pentanoic and benzoic. The ester can be obtained from at least two different monocarboxylic acids. According to one embodiment, the acid is an unsubstituted linear or branched acid.

The acid is preferably selected from acetic acid, isobutyric acid, benzoic acid, and mixtures thereof, and more preferably. According to a preferred embodiment, the ester is sucrose hexa- (2-methyl-propanoate) diacetate, such as that sold under the name "Sustane SAIB Food Grade Kosher" by the company Eastman Chemical. According to another embodiment, the plasticizer may be chosen from esters of aliphatic or aromatic polycarboxylic acid and of aliphatic or aromatic alcohol comprising from 1 to 10 carbon atoms. The aliphatic or aromatic alcohol comprises from 1 to 10 carbon atoms, preferably from 1 to 8, for example from 1 to 6. It can be chosen from R 1 OH alcohols, such as R 1 represents methyl, ethyl, propyl, isopropyl, butyl, hexyl, ethylhexyl, decyl, isodecyl, benzyl, or alkyl-substituted benzyl having 1 to 3 carbon atoms, and mixtures thereof. The aliphatic or aromatic polycarboxylic acid preferably comprises from 3 to 12 carbon atoms, preferably from 3 to 10 carbon atoms, preferably from 3 to 8 carbon atoms, for example 6 or 8 carbon atoms. The aliphatic or aromatic polycarboxylic acid is advantageously chosen from dicarboxylic acids and tricarboxylic acids.

Among the aliphatic dicarboxylic acids, mention may be made of those of formula HOOC- (CH 2) n -COOH, in which n is an integer ranging from 1 to 10, preferably ranging from 2 to 8, for example equal to 2, 4, 6 or 8. The dicarboxylic acids selected from succinic acid, adipic acid and sebacic acid are preferred. Among the aromatic dicarboxylic acids, there may be mentioned phthalic acid. Among the tricarboxylic acids, there may be mentioned triacids which correspond to the formula COOH R COOH COOH in which R represents a group -H, -OH or -OCOR 'in which R' represents an alkyl group having from 1 to 6 carbon atoms . Preferably, R represents a group -OCOCH3. The tricarboxylic acid is in particular chosen from acetyl-citric acid, butyroyl-citric acid and citric acid.

Among the esters of tricarboxylic acid, it is possible to use esters derived from citric acid (or citrates) such as tributyl acetyl-citrate, triethyl acetyl-citrate, triethylhexyl acetyl-citrate, acetyl-trihexyl citrate, butyroyl-trihexyl citrate, triisodecyl citrate, triisopropyl citrate, tributyl citrate and tri (2-ethylhexyl) citrate. As commercial references of plasticizers mentioned above, mention may be made of the Citroflex range marketed by Vertellus, notably Citroflex A4 and Citroflex C2. Among the esters of adipic acid, mention may be made of dibutyl adipate and di (ethyl-2-hexyl) adipate. Among the esters of sebacic acid, mention may be made of dibutyl sebacate, di (2-ethylhexyl) sebacate, diethyl sebacate and diisopropyl sebacate. Among the esters of succinic acid, mention may be made of di (2-ethylhexyl) succinate and diethyl succinate. Among the esters of phthalic acid, mention may be made of butyl phthalate and benzyl, dibutyl phthalate, diethylhexyl phthalate, diethyl phthalate and dimethyl phthalate. Advantageously, the plasticizer may be present in the composition in a content such that the weight ratio between the hydrophobic film-forming polymer and the plasticizer is between 0.5 and 100, preferably between 1 and 50, preferably between 1 and 10. The composition of the invention containing the hydrophobic film-forming polymer or polymers comprises one or more pigments.

By pigment is meant all the pigments bringing color to the keratin materials. Their solubility in water at 25 ° C and at atmospheric pressure (760 mmHg) is less than 0.05%, and preferably less than 0.01%. The pigments that may be used are chosen from organic and / or inorganic pigments known in the art, in particular those described in Kirk-Othmer's encyclopedia of chemical technology and in Ullmann's encyclopedia of industrial chemistry. These pigments can be in the form of powder or pigment paste. They can be coated or uncoated. The pigments may for example be chosen from inorganic pigments, organic pigments, lacquers, special effect pigments such as nacres or flakes, and mixtures thereof.

The pigment may be a mineral pigment. By mineral pigment is meant any pigment that meets the definition of the Ullmann encyclopedia in the inorganic pigment chapter. Among the inorganic pigments useful in the present invention, mention may be made of iron or chromium oxides, manganese violet, ultramarine blue, chromium hydrate, ferric blue and titanium oxide. The pigment may be an organic pigment. By organic pigment is meant any pigment that meets the definition of the Ullmann encyclopedia in the organic pigment chapter. The organic pigment may especially be chosen from nitroso compounds, nitro, azo, xanthene, quinoline, anthraquinone, phthalocyanine, metal complex type, isoindolinone, isoindoline, quinacridone, perinone, perylene, diketopyrrolopyrrole, thioindigo, dioxazine, triphenylmethane, quinophthalone.

In particular, the white or colored organic pigments can be chosen from carmine, carbon black, aniline black, azo yellow, quinacridone, phthalocyanine blue, sorghum red, blue pigments codified in the color. Index under the references Cl 42090, 69800, 69825, 73000, 74100, 74160, the yellow pigments codified in the Color Index under the references Cl 11680, 11710, 15985, 19140, 20040, 21100, 21108, 47000, 47005, the green pigments coded in the Color Index under the references Cl 61565, 61570, 74260, the orange pigments coded in the Color Index under the references CI 11725, 15510, 45370, 71105, the red pigments codified in the Color Index under the references CI 12085, 12120 , 12370, 12420, 12490, 14700, 15525, 15580, 15620, 15630, 15800, 15850, 15865, 15880, 17200, 26100, 45380, 45410, 58000, 73360, 73915, 75470, the pigments obtained by oxidative polymerization of indole derivatives , phenolic as they are dec The pigments according to the invention can also be in the form of composite pigments as described in patent EP 1 184 426. These composite pigments can be composed in particular of particles comprising a core. inorganic, at least one binder for fixing the organic pigments on the core, and at least one organic pigment at least partially covering the core. The organic pigment can also be a lacquer. By lacquer is meant dyes adsorbed on insoluble particles, the assembly thus obtained remaining insoluble during use. The inorganic substrates on which the dyes are adsorbed are, for example, alumina, silica, calcium and sodium borosilicate or calcium and aluminum borosilicate, and aluminum. Among the dyes, mention may be made of cochineal carmine. Mention may also be made of the dyes known under the following names: D & C Red 21 (CI 45,380), D & C Orange 5 (CI 45,370), D & C Red 27 (CI 45,410), D & C Orange 10 (IC 45,425), D & C Red 3 (CI 45,430), D & C Red 4 (CI 15,510), D & C Red 33 (CI 17,200), D & C Yellow 5 (CI 19,140), D & C Yellow 6 (CI 15,985), D & C Green (CI 61,570), D & C Yellow 10 (CI 77,002), D & C Green 3 (CI 42,053), D & C Blue 1 ( CI 42,090).

As examples of lacquers, there may be mentioned the product known under the following name: D & C Red 7 (CI 15 850: 1). The pigment can also be a special effects pigment. Pigments with special effects means pigments which generally create a colored appearance (characterized by a certain nuance, a certain liveliness and a certain clarity) which is non-uniform and changeable according to the conditions of observation (light, temperature , observation angles ...). They are thus opposed to colored pigments that provide a uniform opaque, semitransparent or transparent uniform tint.

There are several types of special effects pigments, those with a low refractive index such as fluorescent, photochromic or thermochromic pigments, and those with a higher refractive index, such as nacres or flakes. By way of examples of special effect pigments, mention may be made of pearlescent pigments such as titanium mica coated with an iron oxide, mica coated with an iron oxide, mica coated with bismuth oxychloride, and titanium mica. coated with chromium oxide, titanium mica coated with an organic dye including the aforementioned type and pearlescent pigments based on bismuth oxychloride. It can also be mica particles on the surface of which are superimposed at least two successive layers of metal oxides and / or organic dyestuffs. The nacres may more particularly have a color or a yellow, pink, red, bronze, orange, brown, gold and / or coppery reflection. As an illustration of the nacres that may be used in the context of the present invention, mention may especially be made of the gold-colored nacres sold especially by ENGELHARD under the name Gold 222C (Cloisonne), Sparkle gold (Timica), Gold 4504 (Chromalite) and Monarch gold 233X (Cloisonne); bronze nacres sold especially by MERCK under the name Bronze Fine (17384) (Colorona) and Bronze (17353) (Colorona), by Eckart under the name Prestige Bronze and by ENGELHARD under the name Super bronze (Cloisonne ); orange nacres sold especially by the company Engelhard under the name Orange 363C (Cloisonne) and Orange MCR 101 (Cosmica) and by the company Merck under the name Passion Orange (Colorona) and Matte Orange (17449) (Microna); brown-colored pearlescent agents marketed by Engelhard under the name Nu-antique copper 340XB (Cloisonne) and Brown CL4509 (Chromalite); nacres with a copper sheen sold especially by Engelhard under the name Copper 340A (Timica) and by Eckart under the name Prestige Copper; the nacres with a red glint sold especially by MERCK under the name Sienna fine (17386) (Colorona); yellow-colored pearlescent agents marketed by ENGELHARD under the name Yellow (4502) (Chromalite); the red-colored pearlescent agents with a gold glint sold especially by ENGELHARD under the name Sunstone G012 (Gemtone); the black nacres with gold reflection sold by the company Engelhard under the name Nu antique bronze 240 AB (Timica), the blue nacres sold especially by the company Merck under the name Matte Blue (17433) (Microna), Dark Blue (117324) (Colorona), the white nacres with silvery reflection sold by the company Merck under the name Xirona Silver and the golden-green orange-colored mother-of-pearl marketed by the company Merck under the name Indian summer (Xirona) and their mixtures. In addition to nacres on a mica support, it is possible to envisage multilayer pigments based on synthetic substrates such as alumina, silica, calcium and sodium borosilicate or calcium and aluminum borosilicate, and aluminum.

Non-fixed interference-effect pigments may also be mentioned, such as liquid crystals (Wacker's Helicones HC) and holographic interference flakes (Geometric Pigments or Spectra f / x by Spectratek). Special effect pigments also include fluorescent pigments, whether they are fluorescent substances in the light of day or that produce an ultraviolet fluorescence, phosphorescent pigments, photochromic pigments, thermochromic pigments and quantum dots, marketed for example by the Quantum Dots Corporation.

The variety of pigments that can be used in the present invention provides a rich palette of colors, as well as particular optical effects such as interferential metallic effects. The size of the pigment used in the cosmetic composition containing the hydrophobic film-forming polymer or polymers is generally between 10 nm and 200 μm, preferably between 20 nm and 80 μm, and more preferably between 30 nm and 50 μm. The pigments can be dispersed in the product by means of a dispersing agent.

The dispersing agent serves to protect the dispersed particles against agglomeration or flocculation. This dispersing agent may be a surfactant, an oligomer, a polymer or a mixture of several of them, bearing one or more functionalities having a strong affinity for the surface of the particles to be dispersed. In particular, they can cling physically or chemically to the surface of the pigments. These dispersants have, in addition, at least one functional group compatible or soluble in the continuous medium. In particular, the esters of 12-hydroxystearic acid, in particular of C 8 to C 20 fatty acid, and of polyol, such as glycerol or diglycerol, such as poly (12-hydroxystearic acid) stearate, are used. molecular weight of about 750 g / mol, such as the product sold under the name Solsperse 21 000 by the company Avecia, the 2-polyglyceryl dipolyhydroxystearate (CTFA name) sold under the reference Dehymyls PGPH by Henkel or the polyhydroxystearic acid such as than that sold under the reference Arlacel P100 by Uniqema and their mixtures. As another dispersant that can be used in the compositions of the invention, mention may be made of the quaternary ammonium derivatives of polycondensed fatty acids, such as the Solsperse 17 000 sold by the company Avecia, the poly dimethylsiloxane / oxypropylene mixtures such as those sold by the Dow Company. Corning under the references DC2-5185, DC2-5225 C. The pigments used in the composition containing the hydrophobic film-forming polymer (s) can be surface-treated with an organic agent. Thus, the previously surface-treated pigments useful in the context of the invention are pigments which have undergone totally or partially a chemical, electronic, electro-chemical, mechanical-chemical or mechanical surface treatment with an organic agent such as those described in particular in Cosmetics and Toiletries, February 1990, Vol. 105, p. 53-64 before being dispersed in the composition according to the invention. These organic agents may be, for example, chosen from amino acids; waxes, for example carnauba wax and beeswax; fatty acids, fatty alcohols and their derivatives, such as stearic acid, hydroxystearic acid, stearyl alcohol, hydroxystearyl alcohol, lauric acid and their derivatives; anionic surfactants; lecithins; sodium, potassium, magnesium, iron, titanium, zinc or aluminum salts of fatty acids, for example aluminum stearate or laurate; metal alkoxides; polysaccharides, for example chitosan, cellulose and its derivatives; polyethylene; (meth) acrylic polymers, for example polymethyl methacrylates; polymers and copolymers containing acrylate units; the proteins ; alkanoamines; silicone compounds, for example silicones, polydimethylsiloxanes, alkoxysilanes, alkylsilanes, siloxysilicates; fluorinated organic compounds, for example perfluoroalkyl ethers; fluoro-silicone compounds.

Surface-treated pigments useful in the cosmetic composition containing the hydrophobic film-forming polymer (s) may also have been treated with a mixture of these compounds and / or have undergone several surface treatments.

The surface-treated pigments useful in the context of the present invention may be prepared according to surface treatment techniques well known to those skilled in the art or found as such in the trade. Preferably, the surface-treated pigments are covered by an organic layer. The organic agent with which the pigments are treated can be deposited on the pigments by solvent evaporation, chemical reaction between the molecules of the surfactant or creation of a covalent bond between the surfactant and the pigments.

The surface treatment can thus be carried out for example by chemical reaction of a surfactant with the surface of the pigments and creation of a covalent bond between the surfactant and the pigments or fillers. This method is described in particular in US Pat. No. 4,578,266.

Preferably, an organic agent bound to the pigments will be used covalently. The agent for the surface treatment may represent from 0.1 to 50% by weight of the total weight of the surface-treated pigments, preferably from 0.5 to 30% by weight, and even more preferably from 1 to 10% by weight. weight. Preferably, the surface treatments of the pigments are chosen from the following treatments: a PEG-silicone treatment such as the AQ surface treatment marketed by LCW; a Chitosan treatment such as the CTS surface treatment marketed by LCW; a Triethoxycaprylylsilane treatment such as the AS surface treatment marketed by LCW; a Methicone treatment such as the SI surface treatment marketed by LCW; a dimethicone treatment such as the Covasil 3.05 surface treatment marketed by LCW; a dimethicone / trimethylsiloxysilicate treatment such as the Covasil 4.05 surface treatment marketed by LCW; a Lauroyl Lysine treatment such as the LL surface treatment marketed by LCW; a Lauroyl Lysine Dimethicone treatment such as the LL / SI surface treatment marketed by LCW; a magnesium Myristate treatment such as the MM surface treatment marketed by LCW; an aluminum dimyristate treatment such as the MI surface treatment marketed by Miyoshi; a perfluoropolymethylisopropyl ether treatment such as the FHC surface treatment marketed by LCW; an Isostearyl Sebacate treatment such as the HS surface treatment marketed by Miyoshi; a Disodium Stearoyl Glutamate treatment such as the NAI surface treatment marketed by Miyoshi; a Dimethicone / Disodium Stearoyl Glutamate treatment such as the SA / NAI surface treatment marketed by Miyoshi; a perfluoroalkyl phosphate treatment such as the PF surface treatment marketed by Daito; an acrylate / dimethicone copolymer and perfluoroalkyl phosphate copolymer treatment such as the FSA surface treatment marketed by Daito; a Polymethylhydrogen siloxane / Perfluoroalkyl Phosphate treatment such as the FS01 surface treatment marketed by Daito, a Lauryl Lysine / Aluminum Tristearate treatment such as the LL-StAI surface treatment marketed by Daito; an Octyltriethylsilane treatment such as the OTS surface treatment marketed by Daito; an Octyltriethylsilane / Perfluoroalkyl Phosphate treatment such as the FOTS surface treatment marketed by Daito; an Acrylate / Dimethicone Copolymer treatment such as the ASC surface treatment marketed by Daito; an Isopropyl Titanium Triisostearate treatment such as the ITT surface treatment marketed by Daito; a Cellulose Microcrystalline and Carboxymethyl Cellulose treatment, such as the AC surface treatment marketed by Daito, a Cellulose treatment such as the C2 surface treatment marketed by Daito; an Acrylate copolymer treatment such as the APD surface treatment marketed by Daito; A perfluoroalkyl phosphate / isopropyl titanium triisostearate treatment such as the PF + ITT surface treatment marketed by Daito. The composition containing the hydrophobic film-forming polymer (s) according to the present invention may further comprise one or more surface-treated pigments. Preferably the pigment is a mother-of-pearl. The pigment or pigments may be in a content ranging from 0.5 to 40% by weight, preferably ranging from 1 to 20% by weight, relative to the total weight of the composition comprising the hydrophobic film-forming polymer or polymers. . The composition comprising the hydrophobic film-forming polymer or polymers, the pigment or pigments further contains one or more volatile solvents. In the context of the invention, the term volatile solvent is understood to mean a compound which is liquid at ambient temperature (20 ° C.) and at atmospheric pressure and has a vapor pressure at 20 ° C. of greater than 0.1 mmHg and preferably between 0.1 and 300 mmHg, more preferably between 0.5 and 200 mmHg.

This volatile solvent may be water, a non-silicone organic solvent, a silicone organic solvent or mixtures thereof. As a volatile non-silicone organic solvent, mention may be made of: volatile C1-C4 alkanols such as ethanol or isopropanol; Volatile C5-C7 alkanes such as n-pentane, hexane, cyclopentane, 2,3-dimethylbutane, 2,2-dimethylbutane, 2-methylpentane or 3-methylpentane; Esters of liquid C1-C20 acids and of volatile C1-C8 alcohols such as methyl acetate, n-butyl acetate, ethyl acetate, propyl acetate, isopentyl acetate, ethyl 3-ethoxypopionate; Room temperature and volatile ketones such as methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, isophorone, cyclohexanone, acetone; Volatile ethers such as dimethoxymethane, diethoxyethane, diethyl ether; Volatile glycol ethers such as 2-butoxyethanol, butyl diglycol, diethylene glycol monomethyl ether, propylene glycol n-butyl ether, and propylene glycol monomethyl ether acetate. Volatile hydrocarbon oils such as volatile hydrocarbon oils having 8 to 16 carbon atoms and mixtures thereof, and in particular C8-C16 branched alkanes such as iso-alkanes (also called isoparaffins) C8-C16, isododecane; , isodecane, and for example the oils sold under the trade names Isopars or permetyls, and mixtures thereof. Mention may also be made of isohexyl or isodecyl neopentanoate. Volatile perfluoroalkanes C4-C10 such as dodecafluoropentane, tetradecafluorohexane, decafluoropentane volatile perfluorocycloalkyls such as perfluoromethylcyclopentane, 1,3-perfluorodimethylcyclohexane and perfluorodecalin, sold respectively under the names "Flutec PC1", "Flutec PC3" and "Flutec PC6" by F2 Chemicals, as well as perfluorodimethylcyclobutane and perfluoromorpholine. Volatile fluoroalkyl or heterofluoroalkyl compounds corresponding to the following formula: CH 3 - (CH 2) n - [Z] t - X - CF 3 in which t is 0 or 1; n is 0, 1, 2 or 3; X is a divalent perfluoroalkyl radical, linear or branched, having from 2 to 5 carbon atoms, and Z represents O, S, or NR, R being hydrogen, a radical (CH2) n-CH3 or (CF2) n- CF3, m being 2, 3, 4 or 5.

Among the volatile fluoroalkyl or heterofluoroalkyl compounds, there may be mentioned in particular the methoxynonafluorobutane sold under the name "MSX 4518", "HFE-7100" by the company 3M and the ethoxynonafluorobutane sold under the name "HFE-7200" by the Company 3M.

Preferably, the solvent is chosen such that its boiling point is below 200 ° C. According to a particular embodiment, the non-silicone organic solvent is chosen from ethanol, isopropanol, acetone and isododecane.

As a volatile silicone solvent, mention may be made of low viscosity silicone compounds chosen from linear or cyclic silicones having from 2 to 7 silicon atoms, these silicones optionally containing alkyl or alkoxy groups having from 1 to 10 carbon atoms, for example octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltri-siloxane, heptamethylethyltrisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, and mixtures thereof. According to a particular embodiment, the silicone compound is chosen from cyclopentadimethylsiloxane, dodecamethylcyclohexasiloxane, octamethyltrisiloxane and decamethyltetrasiloxane. By way of example, mention may be made of the decamethylcyclopentasiloxane sold under the name DC-245 by Dow Corning, the octamethyltrisiloxane sold under the name DC-200 Fluid 1 by Dow Corning and the decamethyltetrasiloxane sold under the name DC-200. 200 Fluid 1.5 cst by the company Dow Corning The volatile solvent (s) may be present in the composition comprising the hydrophobic film-forming polymer (s) in a content ranging from 0.1% to 95% by weight, relative to the total weight of the composition preferably from 1% to 90% by weight, and preferably ranging from 5% to 90% by weight, relative to the total weight of the composition.

The composition comprising the hydrophobic film-forming polymer (s) may furthermore contain other non-volatile organic solvents such as: non-volatile aromatic alcohols such as benzyl alcohol or phenoxyethanol; • esters of liquid C1-C20 acids and non-volatile C1-C8 alcohols such as isopropyl myristate; • ethylene carbonate, propylene carbonate; butylene carbonate; Non-volatile polyols such as glycerol, ethylene glycol, dipropylene glycol, butylene glycol, non-volatile glycol ethers such as diethylene glycol monoethyl ether, dipropylene glycol mono-butyl ether. Non-volatile hydrocarbon oils such as isohexadecane. C10-C30 non-volatile liquid fatty alcohols such as oleic alcohol, esters of C10-C30 fatty alcohols, such as C10-C30 fatty alcohol benzoates, and mixtures thereof; polybutene oil, isononyl isononanoate, isostearyl malate, pentaerythrityl tetraisostearate, tridecyl trimelate • Non-volatile perfluorinated solvents such as perfluoroperhydrophenanthrene sold under the name "Flutec PC11" by F2 Chemicals.

Nonvolatile silicones of low viscosity such as the polyvinyl dimethylsiloxane cst marketed by Do Corning under the name Dow Corning 200 Fluid 5 cst and poly dimethylsiloxane cst viscosity marketed by Do Corning under the name Dow Corning 200 Fluid 10 The composition comprising the hydrophobic film-forming polymer (s), the pigment (s) and the volatile solvent (s) may contain other colored or coloring species than pigments such as hydrophilic or hydrophobic direct dyes or dye precursors. In order to obtain a better spread of the composition comprising the hydrophobic film-forming polymer (s) and an improved cladding, said composition may also contain one or more polysiloxanes having a viscosity greater than 100 cst, preferably greater than 300 cst. The viscosity of these polysiloxanes can be measured according to ASTM D-445. Such polysiloxanes may be silicone oils, gums or resins, crosslinked silicones. The polysiloxane (s) that may be present are different from the hydrophobic film-forming polymers. Furthermore, the polysiloxane (s) that may be present in the composition are also different from the volatile silicone solvent. As polysiloxanes with a viscosity of greater than 100 cSt, mention may be made in particular of polydimethylsiloxanes; alkyldimethicones; polyphenylmethylsiloxanes such as phenyldimethicones, phenyltrimethicones, and vinylmethylmethicones; as well as silicones modified with aliphatic and / or aromatic groups, optionally fluorinated, or with functional groups such as hydroxyl, thiol and / or amine groups. Such polysiloxanes may be chosen from silicones of formula (V): ## STR2 ## in which: R 1, R 2, R 5 and R 6 are, together or separately, an alkyl radical having 1 to 6 carbon atoms, R3 and R4 are, together or separately, an alkyl radical having 1 to 6 carbon atoms, a vinyl radical, an aryl radical, an amine radical, a hydroxyl radical, X is an alkyl radical having from 1 to 6 carbon atoms, a hydroxyl radical, a vinyl radical, an amine radical, n and p being integers chosen so as to obtain a viscosity greater than 300 cst. By way of example, mention may be made of the following polydimethylsiloxanes: the substituents R 1 to R 6 and X represent a methyl group, such as that sold under the name Baysilicone TP 3898 by the company General Electric, and that sold under the name AK 500000 by the company Waker, where the substituents R1 to R6 and X represent a methyl group, p and n are such that the molecular weight is 120,000 g / mol, such as that sold under the name Dow Corning 200 Fluid 60000 CS by Dow Corning. o substituents R1 to R6 and X represent a methyl group, p and n are such that the molecular weight is 250,000 g / mol, such as that sold under the name Mirasil DM 500,000 by Rhodia and that sold under the name Dow Corning 200 Fluid 500,000 cst by the company Dow Corning. the substituents R 1 to R 6 represent a methyl group, the X group represents a hydroxyl group, n and p are such that the molecular weight of the polymer is 600 000 g / mol, such as that sold under the name SGM 36 by Dow Corning. dimethicones of the (polydimethylsiloxane) (methylvinylsiloxane) type such as SE63 marketed by GE BAYER Silicones, poly (dimethylsiloxane) (diphenyl) (methylvinylsiloxane) copolymers, and mixtures thereof. In the case where the polysiloxane comprises a fluorinated group, it is possible to choose the copolymers of the following structure: R SiùR 2 R 1 mn in which: R represents a linear or branched divalent alkyl group having 1 to 6 carbon atoms, preferably a divalent group methyl, ethyl, propyl or butyl, Rf represents a fluoroalkyl radical, especially a perfluoroalkyl radical, having 1 to 12 carbon atoms, preferably 1 to 9 carbon atoms, R1 represents, independently of one another, a radical C1-C20 alkyl, a hydroxyl radical, a phenyl radical, R2 represents R1 or Rf-m is chosen from 0 to 500, preferably from 0 to 200, and n is chosen from 1 to 1000, preferably from 1 to 500. Preferably, the groups R 1 are identical and represent a methyl radical. Such polysiloxanes are especially those marketed by Shin Etsu under the names 'FL-5', 'FL-10', 'X22-821' and 'X22-822' or 'FL-100', by Dow Corning under the name FS-1265 Fluid, by the company Phoenix Chemical under the R1 R1 range Pecosil FS under the names Pecosil FSL-150, Pecosil FSL-300, Pecosil FSH-150, Pecosil FSH-300, Pecosil FSU-150, Pecosil FSU-300. The weight-average molecular mass of the polysiloxane (s) can be between 1000 and 150000 g / mol, especially between 20 000 and 1 000 000 g / mol. The polysiloxane may be in the form of a resin. By the term resin is meant a three-dimensional structure crosslinked or not. Examples of polysiloxane resin include silsesquioxanes and siloxysilicates. In one embodiment of the invention, the polysiloxanes useful in the composition containing the hydrophobic film-forming polymer or polymers are soluble or dispersible in said composition. In one embodiment, the silicone resin is solid at 25 ° C.

The composition containing the hydrophobic film-forming polymer or polymers may also contain a crosslinked silicone such as a crosslinked elastomeric organopolysiloxane, a high molecular weight silicone compound having a three-dimensional structure with viscoelastic properties of a flexible solid material. These organopolysiloxanes can thus be in dry powder form, or in swollen form, in a solvent, the resulting product being generally a gel. These products may also be in dispersed form in an aqueous solution. The synthesis of these organopolysiloxanes is described in the following patents: Kobayashi Kose US 5266321, Toray Silicone US 4742142, Dow Corning Corp. US 5654362, and French Patent Application No. 2,864,784.

The elastomeric organopolysiloxanes used in the composition containing the hydrophobic film-forming polymer (s) may be partially or completely crosslinked. They are usually in the form of particles. In particular, the organopolysiloxane elastomer particles have a number average size ranging from 0.1 to 500 m, preferably from 3 to 200 m and better still from 3 to 50 m. These particles may be any shape and for example be spherical, flat or amorphous. The crosslinked organopolysiloxane obtained may be a non-emulsifying compound or an emulsifying compound. The term "non-emulsifying" defines crosslinked organopolysiloxanes not containing polyoxyalkylene units. The term "emulsifier" means crosslinked organopoysiloxane compounds having at least one polyoxyalkylene unit, especially polyoxyethylene or polyoxypropylene. The crosslinked organopolysiloxane particles may be transported in gel form consisting of a crosslinked organopolysiloxane included in at least one hydrocarbon oil and / or a silicone oil. In these gels, the organopolysiloxane particles are often non-spherical particles. The crosslinked organopolysiloxane particles may also be in the form of a powder, in particular in the form of a spherical powder. Non-emulsifying crosslinked organopolysiloxanes are in particular described in patents US4970252, US4987169, US 5412004, US5654362, US5760116, in the application JP-A-61-194009. As non-emulsifying crosslinked organopolysiloxanes, those sold under the names "KSG-6", "KSG-15", "KSG-16", "KSG-18", "KSG-31", "KSG-32" can be used. , "KSG-33", "KSG-41", "KSG-42", "KSG-43", "KSG-44" USG-103 by the company Shin Etsu, "DC 9040", "DC9041", "DC 9509 "," DC9505 "," DC 9506 "DC 9045 by the company Dow Corning," GRANSIL "by the company Grant Industries," SFE 839 "by the company General Electric. Advantageously, the crosslinked emulsifying organopolysiloxanes comprise polyoxyalkylene modified organopolysiloxanes formed from divinyl compounds, in particular polysiloxanes having at least two vinyl groups, reacting with Si-H bonds of a polysiloxane. Crosslinked emulsifying organopolysiloxanes are described in US Pat. As crosslinked emulsifying organopolysiloxanes, those sold under the names "KSG-21", "KSG-20", "KSG-30", "X-226146" by the company Shin Etsu, and "DC9010", "DC9011" can be used. by Dow Corning. The elastomeric crosslinked organopolysiloxane particles may also be in the form of an elastomeric crosslinked organopolysiloxane powder coated with silicone resin, in particular silsesquioxane resin, as described for example in patent US5538793. Such elastomers are sold under the names "KSP-100", "KSP-101", "KSP-102", "KSP-103", KSP-104 "," KSP-105 "by Shin Etsu.

When present, the amount of these silicone compounds is generally between 0.1% and 30% by weight, especially between 0.1% and 20% by weight and preferably between 0.1 and 10% by weight. The pre-treatment cosmetic composition and the composition comprising the hydrophobic film-forming polymer (s) may contain one or more thickening agents chosen from polymeric thickeners different from the hydrophobic film-forming polymers of the invention, mineral thickeners and mixtures thereof.

The thickener may be inorganic or organic, polymeric or non-polymeric. The thickener may be chosen to thicken an aqueous phase or a fatty phase of the composition according to the case. By thickener is meant a compound that modifies the rheology of the medium in which it is incorporated.

The aqueous medium thickener can be chosen from: - hydrophilic clays, - hydrophilic fumed silica, - water-soluble cellulosic thickeners, such as hydroxyethylcellulose, methylcellulose, hydroxypropylcellulose.

Among these, mention may in particular be made of the gums sold under the name Cellolize QP 4400 H by Amercol. nonionic guar gums comprising C1-C6 hydroxyalkyl groups. By way of example, mention may be made of hydroxymethyl, hydroxypropyl and hydroxybutyl groups. Such guar gums are sold, for example, under the trade names Jaguar HP8, Jaguar HP60, Jaguar HP120, Jaguar HP105 by the company Mehhall or under the name GALACTASOL 40H4FD2 by AQUALON. carrageenans - carob, scleroglucan, gellan, rhamsan, karaya gums - alginates, maltodextrins, starch and its derivatives, hyaluronic acid and its salts, poly (metha) crylates glyceryl sold under the names "Hispagel" or "Lubragel" by the companies Hispano Quimica or Guardian, - polyvinyl alcohol, - crosslinked polymers and copolymers of acrylamide, such as those sold under the names "PAS 5161 "or" Bozepol C "by Hoechst," Sepigel 305 "by Seppic by Allied Colloid, or - crosslinked homopolymers of methacryloyloxyethyltrimethylammonium chloride sold under the name" Salcare SC95 "by the company Allied Colloid . associative polymers and in particular associative polyurethanes. Such thickeners are especially described in applications EP-A-1400234, the contents of which are incorporated by reference.

The oily medium thickener may be chosen from: - organophilic clays, - hydrophobic pyrogenic silicas - alkylated guar gums (with C1-C6 alkyl group), such as those described in EP-A-708114; oil-forming polymers such as triblock or star polymers resulting from the polymerization or copolymerization of at least one monomer containing an ethylenic group, such as the polymers sold under the name Kraton; polymers having a weight average molecular weight of less than 100,000, comprising a) a polymeric backbone having hydrocarbon-based repeating units provided with at least one heteroatom, and optionally b) at least one pendant fatty chain and / or at least one terminally fatty chain optionally functionalized, having from 6 to 120 carbon atoms and being linked to these hydrocarbon-based units, as described in applications WOA-02/056847, WO-A-02/47619, the content of which is incorporated by reference ; in particular polyamide resins (especially comprising alkyl groups having from 12 to 22 carbon atoms) such as those described in US-A-5783657 whose contents are incorporated by reference. - The silicone polyamide resins as described in the application EP-A-1266647, in the French patent application filed under No. 0216039 whose content is incorporated by reference.

Such thickeners are especially described in applications EP-A-1400234, the contents of which are incorporated by reference. The thickener may be an organic gelling agent, that is to say an agent comprising at least one organic compound. The organogellators may be chosen from those described in patent application WO-A-03/105788, the contents of which are incorporated by reference. More specifically, the polymeric thickening agent is an amorphous polymer formed by polymerization of an olefin. The olefin may in particular be an ethylenically unsaturated elastomeric monomer. As an example of an olefin, mention may be made of ethylenic carbide monomers, especially having one or two ethylenic unsaturations, having from 2 to 5 carbon atoms, such as ethylene, propylene, butadiene and isoprene.

The polymeric thickening agent is capable of thickening or gelling the composition. By amorphous polymer is meant a polymer which does not have a crystalline form. The polymeric thickener may also be film-forming.

The polymeric thickening agent may in particular be a diblock, triblock, multiblock, radial or star copolymer, or mixtures thereof. Such polymeric thickeners are described in US-A-2002/005562 and in US-A-5,221,534. Advantageously, the polymeric thickening agent is an amorphous block copolymer of styrene and olefin. The polymeric thickening agent is preferably hydrogenated to reduce residual ethylenic unsaturations after polymerization of the monomers.

In particular, the polymeric thickening agent is a copolymer, optionally hydrogenated, with styrene blocks and with ethylene / C 3 -C 4 alkylene blocks. As the diblock copolymer, preferably hydrogenated, mention may be made of styrene-ethylene / propylene copolymers and styrene-ethylene / butadiene copolymers. Diblock polymers are sold in particular under the name Kraton G1701E by Kraton Polymers. As the triblock copolymer, preferably hydrogenated, mention may be made of styrene-ethylene / propylene-styrene copolymers, styrene-ethylene / butadiene-styrene copolymers, styrene-isoprene-styrene copolymers, and styrene-butadiene-styrene copolymers. Triblock polymers are sold in particular under the names Kraton G1650, Kraton G1652, Kraton D1101, Kraton D1102 and Kraton D1160 by Kraton Polymers.

It is also possible to use a mixture of styrene-butylene / ethylene-styrene triblock hydrogenated copolymer and hydrogenated ethylene-propylene-styrene star polymer, such a mixture being in particular in isododecane. Such mixtures are for example sold by PENRECO under the trade names VERSAGEL M5960 and VERSAGEL M5670. Advantageously, a diblock copolymer such as those described above, in particular a diblock copolymer of styrene-ethylene / propylene, is used as polymeric thickening agent. More specifically, organophilic clays are clays modified with chemical compounds that make the clay swellable. Clays are already well known products per se, which are described for example in the book "Clay Mineralogy, S.

Caillère, S. Hénin, M. Rautureau, 2nd edition 1982, Masson ", the teaching of which is hereby incorporated by reference.Clays are silicates containing a cation which can be chosen from among the calcium, magnesium, aluminum, sodium, potassium, lithium and their mixtures.

Examples of such products include clays of the smectite family such as montmorillonites, hectorites, bentonites, beidellites, saponites, as well as the family of vermiculites, stevensite, chlorites . These clays can be of natural or synthetic origin. Preferably, the clays are used which are cosmetically compatible and acceptable with the keratin materials. The organophilic clay may be selected from montmorrilonite, bentonite, hectorite, attapulgite, sepiolite, and mixtures thereof. The clay is preferably a bentonite or a hectorite.

These clays can be modified with a chemical compound chosen from quaternary amines, tertiary amines, amino acetates, imidazolines, amine soaps, fatty sulphates, alkyl aryl sulphonates, amine oxides, and mixtures thereof. As organophilic clays, mention may be made of quaternium-18 bentonites such as those sold under the names Bentone 3, Bentone 38, Bentone 38V by Rheox, Tixogel VP by United catalyst, Claytone 34, Claytone 40, Claytone XL by Southern Clay Company; stearalkonium bentonites such as those sold under the names Bentone 27 by Rheox, Tixogel LG by United Catalyst, Claytone AF, Claytone APA by Southern Clay; quaternium-18 / benzalkonium bentonite such as those sold under the names Claytone HT, Claytone PS by Southern Clay.

The fumed silicas can be obtained by high temperature hydrolysis of a volatile silicon compound in an oxyhydrogen flame, producing a finely divided silica. This method makes it possible in particular to obtain hydrophilic silicas which have a large number of silanol groups on their surface. Such hydrophilic silicas are, for example, sold under the names "AEROSIL 130", "AEROSIL 200", "AEROSIL 255", "AEROSIL 300", "AEROSIL 380" by the company Degussa, "CAB-O-SIL HS-5" , "CAB-O-SIL EH-5", "CAB-O-SIL LM-130", "CAB-O-SIL MS-55", "CAB-O-SIL M-5" by Cabot.

It is possible to chemically modify the surface of said silica, by chemical reaction generating a decrease in the number of silanol groups. In particular, it is possible to substitute silanol groups with hydrophobic groups: a hydrophobic silica is then obtained. The hydrophobic groups may be: trimethylsiloxyl groups, which are especially obtained by treatment of fumed silica in the presence of hexamethyldisilazane. Silicas thus treated are called "silica silylate" according to the CTFA (6th edition, 1995). They are for example marketed under the references "AEROSIL R812" by the company Degussa, "CAB-O-SIL TS-530" by the company Cabot. - Dimethylsilyloxyl or polydimethylsiloxane groups, which are obtained in particular by treatment of fumed silica in the presence of polydimethylsiloxane or dimethyldichlorosilane. Silicas thus treated are called "Silica dimethyl silylate" according to the CTFA (heme edition, 1995). They are for example sold under the references "AEROSIL R972", "AEROSIL R974" by the company Degussa, "CAB-O-SIL TS-610", "CAB-O-SIL TS-720" by Cabot.

The fumed silica preferably has a particle size that may be nanometric to micrometric, for example ranging from about 5 to 200 nm. The mineral thickener is preferably a hectorite or organomodified bentonite. The thickener (s) are present in the composition in a total content ranging from 0.1 to 10% by weight relative to the total weight of the pretreatment composition or the composition comprising the hydrophobic film-forming polymer (s), preferably ranging from 0.5 to 7% by weight, and more preferably from 0.5 to 5% by weight. The compositions may also contain one or more cosmetic adjuvants chosen, for example, from reducing agents, fats, softeners, anti-foam agents, moisturizing agents, UV filters, mineral colloids, peptizers, solubilizers perfumes, anionic, cationic, nonionic or amphoteric surfactants, proteins, vitamins, propellants, oxyethylenated waxes or not, paraffins, C10-C30 fatty acids such as stearic acid, lauric acid, C 10 -C 30 fatty amides such as lauric diethanolamide. The above additives are generally present in an amount for each of them between 0.01 and 20% by weight relative to the weight of the composition.

Of course, one skilled in the art will take care to choose this or these optional additives in such a way that the advantageous properties intrinsically attached to the formation of the cladding according to the invention are not, or not substantially impaired. The composition containing the hydrophobic film-forming polymer or polymers may in particular be in the form of a suspension, a dispersion, a solution, a gel or an emulsion, in particular an oil-in-water (O / W) or water-in-oil emulsion ( E / H), or multiple (W / O / E or polyol / H / E or H / E / H), in the form of cream, foam, stick, dispersion of vesicles including ionic lipids or not, of biphase or multiphase lotion, spray, powder, paste. The composition may also be in the form of lacquer. Those skilled in the art may choose the appropriate dosage form, as well as its method of preparation, on the basis of its general knowledge, taking into account, on the one hand, the nature of the constituents used, in particular their solubility in the support, and on the other hand, of the application envisaged for the composition. Another subject of the invention is a process for the cosmetic treatment of keratinous fibers, such as the hair, which consists in applying a cosmetic pre-treatment composition comprising, in a cosmetically acceptable medium, one or more organic silicon compounds such as defined above, and then to apply a cosmetic composition comprising one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents as defined above. In particular, the treatment method consists in applying to said keratin fibers a cosmetic pre-treatment composition comprising, in a cosmetically acceptable medium, one or more organic silicon compounds as defined above, to be rinsed or not after a possible exposure time and to dry or not, then to apply a cosmetic composition comprising one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents as defined above. The compositions described above can be used on all types of hair, light or dark, natural or on hair having undergone a cosmetic treatment such as a permanent, a coloring, a fading or straightening. The cosmetic pre-treatment composition may be used on dry or wet hair. Preferably, the cosmetic pre-treatment composition is applied to clean hair. Preferably, the exposure time between the pretreatment composition and the cosmetic composition comprising the hydrophobic film-forming polymer or polymers may be between a few seconds and 60 minutes, preferably between 30 seconds and 15 minutes, and even more preferably between 1 minute. and 5 minutes. The pretreatment composition may be rinsed or not before application of the composition comprising the hydrophobic film-forming polymer (s). Preferably, the pre-treatment composition is rinsed, that is to say that its application is followed by a rinsing step. The cosmetic composition comprising the hydrophobic film-forming polymer (s), the pigment (s) and the volatile solvent (s) may be used on dry or wet hair. The choice of the presence of the drying step depends on the hydrophobic polymer used in the composition. The application on the hair of said composition may be implemented for example by means of a comb, a brush with a brush or fingers. According to a particular embodiment of the invention, the application of the composition is followed by drying at a temperature above 40 ° C. According to a particular embodiment, this temperature is greater than 45 ° C. According to a particular embodiment, this temperature is greater than 45 ° C. and less than 220 ° C. Drying can be carried out immediately after application or after a laying time ranging from 1 minute to 30 minutes. Preferably the hair is dried, in addition to a heat input, with a flow of air. This air flow during drying makes it possible to improve the individualization of the cladding. During the drying, a mechanical action on the locks can be exerted such as combing, brushing, the passage of the fingers. The drying step of the process of the invention can be carried out with a helmet, a hair dryer, a hair straightener, a climazon ... When the drying step is carried out with a helmet or a hair dryer, the drying temperature is between 40 and 110 degrees, preferably between 50 and 90 degrees.

When the drying step is carried out with a straightening iron, the drying temperature is between 110 and 220 degrees, preferably between 130 and 200 degrees. Once the drying is completed, a rinsing or a terminal shampoo may optionally be performed. The following examples serve to illustrate the present invention. EXAMPLE 1 The following compositions are made:

Compositions 1 Composition 1b 3-Aminopropyltriethoxysilane 10 g - Dow Corning Z-6011 Silane (*) 3-Aminopropylmethyldiethoxysilane - 10 g - marketed by Fluka under the reference 09309 N- (2-aminoethyl) -3- 10 g aminopropyltriethoxysilane marketed by ABCR under the reference AB153226 Lactic acid pH 10 pH 10 final final final pH Water Qs 100g Qs 100g Qs 100g Composition 2: Composition 2a 2b 2c 2d Bis [methyldiethoxysilylpropyl] amine marketed by ABCR under 2.5g -2, 5g - reference SIB 1620.0 Bis [3-triethoxysilylpropyl] amine - 2.5g - 2.5g Marketed by ABCR under the reference SIB 1824.5 Ethanol 65g 65g Qs 100 Qs g 100g Lactic acid pH 10 - pH 10 - final final 67 Acetic acid - pH 5 - final pH 5 Final Water Qs Qs - - 100g 100g Composition 3: BioPSA 7-4405 (BioPSA 7-4400 diluted to 40% in 20 g isododecane) (*) Polydimethylsiloxane mixture alpha-omega dihydroxyl / 10 g Cyclopentadimethylsiloxane (14,7 / 85,3) marketed under the name DC1501 Fluid (*) Polymethylsilsesquioxane marketed under the name Wacker 3 g Belsil PMS MK Powder by the company Wacker Nacre mica coated with brown iron oxide marketed by 10g Eckart under the name Prestige Bronze Distéardimonium hectorite (10%) and propylene carbonate ( 3%) 15 g in isododecane marketed by Elementis under the name Bentone Gel ISD V Isododecane Qs 100 g (*) marketed by Dow Corning

0.6 g of the composition 1a, 1b, 1c, 2a, 2b, 2c or 2d is applied to a lock of 1g of permed hair clean and wet. After 5 minutes of installation, the wick is rinsed. 0.6 g of the composition 3 is then applied to the wet wick. After 2 minutes of laying, the wick is dried with a hair dryer at a temperature of 80 ° C for 2 minutes. We obtain a colored wick whose hair is individualized and whose color is remanent to shampoo.

EXAMPLE 2 The following composition is produced Composition 4 Copolymer dimethylpolysiloxane / urea marketed 10 g under the reference Wacker-Belsil UD 60 by Wacker Polydimethylsiloxane marketed by Dow Corning 5 g under the reference Dow Corning 200 Fluid 60000 cs Nacre mica coated with iron oxide brown marketed 10 g by Eckart under the name Prestige Bronze Isopropanol 40 g Cyclopentadimethylsiloxane marketed Qs 100 g by Dow Corning under the name of DC245 Fluid 0.6 g of the composition 1a, 1b, 1c of the example is applied to a wick of 1 g of permed hair clean and moist. After 5 minutes of installation, the wick is rinsed and then dried with a hair dryer. 0.6 g of the composition 4 is then applied to the dry lock. After 2 minutes of laying, the wick is dried with a hair dryer at a temperature of 80 ° C for 2 minutes. We obtain a colored wick whose hair is individualized and whose color is remanent to shampoo. When only the composition 4 is applied without the pre-treatment, the shampoo resistance of the color is much worse.

EXAMPLE 3 The following composition is produced: Composition 5 Copolymers acrylates / C 12-22 alkylmethacrylate in 48% dispersion in water sold by Rohm 20 g and Haas under the reference SOLTEX OPT 7-3100 Gum Blend HIP Emulsion sold by 20 g Dow Corning Lactic Acid pH 10 Final Nacre mica coated with brown iron oxide 10g marketed by Eckart under the name Prestige Bronze Water Qs 100 g 0.6 g of the composition la, lb, the example 1 is applied on a wick 1g of permed hair clean and moist. After 5 minutes of laying, the wick is rinsed and then dried with a hair dryer. 0.6 g of the composition 5 is then applied to the dry lock. After 2 minutes of laying, the wick is dried with a hair dryer at a temperature of 80 ° C for 2 minutes. We obtain a colored wick whose hair is individualized and whose color is remanent to shampoo.

When only the composition 5 is applied without the pretreatment, the shampoo holding of the color is much worse. 705

Claims (15)

REVENDICATIONS1. Use of a cosmetic composition comprising, in a cosmetically acceptable medium, one or more organic silicon compounds, chosen from silanes comprising one, two or three silicon atoms, said organic silicon compounds further comprising one or more basic chemical functions and one or more hydroxyl or hydrolyzable groups per molecule in pre-treatment of a cosmetic composition containing one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents. 2. Use according to claim 1 wherein the basic chemical functions of the organic silicon compound are selected from primary, secondary or tertiary amines. 3. Use according to claim 1 or 2 wherein the hydrolyzable groups are selected from alkoxy, aryloxy and halogen groups. 4. Use according to any one of claims 1 to 3 wherein the one or more organic compounds of the silicon are chosen from the compounds of formula (I): ## STR1 ## in which: R 4 represents a halogen, a group OR 'or R'1; R5 is halogen, OR "or R'2, R6 is halogen, OR" or R'3; R1, R2, R3, R ', R ", R"', R'1, R'2, R'3 represent, independently of one another, a saturated or unsaturated hydrocarbon group, linear or branched, optionally bearing groups In addition, R 1, R 2, R ', R "and R"' may further denote hydrogen, and at least two of R 4, R 5 and R 6 are different from R '1, R' 2 and R '3. 5. Use according to claim 4 wherein the groups R1, R2, R ', R'1, R'2, R'3, R "and R"' are chosen from C1-C12 alkyl and C5 aryl radicals. C14 to C14, C18 to C14 alkyl (C1-C8) aryl, and C18 to C18 aryl (C1-C4) alkyl and R3 to C1 to C12 alkylene, optionally substituted by an amino, arylene group; C5-C14, (C1-C8) alkylene (C5-C14) arylene, and (C1-C4) arylene (C1-C8) alkylene. 6. Use according to any one of claims 1 to 3 wherein the one or more organosilicon compounds are chosen from compounds of formula (II) (R21O) x (R22) y Si - (B) p û [N R23 - (B ') p'] q û [N R'23 û (B '') p Si (R'22) y '(OR'21) x' (II) where R21, R22, R'21 and R Each independently represents a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted by one or more groups selected from ether, ester, amine, amide, carboxyl, hydroxyl and carbonyl groups, x is an integer varying from 1 to 3, y = 3-x, x 'is an integer varying from 1 to 3, y' = 3-x ', p = 0 or 1, p' = 0 or 1, p "= 0 or 1, q = 0ul, q '= 0 or 1, it being understood that at least q or q' is different from zero, B, B 'and B "each independently represent a divalent linear or branched C1-C20 alkylene radical, R23 and R'23 represent each independently a hydrogen atom e or a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more ether groups, C1-C20 alcohol ester, amine, carboxyl, alkoxysilane, C6-aryl ester; C30, hydroxyl or carbonyl, or an aromatic ring, heterocyclic or not, optionally substituted with one or more C3-C20 alcohol ester, amine, amide, carboxyl, alkoxysilane, hydroxyl, carbonyl or acyl groups. Use according to any one of the preceding claims wherein the organosilicon compound is 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane, N- (2-aminoethyl) -3-aminopropyltriethoxysilane and 3- (2-aminoethylamino). ) propyl-methyldiethoxysilane. 8. Use according to any one of the preceding claims wherein the organic silicon compound (s) are present in proportions ranging from 0.1 to 40% by weight, relative to the total weight of the pre-treatment cosmetic composition. 9. Use according to any one of the preceding claims wherein the medium cosmetically of the pretreatment composition consists of water, a cosmetically acceptable solvent or a mixture of water and one or more solvents. cosmetically acceptable, the cosmetically acceptable solvent or solvents may be chosen from lower alcohols in C1-C4, such as ethanol, isopropanol, polyols and ether polyols such as 2-butoxyethanol, propylene glycol, propylene monomethyl ether glycol, diethylene glycol monoethyl ether and monomethyl ether, as well as aromatic alcohols such as benzyl alcohol or phenoxyethanol, and mixtures thereof. 10. Use according to any one of the preceding claims wherein the hydrophobic film-forming polymer or polymers are chosen from polyurethanes; polyurethane-acrylics; polyureas; polyurea polyurethanes; polyester-polyurethanes; polyether polyurethanes; polyesters; polyester amides, acrylic polyesters; polymers or copolymers based on polyvinylpyrrolidone; acrylic and / or vinyl polymers or copolymers; polyacrylamides; silicone polymers comprising acrylic parts; silicone resins; polyurea / polyurethane silicones; copolymers based on silicone resin and dimethiconol; fluorinated polymers; celluloses and their mixtures. 11. Use according to any one of the preceding claims wherein the volatile solvent (s) is (are) chosen from water or an organic solvent chosen from ethanol, isopropanol, acetone, isododecane, decamethylcyclopentasiloxane, octamethyltrisiloxane and decamethyltetrasiloxane or mixtures thereof. 12. Use according to any one of the preceding claims wherein the pigment or pigments are chosen from inorganic pigments, organic pigments, lakes, special effect pigments such as nacres or flakes, and mixtures thereof. . 13. Use according to claim 12 wherein the pigment is a mother-of-pearl. 14. A process for the cosmetic treatment of keratinous fibers comprising applying a cosmetic pre-treatment composition comprising, in a cosmetically acceptable medium, one or more organic silicon compounds as defined according to any one of claims 1 to 7, then applying a cosmetic composition comprising one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents. 15. The treatment method as claimed in claim 14, comprising applying to a keratinous fiber a cosmetic pretreatment composition comprising, in a cosmetically acceptable medium, one or more organic silicon compounds as defined according to claim 1. to 10, to rinse or not after a possible exposure time, to dry or not, then to apply a composition a cosmetic composition comprising, one or more hydrophobic film-forming polymers, one or more pigments and one or more volatile solvents, followed by drying at a temperature above 40 ° C. 10