FR2954908A1 - METHODS OF COSMETIC TREATMENT AND KIT - Google Patents

Abstract

The present invention relates to a process for the cosmetic treatment of keratinous substances, making it possible to provide them, particularly in a durable and reversible manner, with interesting cosmetic properties. The invention also relates to a kit comprising said composition.

Description

The present invention relates to a process for the cosmetic treatment of keratinous substances, making it possible to provide them, particularly in a durable and reversible manner, with interesting cosmetic properties.

In the hair field, we always try to color or perming the hair, without degrading; it also seeks to improve the properties of keratin materials, especially colored or permed hair and to fight against damage, such as external aggression such as pollution and ultraviolet radiation or chemical attacks such as those caused by oxidative treatments , reducing or alkaline, coloring or permanent. Among the damage to the hair, there may be mentioned the loss of gloss, the increase in hydrophilicity, the loss or detachment of part of the scales, difficulty disentangling.

To improve the properties of the hair, it is known to use compositions containing cosmetic active ingredients to provide said keratin materials with all the benefits associated with these cosmetic active ingredients. This is also transposable to other keratin materials such as nails, eyelashes and skin.

However, the persistence and effectiveness of these assets are currently not sufficient, because they can be easily removed with shampoo; on the other hand, the associations between treating care and coloring compositions are not always easy, nor variable to infinity.

The object of the present invention is to propose a process for the cosmetic treatment of keratinous substances, making it possible to provide, in a durable and preferably reversible manner, cosmetic properties.

The subject of the present invention is therefore a process for the cosmetic treatment of keratin materials comprising the application to said materials: in a first step, of a cosmetic composition comprising at least one polymer bearing at least one unit of formula (Ia) and in a second step, a cosmetic composition comprising at least one cosmetic active having at least one unit of formula (Ia): CH 3 ONNHNH

Another subject of the invention is a process for the cosmetic treatment of keratin materials comprising the application to said materials of a cosmetic composition comprising at least one polymer bearing at least one unit of formula (Ia) and at least one active ingredient. A cosmetic having at least one unit of formula It has in fact been found that products comprising entities capable of forming physical interactions with one another, in particular products comprising units of formula (Ia), can bring cosmetic qualities to keratin materials, remanent way. These products are in particular characterized by the presence of at least one entity capable of giving 3, preferably 4, hydrogen bonds. Without being bound by the present explanation, it may be thought that the ureidopyrimidone entities of formula (Ia) are capable of generating a crosslinked network, by physical associations between molecules / polymers. As the crosslinking is a physical crosslinking, the persistence of the effect is possible while allowing the de-makeup of the products. The elimination of the deposit may consist in particular of a rinsing with a cleaning composition applied at room temperature or at a temperature above 25 ° C., or by the use of a make-up remover, a shampoo, or by using any known breaker hydrogen bonding.

Numerous compounds incorporating ureidopyrimidone (UPY) motifs have been described in the literature and studied for their self-assembly property by basic research laboratories. In the cosmetic field, mention may be made of WO02098377 which generally describes compounds with UPY motifs for cosmetic applications on the skin and the hair. Reference may also be made to WO2003032929 which describes the preparation of supramolecular polymers and their use in hair applications. Reference may also be made to WO2004016598, which describes the preparation of supramolecular polymers and their use in a variety of applications including cosmetic applications; or WO2005042641 which describes the preparation of supramolecular polymers, especially polyurethanes, and their use in various applications including cosmetic applications.

The present invention allows the reversible and durable deposition of a cosmetic active on the surface of the hair, eyelashes, nail or skin using a system that can be called Base Coat - Top Coat supramolecular. This Supramolecular Base Coat-Top Coat system consists, in particular: in a first step, of forming a durable film on the surface of the hair or of the skin, said film bearing patterns capable of associating with at least 3 hydrogen bonds to one another identical or different pattern; preferably, this unit is the ureidopyrimidone unit; in a second step, depositing on this film various active substances or cosmetics (dye, fatty chain, hydrophilic unit, silicone, UV filter for example) covalently bound to a unit capable of associating with at least 3 Hydrogen ligands with the patterns present on the film deposited in the previous step; preferably, this unit is the ureidopyrimidone unit.

The deposit finally obtained on the skin or the hair, following the execution of these two stages, will have the advantage of being resistant to aggression such as shampooing, disentangling, pollution, and being dissociated under the action. a stimulus specific to the destruction of supramolecular interactions (heat, alcoholic solvent for example). After dissociation, the durable film is always present and a new cosmetic active can then be deposited without requiring the reapplication of the film. Another advantage of the present invention lies in the possibility of associating different active agents / cosmetic compounds with each other, provided that they are functionalized by the ad hoc supramolecular pattern. The nature of the material thus formed on the surface of the skin or the hair can thus be diversified in order to adapt to the needs of the consumer.

Thanks to the present invention, it is possible in the hair field, to improve the properties of the hair, to fight against damage, to moisturize, to treat and strengthen or even repair keratin materials, and to provide them with softness, color and shine in a lasting way so that the effect remains perceptible after at least one shampoo.

By reinforcement of keratin materials is meant in particular an improvement in the mechanical properties which may result in: an increase in their rigidity, which gives them more resistance and body; or - a decrease in their deformation, in particular in wet conditions, which allows the hair to easily regain its initial shape once dried and results in an improvement of the hair dynamics; or else - better resistance to mechanical tensile forces applied to them, for example during combing, and which can lead to breakage of the hair; a decrease in its porosity or its swelling in the water. Indeed, it is known that a hair degraded by oxidizing, reducing or alkaline treatments is more porous than a non-degraded hair, which results in a faster diffusion and more heartwater and has the effect of increase in the diameter of the hair in a humid environment (The Science of Hair Station, p.416, 2nd edition, ed C. Bouillon, J Wilkinson, 2005).

The cosmetic treatment method according to the invention therefore consists in applying, for example to the natural hair or treated by a cosmetic treatment: at first, at least one polymer comprising at least two chemical units capable of associating with the at least 3 hydrogen bonds to another identical or different motif (base coat) - in a second step, at least one cosmetic active, in particular capillary, covalently bound to a unit capable of associating with at least 3 hydrogen bonds to patterns present on the polymer deposited in the previous step (topcoat). This second step can be repeated as many times as desired, the 'top-coats' can be moved and exchanged with 'top-coats' carrying other cosmetic active under the action of one or more stimuli apt to break the hydrogen bonds (thermal, action of a solvent for example). In order to 'move' the cosmetic active and cancel its effect, a top coat without cosmetic active can be used. It will preferably consist of a non-cosmetic pattern covalently linked to at least one unit capable of associating with at least 3 hydrogen bonds to the base coat pattern.

The chemical unit capable of associating with at least 3 hydrogen bonds, whether in the base coat and / or in the top coat, preferably comprises at least one unit of formula (Ia) (also called ureidopyrimidone).

The polymers bearing at least one unit of formula (Ia) that may be used in the cosmetic composition according to the invention (base coat) are defined below. N General Structure of the Polymers According to the Invention

The polymer that can be used in the context of the present invention therefore comprises: (a) a polymeric backbone -POL-, (b) at least one linking group (of formula (I)) linked to said polymeric backbone, bearing at least one pattern (la).

For the purposes of the invention, the term "polymeric backbone", also referred to as POL, is intended to mean a homopolymer or copolymer, hereinafter referred to as a polymer, comprising at least two identical or different repeating units, more preferably at least three repeating units. covalently linked. By "comprising at least two repeating units" is meant according to the present invention, a constituent unit of a homopolymer or copolymer resulting from the homopolymerization or copolymerization of at least two identical or different monomeric or oligomeric units. Said polymer may be linear, cyclic, branched, in particular star, dendrimer or grafted, or crosslinked; it can be a homopolymer or a copolymer that can be statistical, alternating, sequenced or otherwise.

Also preferably, the number-average molecular weight (Mn) of the polymers according to the invention is between 1,000 and 3,000,000, in particular 5,000 and 1,000,000, and preferably between 8,000 and 500,000. according to the invention may advantageously be in one of the following structures: - (co) linear polymer and functionalized at a, w with junction groups (I); - (linear) linear polymer having more than two junction groups (I), located in the chain and / or at one or both ends and / or branches; and / or - (co) branched polymer with joining groups (I) in the chain and / or branching and / or at one or both ends. It is clear that the polymer according to the invention may have only one of these structures, or a mixture of these structures, in all proportions. Preferred polymers according to the invention are polymers having 2 or more joining groups, preferably having 4 or at least 4 groups and more preferably 6 or at least 6 joining groups.

The polymeric backbone may be prepared by radical, anionic or cationic, polyaddition, polycondensation, ring opening, or any other (co) polymerization mechanism. Among the (co) polymerizable radical, anionic or cationic functions, mention may be made of ethylenic double bonds, whether or not activated, such as olefinic functions, vinyl, allylic, (meth) acrylic, (meth) acrylamide functional groups and their functional groups. combinations. Among the polymerizable functions by polyaddition or by polycondensation, mention may be made of hydroxyl functional groups, primary and secondary amines, esters, carboxylic acids and isocyanates, whether or not activated.

Among the functions which can be polymerized by anionic or cationic ring opening, mention may be made of cyclic esters, cyclic amides, cyclic carbonates and cyclic ethers. It is also possible to mention the reactions between the halides and the tertiary amines.

Among the ethylenically unsaturated monomers that may be used to form the polymer backbone, mention may be made of: a) (meth) acrylates of formula CH 2 CHCHCOOR 4 or CH 2 CC (CH 3) OOOR 4 in which R 4 represents: a hydrogen, a linear, cyclic or branched (in particular cycloalkyl or alkylcycloalkyl) alkyl group, in C1-C30, in which is (are) optionally intercalated one or more heteroatoms chosen from O, N, S and P, said an alkyl group which may, in addition, be optionally substituted by one or more substituents chosen from OH, halogens (Cl, Br, I and F) and Si (R 7) (R 8) groups, where R 7 and R 8, which may be identical or different, represent a C1-C6 alkyl group or a phenyl group. a C 3 to C 20 aryl group such as the phenyl group; a C4 to C30 aralkyl or alkylaryl group (C1 to C8 alkyl group) such as 2-phenylethyl or benzyl; - a C4-C12 heterocycloalkyl group containing one or more heteroatoms selected from O, N, P and S, the ring being aromatic or not; such as imidazole; a C 4 -C 30 alkylheterocycloalkyl or (C 1 -C 8) alkyl group, such as furfurylmethyl or tetrahydrofurfurylmethyl, said aryl or aralkyl groups possibly comprising one or more heteroatoms chosen from O, N, S and P, and / or being substituted with one or more substituents selected from hydroxyl groups, halogen atoms and linear or branched C1-C4 alkyl groups which themselves may comprise intercalated one or more heteroatoms selected from O, N, S and P and / or or which may be substituted by one or more substituents selected from hydroxyl groups, halogen atoms (Cl, Br, I and F), and Si (R7) (R8) groups, wherein R7 and R8, the same or different , represent a C1-C6 alkyl group, or a phenyl group. Mention may especially be made of (meth) acrylates of methyl, ethyl, ... to be completed

b) (meth) acrylamides of formula CH2 = CHCONR6R5 or CH2 = C (CH3) CONR6R5 in which R5 and R6, which are identical or different, have the same meanings as for the R4 groups above. Examples of (meth) acrylamide monomers are (meth) acrylamide, N-ethyl (meth) acrylamide, N-butylacrylamide, Nt-butylacrylamide, N-isopropylacrylamide, N, N-dimethyl (meth) acrylamide, N, N-dibutylacrylamide, N-octylacrylamide, N-dodecylacrylamide, undecylacrylamide, and N (2-hydroxypropylmethacrylamide).

c) vinyl monomers of formulas: CH2 = CH-R9, CH2 = CH-CH2-R9 or CH2 = C (CH3) -CH2-R9 in which R9 is a hydroxyl group, halogen (Cl or F), NH2, acetamide (-NHCOCH3), -OR10 where R10 represents a phenyl group or a C1-C12 alkyl group (vinyl ether); -OCORI1 (vinyl ester) wherein Rl1 represents: (i) a linear or branched C2-C12 alkyl group, (ii) a C3-C12 cycloalkyl group such as isobornyl, cyclohexyl, (iii) a C3 aryl group such as phenyl, (iv) a C 4 to C 10 aralkyl group (C 1 to C 8 alkyl group) such as 2-phenylethyl and benzyl, (v) a saturated or unsaturated heterocycloalkyl group, aromatic or otherwise, from 4 to 12 linkages containing one or more heteroatoms selected from O, N, and S, such as furfuryl or tetrahydrofurfuryl, (vi) a C1 to C4 alkylheterocycloalkyl group, such as furfurylmethyl or tetrahydrofurfurylmethyl, said alkyl, cycloalkyl, aryl, aralkyl, heterocycloalkyl or alkylheterocycloalkyls which may be optionally substituted by one or more substituents selected from hydroxyl groups, halogen atoms, and linear or branched C1 to C4 alkyl groups in which there may be intercalated one or more heteroatoms selected from O, N, S and P, said alkyl groups being furthermore possibly substituted by one or more substituents chosen from hydroxyl groups, halogen atoms (Cl, Br, I and F ) and the groups Si (R7) (R8) where R7 and R8, which may be identical or different, represent a C1-C6 alkyl group, or a phenyl group. Examples of vinyl monomers are vinylcyclohexane, styrene, N-vinylpyrrolidone and N-vinylcaprolactam. Examples of vinyl esters are vinyl acetate, vinyl propionate, vinyl butyrate, vinyl ethylhexanoate, vinyl neononanoate, and vinyl neododecanoate. Examples of vinyl ethers are vinyl methyl ether, vinyl ethyl ether and vinyl isobutyl ether.

d) ethylenically unsaturated monomers comprising at least one carboxylic acid (COOH), phosphonic acid (PO 3 H 2) or sulphonic acid (SO 3 H) function, such as those of formula: CH 2 = C (R 19) - (Z 1) z 1 - (Z 2) z 2 -Y in which - R19 is a hydrogen atom or a methyl radical, - Z1 is a divalent group chosen from -COO-, -CONH-, -CONCH3-, -OCO- and -O-, preferably Z1 is chosen from - COO- and -CONH-; z1 is 0 or 1, preferably 1; - Z2 is a divalent carbon radical, saturated or unsaturated, optionally aromatic, linear, branched or cyclic, from 1 to 30 carbon atoms, which may comprise 1 to 30 heteroatoms selected from 0, N, S, and P; z2 is 0 or 1, preferably 1; and Y is a group selected from -COOH, -SO3H, -OSO3H, -PO (OH) 2 and -O-OPO (OH) 2.

In particular, Z2 can be: a C1-C30 alkylene radical such as methylene, ethylene, propylene, n-butylene, isobutylene, tert-butylene, n-hexylene, n-octylene, n-dodecylene, n-octadecylene, n-tetradecylene, n-docosanylène; a phenylene radical -C6H4- (ortho, meta or para) optionally substituted with a C1-C12 alkyl radical optionally comprising 1 to 8 heteroatoms chosen from O, N, S, and P; or a benzene radical -C6H4-CH2- optionally substituted by a C1-C12 alkyl radical optionally comprising 1 to 8 hetero-roatoms selected from O, N, S, and P; a radical of formula -CH2-CH (OH) -, -CH2-CH2-CH (OH) -, -CH2-CH2-CH (NH2) -, - CH2-CH (NH2) -, -CH2-CH2- ## STR2 ## with R 'and R "representing a linear or branched C1-C18 alkyl, in particular methyl or ethyl.

There may be mentioned in particular acrylic acid, methacrylic acid, crotonic acid, itaconic acid, fumaric acid, maleic acid, diacrylic acid, dimethylfumaric acid, citraconic acid, acrylamidopropanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, styrene sulfonic acid, vinylbenzoic acid, vinylphosphoric acid, vinylsulfonic acid, vinylbenzene sulfonic acid, acrylamidoglycolic acid of formula CH 2 = CHCONHCH (OH) OOOH, vinylphosphonic acid; 2-carboxyethyl (meth) acrylate, sulfopropyl methacrylate or acrylate (CH2 = C (CH3) CO2 (CH2) 3SO3H), sulfoethyl methacrylate or acrylate and vinylmethylsulfone, 2- (methacryloyloxy) ethylphosphate of the formula CH2 = C (CH3) OOOC2H4OP (O) (OH) 2; diallyl maleate of formula C3H5-CO2-CH = CH-CO2-02H5; and their mixtures. e) ethylenically unsaturated monomers comprising at least one primary, secondary or tertiary amine function, in particular those of formula: ## STR1 ## in which - R19, Z1, Z2 z1 and z2 have the same meanings as in the preceding formula; and - X is either a group of formula -N-R17R18 with R17 and R18 representing, independently of one another, (i) a hydrogen atom; (ii) a linear, branched or cyclic, saturated or unsaturated, optionally aromatic, C1-C30 alkyl group, which may comprise 1-10 heteroatoms selected from O, N, S, and P; in particular a methyl, ethyl, propyl, isopropyl, n-butyl, t-butyl, isobutyl, lauryl or stearyl group; (iii) an alkylene oxide group of formula (R20O) yR21 with R20 representing a linear or branched C2-C4 alkyl, R21 is hydrogen or a linear or branched C2-C30 alkyl radical and y is between 1 and 250 inclusive; (iv) R 17 and R 18 may form with the nitrogen atom a saturated or unsaturated, optionally aromatic ring, comprising in total 5 to 8 atoms, and in particular 4 to 6 carbon atoms and / or 2 to 4 heteroatoms selected from O , S and N; said cycle being further capable of being fused with one or more other saturated or unsaturated rings, optionally aromatic, each comprising 5 to 7 atoms, and especially 4 to 7 carbon atoms and / or 2 to 4 heteroatoms selected from O, S; and N represents X represents a group -R'15-N-R'16- in which R'15 and R'16 form with the nitrogen atom a ring, saturated or unsaturated, optionally aromatic, comprising in total 5, 6, 7 or 8 atoms, and especially 4, 5 or 6 carbon atoms and / or 2 to 4 heteroatoms selected from O, S and N; said cycle being fusible with one or more other rings, saturated or unsaturated, optionally aromatic, each comprising 5, 6 or 7 atoms, and in particular 4, 5, 6, 7 or 8 carbon atoms and / or 2 to 4 selected heteroatoms Among O, S and N. Mention may be made in particular of the following monomers: 2-vinylpyridine, 4-vinylpyridine, allylamine and allylpyridine; aminoalkyl (meth) acrylates, such as [N, N-di (C 1 -C 4) alkylamino] (C 1 -C 6) alkyl (meth) acrylates or [N- (C 1 -C 4) (meth) acrylates ) alkylamino] (C1-C6) alkyl and in particular N, N-dimethylaminoethyl (meth) acrylate, N, N-diethylaminoethyl (meth) acrylate, 2-aminoethyl (meth) acrylate, (meth) acrylate 2- (N-tertbutylamino) ethyl; aminoalkyl (meth) acrylamides, such as [N, N-di (C1-C4) alkylamino] (C1-C6) alkyl (meth) acrylamides or [N- (C1-C4) (meth) acrylamides; amino) (C 1 -C 6) alkyl, and especially N, N-dimethylaminopropyl (meth) acrylamide, N, N-dimethylaminoethyl (meth) acrylamide; 3-aminopropyl (meth) acrylamide; vinylamine, vinylimidazole, 2- (diethylamino) ethylstyrene; N-vinylimidazole, N-vinyl-2-methylimidazole, N-vinylcarbazole; as well as their salts and / or their quaternized forms. Polymeric backbones that may also be mentioned include polydienes, polyesters, polycarbonates, polyacetals, polyoxyalkylenes, polythioethers, perfluoropolyethers, polyolefins, polyorganosiloxanes, vinyl polymers, poly (meth) acrylics, cellulose derivatives, polysaccharide derivatives, especially ethers and esters. 1 / polydienes, preferably hydrogenated, with hydroxyl ends and polyolefins with hydroxyl ends, especially chosen from homo and copolymers of polybutadiene, polyisoprene and poly (1,3-pentadiene). They preferably have a number-average molecular weight of less than 7000, preferably from 1000 to 5000, and have a functionality at the hydroxyl ends of 1.8 to 3 and preferably close to 2. These polydienes are used, preferably , hydrogenated. In particular, mention may be made of the hydroxylated polybutadienes marketed by ELF ATOCHEM under the trade marks POLY BD R-45HT and POLY BD R-20 LM, which will preferably be used for hydrogenation. It is also possible to use polyolefins, homopolymers or copolymers having hydroxyl ends, such as the end-capped polyisobutylene oligomers, and the copolymers sold by the company Mitsubishi under the tradename POLYTAIL with, in particular, those meeting with the formula: ## STR1 ## the polyesters initially with ends a, cw -OH, also called polyesters-polyols, in particular those obtained by reaction between: at least one polyhydric alcohol such as ethylene glycol, propylene glycol, diethylene glycol, neopentyl glycol, 1,4-butanediol, furan dimethanol, cyclohexane dimethanol, glycerol, trimethylpropane, pentaerythritol and mixtures thereof, and at least one carboxylic acid, preferably a dicarboxylic acid, or a derivative, especially an ester, such as succinic, glutamic, adipic acids and their dimethyl esters; and phthalic anhydride. They can also be obtained by polymerization of a lactone, for example caprolactone and a polyol. Polyester polyols obtained by condensation with a dimer and / or dimer-diol fatty acid may be mentioned. The dimeric fatty acids may be of formula: ## STR5 ## (0) -OH (CH 2) 8 CH 2 CH (CH 2) --C (O) OH CH 3 CH (CH 2) 4-CH 3 CH HH (CH 2) 4-CH 3 (O) OH (CH 2) 7

H HC CH ~CH CH (CH 2) 7-CH 2 (O) -OH

The dimers-diols are preferably those defined in the article by R. Hofer, European Coating Journal, March 2000, pages 26-37. They have the same chemical structures as the corresponding dimeric fatty acids, only the functionalities change. As stated in the article by R. Hofer, European Going Journal, March 2000, pages 26-37, the conversion of dimeric fatty acids to diol dimers can be made either by hydrogenation of methyl esters of dimer fatty acids or by direct dimerization of oleic alcohol. Polyester polyols obtained by reaction with natural or synthetic hydrocarbon oils bearing two to three hydroxyl groups (or epoxides) can also be mentioned. Preferred oils may carry two hydroxyl groups per chain, such as monoglycerides having the structure: ## STR2 ## wherein R 'is a linear or branched alkyl chain, for example glycerol monostearate. 3 / polycarbonates initially at ends a, w -OH, which can be obtained by the reaction between a diol which can be chosen from 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, diethylene glycol , and tetraethylene glycol, and a diarylcarbonate such as diphenylcarbonate, or phosgene. 4 / polyalkylene oxides initially at ends a, w -OH which can be obtained by polymerization of cyclic oxides, especially chosen from ethylene oxide, propylene oxide and tetrahydrofuran, or by addition of one or several cyclic oxides with polyfunctional initiators, especially chosen from water, ethylene glycol, diethylene glycol, cyclohexane diethanol, glycerol, trimethylolpropane, pentaerythritol, and disphenol A. Polyoxypropylene diols and triols, poly (oxyethylene-oxopropylene) diols and triols, obtained by simultaneous or sequential addition of ethylene oxide or propylene glycol to suitable initiators, are preferred polyalkylene oxides. Similarly, polytetramethylene glycols obtained by polymerization of tetrahydrofuran; and the oligomeric polyalkylene oxides bearing at least two amine groups at the POE chain ends are preferred polyalkylene oxides.

5 / polythioethers initially at ends a, w -OH, which can be obtained by condensation of thiodiglycol alone or with other glycols, or dicarboxylic acids, formaldehyde, aminoalcohols or aminocarboxylic acids.

6 / polyacetals initially at ends a, w -OH which can be obtained by reaction between a glycol, especially diethylene glycol, trimethylene glycol and hexanediol, and formaldehyde. Mention may also be made of polyacetals obtained by polymerization of cyclic acetals.

7 / polyorganosiloxanes initially carrying at least two reactive groups such as -OH, -NH2, -NHR, -SH and SiH, among which mention may be made of α, β-telechelic polyorga-40 nosiloxanes with OH, NH 2 ends and / or NHR, having the structure: ## STR2 ## wherein: x represents an integer from 0 to 100, Z represents -O-, or -NH-, or -NR-, R is as defined above, R3 is a group selected from linear or branched C1-C40 alkyl or alkoxy (preferably -CH3, -C2H5, n-C3H7 and iso-C3H7), phenyl groups, optionally substituted by 1 to 3 methyl or ethyl groups, the polyorganosiloxane chains, the linear or branched C1-C12 fluoroalkyl groups, and the linear or branched C1-C12 fluoroalkoxyethylene groups, R4 is chosen from divalent alkyl groups; C1-C60, C1-C60 oxyalkylene groups and containing from 0 to 3 ethylene oxide units, and mixtures thereof, and in wherein each atom directly attached to a hydroxyl group is a carbon atom.

Preferably, R4 is a divalent C1-C10 alkylene radical in which x is an integer such that the number-average molecular weight of the polysiloxane ranges from 300 to 10,000. Very preferably, the polydimethylsiloxanes have the structure: CH3 CH3 CH3 HZ (CH 2) a 50 Si -O Si O (H 2 C) ùZH I / x-2 3 H 3 H H 3 where a is an integer from 1 to 10, and Z is as defined above. Mention may also be made of polyorganosiloxanes for which R 4 is an oxyalkylene group comprising butylene oxide units, or propylene oxide units, or from 0 to 3 ethylene oxide units, in particular those with the structure: ## STR2 ## OC 3 H 6 Si O Si WhereCH 3 CH 3 CH 3 CH 3 where n varies from 2 to 6 independently, and x is an integer of 2 to 100.

Mention may also be made of polyorganosiloxanes with polyalkylene oxide grafts terminated with -OH groups (POE grafts or POE-PPO grafts), in particular of structure: ## STR1 ## wherein R3 is R3 R3 R5 R 3 in which R 5 is a polyalkylene monovalent oxide group with an -OH terminus, and R 6 is identical to R 3 or R 5, and may also be mentioned polyorganosiloxanes with lateral and / or terminal amine groups, in particular of structure: R 9 R 7 Si -O Si Wherein R 7 and R 9, which may be identical or different, are chosen from C 1 -C 22 alkyl, phenyl, naphthyl or polyoxyalkylene groups, at least one of the groups represented by the symbols R 10 and R 12 is a structure group H2N - (-R13-NH-) s -R14, where R12 and R14 each represent an alkylene group having 1 to 6 carbon atoms and s is 0 or 1, the other groups may be the same or different, and are C1-C22 alkyl groups, or phenyl, naphthyl or polyol groups xyalkylene, and m and n each represent a number at least 1.

Polyorganosiloxanes with lateral and / or terminal thiol groups SH may also be mentioned. Mention may also be made of polyorganosiloxanes with side groups and / or hydrogenosilane endpoints of structure: ## STR1 ##

Wherein R 13 represents either R 3 or H. Such polyorganosiloxanes may be used only for the attachment of junction groups (A) carrying a double bond ( meth) allyl.

8 / the perfluoropolyethers initially with hydroxyl ends and / or side groups, preferably perfluoro polyether diols of formula: ## STR2 ## in which: - the groups oxyperfluoroalkylene - (C; F2; O) -, (CyF2yO) - and - (CZF2zO) - are randomly distributed, or are grouped together in a chain, i, y and z are integers from 1 to 10, j and p are integers from 0 to 100, and k is an integer from 1 to 100, each Rf group is independently selected from divalent perfluoroalkyl radicals comprising 1 to 20 carbon atoms, each Q is independently selected from -C6H4, - C6H3Cl-, C2H40CH2-15 and CbH2b, each Q 'is independently selected from -C6H4, -C6H3Cl-, C2H40CH2- and CbH2b, and b is an integer of 1 to 20.

And / or vinyl or (meth) acrylic oligomers or polymers initially having -OH, -NH 2, -NHR, -SH reactive groups. These are preferably oligomers with a number average molecular weight of less than 10,000, obtained by copolymerization of one or more vinyl monomers, allylic, olefins, vinyl ethers, acids or (meth) acrylic esters or amides, with at least one monomer co -Reactive carrier of at least one group selected from -OH, -NH2 and -NHR. Mention may be made of homo and copolymers obtained by polymerization of hydroxyalkyl (meth) acrylates, such as 2-hydroxyethyl acrylate, or vinyl alcohol (obtained by hydrolysis of the vinyl acetate units of the polymer), or the allyl alcohol, vinylamine, or allylamine. It is also possible to use oligomers (homo and co) having reactive ends a, cw -OH. Polymerization of methacrylic monomers (acid, esters or amides) in the presence of 2-mercaptoethanol transfer agent (HS-CH 2 -CH 2 -OH) results in oligomers functionalized at each end a, cw by a hydroxyethylsulphide group: ## STR2 ## Sulfol S CH2 CH2OH CH3

where PoL is: ## STR2 ## wherein R 1 is a group selected from alkyl, aryl, aralkyl, alkenyl, alkoxy, alkoxyalkyl, alkoxyaryl or phenyl.

10 / cellulose derivatives (or polysaccharides), such as ethers hydroxyalkyl ethers and alkyl ethers cellulose (or guar), cellulose esters (such as acetates, propionates, butyrates and mixed esters), and nitrocellulose. 11 / di, tri, tetra and more generally polysaccharides or their derivatives, especially ethers and esters.

12 / hyperbranched or dendrimers, initially reactive ends of the type 10 -OH, -NH2, -NHR and -SH. These are molecular structures built around a generally versatile central pattern. Around this central motif are branched, concentric layers and according to a perfectly determined structure, branched chain extension units thus giving rise to symmetrical, monodispersed macromolecules having a well-defined chemical and stereochemical structure. Dendrimers of the polyaminoamine type are marketed for example under the name STARBUST® by the company DENDRITECH. The hyperbranched polymers are polycondensates, generally of the polyester, polyamide or polyethyleneamine type, obtained from multifunctional monomers, which have a tree structure similar to that of the dendrimers but much less regular than this one.

Fixation of Functional Groups on the Polymeric Backbone The chemical binding reactions mentioned here are not limiting but only given by way of illustration. According to a first embodiment, the linking groups are attached to polymeric backbones containing labile hydrogen groups such as -OH, -NH 2, -NHR or -SH, via functionalization of the linking group by an isocyanate. This reaction comprises the following steps: functionalization of group A with an isocyanate according to the reaction scheme: ## STR5 ## in addition to reaction with the polymer backbone comprising at least two groups with labile hydrogen such that -OH, -NH2, or -SH. By way of example, mention may be made of the ureidopyrimidone group binding reaction, for example 6-methylisocytosine, on a POL polymer backbone of HO-POL-OH or H2N-POL-NH2: 5NNH2O structure. It is also possible to carry out the reverse reaction by prefunctionalizing the labile hydrogen-containing polymer backbone such as -OH, NH 2, -NHR or -SH with a diisocyanate. . By way of example, mention may be made of the reaction of a polymeric backbone POL with a diisocyanate according to:

HO-POLOH + OCN-R-NCO OCN-R-NH-CO-POL-OC-NH-R-NCO + 2 N -NH 2 H c) NH-C-NH-R-NH-CO-POL-O These two reactions are described in the publication FOLMER et al., Adv. Mater, 12, 874-878 (2000). This publication also gives the conditions for fixing the ureidopyrimidone groups, for one or the other of the two routes described above, on polyoxyalkylene-type POL polymer backbones (for example: HO-POE / PPO-OH), polyester (eg butyl polyadipate with -OH end), polycarbonate (eg, copoly (ethylene / butylene) at the end a, w-OH). These two ureidopyrimidone uptake pathways can be transposed to all -POL- polymeric backbones having two or more -OH, -NH, -NHR, and -SH groups. The conditions for attachment of the 6-methylisocytosine groups via isophorone diisocyanate to POE / PPO block copolymers with OH ends are detailed in the publication of LANGE, J. Polymer Sci. Part A, Polym. Chem., 3657-70 (1999) and in WO98 / 14504. Alternatively, the linking groups can be attached to the polyorganosiloxanes by hydrolysis. This reaction comprises the following steps: functionalization of the linking group (A) with an allylic group -CH 2 -CH = CH 2 by direct synthesis, which leads to CH 2 = CH-CH 2 - (A); and then reaction with an organosiloxane carrying at least two hydrogenosilane groups -S; HH3H3 + 2Hu (SiOi) SiH CH3 CH3H2C CH CH2uA 1 n CH3 CH3 1 CH3 CH3 By way of example, mention may be made of the reaction of hydrosilylation described in the publication of SIVBESMA, Science, 278, 1601-04 (1997). These protective reactions, hydrosilylation then deprotection are detailed in the article by HIRSCHBERG, Macromolecules, 32, 2696-2705 (1999) and in the application W098 / 14504.

Among the polymers obtained by condensation which can be used in the context of the invention, mention may also be made of the polymers resulting from the reaction of: at least one monomer (a) which comprises at least two polymerizable groups , identical or different, chosen from ûN = C = O and ûN = C = S, or their activated or blocked form; at least one monomer (b) comprising at least two polymerizable labile hydrogen groups, identical or different, selected from OH, -SH, -NH 2 and NHR, with R representing a C 1 -C 6 alkyl group; at least one of the monomers (a) and / or (b) comprising at least one linking group, capable of forming at least 3 H bonds, preferably at least 4 H bonds and more preferably 4 H bonds; .

The monomer (a) can therefore be of formula Y = C = N-Ra-N = C = Y 'with Y, Y', which is identical or different, representing O or S; preferably Y = Y 'and even more preferably Y = Y' = O When in activated or blocked form, the monomer (a) may also be of formula BC (O) -NH-Ra-NH-C (0) ) -B 'as described in "Comprehensive Polymer Science", vol 5: step polymerization p421, Pergamon Press (1989). Thus, B and B 'may be, independently of one another, selected from: ## STR1 ## wherein a first family (a1) of monomers (a) is that in which Ra is a divalent radical, aliphatic, saturated or unsaturated, linear or branched, cyclic or otherwise, aromatic or not, and which comprises 1 to 40 carbon atoms, optionally comprising one or more heteroatoms chosen from O, S and / or N, and / or optionally substituted by one or more fluorine atoms and / or hydroxyl radicals, and mixtures thereof. The radical Ra may especially be a linear or branched C1-C30 alkyl group or a C4-C12 cycloalkyl group or a C4-C12 aryl group; optionally substituted with an ester and / or amide function. It may for example be of structure: - (CH2) c-, - (CRH) c and - (CRR ') c in which R and R', which may be identical or different, represent a linear or branched C1-C30 alkyl group and c is an integer of 1 to 20, preferably 1 to 12, or of structure: ## STR2 ##

CH3 CH3 wherein b is an integer from 0 to 3; as well as all combinations of these structures.

Among the particularly preferred divalent radicals Ra, mention may be made of the following radicals: 1,2-ethylene, 1,6-hexylene, 1,4-butylene, 1,6- (2,4,4-trimethylhexylene), 1, 4 (4-methylpentylene), 1,5-5- (5-methylhexylene), 1,6- (6-methylheptylene), 1,5- (2,2,5-trimethylhexylene), 1,7- (3,7- diméthyloctylène); 4,4'-methylenebis (cyclohexyl 1,4-cyclohexylene, 2,4-tolylene, 2,6-tolylene, 1,5-naphthylene, 4,4'-methylenebis (phenyl), tetramethyl xylylene, the divalent radical derived from isophorone.

Particularly preferred monomers (a) may be selected from the following: 1,4-diisocyanatobutane; 1,6-hexamethylenediisocyanate or 1,6-diisocyanatohexane 1,5-diisocyanato-2-methylpentane 1,4-diisocyanato-4-methylpentane, 1,6-diisocyanato-2,2,4-trimethylhexane, 1, 6-diisocyanato-2,4,4-trimethylhexane, 1,5-diisocyanato-5-methylhexane, 3 (4) -isocyanatomethyl-1-methylcyclohexylisocyanate 1,6-diisocyanato-6-methyl-heptane, 1,5- 2,2,5-trimethylhexane diisocyanato, 1,7-diisocyanato-3,7-dimethyloctane, 1-isocyanato-1,2,2-trimethyl-3- (2-isocyanato-ethyl) -cyclopentane, 1-isocyanato n-butyl-3- (4-isocyanatobut-1-yl) -cyclopentane; 1-isocyanato-1,2-dimethyl-3-ethyl-3-isocyanatométhylcyclopentane; 1-isocyanato-1-methyl-4- (4-isocyanatobut-2-yl) -cyclohexane, 1-isocyanato-1,4-dimethyl-4-isocyanatomethyl-cyclohexane, 1-isocyanato-1,3-dimethyl-3- isocyanatomethylcyclohexane, 1,3-bis (isocyanatomethyl) cyclohexane isophorone diisocyanate; 4,4'-methylenebis (cyclohexyl isocyanate) 1,4-diphenylene diisocyanate; tolylene 2,4-diisocyanate; tolylene 2,6-diisocyanate; 1,3-bis (isocyanatomethyl) benzene 4,4'-methylenebis (phenyl isocyanate) naphthalene diisocyanate; tetramethyl-1,3-xylylene diisocyanate.

These diisocyanates can of course be used alone or as a mixture of two or more diisocyanates. A second preferred family (a2) of monomers (a) is that in which the divalent radical Ra is a polymeric radical, in particular of the homopolymer or copolymer type, for example chosen from: - ethylenic copolymers such as polyolefins containing units selected from 1,2-butadiene; 1,4-butadiene; isoprene; ethylene; propylene; 1,2-butylene, 1,4-butylene; isobutylene; (meth) acrylic copolymers, (meth) acrylamide copolymers, vinyl copolymers, allyl copolymers and mixtures thereof. Thus, the vinyl / (meth) acrylate, vinyl / (meth) acrylamide, vinyl / (meth) acrylate / methacrylamide, olefinic / vinyl and (meth) acrylate / (meth) acrylamide copolymers are suitable for the invention; polyethers, perfluorinated or otherwise, of the polyethylene oxide type, polypropylene oxide, and their polyethylene oxide / propylene oxide copolymers, tetramethylene polyoxides and perfluoropolyethers; polythioethers; polyesters and especially polyesters based on adipic acid or terephthalic acid; polycaprolactone; poly (2-methyl-1,3-propylene adipate), poly- (2-methyl-1,3-propylene) glutarate; sulphonic polyesters; polylactides; polyamides; polyoxazolines such as poly (2-methyloxazoline) or poly (2-ethyloxazoline); siloxane copolymers, such as, for example, polysiloxanes consisting of -Si (R 4) (R 5) O- units in which (R 4) and (R 5), which may be identical or different, represent H or a linear or branched, cyclic carbon radical; or not, saturated or unsaturated, or aromatic, preferably a C1-C12 alkyl which may optionally comprise one or more, preferably 1 to 5, heteroatoms, which may be identical or different, chosen from: O, N, S, P, F and Si preferably O, N and S, and especially polydimethylsiloxanes (PDMS), and poly (methylphenylsiloxanes); copolymers of these different types of polymers, for example polysiloxane / polyethylene oxide copolymers, polyacetals; perfluorinated polycarbonates or not; - and their mixtures.

When Ra is a polymeric radical, it preferably has a weight average molecular weight (Mw) of between 500 and 30,000, more particularly between 700 and 25,000 and better still between 800 and 15,000.

Preferably, Ra may be chosen from functional polymers of: polyesters, more particularly based on adipic acid and / or terephthalic acid; poly (2-methyl-1,3-propylene adipate) and poly- (2-methyl-1,3-propylene) glutarate; polyethers and in particular tetramethylene polyoxides; siloxane copolymers; and poly (ethylene-butylene) and polybutadienes.

When Ra corresponds to a mixture of different polymers, the percentage of said different polymers may be chosen by those skilled in the art depending on the desired properties.

Preferably, the monomers (a) are of type (a1), alone or mixed with each other. However, it is also possible to have a mixture of monomers (a1), alone or as a mixture, and of monomers (a2) alone or as a mixture.

When the monomer (a) comprises at least one linking group, it may have the formula: ## STR1 ## in which R 1 R 1, R 2, identical or different, represent a divalent carbon radical chosen from an alkyl group linear or branched C1-C30 or a C4-C12 cycloalkyl group or a C4-C12 aryl group; optionally comprising 1 to 8 heteroatoms selected from O, N, S, F, Si and P; optionally substituted with an ester, amide or a C1-C12 alkyl radical; or a mixture of these groups; R2 being as previously defined for the joining group (A).

Preferably, the monomer (a) can be of formula: ## STR2 ## in which Rx1, Rx2, Rx3, which are identical or different, represent a divalent carbon radical chosen from a linear or branched C1-C30 alkyl group or a C4-C12 cycloalkyl group or a C4-C12 aryl group; or their mixtures.

The radicals Rx1, Rx2 and Rx3, independently of one another, may be preferentially chosen from the following radicals: methylene, 1,2-ethylene, 1,6-hexylene, 1,4-butylene, 1,6- (2,4,4-trimethylhexylene), 1,4- (4-methylpentylene), 1,5- (5-methylhexylene); 1,6- (6-méthylheptylène); 1,5- (2,2,5-trimethylhexylene), 1,7- (3,7-dimethyloctylene); 4,4'-méthylènebiscyclohexylène; 2-methyl-1,3-phenylene; 4-methyl-1,3-phenylene; 4,4'-biphenylenemethylene, 1,2-tolylene, 1,4-tolylene, 2,4-tolylene, 2,6-tolylene; 1,5-naphthylene; 4,4'-methylenebis (phenyl); tetramethyl xylylene; the divalent radical derived from isophorone.

In a particularly preferred manner, Rx1, Rx2 and Rx3 represent, independently of each other, - (CH2) 2-, - (CH2) 6-, -CH2CH (CH3) CH2C (CH3) (CH3) CH2CH2-, or a radical -isophorone-; and more preferably Rx1 and Rx3 are -isophorone- and Rx2 is Rx OHN-NH-Rx2 NCO20- (CH2) 2-, resulting in the following monomer (a): CH3 OCN NCO CH3 O / (CH2) 2 The polymer according to the invention further comprises at least one monomer (b) selected from the monomers (b1) and (b2) defined hereinafter; it can obviously include a mixture of monomers (b1) and (b2); monomers which both comprise at least two polymerizable groups, identical or different, selected from OH, SH, NH2 and NHR with R = C1-C6 alkyl.

The monomer (b1) may be of formula HX-Rb'-X'H, with X and X ', which may be identical or different, chosen from O, S, NH or NR, R representing a C1-C6 alkyl group. Preferably, in (b1), X and / or X '= O and preferentially X = X' = O. The divalent radical Rb 'preferably represents a divalent polymeric radical, in particular of the homopolymer or copolymer type, for example chosen from the functional copolymers dithiol, diamines, diols, aminoalcohol, the functions alcohol, amine and / or thiol being borne at the ends of the chain or along the skeleton; there may be mentioned especially as polymeric radical, the type-polyether radicals, perfluorinated or not, of the polyethylene oxide type, polypropylene oxide, and their polyethylene oxide / propylene oxide polypropylene copolymers, tetramethylene polyoxides; perfluoropolyethers and polythioethers; polylactides; polyesters, especially based on adipic acid or terephthalic acid; in particular polycaprolactone; poly (2-methyl-1,3-propylene adipate), poly- (2-methyl-1,3-propylene) glutarate; sulphonic polyesters; - polyamides; polyoxazolines such as poly (2-methyloxazoline), poly (2-ethyloxazoline); siloxane copolymers, such as, for example, polysiloxanes consisting of Si (R 4) (R 5) O 6 units in which (R 4) and (R 5), which may be identical or different, represent H or a linear or branched, cyclic carbon radical; or not, saturated or unsaturated, or aromatic, preferably C 1 -C 12 alkyl which may optionally comprise one or more, preferably 1 to 5, heteroatoms, which may be identical or different, chosen from: O, N, S, P, F and Si preferably O, N and S, and especially polydimethylsiloxanes (PDMS), and poly (methylphenylsiloxanes); polyacetals; ethylenic copolymers and especially (meth) acrylic copolymers, (meth) acrylamide copolymers, vinyl copolymers, allyl copolymers; thus, vinylic / (meth) acrylates, vinylic (meth) acrylamides, vinylic / (meth) acrylates / methacrylamides, olefinic / vinylic copolymers and (meth) acrylates / (meth) acrylamides are suitable for the invention; polyolefins comprising units selected from 1,2-butadiene; 1,4-butadiene; isoprene; ethylene; propylene; 1,2-butylene, 1,4-butylene; isobutylene; perfluorinated polycarbonates or not; copolymers of these different types of polymers, for example polysiloxane / polyethylene oxide copolymers, and mixtures thereof. The monomer (b1) preferably has a weight average molecular weight (Mw) of from 500 to 30,000, more preferably from 700 to 25,000 and more preferably from 800 to 15,000. When Rbl is a mixture of different polymers, the percentage of said different polymers can be chosen by the skilled person depending on the desired properties. Preferably, Rb 'may be chosen from functional polymers of: polyesters, more particularly based on adipic acid and / or terephthalic acid; and especially poly (2-methyl-1,3-propylene adipate) and poly- (2-methyl-1,3-propylene) glutarate; polyethers and in particular tetramethylene polyoxides, siloxane copolymers; and poly (ethylene-butylene) and polybutadienes.

The monomer (b2) can therefore be of formula HX-Rb2-X'H, with X and X ', which are identical or different, chosen from O, S, NH or NR, R representing a C1-C6 alkyl group. Preferably, in (b2), X and / or X '= O and preferentially X = X' = O. The divalent radical Rb2 preferably represents a divalent carbon radical having 1 to 40 carbon atoms, branched or unbranched, cyclic or otherwise, saturated or unsaturated, aromatic or otherwise, optionally comprising one or more heteroatoms selected from O, S , P and N, and / or optionally substituted with one or more fluorine and / or silicon atoms. The heteroatom (s), when present, may be inserted in the chain of said radical, or said radical may be substituted by one or more groups including them, such as hydroxyl or amino groups (NH 2, NHR 'or NR'R " with R 'and R ", identical or different, representing a linear or branched C1-C22 alkyl, optionally comprising 1 to 12 heteroatoms chosen from O, N, S, F, Si and P, in particular methyl or ethyl). Thus, Rb 2 may comprise: an alkylene radical having 1 to 40 carbon atoms or cycloalkylene having 3 to 16 carbon atoms, optionally substituted, with a C 1 -C 12 alkyl radical optionally comprising 1 to 8 heteroatoms chosen from O, N, S, F, Si and P such as methylene, ethylene, propylene, n-butylene, isobutylene, tert-butylene, nhexylene, n-octylene, n-dodecylene, n-octadecylene, n-tetradecylene, n-docosanylene; 2-ethylhexylene, cyclohexylene, cyclohexylemethylene, isophorone, - a C 1 -C 30 arylene radical such as a phenylene radical -C 6 H 4 - (ortho, meta or para) optionally substituted with a C 1 -C 12 alkyl radical optionally comprising 1 to Heteroatoms selected from O, N, S, F, Si and P; a benzylene radical -C6H4-CH2- optionally substituted with a C1-C12 alkyl radical optionally comprising 1 to 8 heteroatoms chosen from O, N, S, F, Si and P; a C1 to C30 alkylarylene or arylalkylene radical, preferably a C2 to C12 radical, a radical of formula: -O-CO-O-, -CO-O-, -000-, -O-CO-NH-, anhydride, -NH-CO-NH-, NHCO; a radical Si (R 4) (R 5) Where R 4 and R 5, which may be identical or different, represent H or a hydrocarbon radical, linear or branched, cyclic or otherwise, saturated or unsaturated, or aromatic, preferably a C 1 -C 12 alkyl may optionally comprise one or more, preferably 1 to 5, identical or different heteroatoms selected from 0, N, S, P, F and Si, preferably 0, N and S; an oxyalkylene or aminoalkylene radical, in particular an alkylene oxide radical of formula (R "'O) y R'" with R "'representing a linear or branched C2-C4 alkyl, R'" is hydrogen or a linear or branched C 1 -C 30 alkyl radical and y is between 1 and 500 inclusive, preferably from 1 to 250; A mixture of these radicals. In particular, Rb 2 can be - an alkylene radical having 1 to 40 carbon atoms or cycloalkylene having 3 to 16 carbon atoms, optionally substituted, with a C 1 -C 12 alkyl radical optionally comprising 1 to 8 heteroatoms chosen from O, N, S, F, Si and P such as methylene, ethylene, propylene, n-butylene, n-pentylene, isobutylene, tert-butylene, n-hexylene, n-octylene, n-dodecylene, n-octadecylene, ntetradecylene, n-docosanylene; 2-ethylhexylene, cyclohexylene, cyclohexylemethylene, isophorone; an arylene radical C1 to C30 such as a phenylene radical -C6H4- (ortho, meta or para) optionally substituted with a C1-C12 alkyl radical optionally comprising 1 to 25 heteroatoms chosen from 0, N, S, F; , Si and P; a C1 to C30 alkylarylene or arylalkylene radical, preferably a C2 to C12 radical, and in particular a benzylene radical -C6H4-CH2- optionally substituted with a C1-C12 alkyl radical optionally comprising 1 to 8 heteroatoms selected from 0, N; S, F, Si and P; an oxyalkylene or aminoalkylene radical, in particular an alkylene oxide radical of formula (R "'O) y R'" with R "'representing a linear or branched C2-C4 alkyl, R'" is hydrogen or a linear or branched C 1 -C 30 alkyl radical and y is between 1 and 500 inclusive, preferably from 1 to 250; - a mixture of these radicals. Preferably, Rb 2 may be: an alkylene radical having 1 to 12 carbon atoms or cycloalkylene having 3 to 6 carbon atoms, optionally substituted, with a C 1 -C 12 alkyl radical such as methylene, ethylene, propylene, n-butylene isobutylene, tert-butylene, npentylene, n-hexylene, n-octylene, n-dodecylene, n-octadecylene, cyclohexylene, cyclohexylemethylene, isophorone; a C1 to C12 alkylarylene or arylalkylene radical, which may be optionally substituted by a C1-C12 alkyl radical such as, for example, a benzylene radical -C6H4-CH2- or benzylene dimethylene. The monomer (b2) preferably has a weight average molecular weight (Mw) of between 60 and 1000, more particularly between 70 and 700 and better still 80 to 500.

Among the particularly preferred monomers (b2), mention may be made of: aminoethanol, aminopropanol; 4-aminobutanol; 1-ethylaminobutan-2-ol; amino-2-methyl-2-propanol; methyl-4-amino-4-pentan-2-ol; 1,2-ethylenediamine; 1,2-propylenediamine; 1,3-propylenediamine; 1,4-diaminobutane; 1,5-diaminopentane; 1,6-diaminohexane; 2,6-toluenediamine; 1,4-butanediol; 1,6-hexanediol; 1,2-ethanediol; 1,2-propanediol; 1,3-propanediol; neopentyl glycol; di (ethylene glycol) of formula HO- (CH 2 CH 2 O) 2 H; dihydroxy poly (ethylene oxide); dihydroxy poly (propylene oxide); poly (ethylene oxide / propylene oxide) dihydroxy copolymers; 1,2-benzenedimethanol, 1,4-benzenedimethanol; 1,4-dimethylolcyclohexane; 1,2-benzenethiol; - their mixtures.

When the monomer (b2) comprises at least one linking group, it may have the formula: ## STR2 ## in which R 2 and R x 1 are as defined above.

In a particular embodiment, the monomer (b2) may carry an ionizable group.

Among the anionizable monomers (b2), mention may be made of monomers comprising carboxylic (-COOH) and / or sulphonic (-SO3H) functions, in particular those of formula:

R "1 XHùFR" 3 in [R "4] m X'H [R" 21 p XH R "{NH {R" 2] rn zzz [R "HT 1 NH {R" {NH {R "2] m 2 X'H XH in which: - R "1 represents H or an alkyl group having from 1 to 40 carbon atoms, branched or unbranched, cyclic or otherwise, saturated or unsaturated, aromatic or otherwise, and / or optionally comprising one or more heteroatoms selected from O, S, P and N, and / or optionally substituted with one or more fluorine or silicon atoms; the heteroatom (s), when present, may be intercalated in the chain of said group, or said group may be substituted by one or more groups including them, such as hydroxyl or amino groups (NH 2, NHR 'or NR' R "with R 'and R" identical or different representing a linear or branched C1-C22 alkyl, in particular methyl or ethyl); - R "2, R" 3 and R "4, identical or different, represent an alkylene group (divalent alkyl) having from 1 to 40 carbon atoms, branched or unbranched, cyclic or not, saturated or unsaturated, aromatic or not, and / or optionally comprising one or more heteroatoms selected from O, S, P and N, and / or optionally substituted with one or more fluorine or silicon atoms; the heteroatom (s), when present, may be intercalated in the chain of said group, or said group may be substituted by one or more groups including them, such as ester, amide, hydroxyl or amino groups (NH2, NHR 'or NR'R "with R' and R ', which are identical or different representing linear or branched C1-C22 alkyl, in particular methyl or ethyl): X and X ', which may be identical or different, represent O, S, NH, NR where R is a linear or branched C1-C6 alkyl radical; preferably X and X 'represent O; - Z, Z', which may be identical or different, represent an carboxylic acid (-COOH) or sulfonic acid (-SO3H). n, p, m and q are, independently of one another, equal to 0 or 1.

Preferably, the anionizable monomers (b2) are chosen from compounds of formula: ## STR1 ## in which X, X R 1, R "2, R" 3, R "4, m, n, p and Z are as defined above, and more particularly the compounds of formula: R" 1 XH (CH 2 IX CH 2) where R "1 represents an alkyl group having from 1 to 22 carbon atoms, preferably CH3, and x and y, which are identical or different, are between 1 and 5 in glus, among the anionizable monomers ( b2) that may be mentioned include dimethylolpropionic acid, dimethylaminopropionic acid, N-ethylsulfonic imethanolamine, N-ethylsulfonic diethanolamine and diolbenzene sulphonic acid.

It is clear that these anionic groups can be neutralized. Among the cationizable or amphoteric monomers (b2), there may be mentioned, in particular, monomers bearing tertiary amine functional groups of formula: ## STR1 ## ## STR2 ## R "~ R6 N6 R7 / \ H \ / NuiR" 2 / \ XH XH R "2 N \ / NùR" 3 X'H XH X'H in which: - R "2, R" 3 and R "4 , identical or different, represent an alkylene (divalent alkyl) group having 1 to 40 carbon atoms, branched or unbranched, cyclic or otherwise, saturated or unsaturated, aromatic or otherwise, and / or optionally comprising one or more selected heteroatoms (s) from O, S, P and N, and / or optionally substituted with one or more fluorine or silicon atoms; the heteroatom (s), when present, may be inserted in the chain of said group, or said group may be substituted with one or more groups including them, such as ester, amide, hydroxyl or amino groups (NH 2, NHR 'or NR' R '' with R 'and R', which are identical or different, linear or branched C1-C22 alkyl, in particular methyl or ethyl). X and X ', which are identical or different, represent O, S, NH, NR, where R is a linear or branched C 1 -C 6 alkyl radical; preferably X and X 'are O; N, p and m are, independently of one another, equal to 0 or 1; - R6 and R7 represent a linear or branched C1-C22 alkyl group, preferably methyl, ethyl, lauryl or behenyl. Mention may in particular be made of the monomers of formula: ## STR2 ## in which X, X ', R "3, R" 4 and R 6 are defined as above. These include N-methyldiethanolamine, N-tert-butyldiethanolamine, N-ethyldiethanolamine and diaminopyridine. It is clear that these cationic groups can be neutralized. Mention may also be made, as cationic or amphoteric monomers (b2), in which the amine function is in a quaternary form, of formula: ## STR1 ## as defined above. Quaternization of the tertiary amine groups can be carried out by mobile halogen compounds, especially alkyl halides such as C1-C12 alkyl chlorides or bromides, and for example methyl bromide or sodium chloride. 'ethyl. These groups may also be quaternized with mobile halogen compounds having carboxylic or sulphonic acid functions, in particular sodium chloroacetate; or by cyclic sulfones, for example propanesulfone. Amphoteric monomers (or betaines, having at least one charge (+) and at least one charge (-) carried by the same monomer) are thus obtained. The quaternization can be carried out on the polymer already synthesized or on the starting monomers, before polymerization.

The polymer according to the invention may comprise, optionally, monomers (c) of YCN-R10 structure with Y representing O or S; preferably O; and R 10 representing a carbon radical, in particular alkyl, having from 1 to 40 carbon atoms, linear or branched, cyclic or otherwise, saturated or unsaturated, aromatic or non-aromatic, optionally comprising one or more heteroatoms chosen from O, S, P and N, and / or optionally substituted by one or more fluorine or silicon atoms; the heteroatom (s), when present, may be inserted in the chain of said radical, or said radical may be substituted by one or more groups including them such as ester and / or amide groups. In a particular embodiment, Rio may also carry at least one joining group. In particular, YCN-R10 can correspond to the formula: ## STR2 ## in which R'10 can represent a divalent carbon radical chosen from a linear or branched C1-C30 alkyl group, a group C4-C12 cycloalkyl or a C4-C12 aryl group; optionally comprising, but not preferentially, 1 to 8 heteroatoms selected from O, N, S, F, Si and P; as well as the mixtures of these meanings.

The polymer according to the invention may also optionally comprise monomers (d) of structure HX-R11 with: - X representing O, S, NH or NR, R representing a C1-C6 alkyl group; preferably, X = O; and R 11 representing a linear or branched, especially cyclic or non-cyclic, linear or branched, saturated or unsaturated, aromatic or non-aromatic carbon radical, optionally comprising one or more heteroatoms selected from O, S; , P and N, and / or optionally substituted with one or more fluorine or silicon atoms; the heteroatom (s), when present, may be inserted in the chain of said radical, or said radical may be substituted by one or more groups including them such as ester and / or amide groups.

These polymers are characterized by the presence of polyurethane and / or polyurea and / or polythiourethan and / or polythiourea blocks preferably corresponding to the following general formula: [X-Rb-X'-C (Y) NH-Ra-NHC ( In which X and X 'come from the monomers (b), Y and Y' come from the monomers (a), the radicals Rb come from the monomers (b), that is to say say that they represent, statistically, Rb1 and Rb2 as defined above; the radicals Ra come from the monomers (a), and are as defined above; in particular, they can represent, statistically, the monomers Ra of divalent aliphatic radical type (a1) and the monomers Rade type polymeric (a2); since at least one of Ra and / or Rb comprises at least one linking group A capable of forming at least 3 H bonds; x is an integer 2.

Preferably, the monomers of HX-Rb'-X'H (polymer) type represent 10 to 95% by weight, especially 12 to 85% by weight, preferably 15 to 80% by weight, of the total weight of the final polymer. Preferably, the monomers of HX-Rb2-X'H type (small diol) represent 1 to 30% by weight, especially 2 to 25% by weight, preferably 3 to 20% by weight, of the total weight of the final polymer.

These polymers (thio) urethane / (thio) urea can be prepared according to usual polycondensation methods and known to those skilled in the art. These methods are notably described in the following publications: - 60 Years of PUR - J. E. Kresta, E.W. Eldred Ed., Technomic Publishing, 1998, - Waterborne and Solvent Based Surface Coating Resins and Their Application, Surface Coating Technology Series, Vol. 3, Polyurethanes, Paul Thomas, John Wiley and Sons, 1998. These polymers are described in particular in application EP1797868.

III / The polymer that may be used in the context of the invention may also be a polymer based on polyalkene. By this is meant a polymer resulting from the reaction, in particular condensation, of at least one polyalkene polymer functionalized by at least one reactive group, with at least one linking group functionalized by at least one reactive group capable of reacting with the or the reactive groups of the functionalized polyalkene polymer, said joining group being capable of forming at least 3 H (hydrogen) bonds, preferably at least 4 H bonds, preferably 4 H bonds. Preferably, the functionalized polyalkene polymer, capable of forming all or part of the polymer backbone of the polymer according to the invention is of formula HX-P-X'H in which: XH and X'H are reactive groups, with X and X ', which are identical or different, chosen from O , SH, NH or NRa, Ra being a C1-C6 alkyl group; preferably, X and / or X 'denote O; preferentially, X and X 'denote O; P represents a homo- or a copolymer obtainable by polymerization of one or more C 2 -C 10, preferably C 2 -C 4, mono- or polyunsaturated, linear, cyclic and / or branched alkenes; P preferably represents a polyethylene, a polybutylene, a polybutadiene, a polyisoprene, a poly (1,3-pentadiene), a polyisobutylene, and their copolymers, and in particular a poly (ethylenebutylene). Poly (ethylenebutylene) are copolymers of butene-1 and ethylene. They can be schematized by the following sequence of units: [-CH2-CH2-] and [-CH2CH (CH2-CH3) -] Polybutadienes may be 1,4-polybutadienes or 1,2-polybutadienes, which may be respectively schematized by the following sequences of units: [-CH 2 -CH = CH-CH 2 -] (1,4-polybutadienes) [-CH 2 -CH (CH = CH 2) -] (polybutadienes 1,2) Preferably, it is is 1,2 polybutadienes. The polyisoprenes can be schematized by the following sequences of units: ## STR1 ## and CH 3 It is of course also possible to use a mixture of the above units in order to form copolymers. Preferably, the functionalized polyalkene polymers have a number-average molecular mass (Mn) greater than or equal to 1000, especially between 1000 and 5000, or even between 1500 and 3500. The functionalized polyalkene polymers can be totally hydrogenated to avoid the risks of cross-linking. . The supramolecular polymers may further comprise in their structure other units derived from other monomers. As comonomers, mention may in particular be made of styrene or epoxy. In a preferred embodiment, they do not include any and therefore consist only of polyalkene polymers (100%) to form the polymeric backbone. The polyalkene polymers are functionalized with at least one reactive group, preferably with at least two reactive groups. The functionalization is preferably at the end of chains. We are talking about telechelic polymers. The functionalization groups, or reactive groups, may be attached to the polyalkene polymer via linkers, preferably linear or branched C1-C4 alkylene groups, or directly by a single bond. As a reactive group, the OH, NH 2, NHR, SH or NCO functions may be mentioned. Among the preferred functionalized polyalkene polymers, mention may be made of polydienes, preferably hydrogenated, with hydroxyl functional groups, preferably with hydroxyl end-groups and hydroxyl-terminated polyolefins.

The polydienes with hydroxyl ends are especially defined for example in FR2782723. They can be chosen from homopolymers and copolymers of polybutadiene, polyisoprene and poly (1,3-pentadiene). Preferably, they have a number average molecular weight (Mn) of less than 7000, preferably between 1000 and 5000; and have a functionality at the hydroxyl ends of 1.8 to 3, and preferably close to 2. Mention may be made in particular of the hydroxylated polybutadienes sold by the company ELF ATOCHEM under the trade marks POLY BD R-45HT and POLY BD R-20 LM, which will preferably be hydrogenated; as well as dihydroxylated hydrogenated 1,2-polybutadienes, such as GI3000 of Mn = 3100, GI2000 (Mn = 2100) and GI1000 (Mn = 1500) marketed by Nisso. Among the polyolefins with hydroxyl ends, mention may preferably be made of polyolefins, homopolymers or copolymers having hydroxyl ends, such as polyisobutylenes having α, w hydroxyl ends; and copolymers of the formula: in particular those marketed by Mitsubishi under the tradename POLYTAIL. The supramolecular polymers according to the invention also have in their structure at least one residue of a linking group capable of forming at least 3 H bonds, preferably at least 4 H bonds, said joining group being initially functionalized by at least one reactive group. The reactive groups can be attached to the linking group via linkers, preferably linear or branched C1-C4 alkylene groups, or directly by a single bond. The said reactive groups must be capable of reacting with the reactive group or groups carried by the functionalized polyalkene. As a reactive group, there may be mentioned carboxy, hydroxy, amino or isocyanate groups. Preferably, it is a group ûN = C = O or ûN = C = S, and even more preferably of a group - N = C = O (isocyanate). Preferably, the linker is a phenylene group; 1,4-nitrophenyl; 1,2-ethylene; 1,6-hexylene; 1,4-butylene; 1,6- (2,4,4-trimethylhexylene); 1,4- (4-methylpentylene); 1,5- (5-méthylhexylène); 1,6- (6-méthylheptylène); 1,5- (2,2,5-trimethylhexylene); 1,7- (3,7-diméthyloctylène); ûisophorone-; 4,4'-methylene bis-cyclohexylene; tolylene; 2-methyl-1,3-phenylene; 4-methyl-1,3-phenylene; 4,4-bisphenylenemethylene; and preferably: isophorone; - (CH2) 2-; - (CH2) 6-; -CH2CH (CH3) -CH2-C (CH3) 2-CH2-CH2; 4,4'-methylene biscyclohexylene; 2-methyl-1,3-phenylene. Isophorone is understood to mean the following group: ## STR1 ## Better still, there may be mentioned as linking groups capable of forming at least 3 H bonds, groups derived from ureidopyrimidones, and in particular 2-ureidopyrimidone or methyl, 2-ureidopyrimidone.

Unless otherwise specified, the term "junction group" in the present description refers to the group without its reactive function. The functionalized junction groups capable of reacting with the functionalized polyalkene polymer are preferably of the formula: ## STR2 ## in which L is a single bond or a divalent (alkylene) carbon group, saturated or unsaturated, or linear, cyclic and / or branched C1-C20 aromatic, optionally comprising 1 to 4 N and / or O heteroatoms, especially in the form of a NO2 substituent, and in particular a phenylene group; 1,4-nitrophenyl; 1,2-ethylene; 1,6-hexylene; 1,4-butylene; 1,6- (2,4,4-trimethylhexylene); 1,4- (4-methylpentylene); 1,5- (5-méthylhexylène); 1,6- (6-méthylheptylène); 1,5- (2,2,5-trimethylhexylene); 1,7- (3,7-diméthyloctylène); ùisophorone-; 4,4'-methylene biscyclohexylene; tolylene; 2-methyl-1,3-phenylene; 4-methyl-1,3-phenylene; 4,4-biphénylèneméthylène; and preferably: isophorone; - (CH2) 2-; - (CH2) 6-; CH 2 CH (CH 3) -CH 2 -C (CH 3) 2 -CH 2 -CH 2; 4,4'-methylene biscyclohexylene; 2-methyl-1,3-phenylene. In a preferred embodiment, the polymer according to the invention corresponds to the formula: ## STR2 ## in which: ## STR2 ## in which: - L 'and L "have, independently of each other, the meaning indicated above for L; X, X 'and P have the meanings indicated above for the functionalized polyalkene polymer. Preferably, X = X '= O.

Preferably, L 'and L "represent a divalent (alkylene), saturated or unsaturated, C 1 -C 20 linear, cyclic and / or branched carbon group, and in particular a -isophorone- (CH 2) 2- group - (CH2) 6-; -CH2CH (CH3) -CH2-C (CH3) 2-CH2-CH2; 4,4'-33 NH2-N-OO HN-methylene biscyclohexylene; 2-methyl-1,3- phenylene Preferably, P represents a polyethylene, a polybutylene, a polybutadiene, a polyisoprene, a poly (1,3-pentadiene), a polyisobutylene, or a copolymer thereof, especially a poly (ethylene-butylene).

This polymer may be prepared by the methods usually employed by those skilled in the art, in particular to form a urethane bond between the free OH functions of a polyalkene, and the isocyanate functional groups carried by the linking group. By way of illustration, a first general method of preparation consists in: - optionally ensuring that the polymer to be functionalized has no residual water, - heating said polymer comprising at least one reactive function, especially 2 reactive functions, in particularly OH, at a temperature ranging from 60 ° C to 140 ° C; the hydroxyl number of the polymer that can be used as a reference in order to measure the progress of the reaction; - Add, preferably directly, the junction group carrying the reactive functions, including isocyanate; optionally stirring the mixture, under a controlled atmosphere, at a temperature of the order of 90-130 ° C .; for 1 to 24 hours; - optionally follow by infrared spectroscopy, the disappearance of the characteristic band of isocyanates (between 2500 and 2800 cm-1) so as to stop the reaction to the total disappearance of the peak, then allow the final product to return to ambient temperature. The reaction can also be followed by assays of the hydroxyl functions; it is also possible to add ethanol to ensure the total disappearance of residual isocyanate functions. The reaction can be carried out in the presence of a solvent, especially methyltetrahydrofuran, tetrahydrofuran, toluene, propylene carbonate or butyl acetate. It is also possible to add a conventional catalyst for urethane bond formation. By way of example, mention may be made of dibutyl tin dilaurate. The polymer may ultimately be washed and dried, or even purified, according to the general knowledge of the skilled person.

According to the second method of preparation, the reaction may comprise the following steps: (i) functionalization of the polymer, preferably dried beforehand, with a diisocyanate according to the reaction scheme: OH-polymer-OH (1 eq.) + NCO- X-NCO (1 eq.) - * OCN-X-NH- (0) CO-polymer-OC (O) -NH-X-NCO The diisocyanate may be optionally in excess of the polymer. This first step can be done in the presence of solvent, at a temperature between 20 ° C and 100 ° C. This first step can be followed by a stirring period under a controlled atmosphere for 1 to 24 hours. The mixture can be optionally heated. The state of progress of this first step can be followed by a determination of the hydroxyl functions. then (ii) reaction of the prepolymer obtained above with 6-methylisocytosine of the formula: Me

This second step may optionally be carried out in the presence of a co-solvent such as toluene, butyl acetate or propylene carbonate. The reaction mixture can be heated between 80 ° C and 140 ° C for a time varying between 1 to 24 hours. The presence of a catalyst, especially dibutyltin dilaurate, may favor the obtaining of the desired final product. The reaction can be followed by infrared spectroscopy, following the disappearance of the peak characteristic of the isocyanate between 2200 and 2300 cm-1. At the end of the reaction, ethanol may be added to the reaction medium in order to neutralize the residual isocyanate functional groups. The reaction mixture may be optionally filtered. The polymer can also be stripped directly into a cosmetic solvent. Such polymers are described in particular in application EP09173746.0.

Definition of functional groups According to the present invention, a linking group is a chemical group, especially a carbon group, capable of forming at least three H bonds, preferably at least four H bonds, and comprising at least one unit of formula (Ia) :

CH3

The unit (Ia) is linked to the linking group by a linker (linking agent) which may be a single covalent bond or a linear, branched or cyclic divalent carbon (especially alkyl) radical, in C1 -C60, saturated or unsaturated, optionally aromatic, which may contain one or more heteroatoms. In particular, the linker can be a C4-C12 cycloalkyl group; a linear or branched C1-C30 alkyl group or a C4-C12 aryl group; optionally substituted with an amino, ester and / or hydroxy function. Preferably, the linker is -C 4 H 9, phenyl; 1,4-nitrophenyl, or 1,2-ethylene, 1,6-hexylene, 1,4-butylene, 1,6- (2,4,4-trimethylhexylene), 1,4- (4-methylpentylene), 1,5- (5-methylhexylene) ), 1,6- (6-methylheptylene), 1,5- (2,2,5-trimethylhexylene) or 1,7- (3,7-dimethyloctylene); isophorone-, 4,4'-methylene biscyclohexylene, tolylene, 2-methyl-1,3-phenylene, 4-methyl-1,3-phenylene, 4,4-biphenylenemethylene, and preferably: isophorone-, - (CH2) 2-, - (CH2) 6-, -CH2CH (CH3) -CH2-C (CH3) 2-CH2-CH2, 4,4'-methylene biscyclohexylene, 2-methyl-1,3-phenylene.

The cosmetic active agents The cosmetic active agents bearing at least one unit of formula (Ia) that may be used in the cosmetic composition according to the invention (top-coat) are defined below. In the present invention, the term "cosmetic active agent" is intended to mean any compound, polymer or molecule which is capable of providing a cosmetic effect on keratin materials.

In particular, these cosmetic active agents can be chosen from the following compounds, alone or as a mixture: the cosmetic active ingredients for care and / or transformation of the keratin fiber; especially those of formula (II), (III), - coloring active agents, in particular direct dyes and fluorescent dyes; polymeric hydrophilic chains; silicone chains; fatty substances, in particular oils and so-called 'supramolecular' waxes; - UV filters, - hyaluronic acid, - capsules.

1 / The cosmetic active skincare and / or transformation of keratin fibers preferably correspond to formula (II) or formula (III). The active compounds of formula (II), as well as their salts, addition salts, isomers, solvates, in particular hydrates, tautomeric forms, are: embedded image in which: R 1 and R 2, independently of one another, represent H, -OH, -NRR '(with R, R', which may be identical or different, being H or an alkyl radical, linear or branched C1-C12, preferably C1-C4 and better still a methyl or ethyl radical) ; or a linear, branched and / or cyclic C1-C18, preferably C1-C12, saturated or unsaturated, optionally aromatic, carbon-containing group, which may contain one or more heteroatoms O, N and / or S, in particular OH , COOH and / or NRR '. The radicals R 1 and R 2 can in particular be chosen from: - H; - NH2 - a C1-C18 alkyl group, optionally substituted with one or more functions NH2, COOH and / or OH; a C 4 -C 12 cycloalkyl group, optionally substituted with one or more NH 2, COOH and / or OH functions; a C 4 -C 12 aryl group, optionally substituted with one or more NH 2, COOH and / or OH functions; and / or optionally substituted by one or more PEG groups of formula - (CH2CH2O) m - with m = 2 to 15; a C1-C4 alkoxy group; an aryl (C1-C4) alkoxy group; optionally substituted with one or more NH 2, COOH and / or OH functions.

Preferably R1 is H. Preferably R2 is H, CH3, C7H15, C13H27 or aryl. Preferably, R1 = H and R2 = methyl.

Z represents a monovalent radical chosen from: (i) a hydrogen atom, (ii) a C1 to C32 linear or branched (saturated) alkyl radical; especially C2-C24, or even C3-C18, even more preferably C4-C12; (iii) a C2 to C32 linear or branched (unsaturated) alkene radical having one or two C = C double bonds; especially C2-C24, or even C3-C18; (Iv) a C1-C32 alkyl radical, especially C2-C24, or even C3-C18, more preferably C4-C12, substituted by a C6-C10 aryl, especially C6-C8; in particular phenyl; said radicals possibly being substituted with 1 to 8, in particular 2 to 6, or even 3 to 5, chosen from -OH, -OR, -SH, -SR, -SO 3 H, -SO 3 R, -SO 2 NRR ', -COOH, -000R, -CONRR ', -NR-C (O) -NRR', -NRR 'and -N + RR'R ", with R, R' and R" = H or C1-C6 alkyl, especially methyl; and the substituents of formula (a) to (h) below:

OSiMe3 is an example of a SiOmE if SiOOt is OSiMe3 and is OOt (a) (d) ## STR1 ## Cl)

and / or said radicals possibly comprising 1 to 8, in particular 2 to 6, or even 3 to 5, divalent groups chosen from, alone or as a mixture, -S-, S (O), SO 2, -NH- (or = NH ), -O-, -C (O) -, -C (= NH) -, -N + (CH3) 2 -An- (An-: anion); or else - N = (trivalent).

For the sake of clarity, it is specified that the radical Z can not comprise a group: ## STR1 ## Preferably, the radical Z comprises 0 to 12 heteroatoms, in particular 1 to 10 or even 2 to 6 heteroatoms. Preferably, the radical Z, when substituted, is 1 to 8, in particular 2 to 6 or even 3 to 5, chosen from -OH, -SH, -SO 3 H, -COOH, -NRR '. and - N + RR'R ", with R, R 'and R" = H or C1-C6 alkyl, especially methyl; and the substituents of formula (a) to (h). Preferably, the Z radical, when it is interrupted, is 1 to 8, in particular 2 to 20, or even 3 to 5, divalent groups chosen from, alone or as a mixture, -S-, -NH- ( or = NH), -O-, -C (O) -, -C (= NH) -, -N + (CH3) 2-.

Among the compounds of formula (II) that are particularly preferred, mention may be made of the following compounds: ## STR1 ## ## STR2 ## ## STR1 ## ## STR2 ## ## STR3 ## in which ## STR1 ## in which ## STR2 ## in which ## STR1 ## in which ## STR2 ##

CH3 CH3 CH3 CH3 CH3 H3C-Si-CH3 / H3C ## STR2 ## ## STR1 ## wherein: ## STR1 ## ## STR2 ## wherein ## STR1 ## ## STR1 ## ## STR1 ## ## STR1 ## where ## STR1 ## ## STR2 ## ## STR2 ## CH 3 O 3 O 3 CH 3 CH 3 O CH 3 O CH 3 O H 3 C R O ~ N ~ S ~ iNNYN ~ O CH3 HIIIIII HI NII CH3 H 1 ONH H3CNIINH N Chiral O H3C.N + view NHN / CH 3 HN O-C O NH

CH3 HO NH Chiral 2 CI NOH3 OH H3C OH CH3 CH3) NH OH NH O ~ NN ~ N ~ SÂNH2 O CIH H H O NCi 1 NH O H CH3 N 'N CI3 CH3) NH O O N N - 9L. N SH N H H CH3 Chiral ~ NH IOIII NH2 ONNÂN OH H H O CH3

NH O Cl O

## STR1 ## ## STR5 ## wherein NH 3 NH 3 NH 2 NH 3 NH 3 NH 2 NH 2 NH 2 NH 2 NH 2 NH 2 NH 3 NH 2 O NHNH 2 O NH 3 NHOO NN-N NuOSyNH 2 O-SiMe3 O-SiMe3 The fiber care or transformation active agents may also satisfy the formula (III): ## STR1 ## wherein: ## STR5 ## , 2, 3 or 4; preferably n = 1 or n = 2;

- R1, R'1, R2 and R'2, identical or different within the same formula, represent H, -OH, -NRR '(with R, R', identical or different, being H or an alkyl radical; linear or branched C1-C12, preferably C1-C4 and more preferably a methyl or ethyl radical); or a linear, branched and / or cyclic, in particular C1-C18, preferably C1-C12, saturated or unsaturated, optionally aromatic, carbon-containing group, which may contain one or more heteroatoms chosen from O, S, N; these heteroatoms may in particular be present in the OH radical, COOH and / or NRR 'form.

The radicals R 1, R 2, R '1, R' 2 can in particular be chosen from: - H; - NH2 - a C1-C18 alkyl group, optionally substituted or interrupted by a quaternary ammonium radical, and / or optionally substituted with one or more amino (NH 2), ester (COOH) and / or hydroxy (OH) functions; a C 4 -C 12 cycloalkyl group, optionally substituted with one or more amino (NH 2), ester (COOH) and / or hydroxy (OH) functions; a C4-C12 aryl group, optionally substituted with one or more amino (NH2), ester (COOH) and / or hydroxy (OH) functions; and / or optionally substituted by one or more PEG groups of formula - (CH2CH2O) m - with m = 2 to 15; a C1-C4 alkoxy group; an aryl (C1-C4) alkoxy group; optionally substituted with one or more amino (NH 2), ester (COOH) and / or hydroxy (OH) functions.

Preferably, R1 and / or R'1 represent H. Preferably, R2 and / or R'2 represent H, CH3, C7H15, C13H27 OR aryl; preferably methyl.

Z represents a multivalent radical (divalent to pentavalent, according to the value of n), chosen from: - (i) a linear or branched, in particular saturated or unsaturated (especially C 1 -C 32) hydrocarbon radical (especially alkyl); optionally interrupted or substituted, one or more times, with an optionally aromatic C3-C12 (hetero) ring; or - (ii) a carbon radical, in particular C3-C12 hydrocarbon radical (in particular alkyl) (hetero) cyclic optionally aromatic radical; optionally substituted by one or more carbon radicals, in particular linear or branched hydrocarbon radicals, saturated or unsaturated, at C 1 to C 32; said radical possibly being: substituted with 1 to 12 groups chosen from -OH, -SO 3 R, -OSO 3 R, -SO 3 H, -SOO 3 H, -COOH, -000 R, -CONRR 'and -N + RR' R ", with R R 'and R "= C 1 -C 12 alkyl, especially methyl; and / or - interrupted by 1 to 12 (inclusive), in particular 1 to 4, or even 1 to 3 maximum, groups chosen from: - (i) the divalent groups: -S-, -NH- (or = NH), - 0-, -C (O) -, -SO2-, / R "+ + ùN N ù Nù ù N N / R 'R' where - Ra = H or halogen, especially Cl, or C1-C6 alkyl, and R 'and R ", which are identical or different, representing a hydrogen atom or a linear, branched and / or cyclic, saturated, in particular alkyl, carbon radical comprising 1 to 22 carbon atoms, (i) optionally substituted by one or more groups chosen from -SO3R1, -OSO3R1, -COOR1, -Si (OR1) 3, -N + R1R2R3 or -NR1R2, in which R1, R2 and R3, independently of one another, are chosen from H and C1-C22 alkyl, especially C1-C12 alkyl, preferably methyl; and / or (ii) optionally interrupted by one or more groups selected from -NH-, -O-, -C (O) - (alone or in combination); (ii) the trivalent groups: ## STR1 ## being as defined above for the divalent groups, said trivalent groups being generally present at the junction of said radicals (especially when Z is trivalent). Preferably, said radical Z comprises at least one heteroatom chosen from N, O and S, preferably chosen from N and S, and more preferably at least one nitrogen heteroatom. The radical Z may be preferably a linear or branched, saturated (divalent to pentavalent) alkyl radical comprising 1 to 32, in particular 2 to 18 or even 3 to 12, carbon atoms, it being understood that it comprises at least in addition to a heteroatom selected from N, O and S, especially in the form of a substitution or interruption group as defined above. Preferably, said heteroatom may be present in the chain in the form of the following substitution groups -O0H, -COOMe, -CONRR ', and / or in the form of the following interruption groups: S, O, -NR'-, N + (R ') (R ") - or N (trivalent) In particular, the heteroatoms may be present in the form of a combination such as, for example -C (O) O-; 0-, -NR'C (O) -, -NR'C (O) NR "-, -NR'C (O) O-, -NRSO2-, -NR-SO2-NR'-, or even in form - (CH 2 CH 2 O) x- with x = 2 to 5. Preferably R 'and R "represent H or a C 1 -C 12 alkyl radical, especially methyl or ethyl.

The compounds of formula (III) may particularly correspond to the following structure (R 1 = R '1 = H): ## STR2 ## And even better to the structures described below. after: CH3 CH3 \ NH OO HN ~~ z ONNN 1 1 HHN ~ N ~ N ~ O 1 1 HH C13H27

Wherein Z and n are as defined above, with preferably n = 1. Preferably, the radical Z represents a divalent or trivalent hydrocarbon radical, linear or branched, saturated or unsaturated, at Cl to C32, comprising at least one unit of the type: -O-; -NR'-, -N + R'R "-, -S-, -C (O) O-; -OC (O) O-; -NR'C (O) -, - NR'C (O) NR "-, -NR'C (O) O-, - (CH2CH2O) x-; with R 'and R "selected from hydrogen, linear or branched C1-22 alkyl chain, C3-C7 cycloalkyl.

Among the compounds of formula (III) which may be of interest, mention may be made of the following compounds: ON ~ NO (NNNN ONNÂNN) CH 3 CH 3 NH OO HNN \ O NNNNNNN NO HH i HH CH3 CO2H NO CO2HH 0 N 0 Ne-LN N N-jLN) N ~ 0 CH3 CH3

NH O O HN

~ ON NNOONN HHHHONON ~ NÂN ~~ N1rN'jl'N) NNOON ~ 0 NNNNNN0 OO COHH ONN NWN Â NNOOONN 0 CO Me CO2Me0 NO ~ N ~ N ~ N vv \ N ~ N ~ O 0 NN Nù NNN 0 ## STR5 ## ## STR4 ## ## STR4 ## ## STR4 ## ## STR2 ## 1 O NNN ~~ N1N ~ NO

## STR5 ## ## STR2 ## ## STR2 ## ## EQU1 ## ## STR1 ## ## STR2 ## with n = 1 to 4 N ~ YNH HN OH, 77NHN ~~ ## STR2 ## where X = Cl or Br HN n0 H + O with n = 1 to 4 1 with X = Cl or Br "HH ~ H" NYN

Y N "H O N, 1 + H N

X N N N \ X with X = Cl or Br NH O O HN 'O NNNNNN) NO H H O ~ NHOO A + H O NH O O HN O NHN T N NO O

H Ô O A + A + = Na +, K +, NH4 + A + = Na +, K +, NH4 + ~ NH O IOIII HN 'O ~ N ~ NNNNN ~ N ~ O H H O, J H H i - H N -' O A +

O A + = Na +, K +, NH4 + NH OO HN O Ne; -L..NNNNN HHHON SO3- A + H A + = Na +, K +, NH4 + NH OO Me HN 'ON ~ N ~ N ~~ IN + v ~ N ~ NHHO ## STR2 ## ## STR1 ## and the following compounds: ## STR2 ## ## STR1 ## , O '- OH NH OO HN O ~ NLN NO - INNO ~ N, H 0 HHHHH CI O HN NNO JHH H2N Cl Cl V nrv ON ~ N ~ NNNOO ~ NH OOJO HN NH O O HN HN O / 2 / les Coloring agents may be chosen from direct dyes, fluorescent dyes. Direct dyes As chromophores which may be used in the present invention, mention may be made of the radicals derived from acridine dyes, acridones, anthranthrones, anthrapyrimidines, anthraquinones, azines, azoethines, azomethines, benzanthrones, benzimidazoles, benzimidazolones, benzindoles, benzoxazoles, benzopyrans, benzothiazoles, benzoquinones, bisazines, bis isoindolines, carboxanilides, coumarins, cyanines (azacarbocyanine, diazacarbocyanine, diazahemicyanine, hemicyanine, tetraazacarbocyanine), diazines, diketopyrrolopyrroles, dioxazines, diphenylamines, diphenylmethanes, dithiazines, flavonoids such as flavanthrones and flavones, fluorindines, formazans, hydrazones in particular arylhydrazones, hydroxyketones, indamines, indanthrones, indigoides and pseudoiondigoids, indophenols, indoanilines, isoindolines, isoindolines, isoindolinones, isoviolanthrones, lactones, methines, naphthalimides, naphthhanilides, naphtholactams, naphthoquinones, nitro compounds, especially nitro- (hetero) aromatic, oxadiazole, oxazine, perilone, perinone, perylene, phenazine, phenothiazine, phthalocyanine, polyene / carotenoid, porphyrin, pyranthrone, pyrazolanthrone, pyrazolone, pyrimidinoanthrone, pyronine, quinacridone, quinoline, quinophthalone, squarane, stilbenes, tetrazoliums, thiazines, thioindigo, thiopyronines, triarylmethanes, xanthenes. Among the nitro chromophores that may be used according to the invention, mention may be made, in a nonlimiting manner, of the radicals resulting from the following dyes: 1,4-diamino-2-nitrobenzene -1-amino-2-nitro-4-R-hydroxyethylaminobenzene -1 2-amino-Nitro-4-bis (R-hydroxyethyl) -aminobenzene-1,4-bis (R-hydroxyethylamino) -2-nitrobenzene-1-R-hydroxyethylamino-2-nitro-4-bis (R-hydroxyethylamino) -benzene - 1-R-hydroxyethylamino-2-nitro-4-aminobenzene -1-R-hydroxyethylamino-2-nitro-4- (ethyl) (R-hydroxyethyl) -aminobenzene-1-amino-3-methyl-4- R-Hydroxyethylamino-6-nitrobenzene-1-amino-2-nitro-4-R-hydroxyethylamino-5-chlorobenzene-1,2-diamino-4-nitrobenzene-1-amino-2-R-hydroxyethylamino-5-nitrobenzene 1,2-Bis- (R-hydroxyethylamino) -4-nitrobenzene-1-amino-2-tris- (hydroxymethyl) -methylamino-5-nitrobenzene-1-hydroxy-2-amino-5-nitrobenzene-1-hydroxy- 2-amino-4-nitrobenzene-1-hydroxy-3-nitro-4-aminobenzene -1-hydroxy-2-amino-4,6-d-1-r-hydroxy thyloxy-2-R-hydroxyethylamino-5-nitrobenzene-1-methoxy-2-R-hydroxyethylamino-5-nitrobenzene-1-R-hydroxyethyloxy-3-methylamino-4-nitrobenzene-1-dihydroxypropyloxy-3-methylamino 4-nitrobenzene -1-R-hydroxyethylamino-4-R, y-dihydroxypropyloxy-2-nitrobenzene-1-di-hydroxypropylamino-4-trifluoromethyl-2-nitrobenzene-1-R-hydroxyethylamino-4-trifluoromethyl-2-nitrobenzene 1-R-hydroxyethylamino-3-methyl-2-nitrobenzene-1-R-aminoethylamino-5-methoxy-2-nitrobenzene -1-hydroxy-2-chloro-6-ethylamino-4-nitrobenzene-1-hydroxy-2- chloro-6-amino-4-nitrobenzene-1-hydroxy-6-bis- (R-hydroxyethyl) -amino-3-nitrobenzene-1-R-hydroxyethylamino-2-nitrobenzene-1-hydroxy-4-β-hydroxyethylamino 3-nitrobenzene.

The following compounds, described in the COLOR INDEX INTERNATIONAL 3rd edition, may also be mentioned among the azo chromophores: - Disperse Red 17 - Acid Yellow 9 - Acid Black 1 - Basic Red 22 - Basic Red 76 - Basic Yellow 57 - Basic Brown 16 - Acid Yellow 36 - Acid Orange 7 - Acid Red 33 - Acid Red 35 - Basic Brown 17 - Acid Yellow 23 - Acid Orange 24 - Disperse Black 9.

We may also mention 1- (4'-aminodiphenylazo) -2-methyl-4bis- (13-hydroxyethyl) aminobenzene and 4-hydroxy-3- (2-methoxyphenylazo) -1-naphthalene sulfonic acid. Among the quinonic chromophores, mention may be made of the radicals resulting from the following dyes: - Disperse Red 15 - Solvent Violet 13 - Acid Violet 43 - Disperse Violet 1 - Disperse Violet 4 - Disperse Blue 1 - Disperse Violet 8 - Disperse Blue 3 - Disperse Red 11 - Acid Blue 62 - Disperse Blue 7 - Basic Blue 22 - Disperse Violet 15 - Basic Blue 99 and the following compounds: -1-Aminopropylamino-4-methylaminoanthraquinone - 1-Aminopropylaminoanthraquinone - 5-13-hydroxyethyl-1,4- diaminoanthraquinone - 2-aminoethylaminoanthraquinone - 1,4-bis - ((3y-dihydroxypropylamino) anthraquinone Among the azine chromophores, those listed in the Color Index International and for example the radicals derived from the following dyes: - Basic Blue 17 - Basic Red 2. Among the triarylmethane chromophores that may be used according to the invention, there may be mentioned, in addition to those listed in the Color Index, the radicals resulting from the following dyes - Basic Green 1 -Acid blue 9 - Basic Violet 3 - B Asic Violet 14 - Basic Blue 7 - Acid Violet 49-Basic Blue 26 - Acid Blue 7 Among the indoamine chromophores that can be used according to the invention, mention may be made of the radicals resulting from the following dyes: - 2-R-hydroxyethlyamino-5- [bis - (R-4'-hydroxyethyl) amino] anilino-1,4-benzoquinone -2-R-hydroxyethylamino-5- (2'-methoxy-4'-amino) anilino-1,4-benzoquinone-3-N ( 2'-Chloro-4'-hydroxy) phenyl-acetylamino-6-methoxy-1,4-benzoquinone imine-3-N (3'-chloro-4'-methylamino) phenyl-ureido-6-methyl-1,4 benzoquinone imine - 3- [4'-N- (ethyl, carbamylmethyl) amino] phenyl-ureido-6-methyl-1,4-benzoquinone imine.

The chromophores described in the documents US Pat. We can also mention those described in the encyclopedia "The chemistry of synthetic dye" by K. VENKATARAMAN, 1952, Academic press vol 1 to 7 ", in the encyclopedia" Kirk Othmer, Chemical technology, chapter 'dyes and dye intermediate' , 1993, Wiley and Sons, "and in various chapters of the encyclopedia" ULLMANN's ENCYCLOPEDIA of Industrial Chemistry, 7th Edition, Wiley and Sons. "The preferred chromophores are those absorbing light between 380 nm and 850 nm.

Fluorescent dyes According to the present invention, the term "fluorescent chromophore" means a radical derived from a fluorescent compound. A fluorescent compound is a compound that is capable of absorbing in UV or visible radiation at a wavelength λabs between 250 and 800 nm and capable of reemitting in the visible range at an emission wavelength λm between 400 and 800 nm. Preferably, the fluorescent compounds are dyes capable of absorbing in the visible range between 400 and 800 nm and reemitting in the visible range between 400 and 800 nm. More preferably, the fluorescent dyes are dyes capable of absorbing at an Abs between 420 nm and 550 nm and reemitting in the visible at a 4m between 470 and 600 nm. Fluorescent chromophores useful in the present invention include radicals derived from acridine dyes, acridones, benzanthrones, benzimidazoles, benzimidazolones, benzindoles, benzoxazoles, benzopyrans, benzothiazoles, coumarines, difluoro {2 - [(2H-pyrrol-2) -ylidene-kN) methyl] -1 H-pyrrolato-kN} bores (BODIPY®), diketopyrrolopyrroles, fluorindines, (poly) methines (especially cyanines and styryls / hemicyanines), naphthalimides, naphthhanilides, naphthylamine (such as dansyls), oxadiazoles , oxazines, perilones, perinones, perylenes, polyenes / carotenoids, squarans, stilbenes, xanthenes. Mention may also be made of the fluorescent dyes described in the documents EP1133975, WO03 / 029359, EP860636, WO95 / 01772, WO95 / 15144 and EP714954 and those listed in the encyclopedia "The chemistry of synthetic dye by K. VENKATARAMAN, 1952, Academic press vol 1 to 7 ", in the encyclopedia" Kirk Othmer "" Chemical technology ", chapter" dyes and dye intermediate ", 1993, Wiley and sounds, and in various chapters of the encyclopedia" ULLMANN's ENCYCLOPEDIA of Industrial Chemistry "7th edition , Wiley and sounds, in The Handbook, A Guide to Fluorescent Probes and Labeling Technologies, 10th ed. Molecular Probes / Invitrogen; Oregon 2005 on the Internet or in previous print editions. It is of course understood that these chromophores bear at least one unit of formula (Ia) as defined above. Coloring agents that may also be mentioned are those described in patent application EP2083791. 3 / Polymeric hydrophilic chains Hydrophilic chains are characterized by the fact that they contain the repetition of monomer units whose log P is less than 2, preferably less than 1. These chains preferably have a number-average molecular weight ( Mn) of between 200 and 100,000 g / mol, more preferably between 250 and 50,000 g / mol and more preferably between 300 and 50,000 g / mol. Mention may in particular be made of: water-soluble synthetic polymers, such as, for example, polyvinylpyrrolidone backbones, polyvinyl alcohol (partially or totally deprotected), polyvinylamine (partially or totally deprotected), polyvinylpyrrolidone, polyvinylmethylether, polyvinyl arylsulfonate, polyalkyl (methyl or ethyl) oxazoline , polyallylamine, polydiallylamine, polydimethyldiallylammonium chloride, ethylene polyoxide (PEG) or its copolymers, in particular PEG / PPO (with a PEG content greater than 25% compared with the PPO in number of repeating units), polyacrylic acid, poly (N, N, dimethylacrylamide), poly (hydroxyethyl methacrylate), poly (hydroxypropyl methacrylamide), and their copolymers - oligosaccharides, polysaccharides such as dextran, dextran sulfate, amylose, hydroxypropylcellulose, glycoaminoglycans (chondroitin sulfate), hyalic acid luronic, xanthan gum, alginate, chitosan, inulin; polyamino acids such as, for example, polyglutamic acids, polylysine, polyornithine, polyarginine and their copolymers. 4 / Silicone chains Silicone chains are in particular PDMS chains; the preferred ones are described in particular in WO2004 / 052963. Mention may be made of phenyl silicones functionalized with ureidopyrimidone units, in particular synthesized from aminopropylphenyltrimethicone, sold by Dow Corning, and in which ureidopyrimidone units have been grafted via ureidopyrimidone functionalized with an isocyanate unit.

5 / the quas bodies, in particular the oils and the so-called supramolecular waxes The supramolecular oils may be obtained by reaction between at least one oil bearing at least one reactive, nucleophilic and / or electrophilic, and - on the other hand at least one joining group capable of establishing hydrogen bonds with one or more partner joining groups, each pairing of a joining group involving at least 3 hydrogen bonds, said joining group bearing at least one reactive function capable of reacting with the reactive function carried by the oil, said joining group comprising at least one unit of formula (I ') or (II') as defined below.

Preferably, the supramolecular oils may be obtained by reaction between: at least one oil carrying at least one nucleophilic reactive functional group selected from OH and NH 2, and at least one joining group; capable of establishing hydrogen bonds with one or more joint joining groups, each pairing of a linking group involving at least 3 hydrogen bonds, said joining group carrying at least one isocyanate or imidazole reactive group, said group joining agent comprising at least one unit of formula (I ') or (II') as defined below.

Finally, the supramolecular oils therefore comprise at least part (HB) originating from the oil and at least part (G) originating from the joining group, said part (G) comprising at least one unit of formula (I ') or (II '). In particular, said parts (HB) and (G) are connected by a covalent bond, in particular can be connected by a covalent bond formed during the reaction between the OH and / or NH 2 reactive functional groups carried by the oil and the isocyanate functions carried. by the joining group; or between the reactive functions NH2 carried by the oil and the isocyanate or imidazole functions carried by the linking group.

The oil which can be used to prepare the supramolecular oils, which can preferably be schematized (HB) - (OH) n, (NH 2) n, is a non-crystalline fatty substance or mixture of fatty substances. ° C, liquid at room temperature and at atmospheric pressure (25 ° C, 1 atm.); preferably apolar, or preferably preferably not soluble in water. By liquid is meant that the viscosity of the compound is less than or equal to 2500 centipoise, at 110 ° C., 1 atm., Measured with a Brookfield DV-I or Brookfield Cap 1000+ rheometer, the person skilled in the art choosing apparatus suitable for measuring viscosity. By apolar is meant a compound whose HLB (hydrophilic lipophilic balance) value is low; in particular less than or equal to 8, preferably less than or equal to 4, and more preferably less than or equal to 2.

By non-soluble it is meant that the fraction of oil which can dissolve in water, at 25 ° C., 1 atm., Is less than 5% by weight (ie 5 g of oil in 100 ml of water ); preferably less than 3%. The term "fatty substance" is intended in particular, but not exclusively, to mean a hydrocarbon compound comprising one or more linear, cyclic, branched, saturated or unsaturated alkyl chains having at least 6 carbon atoms and which may contain polar groups such as an acidic group. , a hydroxyl or polyol, amine, amide, phosphoric acid, phosphate, ester, ether, urea, carbamate, thiol, thioether, thioester, this chain may contain up to 100 carbon atoms. Preferably, the oil which can be used to prepare the supramolecular oil according to the invention is a non-volatile oil. By "non-volatile oil" is meant an oil that can remain on the keratin materials at ambient temperature and atmospheric pressure for at least several hours, and in particular having a vapor pressure of less than 10 -3 mmHg (0.13 Pa). . Preferably, the oil has a molar mass (Mw) of between 150 and 6000, in particular between 170 and 4000, or even between 180 and 2000, preferably between 200 and 1500, and more preferably between 220 and 800 g / mol.

The oil that may be used in the context of the present invention carries at least one reactive functional group capable of reacting with the reactive function carried on the linking group, in particular capable of reacting chemically with the isocyanate or imidazole groups carried by the group. junction; preferably, this function is an OH or NH 2 function. Preferably, the oil comprises only OH functions, in particular 1 to 3 OH functions, preferably primary or secondary OH functions, and still better only primary.

The oil that can be used in the context of the present invention may be chosen from: (i) fatty alcohols, comprising 6 to 50 carbon atoms, linear, branched or cyclic, saturated or unsaturated, comprising 1 or more OH; optionally comprising one or more NH 2. In particular, mention may be made of: linear or branched C 6 -C 50, especially C 6 -C 32, in particular C 8 -C 28, monohydric alcohols, which are saturated or unsaturated, and in particular isostearyl alcohol, cetyl alcohol, oleyl alcohol, oleyl alcohol, isopalmitoyl alcohol, 2-butyl octanol, 2-hexyl decanol, 2-octyl decanol, 2-octyl dodecanol, 2-octyl tetradecanol, decyl alcohol, 2 tetradecanol, 2-dodecyl hexadecanol, and especially the alcohols sold under the name Jarcol by Jarchem Industries, such as Jarcol I-12, Jarcol I-16, Jarcol I-20 and Jarcol 1-24; linear or branched C 6 -C 50, especially C 6 -C 40, especially C 8 -C 38, saturated or unsaturated diols, and in particular C 32 -C 36 branched diols, and in particular the Uniqema Pripol 2033 commercial product; linear or branched triols of C 6 -C 50, especially C 6 -C 32, in particular C 8 -C 28, saturated or unsaturated, and especially phytantriol;

(ii) esters and ethers bearing at least one free OH group, and in particular esters and partial polyol ethers, and hydroxylated carboxylic acid esters. By partial polyol ester is meant the esters prepared by esterification of a polyol with a carboxylic acid, substituted or unsubstituted, the reaction not being total, that is to say not carried out on all the free OH of the polyol; in the end, the ester therefore still has at least one free OH. Preferably, the carboxylic acid is a monoacid. It is also possible to use a mixture of carboxylic acids, in particular monocarboxylic acids.

Partial polyol ether is understood to mean the ethers prepared by etherification of a polyol, on itself or with at least one other alcohol, mono or polyhydroxylated, preferably monoalcohol, the etherification reaction not being complete, c that is, not performed on all the free OHs of the polyol; in the end, the ether still has at least one free OH.

By hydroxy carboxylic acid ester is meant the esters (mono and poly) prepared by reaction between a carboxylic acid carrying at least one OH function, and one or more alcohols (mono or poly), preferably monoalcohol, the reaction. which may be total or partial (carried out on all or part of the free OH of the alcohol). Among the polyols which may be used to prepare the esters or ethers above, mention may be made of propylene glycol, glycerol and neopentyl glycol. trimethylolpropane, trimethylolethane, polyglycerols and especially polyglycerol-2, polyglycerol-3 and polyglycerol-10; erythritol, dipentaerythritol, pentaerythritol, di-trimethylolpropane, phytantriol, sucrose, glucose, methylglucose, sorbitol, fructose, xylose, mannitol, glucosamine; as well as diol dimers in particular obtained from dimeric fatty acids, especially C32-C38 branched diols, especially C36, aliphatic and / or alycyclic diols, such as those defined in the Hofer et al. European Coating Journal (March 2000), pages 26-37; and their mixtures. Among the monoalcohols that can be used to prepare the above esters or ethers, mention may be made of linear or branched, preferably branched, C 3 -C 50 alcohols, and especially 2-ethylhexanol, octanol, alcohol and the like. isostearyl, and mixtures thereof. Among the carboxylic acids which may be used to prepare the above esters or ethers, mention may be made of monoacids having 6 to 50 carbon atoms and diacids having 3 to 12 carbon atoms, linear or branched, saturated or unsaturated, Among these are octyldodecyl acid, hexyldecyl acid, ethylhexyl acid, isostearic acid, nonanoic acid, isononanoic acid, arachidic acid, stearic acid, acid, and the like. palmitic acid, oleic acid, oxalic acid, adipic acid, succinic acid, fumaric acid, maleic acid, capric acid, hexanedioic acid, decyl acid, acid decanoic, and their mixtures.

Among the hydroxylated carboxylic acids that may be used to prepare the above esters or ethers, mention may be made of monohydroxylated or polyhydroxylated, preferably monohydroxylated acids; having 4 to 28 carbon atoms for example, and in particular 12-hydroxystearic acid, ricinoleic acid, malic acid, lactic acid, citric acid; and their mixtures.

Thus, the oil that may be used in the present invention may be chosen from, alone or as a mixture: partial esters of pentaerythritol, and especially pentaerythrityl adipate, pentaerythrityl caprate, pentaerythrityl succinate, pentaerythrityl tetraisononate, pentaerythrityl triisononanoate, pentaerythrityl tetraisostearate, pentaerythrityl triisostearate, pentaerythritol tetradecyltetradecanoate, pentaerythrityl tetraethyl hexanoate, pentaerythrityl tetraoctyl dodecanoate. dipentaerythritol diesters, triesters, tetraesters or pentaesters, and in particular dipentaerythrityl pentaisononanoate, dipentaerythrityl pentaisostearate, dipentaerythrityl tetraisostearate, dipentaerythrityl tri (polyhydrooxystearate); trimethylolpropane mono- and di-esters such as trimethylolpropane monoisostearate, trimethylolpropane di-isostearate, trimethylolpropane monoethylhexylate, trimethylolpropane diethyl-2-hexylate; di-trimethylolpropane mono-, di- and tri-esters such as ditrimethylolpropane di-isostearate, di-trimethylolpropane triisostearate, ditrimethylolpropane tri-ethyl hexanoate; the mono-esters or partial polyesters of glycerol or of polyglycerols, and not 40: glycerol di-isostearate, glycerol di-isononanoate, polyglycerol mono-, di- and tri-esters; -2; for example with isostearic acid, 2-ethyl hexyl acid and / or isononanoic acid; and in particular polyglyceryl-2-isostearate; polyglyceryl-2-diisostearate; polyglyceryl-2 triisostearate; polyglyceryl-2-nonaisostearate; polyglyceryl-2-nonanoate; mono-, di-, tri- or tetra-esters of polyglycerol-3; for example with either isostearic acid, 2-ethyl hexyl acid and / or isononanoic acid; and especially polyglyceryl-3-isostearate, polyglyceryl-3-diisostearate; polyglyceryl-3 triisostearate; polyglyceryl-3-nonaisostearate; polyglyceryl-3-nonanoate; partial esters of polyglycerol-10 and in particular polyglyceryl-10 nonaisostearate; polyglyceryl-10-nonanoate; polyglyceryl-10-isostearate, polyglyceryl-10-diisostearate, polyglyceryl-10 triisostearate; propylene glycol monoesters such as propylene glycol monoisostearate, propylene glycol neopentanoate, propylene glycol monooctanoate; dimer-diol monoesters such as isostearyl dimer dilinoleate and octyl dodecyl dimer dilinoleate; glycerol ethers, such as polyglyceryl-2-oleyl ether, polyglyceryl-3-cetyl ether, polyglyceryl-3-decyltetradecyl ether and polyglyceryl-2 stearyl; esters between hydroxylated mono-, di- or tri-carboxylic acid and monoalcohols, and in particular: esters, in particular monoesters, of 12-hydroxystearic acid; such as octyl hydroxystearate and octyl-2-dodecyl hydroxystearate; mention may also be made of the corresponding oligomeric polyhydroxystearates, in particular having a degree of polymerization of 1 to 10, having at least one residual OH; lactic acid esters, and especially C4-40 alkyl lactates, such as 2-ethylhexyl lactate, diisostearyl lactate, isostearyl lactate, isononyl lactate, lactate 2-octyldodecyl; malic acid esters, and in particular C4-40 alkyl malates, such as 2-diethyl hexyl malate, diisostearyl malate, 2-dioctyl dodecyl malate; esters of citric acid, and in particular C4-40 alkyl citrates, such as triisostearyl citrate, triisocetyl citrate and triisoarachidyl citrate.

(iii) natural, modified natural oils, vegetable, hydroxylated and in particular - triglycerine esters bearing one or more OH, - castor oil, hydrogenated or not, and its derivatives, especially derived from the transesterification of the oil of castor; like the Polycin M-365 or Polycin 2525 products sold by Vertellus; modified epoxidized oils, the modification consisting of opening the epoxy function to obtain a diol, and especially hydroxylated modified soybean oil; hydroxylated soybean oils (directly hydroxylated or first epoxidized); and in particular Agrol 2.0, Agrol 3.0 or Agrol 7.0 oils marketed by Bio-Based Technologies, LLC; Soyol oil R2-052 from Urethane Soy System; Renuva oils marketed by Dow Chemical; BioH Polyol 210 and 500 oils marketed by Cargill. In particular, the following brilliant oils can be employed, for which the refractive index at 25 ° C is indicated in parentheses: polyglyceryl-3-diisostearate (1.472), phytantriol (1.467), castor oil (1.475 ), octyl-2-dodecanol (1.46), oleyl alcohol (1.461), octyl hydroxystearate (1.46), polyglyceryl-2-isostearate (1.468), polyglyceryl-2- diisostearate (1.464), diisostearyl malate (1.462), butyl-2-octanol, 2-hexyl decanol (1.45), decyl-2-tetreatecanol (1.457), and mixtures thereof. Preferably, the oils which can be used in the present invention are chosen from octyl-2-dodecanol, diisostearyl malate, 2-butyl octanol, 2-hexyl decanol and 2-decyltetradecanol; castor oil, hydrogenated or not, as well as its derivatives; hydroxylated modified soybean oil, and mixtures thereof. The junction group that can be used to form the supramolecular oil according to the invention carries at least one reactive group, in particular isocyanate or imidazole, capable of reacting with the reactive functional groups, in particular OH and / or NH 2 (NH 2 only for imidazole), oil, to form a covalent bond, especially urethane type, between said oil and said joining group. Said linking group is capable of establishing H bonds with one or more joint joining groups, of identical or different chemical nature, each pairing of a joining group involving at least 3 H (hydrogen) bonds, preferably at least 4 H bonds, preferably 4 H bonds. Said linking group, bearing isocyanate groups, can therefore be schematized (G) - (NCO) p, p being a non-zero integer, preferably equal to 1 or 2. The group junction additionally comprises at least one monovalent unit of formula (I ') and / or at least one divalent unit of formula (II'), as defined below: ## STR2 ## In which: R1 and R3, which may be identical or different, represent a divalent carbon radical chosen from (i) a linear or branched C1-C32 alkyl group, (ii) ) a C4-C16 cycloalkyl group; and (iii) a C4-C16 aryl group; optionally comprising 1 to 8 heteroatoms selected from O, N, S, F, Si and P; and / or optionally substituted with an ester, amide or a C 1 -C 12 alkyl radical; or a mixture of these groups; R 2 represents a hydrogen atom or a linear, branched or cyclic, saturated or unsaturated, optionally aromatic, C 1 -C 32 hydrocarbon (alkyl) radical, which may comprise one or more heteroatoms chosen from O, N, S; , F, Si and P.

In a particularly preferred manner, in the formula (I '), one can have: - R ~ = -isophorone-, R2 = methyl, which leads to the unit of formula: ## STR2 ## -, R2 = methyl, which leads to the unit of formula: - R ~ = - (CH2) 6-, R2 = isopropyl, which leads to the unit of formula: HH 1 1 OvN ~ N ~ NH O H3CCH3 - R ~ = 4,4'-methylenebiscyclohexylene and R2 = methyl, which leads to the unit of formula: CH3

N FI O

Particularly preferably, in the formula (II '), R 1 represents the radical - isophorone-, R 2 = methyl and R 3 = - (CH 2) 2000-NH-isophorone-, which leads to the divalent unit of formula: x 62 * ONO NNNO HHOX Junction groups carrying a single isocyanate function may be of formula:

Wherein R 1 and R 2 are as defined above; and in particular: - R1 represents -isophorone-, - (CH2) 6-, -CH2CH (CH3) -CH2-C (CH3) 2 -CH2-CH2, 4,4'-methylenebiscyclohexylene, 2-methyl-1, 3-phenylene; and / or R2 is H, CH3, ethyl, C13H27, C7H15, phenyl, isopropyl, isobutyl, n-butyl, tert-butyl, n-propyl, or -CH (C2H5) (C4H9). Preferably, the linking groups may be chosen from the following groups: ## STR1 ## ## STR2 ## ## STR1 ## The linking groups carrying two isocyanate functional groups may be of the formula: ## STR2 ## wherein R 1, R 2 and R 3 are as defined herein above, and in particular: - R 1 represents -isophorone-, - (CH 2) 2-, - (CH 2) 6-, -CH 2 CH (CH 3) -CH 2 -C (CH 3) 2 -CH 2 -CH 2, 4,4 ' methylenebiscyclohexylene, 2-methyl-1,3-phenylene and / or - R2 represents H, CH3, ethyl, C13H27, C7H15, phenyl, isopropyl, isobutyl, n-butyl, tert-butyl, n-propyl, or CH (C2H5) (C4H9) and / or - R3 represents a divalent radical R '3-OC (O) -NH-R'4- in which R'3 and R'4, identical or different, represent a carbon radical divalent selected from a linear or branched C1-C30 alkyl group or a C4-C12 cycloalkyl group or a C4-C12 aryl group; and R '3 represents a C1-C4 alkylene, especially 1,2-ethylene and R'4 represents the divalent radical derived from isophorone.

A particularly preferred joining group is that of the formula: ## STR2 ## Among the linking groups carrying an imidazole group, there may be mentioned the following compound: ## STR2 ## In the invention, the linking groups can be attached to the oil via the functionalization of the linking group with an isocyanate or imidazole. According to another embodiment, it is possible to make the reverse reaction by prefunctionalizing the oil with a diisocyanate.

The supramolecular oils according to the invention can in particular respond to the following structures: functional octyldodecanol ureidopyrimidone of structure: Or of structure: functionalized diisostearyl maleate ureidopyrimidone of structure: ## STR2 ##

isostearyl (## STR2 ##) ## STR2 ## wherein isostearyl or of structure: ## STR2 ##

isostearyl OO NNN / NO II OO ~ OHH 1 isostearyl - functionalized castor oil ureïdopyrimidone structure: X 00 O 0 ~ NO 0ùisostéaryl isostéaryl Or structure OH - 2-hexyl decanol functionalized ureïdopyrimidone structure: Or structure o ON - the decyl-2 tetradecanol functionalized ureidopyrimidone structure: Or structure O Nid NNN) N \ O .KHH 6610 Similarly, the supramolecualire waxes are likely to be obtained by reaction between: - at least one wax carrying at least one reactive functional group selected from OH or COOH, and - at least one linking group capable of establishing hydrogen bonds with one or more joint joining groups, each pairing of a joining group involving at least 4 bonds hydrogen, said junction group carrying at least one so-called complementary reactive function, capable of reacting with the reactive function carried by the wax, ledi junction group comprising at least one unit of formula (I ') or (II') as defined above.

The wax that can be used to prepare the supramolecular wax according to the invention is a lipophilic fatty substance or a lipophilic fat mixture, crystalline at 25 ° C., solid at ambient temperature and at atmospheric pressure (25 ° C., 1 ° C.). ATM.); preferably reversible solid / liquid state change, and generally having a melting temperature above 40 ° C, more preferably above 55 ° C, and more preferably above 75 ° C, and up to 200 ° C , especially up to 120 ° C. By bringing the wax to its melting temperature, it is possible to render it miscible with oils and to form a homogeneous mixture microscopically, but by bringing the temperature of the mixture to room temperature, a recrystallization of the wax is obtained in the oils of the mixture. The wax that may be used in the context of the present invention thus has at least one reactive functional group capable of reacting with the complementary reactive function carried by the linking group, in particular capable of reacting chemically with the isocyanate groups borne by the group of junction; preferably, this function is an OH or COOH function. Preferably, the wax carries only OH functions, preferably primary or secondary OH functions, and even more preferably only primary.

The waxes that may be used in the context of the present invention may be of vegetable, mineral, animal or synthetic origin. They can be chosen from, alone or as a mixture,: linear long-chain alcohols of formula CH3- (CH2) n-OH with n ranging from 18 to 60. Such fatty alcohols are commercially available, for example at New Phase Technologies or Petrolite. It may be mixtures of long-chain linear alcohols that can be obtained by a polymerization process making it possible to obtain polymers with a very low polydispersity index (Mw / Mn of less than 1.1). Their weight average molar mass is generally between 350 and 1000. - lanolin optionally hydrogenated, hydroxylated or acetylated, lanolin alcohols, lanolin fatty acids and acetylated lanolin alcohol; - Carnauba wax, Candelilla wax, beeswax, kapok wax, spermacéti, Ouricury wax, rice wax, hydrogenated jojoba wax, Alfa wax or Japan wax , waxes of cork or sugarcane fibers, cocoa butter, paraffin waxes, lignite waxes, petrolatum wax, liquid petrolatum wax; microcrystalline waxes, ceresin, ozokerite, upright wax, - polyethylene waxes, waxes obtained by Fisher-Tropsch synthesis, - linear esters resulting from the reaction of a saturated C10-C40 carboxylic acid and a saturated C10-C40 alcohol, cetyl alcohol, stearyl alcohol, calcium lanolates or stearates. silicone waxes, such as, for example, polyether silicone waxes, and alkyl or alkoxydimethicones having from 16 to 45 carbon atoms. Preferably, the waxes that can be used in the present invention are chosen from beeswax, carnauba wax and jojoba wax, and mixtures thereof. The UV-active agents may also be UV filters and may be one of the following formulas (Ib) or (IIb): ## STR1 ## ## EQU1 ## in which: ## STR1 ##

In which: -n = 1.2 or 3; - m = 0 or 1; - w = 0 or 1; - RI and R2, identical or different within the same formula, represent hydrogen, -OH, -NRR '; or a linear, branched and / or cyclic, C1-C18, saturated or unsaturated, optionally aromatic, carbon-containing group, which may contain one or more heteroatoms chosen from O, S and N; RI can also be the radical: -Z-Al; Z represents a multivalent radical (divalent to tetravalent, according to the value of n) chosen from: (i) a linear or branched, in particular saturated or unsaturated C 1 -C 32 hydrocarbon-based radical; optionally interrupted or substituted, one or more times, with an optionally aromatic C3-C12 (hetero) ring; or (ii) an optionally aromatic C3-C12 hydrocarbon radical (hetero) cyclic; optionally substituted by one or more carbon radicals, in particular linear or branched hydrocarbon radicals, saturated or unsaturated, in C1-C32; said radical Z possibly being: (1) substituted with 1 to 12 groups chosen from -OH, -SO3R, -OSO3R, -SO3H, -OSO3H, -OO0H, -OO0R, -CONRR 'and -N + RR'R " and / or (2) interrupted by 1 to 5 groups selected from divalent groups: - S-, -NH- (or = NH), -O-, -C (O) -, -SO2-, / \ R ## STR1 ## where Ra = H or halogen, in particular Cl, or C 1 -C 6 alkyl; R, R 'and R ", which may be identical or different, are H or a linear or branched C1-C12 alkyl radical; it being understood that said radical Z comprises at least one heteroatom chosen from N, O and S; Z1 is the divalent radical Z; Z2 is a divalent C1-C32 alkyl radical, linear or branched; with the proviso that when w = 0, then the radical Al and the diradical A2 can not end with a nitrogen. monoradicals Al corresponding to one of the following formulas (Illa) to (XIIIa): a) para-aminobenzoate:

(R2) wherein R1 1 w = 1; b) cinnamate, benzalmalonate or cyanoacrylate (IIIa) H w = 1; N (IVa) c) benzophenone w = 1; N 1 H (Va) d) benzylidene camphor: w = 1; N1 H (Vla) w = 0; (Vila) w = 0; (Villa) e) benzotriazole: w = 1; 71 (IXa) H 1 N HO w = 1; HO (Xa) w = 0; (XIa) O w = 0; e) s-triazine: A3 ~ / N ~ w = 0; ---, AAAp NON A3 A3 (Xlla) (Xllla) with the radicals A3, identical or different, representing the radicals AI of the formulas (IIIa), (IVa), (Va), (Vla) or (IXa); the diradicals A2 corresponding to one of the following formulas (IIIb) to (VIIIb): a / para-amino benzoate: R2) P w = 0; (IIIb) Ob / cinnamate; benzalmalonate or cyanoacrylate: w = 0; (IVb) c / benzophenone: w = 0; (Vb) OH 0 0 in which: - R 'represents a C 1 -C 30 alkyl or C 3 -C 30 alkenyl radical, linear or branched, which may carry one or more hydroxyl substituents and which may contain in the carbon chain an alkyl ring; one or more heteroatoms selected from oxygen, nitrogen and silicon, an optionally substituted C6-C20 aryl radical; R2 represents a linear or branched C1-C10 alkoxy radical, a linear or branched C1-C10 alkyl radical, a linear or branched C2-C8 alkenyl radical, or -SO1 (CH3) 3, two adjacent R2s which can together, form an alkylidene dioxy group in which the alkylidene group contains 1 to 2 carbon atoms, - p is 0, 1 or 2, - R3 is hydrogen, a C1-C4 alkyl radical, or a radical selected from - (C = O) XR ', -ON, - (C = O) R', -SO 2 R 4 with R 'having the same definition as above and 20 - R4 represents a linear or branched C1-C12 alkyl radical or an optionally substituted C 6 -C 20 aryl radical; R 5 represents a C 2 -C 8 alkyl diradical; X represents oxygen or a radical NR 6 with R 6 being a linear or branched C 1 -C 6 alkyl radical. Compounds of formulas (Ib) or (IIb) in which: - nest1; - mest0; d / benzylidene camphor: O O -S w = 0; (VIb) -R1 isHouZ-Al; R2 is the C1-C3 alkyl radical; the radical Z (or Zl) comprises at least one heteroatom chosen from N, O and S, preferably chosen from N and O, and still more preferably at least one nitrogen heteroatom, and preferably contains the divalent C2-C6 alkyl radical; , the divalent C 4 -C 12 cycloalkyl radical or the following divalent radicals: embedded image As particularly preferred active agent, it will be noted: those of formula of formula (Ib) and where AI corresponds to formula (IIIa): ## STR2 ## 1) IIIHHHOO (2) (3) - those of formula of formula (IIb) and where A2 corresponds to formula (IIIb): ## STR1 ## ## STR2 ## 5) - those of formula of formula (Ib) and wherein Al corresponds to formula (IVa) OHHHHHON v vNYNYN NYNYNNN ONNOHH (6) HHONNN`NNHHH - those of formula of formula (IIb) and where A2 corresponds to formula (IVb Embedded image wherein R 1 is as defined in formula (IVa): ## STR1 ## Y N N N N N N H H (9) (10) 10 75 H H H NYNIN

ONO - those of formula (Ib) and where Al corresponds to formula (IVa): ## STR2 ## where A2 corresponds to formula NOHHN

O (15)

those of formula (Ib) where Al corresponds to the formula (Va) HH (12) OHHHNNHHONO (16) - those of formula (Ib) and where Al corresponds to formula (VIa): HHH (17) NN ~ NyN ~ ---- HON` O - those of formula (lb) and where Al corresponds to the formula (Vila): HHHO, / .N NyN ~ / NO II II HON ~ O - those of formula (IIb) and where A2 has the formula (VIb): ## STR5 ## - those of formula (Ib) and wherein Al has the formula (IXa): ## STR2 ## H (20) o - those of formula (Ib) and where Al corresponds to formula (Xa): ## STR2 ## those of formula (Ib) and where AI corresponds to formula (Xllla) ) - those of formula (Ib) and wherein AI has the formula (Xlla) 0 L NNNN (22) HHON Name 1 ~ 1 NNN 1 1 1 HHHH (23) o (24) N l ~ _ INNN 1 1 1 HHH (25)

o o N o H H O N ~

NNNN N NNN I I I I I H H H N N H H H

N, H

(26) ## STR1 ## ## STR1 ## ## STR1 ## where ## STR2 ## ## STR1 ## where ## STR2 ## ## STR2 ## products of formulas (Ib) and (IIb) can be obtained respectively by re-action between a reactive function Y linked to the group A'1 or to the group A'2, respectively, with a reactive function W attached to Z1 of the derivative of formula (XIII), the two reactive functions being of course capable of reacting with each other.

The reactive functions W and Y may preferably be chosen from the following functions: isocyanate ùN = C = O; isothiocyanate -N = C = S; - -000Ra carboxylic acid or ester or COORb activated ester with Ra being H or a linear or branched C1-C4 alkyl radical, and more preferably a methyl or ethyl radical; and ORb being selected from phenoxy, 4-nitrophenoxy, 2,4,5-trichlorophenoxy and the following radicals: (28) Acyl O-halide, acyl imidazole or acyl benzotriazole of the formula: OO-acid anhydride, activated carbamic acid -NHCOX with X = Cl, imidazole or ORb with ORb as defined above; hydroxyl (OH) or activated hydroxyl, for example in O-tosylate form, primary or secondary amine -NHRa, where Ra is as defined above; Preferably, the precursor reactive functions of the bond between W and Y are chosen from isocyanate, amine or hydroxyl functions; A particular method of obtaining the derivative of formula (X111) is that described in the article by Katritzky et al., Comprehensive Organic Functional Group Transformations, Pergamon: Oxford, 1995, vol 6, pp.500-506 or else in Arkiv der Pharmazie, 314 (1), 34-41, 1981.

7 / hyaluronic acid The cosmetic active ingredient may also be a hyaluronic acid derivative, and comprise both (la) and (Ib) units: in which: - R1 represents OH or an -NH-R 'radical; -Z, - R2 represents H or a radical -C (O) -NH-R'-Z, with - R 'is a divalent alkyl radical, linear or branched, C1-C18, in particular C2-C14, or even C4- C10; or a single link; Z is a radical of formula (I): CH3

\ NH O (I) 10 ONNHNH

it being understood that at least one, preferably only one, of the radicals R 1 and R 2 comprises a radical Z.

Preferably, the ratio between the units (Ia) and the units (Ib) is such that the degree of functionalisation of the derivative is between 1 and 99%, better still between 1.5 and 60% and preferably between 2 and 30%. . Preferably, the derivatives according to the invention have a molecular weight of between 5,000 and 3,000,000 daltons. The hyaluronic acid derivatives may also be in the form of salts, in particular sodium or potassium salt.

The capsules according to the invention may be obtained by reaction between: on the one hand at least one capsule previously formed, bearing at least one reactive function, especially on the surface, said reactive function being able to be nu- key or electrophilic, and - on the other hand at least one linking group capable of establishing hydrogen bonds with one or more partner junction groups, each pairing of a junction group involving at least 3 hydrogen bonds, said group junction bearing at least one reactive function capable of reacting with the reactive function carried by said capsule, said joining group comprising at least one unit of formula (I) or (II) as defined below.

The previously formed capsule is preferably obtained by covalent, organic and / or inorganic polymerization. It can be obtained in particular by radical polymerization and / or by polycondensation. Mention may in particular be made of polyurethane, polyurea and / or polyurethane / polyurea capsules, crosslinked and obtained in particular by inter-facial polycondensation; such capsules are described in particular in application EP1837073.

The non-functionalized capsules may in particular be obtained by reacting at least two reagents, one of isocyanate type and the other of alcohol and / or amine type, at least one of these reagents carrying at least 3 identical or different, chosen for one of the isocyanate functions, and for the other of the hydroxyl and amine functions. This reagent ensures in particular the function of crosslinking agent.

According to a first variant embodiment, the capsule can be obtained by reacting a reagent of alcohol and / or amine type comprising at least three identical or different functions, chosen from hydroxyl and amine functional groups, with an isocyanate-type reagent comprising a alone, or even preferably two, isocyanate function (s). According to another variant embodiment, the capsule can be obtained by reacting a tri- or polyisocyanate with an alcohol and / or amine type reagent comprising only one, or even preferably two, identical or different functional groups. - Rents where appropriate, selected from the hydroxyl and amine functions.

Isocyanate-type Reagents The isocyanate-type reagents that can be used to form the capsules according to the invention may comprise one or more, and especially two or even three isocyanate functional groups. They may for example be chosen from aliphatic, cycloaliphatic, araliphatic, aromatic and heterocyclic di- or poly-isocyanates such as those described, for example, by W. SIEFKEN in Justus Liebigs Annalen der Chemie, 562, pages 75 to 136.

According to one embodiment of the invention, the isocyanate-type reagents can be chosen from diisocyanates, and in particular ethylene diisocyanate, 1,4-tetramethylene diisocyanate, 1,6-hexamethylene diisocyanate and the like. 2,4- or 2,4,4-trimethyl-1,6-hexamethylene diisocyanate, 1,12-dodecane diisocyanate, cyclobutane 1,3-diisocyanate, cyclohexane 1,3- and 1,4-diisocyanate and all mixture of its isomers, 4,4'-methylenebis (cyclohexyl) diisocyanate, 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane, 2,4- and 2,6-hexanehydrotolylene diisocyanate and any mixture of its isomers, hexahydro-1,3- and 1,4-phenylene diisocyanate, perhydro-1,4'- and 4,4'-diphenylmethane diisocyanate, 1,3- and 1,4-phenylene diisocyanate, 2,6-tolylene diisocyanate and any mixture of its isomers, 4,4'-diphenylmethane diisocyanate (4,4'-MDI), 1,5-naphthylene diisocyanate, m-xylylene diisocyanate, tetramethylxylylene iisocyanate, m- and p-isocyanatophenylsulfonyl isocyanates, lysine alkyl ester diisocyanate wherein the alkyl is C 1 -C 10 or 2-butyl-2-ethylpentamethylene diisocyanate, and mixtures thereof. According to another embodiment of the invention, the isocyanate-type reagents can comprise at least three isocyanate functional groups and thus act as a crosslinking agent. They can then in particular be chosen from triisocyanates, for example triphenylmethane 4,4 ', 4 "-triisocyanate, or 4-isocyanatomethyl-1,8-octanemethylene diisocyanate or else from polyisocyanates, and in particular polyphenylpolymethylene polyisocyanates, perchlorinated aryl polyisocyanates, the polyisocyanates having carbodiimide groups, the polyisocyanates having allophanate groups, the polyisocyanates having isocyanurate groups, the poly-isocyanates having acylated urea groups, the polyisocyanates having bis-urea groups, the poly-isocyanates prepared by a telomerisation reaction, the polyisocyanates having ether groups, the isocyanate reaction products mentioned above with acetals, the polyisocyanates containing polymeric fatty acid radicals and any mixture of the polyisocyanates mentioned therein. -above.

It is also possible to use mixtures of the said isocyanates, that is to say mixtures of aliphatic isocyanates, mixtures of aromatic isocyanates, mixtures of aliphatic and aromatic isocyanates, as isocyanate type reactant. and in particular mixtures which optionally include modified diphenylmethane diisocyanates.

As an illustration of these mixtures, there may be mentioned biurethic hexamethylene diisocyanate, mixed with 4,4'-diphenylmethane isocyanate, and optionally with 2,4-diphenylmethane isocyanate, trimerized hexamethylene diisocyanate, in mixture with the 4 , 4'-diphenylmethane diisocyanate, and optionally with 2,4-diphenylmethane diisocyanate.

It is also possible to use, as isocyanate type reagent, oligo or polyisocyanates that can be prepared from the di- or polyisocyanates mentioned above or their mixtures by binding them by means of urethane, allophanate or urea structures. , bisurea, amide, isocyanurate, carbodiimide, uretonimine, oxadiazinetrione or iminooxadiazinedione. Mention may also be made of di- or polyisocyanates, such as mixtures of monomers diphenylmethane diisocyanates and oligomers diphenylmethane diisocyanates (also called MDI polymers), 2,4-tolylene diisocyanate (2,4-TDI), 2,4'-diphenylmethane diisocyanate (2,4'-MDI), triisocyanatotoluene, isophorone diisocyanate (IPDI), 2-butyl-2-ethylpentamethylene diisocyanate, 2-isocyanatopropylcyclohexyl isocyanate, 3 (4) -isocyantomethyl 1-methylcyclohexyl isocyanate, 1,4-diisocyanato-4-methylpentane, 2,4'-methylenebis (cyclohexyl) diisocyanate and 4-methylcyclohexane 1,3-diisocyanate (H-TDI), which can be used more particularly as an isocyanate type reagent. Thus, according to a preferred embodiment, the isocyanate-type reagents that can be used to form the capsules according to the invention are chosen from di- or polyisocyanates, and in particular mixtures of monomers diphenylmethane diisocyanates and oligomers diphenylmethane diisocyanates (MDI polymers). ), tolylene diisocyanate (TDI), and especially 2,4-tolylene diisocyanate and 2,6-tolylene diisocyanate, and their mixture, 4,4'-diphenylmethane diisocyanate (4,4'-MDI) or isophorone diisocyanate (IPDI).

The amount of isocyanate reagent to be used for carrying out the invention varies within the range customarily used in interfacial polyaddition processes.

Reagents of Alcohol and / or Amine Type The reagents of alcohol and / or amine type that can be used to form the capsules according to the invention may comprise one or more, and in particular two or even three identical or different functions chosen from hydroxyl functions and amine. They may for example be chosen from alcohol-type reagents, amine-type reagents and aminoalcohol-type reagents, used alone or as a mixture with one another. They preferably have a molecular weight ranging from 200 to 4000 g / mol.

The alcohol-type reagents may comprise one or more, and especially two or even three hydroxyl functions.

More particularly, these reagents may be a polyol. By polyol is meant in the sense of the invention any organic molecule having in its chemical structure at least two hydroxyl groups -OH. The polyol may be, for example, a hydrocarbon compound, linear, branched or cyclic, saturated or unsaturated bearing at least two hydroxyl functions. The polyol may in particular be a (hydro) carbon compound preferably comprising from 2 to 300 carbon atoms, and bearing at least two hydroxyl groups, preferably from 2 to 10 hydroxyl groups. Preferably, it is a compound (hydro) carbon having 3 to 32 carbon atoms, and especially 4 to 18 carbon atoms, or even 4 to 12 carbon atoms. In particular, the polyol may be a compound having 2 to 18 carbon atoms and 2 to 6 hydroxyl functions. According to one embodiment of the invention, the alcohol-type reagents can be chosen from diols and in particular glycol derivatives, such as diethylene glycol, dipropylene glycol, ethylene glycol, propylene glycol, propylene glycol and the like. hexylene glycol, isoprene glycol, butylene glycol, and pentylene glycol, or else butane diol, propane-1,2 diol, pentanediols and in particular 1,2-pentanediol, dodecanediol, or mixtures thereof. According to another embodiment of the invention, the alcohol-type reagents can comprise at least three hydroxyl functions, and thus act as a crosslinking agent. They can then be chosen in particular from trimethylpropane, glycerol, pentaerythritol, 1,2,3-trihydroxyhexane, erythritol, arabitol, adonitol, dulcitol and sorbitol, polymers and copolymers of glycerol. such as, for example, hexaglycerol and diglycerol, glycerol derivatives, for example butyldiglycol, polyglyceryl-3-diisostearate and castor oil, glycol derivatives, for example polyethylene glycols and especially polyethylene glycols (PEG) having from 4 to 150 ethylene glycol units, such as PEG-400, PEG-600, PEG-800 and PEG-1200, polypropylene glycols, copolymers of ethylene glycol and propylene glycol or sugars such as glucose, fructose, xylose, trehalose, sucrose, maltose, lactose, and mixtures thereof. In a preferred manner, the alcohol-type reagents that are useful for acting as crosslinking agents are chosen from trimethylpropane, glycerol, pentaerythritol and sugars. The polyol may also be a polyether alcohol of average molecular weight ranging from 150 to 600, such as polyethylene glycol 300 and polyglycerine 500. It is also possible to use any mixture of the polyols mentioned above. The polyol may also be selected from non-etherified polyols and unesterified polyols. According to a preferred embodiment, the alcohol-type reactants are chosen from diols such as, for example, diethylene glycol, polyols such as, for example, polyethylene glycols, and in particular those having from 4 to 150 ethylene glycol units, or even mixtures of polyethylene glycols and diethylene glycol.

The amine reagents may comprise one or more, and especially two or even three amine functions. According to one embodiment of the invention, the amine reactants may be chosen from diamines, for example diaminoethane, diaminopropanes, diaminobutanes, diaminohexanes, piperazine, 2,5-dimethylpiperazine, amino-3-aminomethyl-3,5,5-trimethylcyclohexane (isophorone diamine, IPDA), 4,4'-diaminodicyclohexylmethane, 1,4-diaminocyclohexane, aminoethylethanolamine, hydrazine or hydrate d hydrazine.

According to another embodiment of the invention, the amine-type reagents can comprise at least three amine functions and thus act as a crosslinking agent. They can then in particular be chosen from triamines, such as, for example, guanidine, diethylene triamine or 1,8-diamino-4-aminomethyloctane.

The amine reagents can also be used in the form of ketimines, ketazines or corresponding amine salts. According to a preferred embodiment, the amine reactants comprise at least one amino group selected from primary amines and secondary amines of NHR type, wherein R represents an alkyl group having 1 to 8 carbon atoms.

The amino alcohol type reactants may comprise at least two different functions chosen from amine and hydroxyl functions. According to one embodiment of the invention, the aminoalcohol type reactants can be difunctional, that is to say comprise two functions, namely an amine function and a hydroxyl function. According to another embodiment of the invention, the aminoalcohol type reactants can comprise at least three functions, and thus act as a crosslinking agent. They may for example comprise a single hydroxyl function (respectively amine) and at least two amine functions (respectively hydroxyl), or two hydroxyl functions (respectively amine) and at least one amine function (respectively hydroxyl). As the aminoalcohol type reagent that can be used in the present invention, mention may notably be made of ethanolamine and triethanolamine.

As specified above, the capsules according to the invention can, according to a first alternative, be obtained by reacting at least one diisocyanate with at least one reagent of alcohol and / or amine type carrying at least three functions, identical or different, chosen from the hydroxyl and amine functions, and acting as a crosslinking agent, optionally in the presence of at least one diol and / or at least one diamine and / or at least one difunctional amino alcohol. Preferably, the isocyanate type reactant is a diisocyanate chosen from mixtures of diphenylmethane diisocyanate monomers and of diphenylmethane diisocyanate oligomers (MDI polymers), tolylene diisocyanate (TDI) and in particular 2,4-tolylene diisocyanate and 2-diisocyanate. , 6-tolylene diisocyanate, and their mixture, 4,4'-diphenylmethane diisocyanate (4,4'-MDI) or isophorone diisocyanate (IPDI). As reagent acting as crosslinking agent, it is possible, for example, to use the triols, polyols, triamines and polyamines described above. Preferably, the reagent acting as crosslinking agent is chosen from triols, such as, for example, trimethylolpropane, glycerol and pentaerythritol, and polyols, for example sugars such as glucose, fructose, xylose, trehalose, sucrose, maltose and lactose. Preferably, the diamines comprise at least one amino group selected from primary amino groups and secondary amines of -NHR type, wherein R represents an alkyl group having 1 to 8 carbon atoms.

Preferably, the capsules are obtained by interfacial polymerization. Interfacial polycondensation is a polymerization reaction that occurs at the interface of two immiscible liquids, at least one of which contains a suitable polyfunctional reagent. Preferably, at least one monomer and / or reagent is soluble in the first phase, and at least one monomer and / or reagent is soluble in the second phase, immiscible with said first phase In the case where this reaction is carried out without removal of secondary products, it is also called interfacial polymerization. This reaction may in particular be carried out in an emulsion, in particular biphasic or multiphasic emulsion, at the interface between the immiscible phases. The reaction may be carried out in an oil-in-water or water-in-oil emulsion, or in a multiple emulsion of the E / H / E or H / E / H type. According to a preferred embodiment, the emulsion is of the oil-in-water type.

The capsules are crosslinked. This crosslinking can be obtained by reaction of the polymer chains with a reagent of functionality at least equal to 3, called crosslinking agent. The capsules according to the invention, before functionalization, preferably have a size of between 0.5 and 1200 microns, in particular between 0.6 and 30 microns.

In a particular embodiment, the capsules may comprise an encapsulated active. Said encapsulated active agent may especially be a dyestuff, in particular a pigment, that is to say a solid, white or colored particle, naturally insoluble in the hydrophilic and lipophilic liquid phases usually used in cosmetics, or rendered insoluble by formulation under lacquer form for example. Said pigment is preferably at least partly organic or even totally organic. It can also be mineral. The capsules preferably comprise 0.5 to 80% by weight, especially 1 to 70% by weight, especially 20 to 65% by weight, or even 30 to 60% by weight of pigment relative to the total weight of the capsule. Mention may in particular be made of carbon black, pigments of D & C, FD & C type and their lacquers, and especially those known under the names D & C Blue No. 4, D & C Brown No. 1, D & C Green No. 5, D & C Green No. 6 , D & C Orange # 4, D & C Orange # 5, D & C Orange # 10, D & C Orange # 11, D & C Red # 6, D & C Red # 7, D & C Red # 17, D & C Red # 21, D & C Red No. 22, D & C Red No. 27, D & C Red No. 28, D & C Red No. 30, D & C Red No. 31, D & C Red No. 33, D & C Red No. 34, D & C Red No. 36, D & C Purple No. ° 2, D & C Yellow No. 6, FDCBIue 1, D & C Yellow No. 7, D & C Yellow No. 8, D & C Yellow No. 10 or D & C Yellow No. 11; as well as their lacquers, in particular lacquers based on barium, strontium, calcium, aluminum, or diketopyrrolopyrroles. Mention may also be made, as a dyestuff, of inorganic pigments, optionally surface-treated and / or coated, and especially of titanium dioxide, zirconium or cerium oxides, zinc oxides, iron oxides (black, yellow or red) or chromium, manganese violet, ultramarine blue, chromium hydrate and ferric blue, or metallic powders such as aluminum powder, copper powder, gold powder and the silver powder. It is also possible to mention optical effect pigments such as particles comprising an organic or inorganic, natural or synthetic substrate, for example glass, acrylic resins, polyester, polyurethane, polyethylene terephthalate, ceramics or aluminas. said substrate being coated or not with metallic substances such as aluminum, gold, silver, platinum, copper, bronze, or metal oxides such as titanium dioxide, iron oxide, chromium oxide. Mention may also be made among dyestuffs, nacres, that is to say iridescent pigments especially produced by some shellfish in their shell, or synthesized. The nacres can be chosen from mica coated with titanium or bismuth oxychloride, micatitane coated with iron oxides, mica titanium coated with ferric blue or chromium oxide, micatitane coated with an organic pigment, as well as pearlescent pigments based on bismuth oxychloride. It is also possible to use interferential pigments, in particular liquid crystal or multilayer pigments; or pigments having a silica microsphere-type structure containing iron oxide. The dyestuffs may also be (soluble) dyes, among which those listed in Annex IV, such as D & C red27, D & C red21, D & C orange No. 5, D & C yellow 11, D & C green 6, D & C violet 2, Red 4, Red 6, D & C Red22, Red 28, D & C Red30, Red 33, Orange 4, Yellow 5, Yellow 6, D & C Yellow No. 8, D & C Green 5, FDC Green 3, FDC Blue 1; Beta Vulgaris; Bismuth Oxychloride; Bromocresol Green; Bromothymol Blue; Paprika oleoresin / Capsorubin; Caramel; Cl 10006; Cl 10020; Cl 10316, CI 11920; Cl 12010; Cl 12150; Cl 12700; Cl 13015; Cl 14270; Cl 14700; Cl 14720; Cl 14815; Cl 15620; Cl 15980; Cl 15985; Cl, 16035; Cl 16185; Cl 16230; Cl 16255; Cl 16290; Cl 17200; Cl 18050; Cl 18130; Cl 18690; Cl 18736; Cl 18820; Cl 18965; Cl 19140; Cl 20170; Cl 20470; Cl 21230; Cl 24790; Cl 26100; Cl 27290; Cl 27755; Cl 28440; Cl 40800; Cl 40820; Cl 40825; Cl 40850; Cl 42045; Cl 42051; Cl 42053; Cl 42080; Cl 42090; Cl 42100; Cl 42170; Cl 42510; Cl 42520; Cl 42735; Cl 44045; Cl 44090; Cl 45100; Cl 45190; Cl 45220; Cl 45350; Cl 45370; Cl 45370; Cl 45380; Cl 45380; Cl 45380; Cl 45396; Cl 45405; Cl 45410; Cl 45425; Cl 45430; Cl 47000; Cl 47005; Cl 50325; Cl 50420; Cl 59040; Cl 60725; Cl 60730; Cl 61565; Cl 61570; Cl 61585; Cl 62045; Cl 73015; Cl 73900; Cl 75100; Cl 75120; Cl 75125; Cl 75130; Cl 75135; Cl 75300; Cl 75810; Cl 77713; Cl 77820; Cl 77891; Cl 77947; Cl 40215; Cl 74180; Cl 75470; AC I D RED 195; Cl 19140; Cl 45370; Cl 47005; Cl 75810; Cl 75810; riboflavin; and their mixtures. The encapsulated asset may also be a gas, such as air, carbon dioxide or nitrogen; and / or a constituent chosen from cosmetic oils and waxes, in particular mineral, animal, vegetable or synthetic waxes, and cosmetic active ingredients such as vitamins, UV filters, perfumes, moisturizers and skincare active ingredients. In general, one can consider any type of encapsulable asset.

The capsules may be prepared by interfacial polymerization, especially as described in EP1837073. They can also be of polyurethane, polyester, polyamide or polycarbonate type. They can also be prepared by radical polymerization and be of the C 1 -C 16 alkylpoly (meth) acrylate type, in particular PMMA; or polystyrene or their copolymers. The capsules may also be wholly or partially inorganic, for example silica, TiO2, ZrO2, alumina, SnO2, iron oxide, or mixtures thereof; they may also be of clay type, sepiolite, montmorillonite, or mixtures thereof.

The preformed capsule thus prepared, by covalent polymerization, organic or inorganic, must carry on the surface at least one reactive function, which may be nucleophilic or electrophilic, and in particular selected from OH, C = O (carbonyl) and NH 2, and which must be able to react with a complementary function carried by the joining group. In the end, the functionalized capsules according to the invention therefore comprise at least a part coming from the preformed capsule, and at least part from the joining group, said part comprising at least one unit of formula (I) or (II) . In particular, said parts are connected by a covalent bond, in particular formed during the reaction between the reactive functions carried by the preformed capsule and the reactive functions carried by the joining group.

The joining group that can be used to prepare the functionalized capsule according to the invention carries at least one reactive function and comprises at least one unit of formula (I) or (II) as defined below. The reactive functional group can be in particular of the isocyanate or imidazole type, capable of reacting with the reactive functions of the capsule, in order to form a covalent bond, in particular of the urea or urethane type, between said capsule and said joining group. Said linking group is capable of establishing H bonds with one or more joint joining groups of identical or different chemical nature, each pairing of a linking group involving at least 3 H (hydrogen) bonds, preferably at least 4 H bonds, preferably 4 H bonds.

For the purposes of the invention, the term "linking group" is intended to mean any functional group comprising donor groups or acceptors of H bonds and capable of establishing at least three H bonds, preferably at least four H bonds, preferably four H bonds, with a partner junction group, identical or not.

For the purposes of the invention, the term "partner joining group" means any joining group capable of establishing H bonds with one or more joining groups of the same or another polymer according to the invention. The joining groups can be of identical or different chemical nature. If they are identical, they can then establish H links between them and are then called self-complementary join groups. If they are different, they are chosen in such a way that they are complementary with respect to the H interactions. The linking group also comprises at least one monovalent unit of formula (I) and / or at least one divalent unit of formula (II), as defined below: in which: R1 and R3, which may be identical or different, represent a compound of formula (II); divalent carbon radical chosen from (i) a linear or branched C1-C32 alkyl group, (ii) a C4-C16 cycloalkyl group and (iii) a C4-C16 aryl group; optionally comprising 1 to 8 heteroatoms selected from O, N, S, F, Si and P; and / or optionally substituted with an ester, amide or a C1-C12 alkyl radical; or a mixture of these groups; R2 represents a hydrogen atom or a linear, branched or cyclic, saturated or unsaturated, optionally aromatic, C1-C32 hydrogen or carbon radical, which may include one or more heteroatoms selected from O, N; , S, F, Si and P. In particular, the radical R 1 may especially be: a linear or branched C2-C12 divalent alkylene group, in particular a 1,2-ethylene, 1,6-hexylene, 1 group; 4-butylene, 1,6- (2,4,4-trimethylhexylene), 1,4- (4-methylpentylene), 1,5- (5-methylhexylene), 1,6- (6-methylheptylene), 1, 5- (2,2,5-trimethylhexylene), 1,7- (3,7-dimethyloctylene). a C 4 -C 12 divalent cycloalkylene or arylene group, chosen in particular from the following radicals: isophorone, tolylene, 2-methyl-1,3-phenylene, 4-methyl-NH-C-NH-RI; Methyl-1,3-phenylene; 4,4'-méthylènebiscyclohexylène; bisphénylèneméthylène; or of structure: 4,4- * CH2 Preferably, R1 represents -isophorone-, - (CH2) 6- or 4,4'-methylenebiscyclohexylene.

In particular, the radical R 2 can especially be H, or else: a C 1 -C 32 alkyl, in particular a C 1 -C 16 or even a C 1 -C 10 alkyl group; a C4-C12 cycloalkyl group; a C4-C12 aryl group; an aryl (C 4 -C 12) C 1 -C 18 alkyl group or a C 1 -C 4 alkoxy group; An arylalkoxy group, in particular a (C 1 -C 4) aryl alkoxy group; a C4-C12 heterocycle or a combination of these radicals, which may optionally be substituted by an amino, ester and / or hydroxyl function. Preferably R2 is H, CH3, ethyl, C13H27, C7H15, phenyl, isopropyl, isobutyl, n-butyl, tert-butyl, n-propyl, or -CH (C2H5) (C4H9).

Preferably, R3 represents a divalent radical R '3-OC (O) -NH-R'4- in which R'3 and R'4, identical or different, represent a divalent carbon radical chosen from a linear alkyl group or branched C1-C32 or a C4-C16 cycloalkyl group or a C4-C16 aryl group; or their mixture. In particular, R '3 and R' 4 may represent methylene, 1,2-ethylene, 1,6-hexylene, 1,4-butylene, 1,6- (2,4,4-trimethylhexylene), 1,4 (4-methylpentylene), 1,5- (5-methylhexylene); 1,6- (6-méthylheptylène); 1,5- (2,2,5-trimethylhexylene), 1,7- (3,7-dimethyloctylene); 4,4'-méthylènebiscyclohexylène; 2-methyl-1,3-phenylene; 4-methyl-1,3-phenylene; 4,4'-bisphénylèneméthylène; 1,2-tolylene, 1,4-tolylene, 2,4-tolylene, 2,6-tolylene; 1,5-naphthylene; tetramethylxylylene; isophorone. In particular, R'3 can represent a C1-C4 alkylene, especially 1,2-ethylene. Preferably, R'4 may represent the divalent radical derived from isophorone.

In particular, R3 can be of structure: Isophorone- means the divalent radical of structure: ## STR2 ## In a particularly preferred manner, in formula (I), there can be: ~ = -isophorone-, R2 = methyl, which leads to the unit of formula: ## STR2 ## R 2 = methyl, which leads to the unit of formula: HH 1 1 ONN NH ## STR5 ## wherein R 2 = isopropyl, which leads to the unit of formula: ## STR1 ## and R 2 = methyl, which leads to the formula motif: 91 CH3

N FI O

Particularly preferably, in the formula (II), R 1 represents the radical - isophorone -, R 2 = methyl and R 3 = - (CH 2) 2000-NH-isophorone -, which leads to the divalent unit of formula: x 92 * ONO NNNO HHOX The joining groups carrying a single isocyanate function can be of formula:

Wherein R 1 and R 2 are as defined above; and in particular: - R1 represents -isophorone-, - (CH2) 6-, -CH2CH (CH3) -CH2-C (CH3) 2 -CH2-CH2, 4,4'-methylenebiscyclohexylene, 2-methyl-1, 3-phenylene; and / or R2 is H, CH3, ethyl, C13H27, C7H15, phenyl, isopropyl, isobutyl, n-butyl, tert-butyl, n-propyl, or -CH (C2H5) (C4H9). Preferably, the linking groups may be chosen from the following groups: ## STR1 ## ## STR2 ## ## STR1 ## The linking groups carrying two isocyanate functional groups may be of the formula: ## STR2 ## wherein R 1, R 2 and R 3 are as defined herein above, and in particular: - R 1 represents -isophorone-, - (CH 2) 2-, - (CH 2) 6-, -CH 2 CH (CH 3) -CH 2 -C (CH 3) 2 -CH 2 -CH 2, 4,4 ' methylenebiscyclohexylene, 2-methyl-1,3-phenylene and / or - R2 represents H, CH3, ethyl, C13H27, C7H15, phenyl, isopropyl, isobutyl, n-butyl, tert-butyl, n-propyl, or CH (C2H5) (C4H9) and / or - R3 represents a divalent radical R '3-OC (O) -NH-R'4- in which R'3 and R'4, identical or different, represent a carbon radical divalent selected from a linear or branched C1-C30 alkyl group or a C4-C12 cycloalkyl group or a C4-C12 aryl group; and R '3 represents a C1-C4 alkylene, especially 1,2-ethylene and R'4 represents the divalent radical derived from isophorone.

A particularly preferred joining group is that of the formula: ## STR2 ## Among the linking groups carrying an imidazole group, there may be mentioned the following compound: ## STR2 ## In the invention, the linking groups can be attached to the capsule by functionalizing the linking group with an isocyanate or imidazole. According to another embodiment, it is possible to make the reverse reaction by prefunctionalizing the capsule with a diisocyanate.

In a first mode of preparation, the functionalized capsule according to the invention may result from the chemical reaction between a preformed capsule carrying a reactive function and a linking group carrying a complementary reactive function. The capsule may be prepared by the methods usually employed by those skilled in the art to form a urethane linkage between the free OH functions of the capsule and the isocyanate functions carried by the linking group. By way of illustration, a general method of preparation consists in: heating the capsule carrying at least one reactive function, in particular OH, at a temperature which may be between 25 and 140 ° C., in particular between 60 ° C. and 130 ° C. VS; add the junction group carrying the reactive functions, in particular isocyanate; optionally stirring the mixture, under a controlled atmosphere, at a temperature of the order of 100-130 ° C .; for 1 to 24 hours; - follow by infrared spectroscopy, the disappearance of the isocyanate characteristic band (between 2500 and 2800 cm-1) so as to stop the reaction to the total disappearance of the peak, then allow the final product to return to ambient temperature.

The reaction can be carried out in the presence of a solvent, especially methyltetrahydrofuran, tetrahydrofuran, toluene or butyl acetate. It is also possible to add a conventional catalyst for urethane bond formation. By way of example, mention may be made of dibutyl tin dilaurate.

According to the second embodiment, the reaction may comprise the following steps: (i) functionalization of the capsule with a diisocyanate, and then (iia) either reaction with 6-methylisocytosine: (iib) or reaction with 5-hydroxyethyl-6 -methyl isocytosine: An illustration of such a reaction is given in FOLMER et al., Adv. Mater, 12, 874-78 (2000).

Preferably, the polymer bearing at least one unit of formula (Ia), or the mixture of such polymers, may be present in the composition in an amount of 0.1 to 10% by weight, especially 1 to 5% by weight, relative to the total weight of the composition. Preferably, the cosmetic active agent carrying at least one unit of formula (Ia), or the mixture of such active agents, may be present in the composition in an amount of 0.01 to 50% by weight, in particular 0.01 to 10% by weight. % by weight, relative to the total weight of the composition.

The compositions may also comprise a cosmetically acceptable medium, that is to say compatible with keratin materials such as the skin of the face or body, eyelashes, eyebrows, lips and nails.

They may advantageously comprise a liquid fatty phase, which may constitute a solvent medium for the polymers according to the invention, and which may comprise at least one compound chosen from oils and / or solvents of mineral, animal, vegetable or synthetic origin, carbonated Hydrocarbons, fluorinated and / or silicoated, volatile or nonvolatile, alone or in combination in that they form a homogeneous and stable mixture and are compatible with the intended use. For the purposes of the invention, the term "volatile" is intended to mean any compound capable of evaporating on contact with keratin materials, or the lips, in less than one hour at ambient temperature (25 ° C.) and atmospheric pressure ( 1 atm). In particular, this volatile compound has a non-zero vapor pressure, at ambient temperature and atmospheric pressure, in particular ranging from 0.13 Pa to 40 000 Pa (10-3 to 300 mmHg), in particular ranging from 1, 3 Pa at 13,000 Pa (0.01 to 100 mmHg), and more particularly ranging from 1.3 Pa to 1300 Pa (0.01 to 10 mmHg). By contrast, the term "non-volatile" means a compound remaining on the keratin materials or the lips at room temperature and atmospheric pressure, at least one hour and having in particular a vapor pressure of less than 10 -3 mmHg (0, 13Pa).

Preferably, the cosmetically acceptable medium may comprise, in a liquid fatty phase, at least one oil and / or a solvent which may be chosen from, alone or as a mixture: 1 / esters of monocarboxylic acids with monoalcohols and polyalcohols; advantageously, said ester is a C12-C15 alkyl benzoate or has the following formula: R'1-COO-R'2 where: R'1 represents a linear or branched alkyl radical of 1 to 40 carbon atoms, preferably from 7 to 19 carbon atoms, optionally comprising one or more ethylenic double bonds, optionally substituted and whose hydrocarbon chain may be interrupted by one or more heteroatoms chosen from N and O and / or one or more carbonyl functions, and R 2 represents a linear or branched alkyl radical of 1 to 40 carbon atoms, preferably 3 to 30 carbon atoms and more preferably 3 to 20 carbon atoms, optionally comprising one or more ethylenic double bonds, optionally substituted and whose hydrocarbon chain can be interrupted by one or more heteroatoms chosen from N and O and / or one or more carbonyl functions. By "optionally substituted" it is meant that R'1 and / or R'2 may carry one or more substituents chosen, for example, from groups comprising one or more heteroatoms chosen from O and / or N, such as amino or amine. , alkoxy, hydroxyl. Examples of the R'1 groups are those derived from preferably higher fatty acids selected from the group consisting of acetic, propionic, butyric, caproic, caprylic, pelargonic, capric, undecanoic, lauric, myristic, palmitic, stearic and isostearic acids. , arachidic, behenic, oleic, linolenic, linoleic, oleostearic, arachidonic, erucic, and mixtures thereof. Preferably, R'l is an unsubstituted branched alkyl group of 4 to 14 carbon atoms, preferably 8 to 10 carbon atoms, and R2 is an unsubstituted branched alkyl group of 5 to 15 carbon atoms, preferably 9 to 11 carbon atoms. In particular, mention may be made, preferably, of C8-C48 esters, optionally incorporating in their hydrocarbon chain one or more heteroatoms of N and O and / or one or more carbonyl functions; and more particularly purcellin oil (cetostearyl octanoate), isononyl isononanoate, isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, octyl-2 stearate -dodecyl, octyl-2-dodecyl erucate, isostearyl isostearate, C12-C15 alcohol benzoate, hexyl laurate, diisopropyl adipate; and the heptanoates, octanoates, decanoates or ricinoleates of alcohols or polyalcohols, for example of fatty alcohols such as propylene glycol dioctanoate, as well as isopropyl N-lauroyl sarcosinate (in particular Eldew-205SL from Ajinomoto); hydroxylated esters such as isostearyl lactate, diisostearyl malate; and pentaerythritol esters; branched C8-C16 esters, especially isohexyl neopentanoate.

2 / hydrocarbon vegetable oils with a high triglyceride content consisting of esters of fatty acids and of glycerol, the fatty acids of which may have various chain lengths of C4 to C24, the latter may be linear or branched, saturated or unsaturated; these oils include wheat germ, corn, sunflower, shea, castor oil, sweet almond, macadamia, apricot, soya, rapeseed, cotton, alfalfa, poppy, of pumpkin, sesame, squash, avocado, hazelnut, grape seed or black currant, evening primrose, millet, barley, quinoa, olive, rye, safflower, bancoulier passionflower, muscat rose, jojoba, palm, calophyllum; or the triglycerides of caprylic / capric acids such as those sold by the company Stearinerie Dubois or those sold under the names "Miglyol 810®", "812®" and "818®" by the company Dynamit Nobel.

3 / alcohols, and especially C6-C32 monoalcohols, in particular C12-C26, such as oleic alcohol, linoleic alcohol, linolenic alcohol, isostearyl alcohol, 2-hexyldecanol, 2-butyloctanol 2-undecylpentadecanol and octyldodecotot;

4 / linear or branched hydrocarbon oils, volatile or not, of synthetic or mineral origin, which may be chosen from hydrocarbon-based oils having from 5 to 100 carbon atoms, and in particular petroleum jelly, polydecenes, hydrogenated polyisobutenes such as Parleam, squalane, perhydrosqualene and their mixtures. It is more particularly possible to mention linear, branched and / or cyclic C5-C48 alkanes, and preferably branched C8-C16 alkanes such as C8-C16 isoalkanes of petroleum origin (also called isoparaffins); including decane, heptane, dodecane, cyclohexane; as well as isododecane, isodecane, isohexadecane.

5 / silicone oils, volatile or non-volatile; Volatile silicone oils that may be mentioned include volatile linear or cyclic silicone oils, in particular those having a viscosity of less than 8 centistokes, and especially having from 2 to 10 silicon atoms, these silicones possibly comprising alkyl or alkoxy groups having 1 to 22 carbon atoms; and in particular octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane, methylhexyldimethylsiloxane and mixtures thereof.

The non-volatile silicone oils that may be used according to the invention may be polydimethylsiloxanes (PDMSs), polydimethylsiloxanes comprising alkyl or alkoxy groups, during and / or at the end of the silicone chain, groups each having from 2 to 24 carbon atoms, and phenyl silicones such as phenyltrimethicones, phenyldimethicones, phenyltrimethylsiloxydiphenylsiloxanes, diphenyldimethicones, diphenylmethyldiphenyltrisiloxanes, 2-phenylethyl trimethylsiloxysilicates.

The liquid fatty phase may further comprise additional oils and / or solvents, which may be chosen from, alone or as a mixture: fluorinated oils such as perfluoropolyethers, perfluoroalkanes such as perfluorodecalin, perfluorodamantanes, monoesters, diesters and triesters of perfluoroalkylphosphates and fluorinated ester oils; - oils of animal origin; - C6 to C40 ethers, especially C10-C40; propylene glycol ethers which are liquid at room temperature, such as propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate or dipropylene glycol mono-butyl ether; - C8-C32 fatty acids, such as oleic acid, linoleic acid, linolenic acid and mixtures thereof. - Bifunctional oils, comprising two functions selected from ester and / or amide and comprising from 6 to 30 carbon atoms, in particular 8 to 28 carbon atoms, more preferably 10 to 24 carbons, and 4 heteroatoms selected from O and N; preferably the amide and ester functions being in the chain; ketones which are liquid at ambient temperature (25 ° C.), such as methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, isophorone, cyclohexanone, acetone, aldehydes which are liquid at room temperature, such as benzaldehyde or acetaldehyde; The liquid fatty phase may represent 1 to 90% by weight of the composition, in particular from 5 to 75% by weight, in particular from 10 to 60% by weight, or even 25 to 55% by weight, of the total weight of the composition. .

The composition according to the invention may advantageously comprise a thickening agent which may in particular be chosen from: - silicas, in particular hydrophobic silicas, such as those described in document EP-A-898960, and for example sold under the references "AEROSIL R812®" "by Degussa," CAB-O-SIL TS-530® "," CAB-O-SIL TS-610® "," CAB-O-SIL TS-720® "by Cabot," AEROSIL R972® "AEROSIL R974®" by Degussa; clays, such as montmorillonite, modified clays, such as bentones, for example, hectorite stearalkonium, stearalkonium bentonite, and alkylether of polysaccharides (in particular of which the alkyl group contains from 1 to 24 carbon atoms, preferably from 1 to 10, more preferably 1 to 6, and more especially 1 to 3) such as those described in EP-A-898958. The amount of thickening agent in the composition according to the invention may range from 0.05 to 40% by weight, relative to the total weight of the composition, preferably from 0.5 to 20% and better still from 1 to 15%. in weight.

The composition according to the invention may also comprise at least one wax of vegetable, animal, mineral, synthetic or even silicone origin.

In particular, hydrocarbon waxes such as beeswax can be mentioned alone or as a mixture; Carnauba wax, Candellila wax, Ouricoury wax, Japan wax, cork fiber wax or sugar cane wax; paraffin waxes of lignite; microcrystalline waxes; lanolin wax; the wax of Montan; ozokerites; polyethylene waxes; waxes obtained by Fischer-Tropsch synthesis; hydrogenated oils, fatty esters and concrete glycerides at 25 ° C. It is also possible to use silicone waxes, among which mention may be made of alkyls, alkoxys and / or polymethylsiloxane esters. The amount of wax in the composition according to the invention may range from 0.1 to 70% by weight, relative to the total weight of the composition, preferably from 1 to 40% by weight, and better still from 5 to 30% by weight. in weight.

The composition according to the invention may also comprise one or more dyestuffs chosen from pulverulent compounds such as pigments, fillers, pearlescent agents and flakes, and / or liposoluble or water-soluble dyes. The dyestuffs, in particular pulverulent, may be present in the composition in a content of from 0.01 to 50% by weight, relative to the weight of the composition, preferably from 0.1 to 40% by weight, or even from 1 to 30% by weight. By pigments, it is necessary to include particles of any shape, white or colored, mineral or organic, insoluble in the physiological medium, intended to color the composition. By nacres, it is necessary to understand particles of any iridescent form, in particular produced by certain molluscs in their shell or else synthesized. The pigments may be white or colored, mineral and / or organic, interferential or not. Among the inorganic pigments, mention may be made of titanium dioxide, optionally surface-treated, zirconium or cerium oxides, as well as iron or chromium oxides, manganese violet, ultramarine blue, hydrate of chrome and ferric blue. Among the organic pigments, mention may be made of carbon black, D & C type pigments, and carmine lacquers of cochineal, barium, strontium, calcium, aluminum. The pearlescent pigments can be chosen from white pearlescent pigments such as mica coated with titanium, or bismuth oxychloride, colored pearlescent pigments such as titanium mica with iron oxides, titanium mica with particular properties.

ferric blue or chromium oxide, titanium mica with an organic pigment of the aforementioned type as well as pearlescent pigments based on bismuth oxychloride. The fillers can be mineral or organic, lamellar or spherical. Mention may be made of talc, mica, silica, kaolin, powders of nylon and polyethylene, poly-R-alanine and polyethylene, Teflon, lauroyl-lysine, starch, boron nitride, tetrafluoroethylene polymer powders, hollow microspheres such as Expancel (Nobel Industrie), polytrap (Dow Corning), precipitated calcium carbonate, magnesium carbonate and hydro-carbonate, hydroxyapatite, microspheres hollow silicates (SILICA BEADS from MAPRECOS), glass or ceramic microcapsules, metal soaps derived from organic carboxylic acids containing from 8 to 22 carbon atoms, preferably from 12 to 18 carbon atoms, for example stearate zinc, magnesium or lithium, zinc laurate, magnesium myristate.

Fat-soluble dyes are, for example, Sudan Red, DC Red 17, DC Green 6, I3-carotene, soybean oil, Sudan Brown, DC Yellow 11, DC Violet 2, Orange DC 5, yellow quinoline. They may represent 0.01 to 20% of the weight of the composition and better still 0.1 to 6%. The water-soluble dyes are, for example, beet juice, methylene blue and may represent 0.01 to 6% of the total weight of the composition.

The composition may further include other ingredients commonly used in cosmetic compositions. Such ingredients may be chosen from antioxidants, perfumes, essential oils, preservatives, cosmetic active agents, moisturizers, vitamins, ceramides, sunscreens, surfactants, gelling agents, spreading agents, wetting agents, dispersing agents, antifoams, neutralizers, stabilizers, polymers and in particular liposoluble film-forming polymers, and mixtures thereof. Of course, those skilled in the art will take care to choose this or these optional additional compounds, and / or their quantity, in such a way that the advantageous properties of the composition for use according to the invention are not, or not substantially, altered by the addition envisaged.

The compositions according to the invention may be in any acceptable and customary form for a cosmetic composition. They can therefore be in the form of a suspension, a dispersion including oil in water with vesicles; an organic or oily solution optionally thickened or even gelled; an oil-in-water, water-in-oil, or multiple emulsion; a gel or a mousse; an oily or emulsified gel; a dispersion of vesicles, in particular lipids; a biphase or multiphase lotion; a spray; a lotion, a cream, an ointment, a soft paste, an ointment, a solid cast or molded and especially stick or cup, or compacted solid. 2954908 101

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. The cosmetic compositions according to the invention can be used for the care and / or the makeup of keratin materials such as skin, eyelashes, eyebrows, hair, nails, lips. They may therefore be in the form of a care product and / or skin care of the body or face, lips, eyelashes, eyebrows, hair or nails; a suntan or self-tanning product; a hair product such as a product for shaping hair, cleaning, coloring, protective care, repair, styling.

The keratin materials include the skin of the body or face, lips, nails, hair, eyebrows and / or eyelashes.

As a first particular embodiment of the invention, the process according to the invention may consist of: depositing on the hair, initially, an aqueous polymer solution carrying at least two ureidopyrimidone functions, and then depositing in a second, an alcoholic solution of dye covalently bound to a ureidopyrimidone moiety; This process makes it possible to color the hair in a sustainable way. Polybutylene GI3000 (64%) - ureidopyrimidone-MDEA (9%), 100% neutralized with HCl and 2 - ({4- [bis (2-hydroxyethyl) amino] - 2-nitrophenyl) amino) ethyl [6 - ({[(6-isopropyl-4-oxo-1,4-dihydropyrimidin-2-yl) amino] carbonyl} amino) hexyl] carbamate. This coloration is resistant to water. In another particular embodiment, the ureidopyrimidone dye asset can be displaced and replaced by an ureidopyrimidone non-dyestuff active in aqueous solution by thermal stimulation (60 ° C), resulting in color disappearance. In particular, it is possible to use a 10% aqueous solution of N- [3- (dimethylamino) propyl] -N '- (6-methyl-4-oxo-1,4-dihydropyrimidin-2-yl) urea which may be applied on the treated hair.

As another particular embodiment, the method according to the invention may consist in depositing on the hair a hydroalcoholic solution containing both a polymer bearing at least two ureïdopyrimidone functions and a dye covalently bound to a ureidopyrimidone unit used to color a hair. This coloration is resistant to water. 2

The invention also relates to a kit comprising, on the one hand, a cosmetic composition comprising at least one polymer bearing at least one for-mule unit (Ia), and secondly a second cosmetic composition comprising at least one cosmetic active agent carrying at least one unit of formula (la) as defined above.

The invention is further illustrated in the following examples. Description of the products employed Example A: dye A The functionalized dye ureidopyrimidone used is a mixture consisting essentially of 2 - ({4- [bis (2-hydroxyethyl) amino] -2-nitrophenyl} amino) ethyl [6 - ({[[( 6-isopropyl-4-oxo-1,4-dihydropyrimidin-2-yl) amino] carbonyl} amino) hexyl] carbamate. Preparation of A: 4 g of 2,2 '- [4- (2-hydroxyethylamino) -3-nitrophenylimino] diethanol was dissolved in 75 ml of anhydrous tetrahydrofuran. 4.51 g of N- (5-isocyanatopentyl) -N '- (6-isopropyl-4-oxo-1,4-dihydropyrimidin-2-yl) urea were added under an argon atmosphere with stirring. small amounts, then 3 drops of dibutyltin dilaurate (DBDTL). The reaction medium was then stirred at room temperature for 3 hours; the disappearance of the isocyanate function is followed by infrared. After complete disappearance of the isocyanate function, the reaction mixture was filtered through celite and then concentrated by half. The reaction medium was then poured onto 800 ml of ethyl ether with vigorous stirring and the resulting precipitate filtered on a sintered glass. It was then dried under vacuum to obtain 7 g of a violet powder with a yield of about 80%. HPLC analysis coupled to a mass spectrometer shows the majority formation of the desired product [M + H] + = 607 as well as a residue of starting material and the double reaction product of mass M = 928. 0 HO O EXAMPLE A ': Polyurethane Copolymer A 138.95 g of poly (ethylene-butylene) diOH (NISSO GI 3000) were mixed beforehand with H 2 O 3 NO 3

dried in vacuo at 60 ° C for 24 hours, with 17.27 g of N-methyldiethanolamine (MDEA), 25 microliter of dibutyltin dilaurate, dissolved in 200 g of methyl ethyl ketone (MEK); The mixture is heated at 90 ° C. for 2 hours and a solution of 40.97 g of isophorone diisocyanate (IPDI) dissolved in 100 ml of MEK is then added dropwise. The reaction medium was then stirred for 8 hours; the disappearance of the isocyanate function is followed by infrared. 50 ml of ethanol were then added and then evaporated under reduced pressure. 500 ml of ethanol and then 500 ml of water were then added. 12 ml of a 37% hydrochloric acid solution was then added and then stirred for 2 hours. After evaporation under reduced pressure of ethanol, an aqueous dispersion of polymer with 13% solids content was obtained. The polymer was then diluted with water to obtain a 2% solution of active ingredient which will be called polymer A thereafter.

EXAMPLE B Polyurethane Copolymer B A hydrocarbon random copolymer functionalized with ureidopyrimidone units carried in water and neutralized to 100% with 23.8% of active material is prepared by reaction between 101.7 g of poly (ethylene-butylene) diOH (NISSO G3000 Mn = 3100) previously dried under vacuum for 24 hours at 60 ° C, 25.5 g of isophorone diisocyanate and 13.65 g of N-methyldiethanolamine, dissolved in 180 ml of N-methyl tetrahydrofuran to which 25 microliters of dibutyltin dilaurate were added; and heating at 80 ° C for 2 hours under argon. 14.03 g of functionalized ureidopyrimidone isophoronediisocyanate dissolved in 100 ml of N-methyl tetrahydrofuran were then added dropwise.

After the addition was complete, the reaction medium was maintained at 80 ° C for 24 hours. The evolution of the infrared reaction was followed by the disappearance of the isocyanate peak at 2250 cm -1. It was then allowed to return to room temperature and then 500 ml of ethanol was added. 9.57 ml of a 37% hydrochloric acid solution was then added and allowed to stir for 1 hour. It was then concentrated under vacuum until a white paste was obtained which was solubilized in a mixture of 500 ml of tetrahydrofuran and 500 ml of water. After evaporation under reduced pressure of tetrahydrofuran, an aqueous dispersion of the polymer was obtained at 23.8% solids. The polymer was then diluted with water to obtain a 2% solution of active ingredient which will be called polymer B thereafter.

Example C: Hydrogenated α, α-hydroxy polydiene functionalized with ureidopyrimidone units at both ends 100 g of hydrogenated 1,2-polybutadiene polymer (also called poly (ethylene-butylene)) dihydroxylated (GI3000 from Nisso; Mn = 3100) at 80 ° C under reduced pressure overnight. This polymer is dissolved in 400 ml of anhydrous toluene. 25 μl of catalyst (dibutyltin dilaurate) are added and the mixture is heated at 80 ° C. with stirring until a homogeneous solution is obtained. 15 g of isocyanate functionalized molecule of following structure are added: NH 4 NN NCO O

1 H H in solution in 300 ml of anhydrous toluene under a controlled atmosphere at 40 ° C. The reaction mixture is heated to 100 ° C and stirred at this temperature for 4 hours. The reaction is monitored by infrared spectroscopy, followed by the total disappearance of the characteristic isocyanate peak at 2260 cm -1. At the end of the reaction, 100 ml of ethanol is added to remove any residual isocyanate, and the mixture is filtered after addition of isododecane to make the solution less viscous. The polymer solution is then directly stripped with isododecane. A solution of the final polymer in isododecane at 21% solids is obtained; the polymer is characterized by GPC (Mn = 6400 and polydispersity index = 1.85) and 1H NMR (spectrum according to what is expected). The polymer was then diluted with isododecane to obtain a 7% solution of active ingredient which will be called polymer C thereafter. Example D: N- [3- (dimethylamino) propyll-N '- (6-methyl-4-oxo-1,4-dihydropyrimidin-2-yl) urea Preparation from 6-methylisocytosine and carbonyl diimidazole: NNH, To a suspension of 5 g of 6-methylisocytosine (40 mmol) in 100 ml of ethyl acetate, 8.42 g of carbonyl diimidazole are added to the suspension of 5 g of 6-methylisocytosine (40 mmol) in 100 ml of ethyl acetate. (52 mmol). The solution is stirred for 12 hours under reflux and then 8 hours at room temperature. 5.03 ml of dimethylaminopropylamine (40 mmol) is added. The solution is stirred for 6 hours under reflux. The final product is obtained by Buchner filtration. The final product is dried under reduced pressure and 9.6 g (38 mmol) of the pure desired product are obtained in the form of a white powder with a yield of 95%. 1H NMR (DMSO): δ 1.77 ppm (t, 2H), 2.19 ppm (s, 3H), 2.71 ppm (s, 6H), 3.28 ppm (t, 2H), 5.84 ppm (s, 1H).

Example E: Polyurethane Capsules (E Capsules) In a reactor, 12 g of diphenylmethane 4,4'-diisocyanate and 2.8 g of isododecane were mixed and stirred with ultraturax at 13500 rpm. We add at once, 5

a solution previously cooled in an ice bath (10 ° C) comprising 320 g of water at 5% of PVA (polyvinyl alcohol) hydrolysed at 98%, in the presence of 3.4 g of surfactant Poloxamer 188; it is stirred with ultraturax for 1 hour. A solution comprising 4 g of diethylene glycol, 1.4 g of pentaerythritol and 80 g of 5% PVA water is then added. The mixture is mechanically stirred and heated to 65 ° C. The polymerization is monitored by light microscopy, and the heating and stirring is stopped after 23 hours. The reaction mixture is centrifuged for 30 minutes; after removing the supernatant, the solid is washed with water 3 times, filtered on filter paper and left for 3 hours in a neutralizing solution of isocyanates. The powder is washed again with water, filtered and dried. 8.87 g of capsules with a hydroxyl number measured at 28 are obtained.

2.84 g of the capsules prepared above are suspended in 6 ml of toluene under argon in the presence of 3 microliters of dibutyltin dilaurate. The mixture is brought to 100 ° C., and 0.44 g of dendron ureidopyrimidone of structure represented below (SupraPolix), previously dissolved in 15 ml of toluene, is added. The solution is refluxed for 22 hours: the reaction medium becomes viscous. The monitoring of the reactivity is done by infrared spectroscopy, with disappearance of the isocyanates characteristic band at 2260 cm-1. The capsules are filtered on filter paper, washed three times with 75 ml of CH 2 Cl 2, dispersed in a decontaminant solution, washed with ethanol, refiltered on filter paper and dried. Dendron: O HN NCO NNO H H

1.75 g of functionalized capsules are obtained (yield of 61%).

Hair The hair used is natural brown hair having undergone a fading treatment leading to an alkaline solubility of 15; the weight of a lock of hair used per test is 0.5 gram.

Example 1: Verification of non-staining of strands of hair treated with dye A alone in a vehicle in which the dye is soluble.

Preparation of the dye solution: 38 mg of 2 - ({4- [bis (2-hydroxyethyl) amino] -2-nitrophenyl} amino) ethyl 40 [6 - ({[(6-isopropyl) -4- oxo-1,4-dihydropyrimidin-2-yl) amino] carbonyl} amino) hexyl] carbamate (dye A) in 0.5 ml of benzyl alcohol and 0.5 ml of ethyl alcohol 6

then stirred for 1 minute with ultrasound; 4 ml of HPLC grade water was added to obtain a homogeneous solution.

Application on hair: Before application of the dye, the hair was moistened with water, then shampooed with 0.2 g of shampoo containing 15% of Sodium Lauryl Sulfate in water and then rinsed with water. The previously prepared solution (0.0125 mol / I dye A) was then applied to the entire wick placed in a suitable trough for 30 minutes at 60 ° C. After wringing and rinsing with water, no coloration was observed on the whole of the wick thus treated.

EXAMPLE 2 Verification of Non-Staining of Strands of Hair Previously Treated with Non-Functional Polymer Ureidopyrimidone Polymer A and then Application of Colorant A in a Vehicle in Which the Colorant Is Soluble

Application on hair: Before application of the dye, the hair was moistened with water, then shampooed with 0.2 g of shampoo containing 15% of Sodium Lauryl Sulfate in water and then rinsed with water. 5 ml of solution of polymer A were then applied to the wick, previously placed in a gutter, for 25 minutes at a temperature of 60 ° C. The lock was drained and then 5 ml of the previously prepared dye solution A (in Example 1) were applied.

After wringing and rinsing with water, no coloration was observed on the whole of the wick thus treated.

Example 3: Staining of locks of hair previously treated with a polymer functionalized with ureiodpyrimidone units (polymer B) and then application of Colorant A in a vehicle in which the dye is soluble.

Hair application: Before application of the dye, the hair was moistened with water, then shampooed with 0.2 g shampoo containing 15% Sodium Lauryl Sulfate in water and then rinsed with water. 5 ml of solution of polymer B were then applied to the wick, previously placed in a gutter, for 25 minutes at a temperature of 60 ° C. The wick was wrung out and then 5 ml of the previously prepared dye solution A (Example 1) was applied. After wringing and rinsing with water, an intense violet color was observed on the whole of the wick thus treated.

Resistance of coloring with water heated to 60 ° C: 2954908

On the hair strand treated higher and placed in a gutter, 10 ml of HPLC grade water was added. The wick was thus maintained for 30 minutes at 60 ° C. After wringing and rinsing with water, an intense violet color was observed on the whole of the wick thus treated. Example 4: Displacement of dye A by a colorless active D

Preparation of the solution of the functionalized active agent: 0.5 g of N- [3- (dimethylamino) propyl] -N '- (6-methyl-4-oxo-1,4-dihydropyrimidin-2-one) was added. yl) urea in 5 ml of HPLC grade water, then stirred for 5 minutes to obtain a homogeneous and translucent solution.

Application on hair: On the hair strand treated in Example 3 placed in a gutter, 5 ml of solution of the functionalized active agent above was added. The wick was thus maintained for 30 minutes at 60 ° C. After wringing and rinsing with water, there was a virtually total disappearance of the violet color throughout the wick. Example 5: Staining of locks of hair treated simultaneously with a polymer functionalized with ureiodpyrimidone units and Dye A in a vehicle in which the dye is soluble. Preparation of the solution of the dye: Identical to that of Example 1 except that the 4 ml of water was replaced by 4 ml of the polymer B

Hair application: Before application of the dye, the hair was moistened with water and then shampooed with 0.2 g shampoo containing 15% Sodium Lauryl Sulfate in water and then rinsed with water. 5 ml of previously prepared solution (containing 4 ml of polymer B, 38 mg of dye A, 0.5 ml of ethanol and 0.5 ml of benzyl alcohol were then applied to the wick, previously placed in a gutter. ) for 30 minutes at a temperature of 60 ° C. After wringing and rinsing with water, an intense violet color was observed on the whole of the wick thus treated.

Example 6: Staining of locks of hair treated simultaneously with a polymer functionalized with ureidopyrimidone units (polymer C) and dye A in a vehicle in which the dye is soluble. 25 8

Preparation of the dye solution: Identical to that of Example 1 except that the 4 ml of water were replaced with 4 ml of the polymer C Application on hair: Before application of the dye, the hair was moistened with the water, then shampooed with 0.g of shampoo containing 15% of Sodium Lauryl Sulfate in water and then rinsed with water.

5 ml of a solution containing polymer C and dye A (38 mg of dye A, 0.5 ml of ethanol and 0.5 ml of alcohol were then applied to the wick, previously placed in a gutter). benzyl) previously prepared for 30 minutes at a temperature of 60 ° C. After wringing and rinsing with water, an intense violet color was observed on the whole of the wick thus treated.

EXAMPLE 7 Films are formed using the supramolecular polymer (polymer C) on which functionalized ureidopyrimidone capsules (E capsules) are deposited. It is found that the deposit formed of the mixture "polymer + functionalized capsules" is insensitive to olive oil unlike the deposit obtained from the film-forming polymer alone or the deposit obtained from the mixture "polymer + unfunctionalized capsules".

Claims (3)

REVENDICATIONS1. A process for the cosmetic treatment of keratin materials comprising the application on said materials: at first, of a cosmetic composition comprising at least one polymer bearing at least one unit of formula (Ia) and - in a second step of a cosmetic composition comprising at least one cosmetic active agent carrying at least one unit of formula (Ia): CH3 10 ONNHNH 2. A kit comprising, on the one hand, a cosmetic composition comprising at least one polymer bearing at least one unit of formula (Ia), and secondly a second cosmetic composition comprising at least one cosmetic active agent carrying at least one pattern of formula (la): CH3 ONNHNH 3. A process for the cosmetic treatment of keratin materials comprising the application to said materials of a cosmetic composition comprising at least one polymer bearing at least one unit of formula (Ia) and at least one cosmetic active having at least one unit of formula (la): CH3