FR3030266A1 - COMPOSITION COMPRISING POLYMER PARTICLES, HYDROCARBON OIL, BLOCKED HYDROCARBON COPOLYMER, AND SILICONE COMPOUND, AND PROCESS FOR CARRYING OUT THE SAME - Google Patents

Abstract

The present invention relates to a composition comprising particles of at least one polymer stabilized at the surface with a stabilizing agent, the polymer of the particles being a polymer of (meth) acrylate C1-C4; the stabilizing agent being a polymer of isobornyl (meth) acrylate selected from isobornyl (meth) acrylate homopolymer and random copolymers of isobornyl (meth) acrylate and alkyl (meth) acrylate C1-C4 present in a weight ratio of isobornyl (meth) acrylate / C1-C4 alkyl (meth) acrylate greater than 4, at least one hydrocarbon oil, at least one amorphous hydrocarbon block copolymer obtained by polymerization of at least less an unsaturated hydrocarbon-type monomer comprising 2 to 5 carbon atoms and having one or two ethylenic unsaturations and at least one silicone compound chosen from elastomers conveyed in a second oil and silicone polyamides, or mixtures thereof. It also relates to a process for the makeup and / or care of keratin materials in which said composition is applied.

Description

The present invention relates to compositions intended for the makeup and / or the care of human keratinous materials, such as the lips, the composition of the present invention, and the use of the present invention. keratinous fibers, in particular eyelashes, comprising polymer particles, at least one hydrocarbon-based oil, at least one block-type hydrocarbon copolymer and at least one silicone compound chosen from silicone elastomers conveyed in a second oil or silicone polyamides. These compositions are well known and if they have specific properties depending on their use, there has been a very clear trend over the last few years in the development of compositions whose performance is improved. This avoids, on the one hand, having to reapply the composition too often and, on the other hand, it reduces the transfers on supports with which the masked areas would come into contact (clothes, cups, etc.) or else their elimination by the action of external agents (sebum, food, rain, etc.). This is why the compositions for which this property is sought generally comprise at least one film-forming agent. The latter is often a polymer, being in a solubilized or dispersed form in one of the phases of the composition. It allows the latter, once applied, to form after drying, a more cohesive and tenacious film on the support. There are makeup products whose performance is considerably improved but the deposit they form, once dried, is very uncomfortable. In particular, it causes in fact feelings of tugging and dryness of the lips. It is therefore not uncommon to apply a second composition on the first which brings the behavior of the color, either spontaneously (with the application of a lip balm) is recommended with the first composition (with the application of a so-called "top coat" composition, in this case, for the two compositions, we speak of "double gesture" compositions). This second composition, often transparent, brings brilliance and especially comfort. These products represent a very clear improvement in the behavior of the composition and color on the lips, but their implementation is complex because of the need to implement two steps to obtain the result. Another problem encountered with the use of such film-forming agents lies in the fact that they are the cause of discomfort in use. Firstly, it is not uncommon for their presence in compositions to make them more sticky and often more difficult to apply. We are therefore looking for compositions which comprise at least one film-forming agent, which make it possible, after application, to obtain a film having good cosmetic properties, such as, in particular, good strength, and which is non-tacky. The subject of the invention is thus a composition comprising particles of at least one polymer stabilized at the surface by a stabilizing agent, the polymer of the particles being a C 1 -C 4 alkyl (meth) acrylate polymer; the stabilizing agent being a polymer of isobornyl (meth) acrylate selected from isobornyl (meth) acrylate homopolymer and random copolymers of isobornyl (meth) acrylate and alkyl (meth) acrylate Cl-04 present in a weight ratio of isobornyl (meth) acrylate / C1-C4 alkyl (meth) acrylate greater than 4, at least one hydrocarbon oil and at least one amorphous hydrocarbon block copolymer obtained by polymerization of at least one unsaturated hydrocarbon-type monomer comprising 2 to 5 carbon atoms and having one or two ethylenic unsaturations, and at least one silicone compound selected from silicone elastomers carried in a second oil or silicone polyamides, or mixtures thereof. The subject of the invention is also a process for the makeup and / or care of keratinous substances, in particular the lips and the keratinous fibers, such as the eyelashes, the eyebrows, consisting in applying the said composition.

It has indeed been found that the composition according to the invention leads to easily applicable compositions, with a very good sliding, and leaving a feeling of softness to the application. The deposits obtained are also non-sticky and remain comfortable while having a good performance.

But other advantages will appear more clearly on reading the description and examples that follow. Note that in the following description, unless otherwise indicated, the terminals indicated for a domain are included in this area.

The expressions "at least one" and "several" are used interchangeably. Hydrocarbon Oil The composition according to the invention comprises a hydrocarbon oil. 2 This oil can be volatile (saturated vapor pressure greater than or equal to 0.13 Pa measured at 25 ° C) or non-volatile (saturated vapor pressure less than 0.13 Pa, measured at 25 ° C). Preferably, the hydrocarbon oil is volatile.

The hydrocarbon oil is an oil (non-aqueous compound) that is liquid at room temperature (25 ° C). Hydrocarbon oil is understood to mean an oil formed essentially or even consisting of carbon and hydrogen atoms, and possibly oxygen, nitrogen, and not containing silicon or fluorine atoms. It may contain alcohol, ester, ether, carboxylic acid, amine and / or amide groups. The hydrocarbon-based oil may be chosen from: hydrocarbon-based oils containing from 8 to 16 carbon atoms, and in particular: C8-C16 branched alkanes such as C8-C16 isoalkanes of petroleum origin (also known as isoparaffins), such as isododecane (also called 2,2,4,4,6-pentamethylheptane), isodecane, isohexadecane and for example the oils sold under the trade names Isopars' or permetyls, - linear alkanes, for example such as n-dodecane (C12) and ntetradecane (C14) sold by Sasol respectively under the references PARAFOL 12-97 and PARAFOL 14-97, as well as their mixtures, the undecane-tridecane mixture, the n-undecane mixtures ( C11) and n-tridecane (C13) obtained in Examples 1 and 2 of Application WO2008 / 155059 from Cognis, and mixtures thereof. short chain esters (having from 3 to 8 carbon atoms in total) such as ethyl acetate, methyl acetate, propyl acetate, n-butyl acetate - hydrocarbon oils of vegetable origin, such as triglycerides consisting of esters of fatty acids and glycerol, the fatty acids of which may have chain lengths varying from C4 to C24, the latter being linear or branched, saturated or unsaturated; these oils are in particular triglycerides of heptanoic acid or octanoic acid, or else the oils of wheat germ, sunflower, grape seed, sesame, maize, apricot, castor, shea, of avocado, olive, soya, sweet almond, palm, rapeseed, cotton, hazelnut, macadamia, jojoba, alfalfa, poppy, pumpkin, sesame, squash, rapeseed, cassis, evening primrose, millet, barley, quinoa, rye, safflower, bancoulier, passionflower, muscat rose; shea butter; or the triglycerides of caprylic / capric acids, such as those sold by the company Stéarineries Dubois or those sold under the names Miglyol 810®, 812® and 818® by the company Dynamit Nobel, 3-synthetic ethers having from 10 to 40 atoms of carbon ; linear or branched hydrocarbons of mineral or synthetic origin, such as petroleum jelly, polydecenes, hydrogenated polyisobutene such as Parleam O, squalane, paraffin oils, and mixtures thereof; synthetic esters, such as oils; of formula R1000R2in which R1 represents the residue of a linear or branched fatty acid having 1 to 40 carbon atoms and R2 represents a particularly branched hydrocarbon chain containing from 1 to 40 carbon atoms, provided that R1 + R2 is 10, as per For example, purcellin oil (cetostearyl octanoate), isopropyl myristate, isopropyl palmitate, 012-015 alcohol benzoates, hexyl laurate, diisopropyl adipate, isononanoate, and the like. isononyl, 2-ethylhexyl palmitate, isostearyl isostearate, 2-hexyl-decyl laurate, 2-octyl-decyl palmitate, 2-octyl-dodecyl myristate, heptanoates, octanoates , decanoates or ricinol sulfates of alcohols or polyalcohols such as propylene glycol dioctanoate; hydroxyl esters such as isostearyl lactate, di-isostearyl malate, 2-octyl-dodecyl lactate; polyol esters and pentaerythritol esters, - branched-chain and / or unsaturated carbon-chain liquid fatty alcohols having from 12 to 26 carbon atoms, such as octyl dodecanol, isostearyl alcohol, oleic alcohol 2-hexyldecanol, 2-butyloctanol, and 2-undecylpentadecanol, their mixture. More particularly, the hydrocarbon oil content (s) varies from 20 to 75% by weight, more particularly from 30 to 75% by weight, preferably from 40 to 60% by weight, relative to the weight of the composition. This hydrocarbon oil may be provided in whole or in part with the surface-stabilized polymer particles, in particular when they are introduced into the composition, in the form of a previously prepared dispersion, of surface-stabilized polymer particles. In this case, the hydrocarbon oil present in the composition represents at least the nonaqueous medium of the surface stabilized polymer particle dispersion. It can also be provided as the second oil carrying the silicone elastomer which will be described later. Advantageously, the hydrocarbon oil is apolar (thus formed only of carbon and hydrogen atoms). The hydrocarbon oil is preferably chosen from hydrocarbon oils having from 8 to 16 carbon atoms, more preferably from 12 to 16 carbon atoms, in particular the apolar oils, described above. Preferentially, the hydrocarbon oil is isododecane. More particularly, the isododecane content varies from 20 to 75% by weight, more particularly from 30 to 75% by weight, preferably from 40 to 60% by weight, relative to the weight of the composition.

Preferably the hydrocarbon oil (s), in particular isododecane, is (are) the only oil (s) of the composition, or is (are) present (s). ) at a majority weight content relative to the other oil (s) possibly present in the composition. According to a particular embodiment of the invention, if the composition contains one or more non-volatile oils, their content advantageously does not exceed 20% by weight, preferably does not exceed 15% by weight relative to the weight of the composition. more preferably does not exceed 10% by weight relative to the weight of the composition. According to a more particular embodiment of the invention, the content of non-volatile oil (s) hydrocarbon (s) does not exceed 5%, more particularly does not exceed 2% by weight, relative to the weight of the composition or the composition is free of non-volatile oil (s). Additional silicone oils The composition according to the invention may further comprise at least one additional silicone, volatile or non-volatile oil, and preferably volatile oil. By "silicone oil" is meant an oil containing at least one silicon atom, and in particular containing Si-O groups.

Suitable volatile volatile silicone additional oils that may be mentioned include, for example, volatile linear or cyclic silicone oils, especially those having a viscosity of 8 centistokes (8 × 10 -6 m 2 / s), especially having from 2 to 7 silicon atoms, these silicones optionally comprising alkyl or alkoxy groups having from 1 to 10 carbon atoms.

As volatile silicone oil that can be used, mention may be made in particular of octamethylcyclotetrasiloxane, cyclopentadimethylsiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethylisiloxane, octamethyltrisiloxane and decamethyltetrasiloxane. dodecamethyl pentasiloxane and mixtures thereof. Non-volatile silicone oils that may be mentioned are non-volatile, non-phenyl silicone oils, for instance polydimethylsiloxanes (PDMSs), PDMSs comprising aliphatic groups, in particular alkyl, or alkoxy groups, which are pendent and / or at the end of the silicone chain. ; these groups each comprising from 2 to 24 carbon atoms. By way of example, mention may be made of the cetyldimethicone sold under the commercial reference ABIL WAX 9801 by Evonik Goldschmidt. Non-volatile phenyl silicone oils, which may or may not include one or more dimethicone fragments (- (CH 3) 2 -SiO--), may also be mentioned. for example phenyl trimethicones, phenyl dimethicones, phenyl trimethylsiloxy diphenylsiloxanes, diphenyl dimethicones, trimethylpentaphenyltrisiloxane, and mixtures thereof.

If the composition comprises, the content of additional oil (s) silicone (s), preferably volatile (s), is between 1 and 20% by weight, preferably between 1 and 15% by weight, by relative to the weight of the composition. Preferably, the composition comprises not more than 10% by weight, based on the weight of the composition, of additional nonvolatile oil, and preferably is devoid thereof. Polymer particles The composition according to the invention also comprises particles, generally spherical, of at least one surface-stabilized polymer.

Preferably, the particles are introduced into the composition in the form of a dispersion of generally spherical particles of at least one surface-stabilized polymer in an oily medium, advantageously containing at least one hydrocarbon-based oil, as defined previously. . The polymer of the particles is a polymer of (C1-C4) alkyl (meth) acrylate. The monomers of (C1-C4) alkyl (meth) acrylate may be chosen from methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate and (meth) acrylate. isopropyl, n-butyl (meth) acrylate, tert-butyl (meth) acrylate.

Advantageously, a C1-C4 alkyl acrylate monomer is used. Preferably, the polymer of the particles is a polymer of methyl acrylate and / or ethyl acrylate. The polymer of the particles may furthermore comprise an ethylenically unsaturated acid monomer or of their anhydride, chosen in particular from ethylenically unsaturated acidic monomers comprising at least one carboxylic, phosphoric or sulphonic acid function, such as crotonic acid, itaconic acid, fumaric acid, maleic acid, maleic anhydride, styrenesulfonic acid, vinylbenzoic acid, vinylphosphoric acid, acrylic acid, methacrylic acid, acrylamidopropanesulfonic acid, acrylamidoglycolic acid, and their salts. Preferably, the ethylenically unsaturated acidic monomer is selected from (meth) acrylic acid, maleic acid and maleic anhydride.

The salts may be chosen from alkali metal salts, for example sodium and potassium; alkaline earth metal salts, for example calcium, magnesium, strontium, metal salts, for example zinc, aluminum, manganese, copper; ammonium salts of formula NH4; quaternary ammonium salts; organic amine salts, such as, for example, the salts of methylamine, dimethylamine, trimethylamine, triethylamine, ethylamine, 2-hydroxyethylamine, bis (2-hydroxyethyl) amine, tri- (2- hydroxyethyl) amine; lysine salts, arginine.

The polymer of the particles may thus comprise, or consist essentially of, from 80 to 100% by weight of (C 1 -C 4) alkyl (meth) acrylate and from 0 to 20% by weight of ethylenically unsaturated acidic monomer, relative to to the total weight of the polymer. According to a first embodiment of the invention, the polymer consists essentially of a polymer of one or more C 1 -C 4 alkyl (meth) acrylate monomers. According to a second embodiment of the invention, the polymer consists essentially of a copolymer of (meth) acrylate Cl-04 and (meth) acrylic acid or maleic anhydride.

The polymer of the particles may be chosen from: homopolymers of methyl acrylate homopolymers of ethyl acrylate copolymers methyl acrylate / ethyl acrylate copolymers methyl acrylate / ethyl acrylate / acrylic acid copolymers acrylate methyl acrylate / ethyl acrylate / maleic anhydride methyl acrylate / acrylic acid copolymers ethyl acrylate / acrylic acid copolymers methyl acrylate / maleic anhydride copolymers ethyl acrylate / maleic anhydride copolymers.

Advantageously, the polymer of the particles is a non-crosslinked polymer. The polymer of the particles preferably has a number average molecular weight of from 2,000 to 10,000,000, preferably from 150,000 to 500,000. In the case of particle dispersion, the polymer of the particles may be present in the dispersion in one part. content ranging from 21% to 58.5% by weight, relative to the total weight of the dispersion, preferably ranging from 36 to 42% by weight. The stabilizing agent is an isobornyl (meth) acrylate polymer selected from isobornyl (meth) acrylate homopolymer and random copolymers of isobornyl (meth) acrylate and alkyl (meth) acrylate in Cl-04 present in a weight ratio of isobornyl (meth) acrylate / C1-C4 alkyl (meth) acrylate greater than 4, preferably greater than 4.5, and still more preferably greater than or equal to 5. Advantageously, said weight ratio is from 4.5 to 19, preferably from 5 to 19 and more particularly from 5 to 12. Advantageously, the stabilizing agent is chosen from: homopolymers of isobornyl acrylate, random copolymers of isobornyl acrylate / methyl acrylate random copolymers of isobornyl acrylate / methyl acrylate / ethyl acrylate random copolymers of isobornyl methacrylate / methyl acrylate according to the weight ratio described above. The stabilizing polymer preferably has a number average molecular weight of from 10,000 to 400,000, preferably from 20,000 to 200,000. Preferably, the stabilizing agent is soluble in the hydrocarbon oil (s). , in particular soluble in isododecane. The stabilizer is in contact with the surface of the polymer particles and thus makes it possible to stabilize these particles on the surface, in particular for the maintenance of these particles in dispersion in the non-aqueous medium of the dispersion. According to a theory that can not limit the scope of the present invention, the inventors theorize that the surface stabilization of the C 1 -C 4 alkyl (meth) acrylate polymer particles results from an adsorption phenomenon of surface of the stabilizing agent on the C1-C4 alkyl (meth) acrylate polymer particles. Advantageously, the stabilizing + polymer group of the particles, in particular present in the dispersion, comprises from 10 to 50% by weight of polymerized isobornyl (meth) acrylate and from 50 to 90% by weight of alkyl (meth) acrylate. in polymerized C 1 -C 4, based on the total weight of the stabilizer + polymer group of the particles. Preferably, the stabilizer + polymer group of the particles, in particular present in the dispersion, comprises from 15 to 30% by weight of polymerized isobornyl (meth) acrylate and from 70 to 85% by weight of (meth) acrylate 8. C 1 -C 4 alkyl polymerized, based on the total weight of the stabilizer + polymer of the particles. When the polymer particles are made into the composition in the form of a previously prepared dispersion, the oily medium of this polymer dispersion comprises a first hydrocarbon oil. Reference may be made to what has been said above about this oil in terms of its nature. Advantageously, the hydrocarbon oil is apolar and preferably selected from hydrocarbon oils having from 8 to 14 carbon atoms, in particular the apolar oils, described above. Preferentially, the hydrocarbon oil is isododecane. The polymer particles, in particular in the dispersion, preferably have a mean size, especially in number, ranging from 50 to 500 nm, in particular ranging from 75 to 400 nm, and better still from 100 to 250 nm. In general, a dispersion of polymer particles suitable for the invention may be prepared in the following manner, given by way of example. The polymerization can be carried out in dispersion, that is to say by precipitation of the polymer being formed, with protection of the particles formed with a stabilizer. In a first step, the stabilizing polymer is prepared by mixing the monomer (s) constituting the stabilizing polymer, with a radical initiator, in a solvent called synthetic solvent, and by polymerizing these monomers. In a second step, the monomer constituting the polymer is added to the stabilizing polymer formed and the polymerization of these added monomers is carried out in the presence of the radical initiator. When the non-aqueous medium is a non-volatile hydrocarbon oil, the polymerization can be carried out in an apolar organic solvent (synthetic solvent), then the nonvolatile hydrocarbon oil (which must be miscible with the said synthesis solvent) is added and the synthetic solvent. A synthesis solvent is thus chosen such that the monomers of the stabilizing polymer and the radical initiator are soluble therein, and the polymer particles obtained therein are insoluble so that they precipitate during their formation.

In particular, the synthesis solvent can be chosen from alkanes such as heptane or cyclohexane. When the non-aqueous medium is a volatile hydrocarbon oil, the polymerization can be carried out directly in the said oil, which thus also acts as a synthesis solvent. The monomers must also be soluble, as well as the radical initiator, and the polymer of the particles obtained must be insoluble therein. The monomers are preferably present in the synthesis solvent, before polymerization, in a proportion of 5-20% by weight. All of the monomers may be present in the solvent before the start of the reaction, or a portion of the monomers may be added as the polymerization reaction progresses. The radical initiator may be in particular azobisisobutyronitrile or tert-butylperoxy-2-ethylhexanoate.

The polymerization can be carried out at a temperature ranging from 70 to 110 ° C. The polymer particles are surface-stabilized, when formed during the polymerization, by the stabilizing agent. The stabilization can be carried out by any known means, and in particular by direct addition of the stabilizing agent, during the polymerization. The stabilizer is preferably also present in the mixture prior to polymerization of the monomers of the polymer of the particles. However, it is also possible to add it continuously, especially when the monomers of the polymer of the particles are also continuously added.

It is possible to use from 10 to 30% by weight of stabilizer relative to the total weight of monomers used (stabilizer + polymer of the particles), and preferably from 15 to 25% by weight. The dispersion of polymer particles advantageously comprises from 30 to 65% by weight of solids, relative to the total weight of the dispersion, and preferably from 40 to 60% by weight. Moreover, the composition according to the invention advantageously comprises a content of surface-stabilized polymer particles described above, of between 5 and 55% by weight, more particularly between 5 and 50% by weight, preferably 8 to 45% by weight, more preferably 10 to 40% by weight, relative to the weight of the composition (content expressed as active ingredient). Plasticizer According to one embodiment of the invention, the composition comprises at least one plasticizer. In the case where the polymer particles are made in the form of a dispersion, the plasticizer is then advantageously present in said oily dispersion. The plasticizer (s) may be chosen from n-butyl tri citrate, tripropylene glycol monomethyl ether (INCI name: PPG-3 methyl ether), trimethyl pentaphenyl trisiloxane (sold under the name DOW CORNING PH-1555 HRI COSMETIC FLUID). by Dow Corning). These plasticizers make it possible to improve the mechanical strength of the polymer film. The plasticizer may be present in a content ranging from 2 to 50% by weight, relative to the total weight of the polymer of the particles, preferably from 2 to 40% by weight and even more particularly below 20% by weight relative to the weight of the composition.

Hydrocarbon Block Copolymer As indicated above, the composition according to the invention comprises at least one amorphous block (or block) hydrocarbon copolymer obtained by polymerization of at least one unsaturated hydrocarbon-type monomer comprising 2 to 5 carbon atoms and having a or two ethylenic unsaturations. These hydrocarbon block copolymers are preferably soluble or dispersible in the oily phase. They may be in particular diblock, triblock, multiblock, radial, star, or their mixtures. Such hydrocarbon-based block copolymers are for example described in application US 2002/005562 and in US Pat. No. 5,221,534. The copolymer may have at least one block whose glass transition temperature is preferably less than 20 ° C. preferably less than or equal to 0 ° C, preferably less than or equal to -20 ° C, more preferably less than or equal to -40 ° C. The glass transition temperature of said block may be between -150 ° C. and 20 ° C., in particular between -100 ° C. and 0 ° C. By "amorphous polymer" is meant a polymer that does not have a crystalline form.

The unsaturated hydrocarbon-type monomer comprising 2 to 5 carbon atoms and having one or two ethylenic unsaturations may in particular be an ethylenically unsaturated elastomeric monomer. As an example of unsaturated hydrocarbon-type monomer comprising 2 to 5 unsaturated carbon atoms, there may be mentioned ethylene, propylene, butadiene, isoprene, or pentadiene. Advantageously, the block-type hydrocarbon copolymer is an amorphous block copolymer of styrene and of hydrocarbon monomer (s) comprising 2 to 5 carbon atoms and comprising one or two ethylenic unsaturations. Particularly preferred are block copolymers comprising at least one styrene block and at least one block comprising units selected from butadiene, ethylene, propylene, butylene, isoprene or a mixture thereof. According to a preferred embodiment, the hydrocarbon-based block copolymer is hydrogenated to reduce the residual ethylenic unsaturations after polymerization of the monomers. In particular, the hydrocarbon-based block copolymer is a copolymer, optionally hydrogenated, with styrene blocks and ethylene / C 3-4 alkylene blocks or isoprene blocks.

According to a preferred embodiment, the composition according to the invention comprises at least one diblock copolymer, preferably hydrogenated, preferably chosen from styrene-ethylene / propylene copolymers, styrene-ethylene / butadiene copolymers and styrene-ethylene copolymers. butylene, styrene-isoprene copolymers. Diblock polymers are in particular sold under the name Kraton® G1701E by Kraton Polymers. According to another preferred embodiment, the composition according to the invention comprises at least one triblock copolymer, preferably hydrogenated, preferably chosen from styrene-ethylene / propylene-styrene copolymers, styrene-ethylene / butadiene-styrene copolymers. styrene-isoprene-styrene copolymers, styrene-butadiene-styrene copolymers. Triblock polymers are sold in particular under the names Kraton® G1650, Kraton® D1101, Kraton® D1102 and Kraton® D1160 by Kraton Polymers.

According to one embodiment of the present invention, the hydrocarbon block copolymer is a styrene-ethylene / butylene-styrene triblock copolymer. According to a preferred embodiment of the invention, use may especially be made of a mixture of a styrene-butylene / ethylene-styrene triblock copolymer and a styrene-ethylene / butylene diblock copolymer, in particular those sold under the name Kraton® G1657M. by Kraton Polymers. According to another preferred embodiment, the composition according to the invention comprises a mixture of styrene-butylene / ethylene-styrene triblock hydrogenated copolymer and ethylene-propylene-styrene hydrogenated star polymer, such a mixture possibly being in isododecane or in a other oil. Such mixtures are for example sold by PENRECO under the trade names VERSAGEL® M5960 and VERSAGEL® M5670. Advantageously, a diblock copolymer such as those described above, in particular a diblock copolymer of styrene-ethylene / propylene, or a mixture of diblock and triblock, as described above, is used as the block-type hydrocarbon copolymer. The hydrocarbon-based copolymer (s) may be present in a content ranging from 2.5% to 15% by weight, relative to the total weight of the composition, preferably from 2 to 5% by weight. , 5% to 8% by weight, relative to the total weight of the composition. Silicone compound As indicated above, the composition according to the invention comprises at least one silicone compound chosen from silicone elastomers conveyed in a second oil, from silicone polyamides. Silicone elastomer conveyed in an oil. More particularly, the composition may comprise at least one an organopolysiloxane elastomer (also called silicone elastomer) conveyed in a second oil, in particular in the form of an organopolysiloxane elastomer gel.

By "organopolysiloxane elastomer" or "silicone elastomer" is meant a flexible, deformable organopolysiloxane having viscoelastic properties and especially the consistency of a sponge or a soft sphere. Its modulus of elasticity is such that this material resists deformation and has a limited capacity for extension and contraction. This material is able to recover its original shape after stretching. It is more particularly a crosslinked silicone elastomer. The silicone elastomer particles are conveyed in the form of a gel consisting of an elastomeric organopolysiloxane included in at least one second oil chosen from hydrocarbon-based and silicone oils, or mixtures thereof. In these gels, the organopolysiloxane particles are often non-spherical particles. Preferably, said second oil is a silicone oil and / or a hydrocarbon oil, nonvolatile or volatile. What has been detailed previously concerning the hydrocarbon oils, the additional silicone oils remains valid here and it will be possible to refer to it. Preferably, the second oil, conveying the silicone elastomer, is chosen from volatile oils, more particularly from volatile hydrocarbon oils, preferably from apolar volatile hydrocarbon oils. According to a particularly advantageous embodiment of the invention, the second oil is the same as the hydrocarbon oil described above, and even more preferably, isododecane. Non-emulsifying organopolysiloxane elastomer Thus, the organopolysiloxane elastomer can be obtained by crosslinking addition reaction of diorganopolysiloxane containing at least one silicon-bonded hydrogen and diorganopolysiloxane having silicon-bonded ethylenically unsaturated groups, especially in the presence of platinum catalyst; or by condensation-crosslinking dehydrogenation reaction between a hydroxyl-terminated diorganopolysiloxane and a diorganopolysiloxane containing at least one silicon-bonded hydrogen, especially in the presence of an organotin; or by crosslinking condensation reaction of a hydroxyl-terminated diorganopolysiloxane and a hydrolyzable organopolysiloxane; or by thermal crosslinking of organopolysiloxane, especially in the presence of organoperoxide catalyst; or by crosslinking of organopolysiloxane by high energy radiation such as gamma rays, ultraviolet rays, electron beam. Preferably, the organopolysiloxane elastomer is obtained by addition reaction crosslinking (A) of diorganopolysiloxane containing at least two hydrogens each bonded to a silicon, and (B) diorganopolysiloxane having at least two silicon-bonded ethylenic unsaturation groups. , especially in the presence (C) of platinum catalyst. In particular, the organopolysiloxane elastomer can be obtained by reaction of dimethylvinylsiloxy-terminated dimethylpolysiloxane and trimethylsiloxy-terminated methylhydrogenpolysiloxane in the presence of platinum catalyst.

The compound (A) is the basic reagent for the formation of organopolysiloxane elastomer and the crosslinking is carried out by addition reaction of the compound (A) with the compound (B) in the presence of the catalyst (C). The compound (A) is in particular an organopolysiloxane having at least two hydrogen atoms bonded to separate silicon atoms in each molecule. The compound (A) may have any molecular structure, in particular a linear chain or branched chain structure or a cyclic structure. The compound (A) may have a viscosity at 25 ° C ranging from 1 to 50000 centistokes, in particular to be well miscible with the compound (B). The organic groups bonded to the silicon atoms of the compound (A) may be alkyl groups such as methyl, ethyl, propyl, butyl, octyl; substituted alkyl groups such as 2-phenylethyl, 2-phenylpropyl, 3,3,3-trifluoropropyl; aryl groups such as phenyl, tolyl, xylyl; substituted aryl groups such as phenylethyl; and substituted monovalent hydrocarbon groups such as an epoxy group, a carboxylate ester group, or a mercapto group. Compound (A) may thus be chosen from trimethylsiloxy-terminated methylhydrogenpolysiloxanes, trimethylsiloxy-terminated dimethylsiloxane-methylhydrogensiloxane copolymers, and dimethylsiloxane-methylhydrogensiloxane cyclic copolymers. The compound (B) is advantageously a diorganopolysiloxane having at least two lower alkenyl groups (for example at 02-04); the lower alkenyl group may be chosen from vinyl, allyl and propenyl groups. These lower alkenyl groups may be located at any position of the organopolysiloxane molecule but are preferably located at the ends of the organopolysiloxane molecule. The organopolysiloxane (B) may have a branched chain, straight chain, cyclic or network structure but the linear chain structure is preferred. The compound (B) may have a viscosity ranging from the liquid state to the gum state. Preferably, the compound (B) has a viscosity of at least 100 centistokes at 25 ° C. In addition to the aforementioned alkenyl groups, the other organic groups bonded to the silicon atoms in the compound (B) can be alkyl groups such as methyl, ethyl, propyl, butyl or octyl; substituted alkyl groups such as 2-phenylethyl, 2-phenylpropyl or 3,3,3-trifluoropropyl; aryl groups such as phenyl, tolyl or xylyl; substituted aryl groups such as phenylethyl; and substituted monovalent hydrocarbon groups such as an epoxy group, a carboxylate ester group, or a mercapto group. The organopolysiloxane (B) can be selected from 30 methylvinylpolysiloxanes, the methylvinylsiloxane-dimethylsiloxane copolymers, dimethylpolysiloxanes comprising dimethylvinylsiloxy endings, dimethylsiloxane-methylphenylsiloxane dimethylvinylsiloxy end groups, dimethylsiloxane-diphenylsiloxane-methylvinylsiloxane containing dimethylvinylsiloxy end groups, dimethylsiloxane-methylvinylsiloxane trimethylsiloxy end groups, trimethylsiloxy-terminated dimethylsiloxanemethylphenylsiloxane-methylvinylsiloxane copolymers, dimethylvinylsiloxy-terminated methyl (3,3,3-trifluoropropyl) polysiloxane, and dimethylvinylsiloxy-terminated dimethylsiloxane-methyl (3,3,3-trifluoropropyl) siloxane copolymers. In particular, the organopolysiloxane elastomer may be obtained by reaction of dimethylvinylsiloxy-terminated dimethylpolysiloxane and trimethylsiloxy-terminated methylhydrogenpolysiloxane in the presence of platinum catalyst.

According to another variant, the compound (B) may be an unsaturated hydrocarbon compound having at least two lower alkenyl groups (for example at 02-04); the lower alkenyl group may be chosen from vinyl, allyl and propenyl groups. These lower alkenyl groups may be located at any position of the molecule but are preferably located at the ends. By way of example, mention may be made of hexadiene, and in particular 1,5-hexadiene. Advantageously, the sum of the number of ethylenic groups per molecule of the compound (B) and the number of hydrogen atoms bonded to silicon atoms per molecule of the compound (A) is at least 5.

It is advantageous that the compound (A) is added in an amount such that the molecular ratio between the total amount of hydrogen atoms bonded to silicon atoms in the compound (A) and the total amount of all the groups to Ethylenic unsaturation in the compound (B) is in the range of 1.5: 1 to 20: 1.

Compound (C) is the catalyst for the crosslinking reaction, and is especially chloroplatinic acid, chloroplatinic acid-olefin complexes, chloroplatinic acid-alkenylsiloxane complexes, chloroplatinic acid-diketone complexes, platinum black, and platinum. on support. The catalyst (C) is preferably added from 0.1 to 1000 parts by weight, more preferably from 1 to 100 parts by weight, as clean platinum metal per 1000 parts by weight of the total amount of the compounds (A) and ( B). The elastomer is advantageously a non-emulsifying elastomer. The term "non-emulsifying" defines organopolysiloxane elastomers that do not contain a hydrophilic chain, and in particular that do not contain polyoxyalkylene (especially polyoxyethylene or polyoxypropylene) units or polyglyceryl units. The organopolysiloxane elastomer particles are preferably transported in the form of a gel consisting of an elastomeric organopolysiloxane included in at least one hydrocarbon oil and / or a silicone oil, as defined below. In these gels, the organopolysiloxane particles may be spherical or non-spherical particles. Examples of spherical non-emulsifying elastomers that may be used are those sold under the names "DC 9040", "DC 9041", "DC 9509" and "DC 9505" by Dow Corning. It is also possible to use those sold under the names "KSG-6", "KSG-15", "KSG-16", "KSG-18", "KSG-41", "KSG-42", "KSG-43". "KSG-44" by Shin Etsu Company; Gransil SR 5CYC gel, Gransil SR DMF 10 gel, Gransil SR DC556 gel from Gransil RPS from Grant Industries; 1229-02-167, 1229-02-168 and "SFE 839" from General Electric. According to a preferred embodiment, the composition according to the invention comprises, as organopolysiloxane elastomer carried in an oil, a non-emulsifying elastomer, preferably spherical, preferably chosen from the compounds sold under the names "DC 9040". , "DC 9041", "DC 9509", "DC 9505" by Dow Corning. According to one particular embodiment, elastomers may be used in admixture with a cyclic silicone oil. There may be mentioned, for example, the cross-linked organopolysiloxane / cyclopentasiloxane mixture or a cross-linked organopolysiloxane / cyclohexasiloxane mixture such as, for example, Gransil RPS D5 or Gransil RPS D6 from Grant Industries. Emulsifying organopolysiloxane elastomer According to another embodiment, the composition according to the invention comprises, as organopolysiloxane elastomer carried in a second oil, an emulsifying elastomer. By "emulsifying organopolysiloxane elastomer" is meant an organopolysiloxane elastomer comprising at least one hydrophilic chain, such as polyoxyalkylenated organopolysiloxane elastomers and polyglycerolated silicone elastomers.

The emulsifying organopolysiloxane elastomer may be chosen from polyoxyalkylenated organopolysiloxane elastomers. The polyoxyalkylenated organopolysiloxane elastomer is a crosslinked organopolysiloxane elastomer obtainable by crosslinking addition reaction of diorganopolysiloxane containing at least one silicon-bonded hydrogen and a polyoxyalkylene having at least two ethylenically unsaturated groups. Preferably, the polyoxyalkylenated organopolysiloxane elastomer is obtained by crosslinking addition reaction (A1) of diorganopolysiloxane containing at least two hydrogens each bonded to a silicon, and (B1) of polyoxyalkylene having at least two ethylenically unsaturated groups, in particular in the presence (C1) of platinum catalyst, as for example described in patents US 5,236,986, US 5,412,004 and US 2010/0330011. In particular, the organopolysiloxane may be obtained by reaction of polyethylene oxide (especially polyoxyethylene and / or polyoxypropylene) with 17 dimethylvinylsiloxy termini and of trimethylsiloxy-terminated methylhydrogenpolysiloxane in the presence of platinum catalyst. The organic groups bonded to the silicon atoms of the compound (A1) can be alkyl groups having from 1 to 18 carbon atoms, such as methyl, ethyl, propyl, butyl, octyl, decyl, dodecyl (or lauryl), myristyl, cetyl stearyl; substituted alkyl groups such as 2-phenylethyl, 2-phenylpropyl, 3,3,3-trifluoropropyl; aryl groups such as phenylethyl; and substituted monovalent hydrocarbon groups such as an epoxy group, a carboxylate ester group, or a mercapto group.

The compound (A1) can thus be chosen from trimethylsiloxy-terminated methylhydrogenpolysiloxanes, trimethylsiloxy-terminated dimethylsiloxane-methylhydrogenosiloxane copolymers, dimethylsiloxane-methylhydrogenosiloxane cyclic copolymers, and trimethylsiloxy-terminated dimethylsiloxane-methylhydrogensiloxane-laurylmethylsiloxane copolymers. Compound (C1) is the catalyst of the crosslinking reaction, and is especially chloroplatinic acid, chloroplatinic acid-olefin complexes, chloroplatinic acid-alkenylsiloxane complexes, chloroplatinic acid-diketone complexes, platinum black, and platinum. on support.

Advantageously, the polyoxyalkylenated organopolysiloxane elastomers may be formed from divinyl compounds, in particular polyoxyalkylenes having at least two vinyl groups, reacting with Si-H bonds of a polysiloxane. Polyoxyalkylenated elastomers are described in particular in US Pat. Nos. 5,236,986, 5,412,004, 5,837,793, 5,811,487 and 5,2010 / 033,0011 to which reference may be made. As polyoxyalkylenated organopolysiloxane elastomers, those sold under the names "KSG-21", "KSG-20", "KSG30", "KSG-31", "KSG-32", "KSG-33", "KSG-33" can be used. KSG-210, KSG-310, KSG-320, KSG-330, KSG-340 by Shin Etsu, DC9010, DC9011 by Dow Corning. As a suitable silicone oil-commercially available silicone elastomer, mention may be made of the compound dimethicone / bis-isobutyl PPG-20 crosspolymer in isododecane, sold, for example, under the name Dow Corning EL-8050 ID Silicone Organic Elastomer BlendO; dimethicone / bis-isobutyl PPG-20 crosspolymer in isodecyl neopentanoate sold under the name Dow Corning EL-8051 IN SILICONE ORGANIC ELASTOMER BLENDO; dimethicone / bis-isobutyl PPG-2018 crosspolymer in isohexadecane sold under the name Dow Corning EL-8052 IH SILICONE ORGANIC ELASTOMER BLENDO. Such compounds are described in particular in document US 2010/0330011 to which reference may be made.

The emulsifying organopolysiloxane elastomer may also be chosen from polyglycerolated organopolysiloxane elastomers. The polyglycerolated organopolysiloxane elastomer according to the invention is an organopolysiloxane elastomer obtainable by crosslinking addition reaction of diorganopolysiloxane containing at least one silicon-bonded hydrogen and polyglycerolated compounds having ethylenically unsaturated groups, especially in the presence of of platinum catalyst. Preferably, the organopolysiloxane elastomer is obtained by crosslinking addition reaction (A2) of diorganopolysiloxane containing at least two hydrogens each bonded to a silicon, and (B2) of glycerolated compounds having at least two ethylenically unsaturated groups, in particular in the presence (C2) of platinum catalyst. In particular, the organopolysiloxane may be obtained by reaction of dimethylvinylsiloxy-terminated polyglycerol compound and trimethylsiloxy-terminated methylhydrogenpolysiloxane in the presence of platinum catalyst. The compound (A2) is the basic reagent for the formation of an organopolysiloxane elastomer and the crosslinking is carried out by addition reaction of the compound (A2) with the compound (B2) in the presence of the catalyst (C2).

The compound (A2) is in particular an organopolysiloxane having at least 2 hydrogen atoms bonded to distinct silicon atoms in each molecule. The compound (A2) may have any molecular structure, in particular a linear chain or branched chain structure or a cyclic structure. The compound (A2) may have a viscosity at 25 ° C ranging from 1 to 50000 centistokes, in particular to be well miscible with the compound (B2). The organic groups bonded to the silicon atoms of the compound (A2) can be alkyl groups having from 1 to 18 carbon atoms, such as methyl, ethyl, propyl, butyl, octyl, decyl, dodecyl (or lauryl), myristyl, cetyl stearyl; substituted alkyl groups such as 2-phenylethyl, 2-phenylpropyl, 3,3,3-trifluoropropyl; aryl groups such as phenyl, tolyl, xylyl; substituted aryl groups such as phenylethyl; and substituted monovalent hydrocarbon groups such as an epoxy group, a carboxylate ester group, or a mercapto group. Preferably, said organic group is selected from methyl, phenyl and lauryl groups. The compound (A2) may thus be chosen from trimethylsiloxy-terminated methylhydrogenpolysiloxanes, trimethylsiloxy-terminated dimethylsiloxane-methylhydrogenosiloxane copolymers, dimethylsiloxane-methylhydrogensiloxane cyclic copolymers and trimethylsiloxy-terminated dimethylsiloxane-methylhydrogensiloxane-laurylmethylsiloxane copolymers. The compound (B2) can be a polyglycerolated compound corresponding to the following formula (B '): CmF-12m-1 Gly L-Cm1-12m-1 (B') in which m is an integer ranging from 2 to 6, n is a an integer ranging from 2 to 200, preferably ranging from 2 to 100, preferably ranging from 2 to 50, preferably ranging from 2 to 20, preferably ranging from 2 to 10, and preferably ranging from 2 to 5, and in particular equal to 3; Gly designates; Advantageously, the sum of the number of ethylenic groups per molecule of the compound (B2) and the number of hydrogen atoms bonded to the silicon atoms per molecule of the compound (A2) is at least 4.

It is advantageous that the compound (A2) is added in an amount such that the molecular ratio between the total amount of hydrogen atoms bonded to silicon atoms in the compound (A2) and the total amount of all the groups to Ethylenic unsaturation in the compound (B2) is in the range of 1/1 to 20/1.

Compound (02) is the catalyst for the crosslinking reaction, and is especially chloroplatinic acid, chloroplatinic acid-olefin complexes, chloroplatinic acid-alkenylsiloxane complexes, chloroplatinic acid-diketone complexes, platinum black, and platinum. on support. The catalyst (O 2) is preferably added from 0.1 to 1000 parts by weight, more preferably from 1 to 100 parts by weight, as clean platinum metal per 1000 parts by weight of the total amount of the compounds (A2) and ( B2). The polyglycerolated organopolysiloxane elastomer is transported in gel form in at least one hydrocarbon oil and / or a silicone oil. In these gels, the polyglycerolated elastomer is often in the form of non-spherical particles. As polyglycerolated organopolysiloxane elastomers, those sold under the names "KSG-710", "KSG-810", "KSG-820", "KSG-830", "KSG-840" by the company Shin Etsu can be used. Preferably, the silicone elastomer conveyed in a second oil is an emulsifying elastomer, preferably comprising at least one hydrophilic chain, and in particular polyoxyalkylene units. According to a particular embodiment of the invention, the second oil is chosen from hydrocarbon oils, volatile, apolar. Advantageously, the second oil is identical to the hydrocarbon oil mentioned above. Silicone Polyamide The first composition of the product according to the invention comprises at least one silicone polyamide. The silicone polyamides are preferably solid at ambient temperature (25 ° C.) and atmospheric pressure (760 mmHg). For the purposes of the invention, the term "polymer" means a compound having at least 2 repeating units, preferably at least 3 repeating units and more preferably 10 repeating units. The silicone polyamides of the composition of the invention may be polymers of the polyorganosiloxane type, for instance those described in documents US-A-5,874,069, US-A-5,919,441, US-A-6,051,216 and US-A-5,981,680. .

According to the invention, the silicone polymers may belong to the following two families: (1) polyorganosiloxanes comprising at least two amide groups, these two groups being located in the polymer chain, and / or (2) polyorganosiloxanes comprising at least two amide groups, these two groups being located on grafts or branches. A) According to a first variant, the silicone polymers are polyorganosiloxanes as defined above and whose units capable of establishing hydrogen interactions are arranged in the polymer chain.

The silicone polymers may more particularly be polymers comprising at least one unit corresponding to the general formula I: ## STR5 ## in which: G 'represents 0 (O) when G represents -C (O) -NH-Y-NH-, and G 'is -NH- when G is -NH-C (O) -YC (O) -2) R4, R5, R6 and R7, the same or different, represent a group chosen from: - saturated or unsaturated, linear, branched or cyclic, C 1 to O 40 hydrocarbon-based groups, which may contain in their chain one or more oxygen, sulfur and / or nitrogen atoms, and may be substituted in part or totally by fluorine atoms, - aryl groups at 06 to 010, optionally substituted with one or more C 1 to C 4 alkyl groups, - polyorganosiloxane chains containing or not containing one or more oxygen atoms, sulfur, and / or nitrogen, 3) the X, which may be identical or different, represent a linear or branched alkylene di-yl group C1 to C30, which may contain in its chain one or more oxygen and / or nitrogen atoms, 4) Y is a divalent linear or branched alkylene, arylene, cycloalkylene, alkylarylene or arylalkylene group, saturated or unsaturated, C 1 to C 0, which may comprise one or more oxygen, sulfur and / or nitrogen atoms, and / or bearing as substituent one of the following atoms or groups of atoms: fluorine, hydroxyl, cycloalkyl from 0 to 8, C1 to C40 alkyl, C10 to C10 aryl, phenyl optionally substituted with 1 to 3 C1 to C3 alkyl, C1 to C3 hydroxyalkyl and C1 to C6 aminoalkyl, or 5) Y is a group of the formula: Wherein T represents a trivalent or tetravalent hydrocarbon group, linear or branched, saturated or unsaturated, at C3 to O24 optionally substituted by a polyorganosiloxane chain, and which may contain one or more atoms selected from O, N and S, or T represents a trivalent atom chosen from N, P and Al, and - R8 represents a linear or branched C1-C50 alkyl group or a polyorganosiloxane chain, which may comprise one or more ester, amide, urethane, thiocarbamate, urea, thiourea and / or sulphonamide groups which may be bonded or not to another chain of the polymer, 6) n is an integer ranging from 2 to 500, preferably from 2 to 200, and m is an integer ranging from 1 to 1000, preferably from 1 to 700 and more preferably from 6 to 200. Preferably, m is an integer from 50 to 150. According to one embodiment of the invention, 80% of the R 4, R 5, R 6 and R 7, of the polymer are selected from preferably from methyl, ethyl, phenyl and 3,3,3-trifluoropropyl groups. In another embodiment, 80% of the R4, R5, R6 and R7, of the polymer are methyl groups.

According to the invention, Y may represent various divalent groups, optionally additionally having one or two free valences to establish bonds with other units of the polymer or copolymer. Preferably, Y represents a group chosen from: a) C 1 to C 20, preferably C 1 to C 10 linear alkylene groups, b) branched alkylene groups which may comprise unsaturated rings and unsaturations, at C 30 to C 05, c ) C 5 -C 6 cycloalkylene groups, d) phenylene groups optionally substituted by one or more C 1 to C 40 alkyl groups, e) C 1 to C 20 alkylene groups having from 1 to 5 amide groups, f) alkylene groups. C 1 to C 20, having one or more substituents selected from hydroxyl, C 3 -C 8 cycloalkane, C 1 -C 3 hydroxyalkyl and C 1 -C 6 alkylamines, and g) polyorganosiloxane chains of the formula: R 5 -R 4 R 4 Si 2 ## STR5 ## wherein R 4, R 5, R 6, R 7, T and m are as defined above. According to the second variant, the polyorganosiloxanes may be polymers comprising at least one unit corresponding to formula (II): embedded image in which - R 4 and R 6, which may be identical or different, are such that defined above for the formula (I), R1 ° represents a group as defined above for R4 and R6, or represents the group of formula -XG-R12in which X and G are as defined above for the formula (I) and R12 represents a hydrogen atom or a linear, branched or cyclic hydrocarbon group, saturated or unsaturated, having from 1 to 50 carbon atoms optionally comprising in its chain one or more atoms chosen from O, S and N, optionally substituted; with one or more fluorine atoms and / or one or more hydroxyl groups, or a phenyl group optionally substituted by one or more C 1 -C 4 alkyl groups, -11 K represents the group of formula -XG-R 12 in which X, G and R12 are as defined above, - m 1 is an integer ranging from 1 to 998, and - m2 is an integer ranging from 2 to 500. According to the invention, the silicone polymer used as structuring agent may be a homopolymer, that is to say a polymer comprising a plurality of identical units, in particular units of formula (I) or formula (II). According to the invention, it is also possible to use a silicone polymer constituted by a copolymer comprising several different units of formula (I), that is to say a polymer in which at least one of R4, R5, R6, R7 , X, G, Y, m and n are different in one of the patterns. The copolymer may also be formed of several units of formula (II), in which at least one of R4, R6, R10, R ", m1 and m2 is different in at least one of the units. a polymer comprising at least one unit of formula (I) and at least one unit of formula (II), the units of formula (I) and the units of formula (II) being identical or different from one another.

According to a variant of the invention, it is also possible to use a polymer comprising in addition at least one hydrocarbon unit comprising two groups capable of establishing hydrogen interactions chosen from ester, amide, sulfonamide, carbamate, thiocarbamate, urea and urethane groups, thiourea, oxamido, guanidino, biguanidino and their combinations. These copolymers may be block polymers, block polymers or graft polymers. According to an advantageous embodiment of the invention, the groups capable of establishing hydrogen interactions are amide groups of formula -C (O) NH- and -HN-C (O) -. In this case, the structuring agent may be a polymer comprising at least one unit of formula (III) or (IV): ## STR2 ## or R 4 -R 5 -CX SiXC NH Y NH SiO R 6 R 7 O -R 4 -SiO R 6 R 5 Si Wherein R4, R5, R6, R7, X, Y, m and n are as defined above. In these polyamides of formula (III) or (IV), m ranges from 1 to 700, in particular from 15 to 500 and in particular from 50 to 200, and is particularly preferably from 1 to 500, preferably from 1 to 100 and better still from 4 to 25, X is preferably a linear or branched alkylene chain having 1 to 30 carbon atoms, in particular 1 to 20 carbon atoms, especially 5 to 15 carbon atoms and more particularly 10 carbon atoms; and Y is preferably a linear or branched alkylene chain or which may comprise rings and / or unsaturations, having from 1 to 40 carbon atoms, in particular from 1 to 20 carbon atoms, and more preferably from 2 to 6 carbon atoms. carbon atoms, in particular of 6 carbon atoms.

In the formulas (III) and (IV), the alkylene group representing X or Y may optionally contain in its alkylene part at least one of the following: 1) 1 to 5 amide groups, urea, urethane, or carbamate, 2) a C 5 -C 6 cycloalkyl group, and 3) a phenylene group optionally substituted with 1 to 3 identical or different C 1 to C alkyl groups. In the formulas (III) and (IV), the alkylene groups may also be substituted. by at least one member selected from the group consisting of: - a hydroxy group, - a C3 to C8 cycloalkyl group, - one to three C 1 to C 40 alkyl groups, - a phenyl group optionally substituted with one to three alkyl groups. C1 to C3, - a C1 to C3 hydroxyalkyl group, and - a C1 to C6 aminoalkyl group. In these formulas (III) and (IV), Y may also represent: R8 where R8 represents a polyorganosiloxane chain, and T represents a group of formula: R 13 (CH 2), C (CH 2) b OR (CH 2) a N (CHA (CH2) c (CH2) c wherein a, b and c are independently integers from 1 to 10, and R13 is a hydrogen atom or a group such as those defined for R4, R5, R6 and R7.

In the formulas (III) and (IV), R4, R5, R6 and R7 preferably represent, independently, a linear or branched C1-C40 alkyl group, preferably an OH3, O2H5, n-O3H7 or isopropyl group, a polyorganosiloxane chain or a phenyl group optionally substituted with one to three methyl or ethyl groups.

According to a preferred embodiment, the silicone polyamide comprises at least one unit of formula (III) and / or (IV). As has been seen previously, the polymer may comprise identical or different units of formula (III) or (IV). Thus, the polymer may be a polyamide containing several units of formula (III) or (IV) of different lengths, ie a polyamide corresponding to formula (V): R 5 R 4 R 5 O X 'F-StO R 6 0 0 0 HH R 6 Where X, Y, n, R4 to R7 have the meanings given above, m1 and m2 which are different, are chosen in the range from 1 to 1000, and p is an integer from 2 to 300. In this formula, the units may be structured to form either a block copolymer, a random copolymer, or an alternating copolymer. In this copolymer, the units may be not only of different lengths but also of different chemical structures, for example having different Ys. In this case, the polymer may correspond to formula VI: R 4 R 5 R 4 R 5 O wherein R 4 to R 7, X, Y, ml, m 2, n and p have the meanings given above and Y 1 is different from Y but chosen among the groups defined for Y. As previously, the different units may be structured to form either a block copolymer, a random copolymer, or an alternating copolymer. In this first embodiment of the invention, the structuring agent may also consist of a graft copolymer. Thus, the polyamide with silicone units can be grafted and optionally crosslinked with silicone chains containing amide groups. Such polymers can be synthesized with trifunctional amines. In this case, the polymer may comprise at least one unit of formula (VII): ## STR1 ## XNNP (VI) 2 HHI R7 27 SiO Si Si R17 mi NH Y NH X NH (VII) in which X1 and X2 which are identical or different, have the meaning given for X in the formula (I), n is such that defined in formula (I), Y and T are as defined in formula (I), R14 to R21 are groups selected from the same group as R4 to R7, m1 and m2 are numbers in the range of from 1 to 1000, and p is an integer from 2 to 500. In formula (VII), it is preferred that: p is from 1 to 25, more preferably from 1 to 7, R1 to -21 are methyl groups, - T corresponds to one of the following formulas: R22 R23 R24 R24 R25 R25 R25 R23 Al R24 R25 in which R22 is a hydrogen atom or a group selected from the 28 groups defined for R4 to R7, and R23, R24 and R25 are independently alkyl groups ene, linear or branched, more preferably, with the formula: R 23 R 24 R 25, in particular with R 23, R 24 and R 25 representing -CH 2 -CH 2 -, and m 2 are from 15 to 500, and more preferably from 15 to 45; X1 and X2 are - (CH2) 10-, and - Y is -C1-12-. These silicone-grafted polyamides of formula (VII) may be copolymerized with polyamide-silicones of formula (II) to form block copolymers, alternating copolymers or random copolymers. The weight percentage of grafted silicone units (VII) in the copolymer can range from 0.5 to 30% by weight. According to the invention, as seen above, the siloxane units may be in the main chain or backbone of the polymer, but they may also be present in grafted or pendant chains. In the main chain, the siloxane units may be in the form of segments as described above. In the pendant or grafted chains, the siloxane units may appear individually or in segments. According to an alternative embodiment of the invention, it is possible to use a copolymer of silicone polyamide and of hydrocarbon-based polyamide, ie a copolymer comprising units of formula (III) or (IV) and hydrocarbon-based polyamide units. In this case, the polyamide-silicone units may be disposed at the ends of the hydrocarbon polyamide. According to a preferred embodiment, the silicone polyamide comprises units of formula III. wherein R 4, R 5, R 6 and R 7 independently represent a linear or branched C 1 to C 40 alkyl group, preferably a CH 3, C 2 H 5, n-group; C3H7 29 or isopropyl, a polyorganosiloxane chain or a phenyl group optionally substituted with one to three methyl or ethyl groups, and m ranges from 1 to 700, in particular from 15 to 500 and in particular from 50 to 200, and n is particularly preferably from 1 to 500, preferably from 1 to 100 and most preferably from 4 to 25. Preferably, according to this embodiment, the groups R4, R5, R6 and R7 represent methyl groups, one of X and Y represents an alkylene group of 6 carbon atoms and the other an alkylene group of 11 carbon atoms, where n is the polymerization degree (DP) of the polymer. By way of example of such silicone polyamides, mention may be made of the compounds sold by Dow Corning under the name DC 2-8179 (DP 100) and DC 2-8178 (DP 15) whose INCI name is "Nylon- 611 / dimethicone copolymers ". Advantageously, the composition according to the invention comprises at least one polydimethylsiloxane block polymer of general formula (I) having an index m value of about 100. The index "m" corresponds to the degree of polymerization of the silicone portion of the polymer. More preferably, the composition according to the invention comprises at least one polymer comprising at least one unit of formula (III) in which m ranges from 50 to 200, in particular from 75 to 150, and preferably of the order of 100. More preferably, R4, R6, R6 and R7 independently represent a linear or branched C1-C8 alkyl group, preferably a CH3, C2H5, n-C3H7 or isopropyl group in formula (III). By way of example of a silicone polymer which may be used, mention may be made of one of the silicone polyamides obtained according to Examples 1 to 3 of US Pat. No. 5,981,680. According to one preferred embodiment, the polyamide silicone polymer marketed by the US Pat. Dow Corning Corporation under the name DC 2-8179 (DP 100). According to an alternative embodiment of the invention, the polymer consists of a homopolymer or copolymer comprising urethane or urea groups. These polymers are described in detail in application WO 2003/106614 published on 24/12/2003. As before, such a polymer may comprise polyorganosiloxane units containing two or more urethane and / or urea groups, either in the polymer backbone, side chains or pendent groups. The polymers and / or copolymers used in the composition of the invention advantageously have a solid state transition temperature in the liquid state of from 45 ° C to 190 ° C. Preferably, they have a solid state transition temperature in the liquid state of from 70 to 130 ° C and more preferably from 80 ° C to 105 ° C.

The content of silicone compound, expressed in active material, varies between 0.5 and 20% by weight, more particularly between 1 and 15% by weight, preferably from 2 to 10% by weight (expressed as active ingredient), relative to the weight of the composition.

Waxes The composition according to the invention may optionally comprise at least one wax. For the purposes of the present invention, the term "wax" means a lipophilic compound, solid at room temperature (25 ° C.), with a reversible solid / liquid state change, having a melting point of greater than or equal to 30 ° C. at 120 ° C. The melting point of the wax can be measured using a differential scanning calorimeter (D.S.C.), for example the calorimeter sold under the name DSC 30 by the company METLER.

The waxes may be hydrocarbon-based, fluorinated and / or silicone-based and may be of vegetable, mineral, animal and / or synthetic origin. In particular, the waxes have a melting point greater than 25 ° C. and better still greater than 45 ° C. In particular, it is possible to use hydrocarbon-based waxes such as beeswax, lanolin wax, and Chinese insect waxes; rice wax, Carnauba wax, Candelilla wax, Ouricurry wax, Alfa wax, cork fiber wax, sugar cane wax, Japanese wax and sumac wax ; montan wax, microcrystalline waxes, paraffins and ozokerite; polyethylene waxes, waxes obtained by Fisher-Tropsch synthesis and waxy copolymers and their esters. Mention may also be made of waxes obtained by catalytic hydrogenation of animal or vegetable oils having linear or branched C8-C32 fatty chains. Among these, there may be mentioned hydrogenated jojoba oil, isomerized jojoba oil such as trans isomerized partially hydrogenated jojoba oil manufactured or marketed by Desert VVhale under the trade reference ISO-JOJOBA-500 hydrogenated sunflower oil, hydrogenated castor oil, hydrogenated coconut oil and hydrogenated lanolin oil, di- (trimethyl-1,1,1-propane) tetrastearate sold under the name " HEST 2T-4S "by the company HETERENE, di (trimethyl-1,1,1-propane) tetra-enehenate sold under the name HEST 2T-4B by the company HETERENE. Mention may also be made of silicone waxes such as alkyl or alkoxy dimethicone having from 16 to 45 carbon atoms, and polypropyl silsesquioxane waxes (as described in patent WO2005 / 100444), with in particular the compound 030045 alkyldimethylsilyl polypropylsilsesquioxanes available. commercially available from Dow Corning under the trade name SVV-8005 030 Resin Wax.

It is also possible to use the wax obtained by hydrogenation of esterified olive oil with the stearyl alcohol sold under the name "PHYTOVVAX Olive 18 L 57" or even the waxes obtained by hydrogenation of castor oil esterified with alcohol. cetyl sold under the name "PHYTOVVAX ricin 16L64 and 22L73", by the company SOPHIM. Such waxes are described in application FR-A-2792190. If the composition comprises, their content advantageously represents less than 20% by weight, more particularly less than 10% by weight, preferably less than 5% by weight relative to the weight of the composition. Preferably, the composition is free of wax. Dyestuffs The compositions in accordance with the invention may comprise at least one dyestuff. This (or these) dyestuff (s) is (or are) preferably chosen from pulverulent materials, fat-soluble dyes, water-soluble dyes, and mixtures thereof. Preferably, the compositions according to the invention comprise at least one pulverulent dyestuff. The pulverulent dyestuffs may be chosen from pigments and nacres, preferably from pigments. The pigments may be white or colored, mineral and / or organic, coated or uncoated. Mention may be made, among mineral pigments, of metal oxides, in particular titanium dioxide, optionally surface-treated, oxides of zirconium, zinc or cerium, and also oxides of iron, titanium or chromium, manganese violet, ultramarine blue, chromium hydrate and ferric blue. Among the organic pigments, mention may be made of carbon black, D & C type pigments, and lacquers based on cochineal carmine, barium, strontium, calcium, aluminum. The nacres may be chosen from white pearlescent pigments such as mica coated with titanium or bismuth oxychloride, colored pearlescent pigments such as titanium mica with iron oxides, titanium mica with, for example, ferric blue or chromium oxide, titanium mica with an organic pigment of the aforementioned type as well as pearlescent pigments based on bismuth oxychloride. Fat-soluble dyes are, for example, Sudan Red, D & C Red 17, D & C Green 6, 8-carotene, soybean oil, Sudan Brown, D & C Yellow 11, D & C Violet 2, D & C Orange 5, the yellow quinoline, the annatto.

These dyestuffs may be present in a content ranging from 0.2 to 40% by weight, more particularly from 0.5% to 22% by weight relative to the total weight of the composition, in particular from 0.8% to 15% by weight. % by weight relative to the total weight of the composition.

Additional Charges "Charges" include colorless or white, solid particles of all shapes, which are in an insoluble form and dispersed in the medium of the composition, and are of inorganic or organic nature. As used herein, the term "inorganic filler" means any inorganic solid which is insoluble in the medium at room temperature (25 ° C.). By "inorganic" is meant any compound or polymer whose chemical structure does not include a carbon atom. The fillers may or may not be superficially coated, and in particular they may be surface-treated with silicones, amino acids, fluorinated derivatives or any other substance which promotes dispersion and compatibility of the filler in the composition. Such fillers are distinct from the mineral thickeners as well as previously described coloring agents.

The charges may be spherical, that is to say comprise at least one rounded general portion, preferably defining at least one portion of sphere, preferably defining internally a concavity or hollow (sphere, globules, bowls, horseshoe , etc.) or lamellar.

Such fillers are advantageously chosen from: silica powders, such as the porous silica microspheres sold under the name SILICA BEADS SB-700 by the company MYOSHI; "SUNSPHERE® H51", "SUNSPHERE® H33" by the company ASAHI GLASS; polydimethylsiloxane-coated amorphous silica microspheres sold under the name "SA SUNSPHERE® H 33", "SA SUNSPHERE® H53" by the company ASAH I GLASS. acrylic (co) polymer powders, and their derivatives, in particular: the polymethyl methacrylate powder sold under the names COVABEAD® LH85 by the company VVACKHERR, or MICROSPHERE M-100® by the company Matsumoto; * the polymethyl methacrylate / ethylene glycol dimethacrylate powder sold under the name DOW CORNING 5640 Microsponge® SKIN OIL ADSORBER by the company Dow Corning; GANZPEARL® GMP-0820 by the company GANZ CH EM ICAL, * the allyl polymethacrylate / ethylene glycol dimethacrylate powder sold under the name POLY-PORE® L200, POLY-PORE E200 by AMCOL Health and Beauty Solutions Inc., the ethylene glycol dimethacrylate / lauryl methacrylate copolymer powder sold under the name POLYTRAP® 6603 by the company Dow Corning; * the acrylate / alkyl acrylate copolymer powder optionally crosslinked acrylate / ethylhexyl acrylate crosslinked copolymer sold under the name TECHPOLYM ER ACP-8C by the company SEKISUI PLASTICS, 20 * the ethylene-acrylate copolymer powder, such as that marketed under the name FLOBEADS® by the company Sumitomo Seika Chemicals, * the hollow particles of expanded acrylonitrile (co-) polymer sold under the name EXPANCEL by the company Expancel, or the microspheres marketed under the name MICROPEARL F 80 EDO by the company Matsumoto; polyurethane powders, for example sold under the names PLASTIC POVVDER D-400, PLASTIC POVVDER CS-400, PLASTIC POVVDER D800 and PLASTIC POVVDER T-75 by the company TOSHIKI; silicone powders advantageously chosen from: polymethylsilsesquioxane powders, in particular those sold under the name Tospearl, in particular Tospearl 145 A, by the company Momentive Performance Materials, organopolysiloxane elastomer powders coated with silicone resin, especially silsesquioxane resin, such as the products sold under the name KSP-100, KSP-101, KSP-102, KSP-103, KSP-104, KSP-105 by the company Shin Etsu, (INCI name: vinyl dimethicone / methicone) silsesquioxane Crosspolymer); Silicone elastomer powders such as the products sold under the name Trefil® Powder E-5050 and Trefil® Powder E-5060 by the company Dow Corning; and the powders of organosilicone particles, for example in the form of bowls such as those described above. in JP-2003 128 788, JP-A-2000-191789, or in the application EP1579841 and sold in particular by TAKEMOTO OIL & FAT. polyamide powders, such as Nylon®, in particular nylon 12; as the nylon powders sold under the name ORGASOL 2002 10 EXS NAT COS by the company ARKEMA. powders of natural organic materials such as polysaccharide powders, and in particular starch powders, in particular corn, wheat or rice starch, crosslinked or otherwise, starch powders crosslinked with anhydride octenylsuccinate, sold under the name DRY-FLOC) by the company National Starch, waxy maize starch powders such as those sold under the names C * GEL 04201 by the company CARGILL, AMIDON DE MAIS B by the company ROQUETTE, and ORGANIC CORN STARCH by DRACO NATURAL PRODUCTS; spherical cellulose microparticles, such as CELLULOBEADS D-10, CELLULOBEADS D-5 and CELLULOBEADS USF sold by the company DAITO KASEI KOGYO. the amino acid particles N-acylated at C8-C22 carbon atoms, the amino acid may be for example lysine, glutamic acid, alanine, preferably lysine. For example AMIHOPE LL by the company AJINOMOTO or 25 that is marketed under the name CORUM 5105 S by CORUM. Perlite powders, for instance those sold by the company Voral MineralS under the trade name Perlite P1430, Perlite P2550, Perlite P2040, or Optimatm 1430 OR or 2550 OR. EUROPERL EMP-2 and 30 EUROPERL 1 by the company IMERYS - zeolites such as products marketed by ZEOCHEM under the names ZEOFLAIR 300, ZEOFLAIR 200, ZEOFLAIR 100, X-MOL and X-MOL MT. calcium carbonate magnesium particles, such as those marketed by the company IMERYS under the name CALCIDOL, by the company LCVV (Sensient) under the name CARBOMAT, by the company OMYA under the name OMYACARE S 60-AV. It is also possible to use talc particles, for example sold under the names LUZENAC PHARMA M and UM by the company IMERYS, ROSE TALC and TALC SG-2000 by the company Nippon Talc; natural or synthetic mica particles, such as those sold under the names MICA M RP and SILK MICA by the company Merck, or the product sold under the name Sericite S-152-BC by the company Myoshi Kasei; calcium carbonate and magnesium hydrogen carbonate; hydroxyapatite; boron nitride; fluorphlogopite, and their mixtures. The spherical fillers may be coated with a hydrophobic treatment agent. The hydrophobic treatment agent may be selected from fatty acids such as stearic acid; metallic soaps such as aluminum dimyristate, aluminum salt of hydrogenated tallow glutamate; amino acids; N-acyl amino acids or their salts; lecithin, isopropyl trisostearyl titanate, and mixtures thereof. The N-acyl amino acids may comprise an acyl group having from 8 to 22 carbon atoms, for example a 2-ethyl hexanoyl, caproyl, lauroyl, myristoyl, palmitoyl, stearoyl or cocoyl group. The salts of these compounds may be the aluminum, magnesium, calcium, zirconium, zinc, sodium or potassium salts. The amino acid can be for example lysine, glutamic acid, alanine. The term alkyl mentioned in the compounds mentioned above denotes in particular an alkyl group having from 1 to 30 carbon atoms, preferably having from 5 to 16 carbon atoms. The composition advantageously has an additional filler content (s) of less than or equal to 10% by weight, preferably less than or equal to 5% by weight, relative to the weight of the composition. Preferably, the composition is free of fillers. Hydrocarbon resin The composition according to the invention also comprises at least one hydrocarbon resin chosen from indene hydrocarbon resins, aliphatic pentanediene resins, mixed pentanediene and indene resins, diene resins of cyclopentanediene dimers, diene resins of dimers of isoprene and their mixtures.

Preferably, the hydrocarbon resin has a number average molecular weight of less than or equal to 10,000 g / mol, especially ranging from 250 to 5,000 g / mol, better still, less than or equal to 2,000 g / mol, especially ranging from 250 to 2,000 g / mol. The number average molecular weights (Mn) were determined by liquid gel permeation chromatography (THF solvent, calibration curve established with linear polystyrene standards, refractometric detector). The resin of the composition according to the invention is advantageously a so-called tackifying resin. Such resins are especially described in the Handbook of Pressure Sensitive Adhesive, edited by Donatas Satas, 3rd ed., 1989, p. 609-619. Preferably, the hydrocarbon resin is chosen from low molecular weight polymers which can be classified, according to the type of monomer they comprise, into: - indene hydrocarbon resins, preferably such as the resins resulting from the polymerization in majority proportion of monomer indene and in a minor proportion of monomer selected from styrene, methylindene, methylstyrene and mixtures thereof. These resins may optionally be hydrogenated. These resins may have a molecular weight ranging from 290 to 1150 g / mol; As examples of indene resins, mention may be made of those sold under the reference ESCOREZ 7105 by Exxon Chem., NEVCHEM 100 and NEVEX 100 by Neville Chem., NORSOLENE S105 by Sartomer, PICCO 6100 by Hercules and RESINALL. by the company Resinall Corp., or the hydrogenated indene / methylstyrene / styrene copolymers sold under the name "REGALITE" by the company Eastman Chemical, in particular REGALITE R 1100, REGALITE R 1090, REGALITE R-7100, REGALITE R1010 HYDROCARBON RESIN, REGALITE R1125 HYDROCARBON RESIN; aliphatic pentanediene resins such as those resulting from the polymerization predominantly of 1,3-pentanediene (trans or cis piperylene) monomers and of a minor monomer chosen from isoprene, butene, 2-methyl-2-butene, pentene, 1,4-pentanediene and mixtures thereof. These resins may have a molecular weight ranging from 1000 to 2500 g / mol; Such resins of 1,3-pentanediene are sold, for example, under the references PICCOTAC 95 by the company Eastman Chemical, ESCOREZ 1304 by the company Exxon Chemicals, NEVTAC 100 by the company Neville Chem. or VVINGTACK 95 by the company Goodyear; mixed pentanediene and indene resins, which result from the polymerization of a mixture of pentanediene and indene monomers such as those described above, for example the resins marketed under the reference ESCOREZ 2101 by the Exxon Chemicals., 37 NEVPENE 9500 by Neville Chem., HERCOTAC 1148 by Hercules., NORSOLENE A 100 by Sartomer, VVINGTACK 86, VVINGTACK EXTRA and VVINGTACK PLUS by Goodyear, the diene dimer resins of cyclopentanediene such as those resulting from the polymerization of the first monomer chosen from indene and styrene, and from the second monomer chosen from cyclopentanediene dimers such as dicyclopentanediene, methyldicyclopentanediene, the other dimers of pentanediene, and mixtures thereof. These resins generally have a molecular weight ranging from 500 to 800 g / mol, such as for example those sold under the reference BETAPRENE BR 100 by Arizona Chemical Co., NEVILLE LX-685-125 and NEVILLE LX-1000 by the company Neville Chem., PICCODIENE 2215 by Hercules, PETROREZ 200 by Lawter or RESINALL 760 by Resinall Corp. diene resins of isoprene dimers such as terpene resins derived from the polymerization of at least one monomer selected from i-pinene, i-pinene, limonene, and mixtures thereof. These resins may have a molecular weight ranging from 300 to 2000 g / mol. Such resins are sold for example under the name PICCOLYTE A115 and S125 by the company Hercules, ZONAREZ 7100 or ZONATAC 105 LITE by the company ARIZONA Chem. Mention may also be made of certain modified resins such as hydrogenated resins, such as those sold under the name EASTOTAC C6-C20 POLYOLEFINE by the company Eastman Chemical Co., under the reference ESCOREZ 5300 by the company Exxon Chemicals, or the NEVILLAC HARD or NEVROZ resins. proposed by Neville Chem., PICCOFYN A-100, PICCOTEX 100 or PICCOVAR AP25 resins offered by Hercules or SP-553 resin proposed by Schenectady Chemical Co. Preferably, the composition comprises at least one compound chosen from hydrocarbon resins as described above, in particular indene hydrocarbon resins, aliphatic pentadiene resins or their mixtures. According to a preferred embodiment, the hydrocarbon resin is chosen from indene hydrocarbon resins. According to a preferred embodiment, the resin is chosen from hydrogenated indene / methylstyrene / styrene copolymers. In particular, the hydrogenated indene / methylstyrene / styrene copolymers, such as those sold under the name "REGALITE" 38 by the company Eastman Chemical, such as REGALITE R 1100, REGALITE R 1090, REGALITE R-7100, REGALITE R1010, HYDROCARBON can be used. RESIN, REGALITY R1125 HYDROCARBON RESIN. If the composition comprises at least one hydrocarbon resin, the content of this resin is less than or equal to 25% by weight, preferably ranging from 5 to 20% by weight, relative to the weight of the composition. Optional Additives The composition may comprise at least one optional ingredient chosen, for example, from film-forming agents different from the polymer particles described previously; antioxidants; conservatives ; the perfumes ; the aromas ; neutralizers; emollients; organic thickeners; coalescing agents; moisturizers; vitamins, and mixtures thereof.

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

The compositions according to the invention are therefore intended for the care and / or the makeup of keratin materials, in particular the lips, as well as keratinous fibers such as eyelashes, eyebrows. They advantageously contain a physiologically acceptable medium, ie a medium compatible with the treated keratin materials.

The compositions according to the invention may be in fluid or solid form. Preferably, the compositions are in fluid form. Fluid means compositions whose viscosity can be measured at 25 ° C and atmospheric pressure (1.013, 105 Pa). The compositions according to the invention may also be in anhydrous form, oil-in-water or water-in-oil emulsions. If the compositions comprise water, the content thereof does not advantageously exceed 15% by weight, more particularly does not exceed 10% by weight relative to the weight of the composition. Preferably, if it is present, the water content does not exceed 5% by weight, relative to the weight of the composition, advantageously does not exceed 2% by weight, relative to the weight of the composition. According to a preferred embodiment of the invention, the compositions are anhydrous. By "anhydrous" is meant that water is not deliberately added in the compositions but may be present in trace amounts in the various compounds used in the compositions.

Advantageously, the composition according to the invention is a makeup composition, in particular a lipstick, in solid form (stick, paddle) or in a fluid form (gloss). Preferably, the hydrocarbon oil of the composition is chosen from volatile oils, more particularly apolar oils, and preferably isododecane.

Advantageously, if the composition comprises a second oil, the latter is chosen from hydrocarbon oils, preferably apolar, comprising from 8 to 16 carbon atoms. Even more preferentially, it is chosen from volatile oils, and advantageously isododecane. In addition, the composition according to the invention advantageously comprises dyestuffs. Reference can be made to the description with respect to the nature and content of these compounds. According to a variant of the invention, the composition also comprises at least one wax.

The invention is illustrated in more detail in the following examples. All percentages of reagents described in the examples are percentages by weight.

Synthesis Examples Example 1 In a first step, 1300 g of isododecane, 337 g of isobornyl acrylate, 28 g of methyl acrylate and 3.64 g of tert-butylperoxy-2-ethylhexanoate (1300 g) were introduced into a reactor ( Trigonox 21S from Akzo). The mass ratio Isobornyl Acrylate / Methyl Acrylate is 92/8. The mixture was heated to 90 ° C under argon with stirring.

After 2 hours of reaction, 1430 g of isododecane were added to the reactor bottom, and the mixture was heated to 90 ° C. In a second step, a mixture of 1376 g of methyl acrylate, 1376 g of isododecane and 13.75 g of Trigonox 21S was introduced over 2 hours 30 minutes and allowed to react for 7 hours. 3.3 liters of isododecane were then added and then a portion of the isododecane was evaporated to obtain a solids content of 50% by weight.

A dispersion of methyl acrylate particles stabilized with a random copolymer stabilizer containing 92% isobornyl acrylate and 8% methyl acrylate was obtained in isododecane. The oily dispersion contains in total (stabilizer + particles) 80% of methyl acrylate and 20% of isobornyl acrylate.

The polymer particles of the dispersion have a number average size of about 160 nm. The dispersion is stable after storage for 7 days at room temperature (25 ° C). EXAMPLE 2 A polymer dispersion was prepared in isododecane, according to the method of preparation of Example 1, using: Step 1: 275.5 g of isobornyl acrylate, 11.6 g of acrylate methyl, 11.6 g of ethyl acrylate, 2.99 g of Trigonox 21, 750 g of isododecane; then addition after reaction of 750 g of isododecane Step 2: 539.5 g of methyl acrylate, 539.5 g of ethyl acrylate, 10.8 g of Trigonox 21S, 1079 g of isododecane. After reaction, addition of 2 liters of isododecane and evaporation to obtain a solids content of 35% by weight. An isododecane dispersion of methyl acrylate / ethyl acrylate (50/50) copolymer particles stabilized with a random copolymer stabilizer wasobornyl acrylate / methyl acrylate / ethyl acrylate (92/4) was obtained. / 4). The oily dispersion contains in total (stabilizer + particles) 40% of methyl acrylate, 40% of ethyl acrylate and 20% of isobornyl acrylate. The dispersion is stable after storage for 7 days at room temperature (25 ° C). Example 3 A polymer dispersion in isododecane was prepared according to the method of preparation of Example 1, using: Step 1: 315.2 g of isobornyl acrylate, 12.5 g of acrylate methyl, 12.5 g of ethyl acrylate, 3.4 g of Trigonox 21, 540 g of isododecane, 360 g of ethyl acetate; then addition after reaction of 540 g of isododecane and 360 g of ethyl acetate. Step 2: 303 g of methyl acrylate, 776 g of ethyl acrylate, 157 g of acrylic acid, 11 g of Trigonox 21S, 741.6 g of isododecane and 494.4 g of ethyl acetate. ethyl. After reaction, addition of 3 liters of a mixture of isododecane / ethyl acetate (60/40 w / w) and total evaporation of the ethyl acetate and partial of the isododecane to obtain a solids content of 44% by weight. weight. An isododecane dispersion of methyl acrylate / ethyl acrylate / acrylic acid (24.5 / 62.8 / 12.7) copolymer particles stabilized with a stabilizing random copolymer of isobornyl acrylate / acrylate acrylate was obtained. methyl / ethyl acrylate (92/4/4). The oily dispersion contains in total (stabilizer + particles) 10% of acrylic acid, 20% of methyl acrylate, 50% of ethyl acrylate and 20% of isobornyl acrylate. The dispersion is stable after storage for 7 days at room temperature (25 ° C).

EXAMPLE 4 A polymer dispersion in isododecane was prepared according to the method of preparation of Example 1 using: Step 1: 315.2 g isobornyl acrylate, 12.5 g acrylate methyl, 12.5 g of ethyl acrylate, 3.4 g of Trigonox 21, 540 g of isododecane, 360 g of ethyl acetate; then addition after reaction of 540 g of isododecane and 360 g of ethyl acetate. Step 2: 145 g of methyl acrylate, 934 g of ethyl acrylate, 157 g of acrylic acid, 12.36 g of Trigonox 21S, 741.6 g of isododecane and 494.4 g of acetate ethyl. After reaction, addition of 3 liters of a mixture of isododecane / ethyl acetate (60/40 w / w) and total evaporation of the ethyl acetate and partial of the isododecane to obtain a solids content of 44% by weight. weight. An isododecane dispersion of methyl acrylate / ethyl acrylate / acrylic acid (11.7 / 75.6 / 12.7) copolymer particles stabilized with a stabilized isobornyl acrylate / acrylate random copolymer stabilizer was obtained. of methyl / ethyl acrylate (92/4/4).

The oily dispersion contains in total (stabilizer + particles) 10% of acrylic acid, 10% of methyl acrylate, 60% of ethyl acrylate and 20% of isobornyl acrylate.

The dispersion is stable after storage for 7 days at room temperature (25 ° C). EXAMPLE 5 A polymer dispersion in isododecane was prepared, according to the method of preparation of Example 1, using: Step 1: 48 g of isobornyl acrylate, 2 g of methyl acrylate, 2 g ethyl acrylate, 0.52 g of Trigonox 21, 57.6 g of isododecane, 38.4 g of ethyl acetate; then adding after reaction 540 g of isododecane and 360 g of ethyl acetate. Step 2: 98 g of methyl acrylate, 73 g of ethyl acrylate, 25 g of maleic anhydride, 1.96 g of Trigonox 21S, 50.4 g of isododecane and 33.60 g of acetate ethyl. After reaction, addition of 1 liter of an isododecane / ethyl acetate mixture (60/40 w / w) and total evaporation of the ethyl acetate and partial isododecane to obtain a solids content of 46, 2% by weight. An isododecane dispersion of methyl acrylate / ethyl acrylate / maleic anhydride copolymer particles (50 / 37.2 / 12.8) stabilized with a random copolymer stabilizer isobornyl acrylate / methyl acrylate was obtained. ethyl acrylate (92/4/4). The oily dispersion contains in total (stabilizer + particles) 10% of maleic anhydride, 30% of methyl acrylate, 40% of ethyl acrylate and 20% of isobornyl acrylate. The dispersion is stable after storage for 7 days at room temperature (25 ° C). EXAMPLE 6 A polymer dispersion in isododecane was prepared according to the method of preparation of Example 1 using: Step 1: 48.5 g of isobornyl methacrylate, 4 g of methyl acrylate, 0.52 g of Trigonox 21, 115 g of isododecane; then addition after reaction of 80 g of isododecane. Step 2: 190 g of methyl acrylate, 1.9 g of Trigonox 21S, 190 g of isododecane. After reaction, addition of 1 liter of isododecane and partial evaporation of the isododecane to obtain a solids content of 48% by weight. An isododecane dispersion of methyl acrylate polymer particles stabilized with a statistical copolymer stabilizer of isobornyl methacrylate / methyl acrylate (92/8) was obtained.

The oily dispersion contains in total (stabilizer + particles) 80% of methyl acrylate and 20% of isobornyl methacrylate. The dispersion is stable after storage for 7 days at room temperature (25 ° C). Examples 7 - Lipstick The following compositions are prepared, the ingredients of which are summarized in the table below. The contents are indicated by weight of raw materials unless otherwise stated. Ingredients Invention Copolymer (methyl acrylate) -co- (ethyl acrylate) -co- 64.7 (acrylic acid) -co- (isobornyl acrylate) in isododecane (according to Example 4) Hydrogenated styrene copolymer / isoprene (Kraton® G-1701 E from Kraton Polymers) 2.9 030-45 alkyldimethylsilyl polypropylsilsesquioxane (DOW 0.6 CORNING SVV-8005 030 WAX RESIN from Dow Corning) Pigment (Red 7) 1 Dimethyl siloxane, with 10-carboxydecyl termination reaction products with hexamethylenediamine (Dow Corning (R) 2-8179 Dow Corning Gellant) 5.62 Isododecane qs Protocol for the preparation of said compositions The pigments are ground in a portion of the isododecane three times in a three-cylinder manner. to obtain a viscous and homogeneous paste.

The wax is presolubilized in a part of the hot isododecane so as to obtain a perfectly smooth and homogeneous mixture. Kraton is presolubilized in part of the isododecane. In a skillet, the dispersion of polymer particles according to Example 4 is added with stirring to the presolubilized wax, then the silicone polyamide, the presolubilized Kraton. It is completed with the residual isododecane content and the mixture is heated with stirring until a homogeneous mixture is obtained. Finally, the pigment paste is introduced. If necessary, isododecane is added to compensate for evaporation.

Evaluation of the Composition: Oil Resistance Test: On an artificial keratinous material support, the composition is applied (thickness of the wet film 25 μm). The sample is allowed to dry for 24 hours at 35 ° C. After the drying step a drop of olive oil is placed on the composition film and left for ten minutes. The oil is then wiped off five times using a cotton pad.

The integrity of the film after cotton passage is evaluated to evaluate the oil resistance of the composition, on a scale of 1 to 3, (1: excellent strength, 2: intermediate strength, and 3: poor strength) Transfer test: On a carrier of artificial keratin material, the composition is applied (thickness of the wet film 25 μm). The sample is allowed to dry for 24 hours at 35 ° C. After the drying step a piece of tape is applied to the composition film and removed at a 180 ° angle.

The integrity of the film after removal of the adhesive tape is evaluated on a scale of 1 to 3 (1: intact film, 2: intermediate tearing, and 3: total pulling).

Results: The composition according to the invention is stable and easily applied. It leaves a non sticky deposit, comfortable (no impression of tightness or dryness), having a very good resistance to oil and is without transfer. 46

Claims (18)

REVENDICATIONS1. A composition comprising particles of at least one stabilized polymer surfaced with a polymer stabilizing agent of the particles being a C1-C4 alkyl (meth) acrylate polymer; the stabilizing agent being a polymer of isobornyl (meth) acrylate selected from isobornyl (meth) acrylate homopolymer and random copolymers of isobornyl (meth) acrylate and alkyl (meth) acrylate 01-C4 present in a weight ratio of isobornyl (meth) acrylate / C 1 -C 4 alkyl (meth) acrylate, at least one hydrocarbon oil, at least one amorphous hydrocarbon block copolymer obtained by polymerization of d at least one unsaturated hydrocarbon-type monomer comprising 2 to 5 carbon atoms and having one or two ethylenic unsaturations, and at least one silicone compound selected from silicone elastomers carried in a second oil or silicone polyamides, or mixtures thereof . 15 2. Composition according to claim 1, characterized in that the polymer of the particles is a polymer of methyl acrylate and / or ethyl acrylate. 20 3. Composer according to one of the preceding claims, characterized in that the polymer of the particles comprises an ethylenically unsaturated acidic monomer or their anhydride, preferably selected from (meth) acrylic acid, maleic acid and anhydride maleic. 25 4. Composition according to one of the preceding claims, characterized in that the polymer of the particles comprises from 80 to 100% by weight of (C 1 -C 4) alkyl (meth) acrylate and from 0 to 20% by weight. weight of ethylenically unsaturated acidic monomer, based on the total weight of the polymer. 30 5. Composition according to one of the preceding claims, characterized in that the polymer of the particles is chosen from: homopolymers of methyl acrylate, homepolymers of ethyl acrylate, methyl acrylate / ethyl acrylate copolymers, and ethylene acrylate acrylate / acrylic acid copolymers methyl acrylate / ethyl acrylate / maleic anhydride copolymers methyl acrylate / acrylic acid copolymers ethyl acrylate / acrylic acid copolymers methyl acrylate / maleic anhydride copolymers ethyl acrylate / maleic anhydride copolymers. 6. Composition according to one of the preceding claims, characterized in that the stabilizing agent is a random copolymer of isobornyl (meth) acrylate and (C 1 -C 4) alkyl (meth) acrylate present in a weight ratio ( isobornyl meth) acrylate / C1-C4 alkyl (meth) acrylate greater than or equal to 5. 7. Composition according to one of the preceding claims, characterized in that the stabilizing agent is chosen from: homopolymers of isobornyl acrylate random copolymers of isobornyl acrylate / methyl acrylate random copolymers of isobornyl acrylate / methyl acrylate / ethyl acrylate random copolymers of isobornyl methacrylate / methyl acrylate. 8. Composition according to one of the preceding claims, characterized in that the hydrocarbon oil is chosen from apolar hydrocarbon oils, in particular having from 8 to 16 carbon atoms, and preferably isododecane. 9. Composition according to any one of the preceding claims, characterized in that the hydrocarbon oil content varies from 20 to 75% by weight, more particularly from 30 to 75% by weight, preferably from 40 to 60% by weight. , relative to the weight of the composition. 10. Composition according to one of the preceding claims, characterized in that the content of polymer particles stabilized at the surface by a stabilizing agent, expressed as active material, represents from 5 to 55% by weight, more particularly from 5 to 50% by weight. % by weight, preferably 8 to 45% by weight, expressed as the solids content of polymer particles, relative to the weight of composition. 35 11. Composition according to any one of the preceding claims, characterized in that the hydrocarbon block copolymer comprises at least one styrene block and at least one block comprising units selected from butadiene, ethylene, propylene, butylene, isoprene or a mixture thereof. 12. Composition according to the preceding claim, characterized in that the hydrocarbon block copolymer is chosen from diblock copolymers, optionally hydrogenated, of styrene-ethylene / propylene, styrene / butadiene, styrene-ethylene / butylene, styrene-isoprene and the optionally hydrogenated triblock copolymers of styrene-ethylene-butadiene-styrene, styrene-butylene-styrene-isoprene-styrene-styrene and styrene-butadiene-styrene, and mixtures thereof, and preferably chosen from diblock copolymers; , optionally hydrogenated, styrene-ethylene / propylene, styrene-ethylene / butylene and triblock copolymers, optionally hydrogenated, styrene-butylene / ethylene-styrene, and mixtures thereof. 13. Composition according to any one of the preceding claims, characterized in that the content of hydrocarbon block copolymer represents from 2.5 to 15% by weight, relative to the total weight of the composition, preferably from 2.5 % to 8% by weight. 14. Composition according to any one of the preceding claims, characterized in that the silicone compound is chosen from emulsifying silicone elastomers, more particularly comprising at least one hydrophilic chain, and in particular comprising at least one polyoxyalkylene, polyglyceryl unit. 15. Composition according to any one of the preceding claims, characterized in that the silicone compound is chosen from silicone polyamides, comprising at least one unit corresponding to the general formula III: R 4 R 6 Si in which R 4, R 6 and R 6 and R7 independently represent a linear or branched C1-C8 alkyl group, preferably a CH3, C2H5, n-C3H7 or isopropyl group, a polyorganosiloxane chain or a phenyl group optionally substituted with one to three methyl or ethyl groups, and m ranges from 1 to 700, in particular from 15 to 500 and in particular from 50 to 200, and is especially from 1 to 500, preferably from 1 to 100 and more preferably from 4 to 25; X is preferably a linear or branched alkylene chain having from 1 to 30 carbon atoms, Y is preferably a linear or branched alkylene chain or which may comprise rings and / or unsaturations, having from 1 to 40 carbon atoms, Or where RB represents a polyorganosiloxane chain, and T represents a group of formula R13 (CH2), (CH2) 1) OR (CH2) a (CH2) b (CH2), (CH2). which a, b and c are independently integers from 1 to 10, and R 13 is a hydrogen atom or a group such as those defined for R 4, R 5, Re and R 7; the alkylene group representing X or Y may optionally contain in its alkylene part at least one of the following: 1) 1 to 5 amide groups, urea, urethane, or carbamate, 1) a C 6 -C 6 cycloalkyl group, and 2) a phenylene group optionally substituted with 1 to 3 identical or different C 1 -C 3 alkyl groups. the alkylene group may also be substituted by at least one member selected from the group consisting of: a hydroxy group, a C3-C8 cycloalkyl group, one to three C1-C40 alkyl groups, a phenyl group optionally substituted with a three C 1 -C 3 alkyl groups, a C 1 -C 3 hydroxyalkyl group, and a C 1 -C 6 aminoalkyl group. 16. Composition according to any one of the preceding claims, characterized in that it comprises a content of silicone compound, expressed in active material, ranging from 0.5 to 20% by weight, preferably from 1 to 15% by weight. , in relation to the weight of the arrangement. 17. Composition according to any one of the preceding claims, characterized in that the polymer particles stabilized at the surface by a stabilizing agent are incorporated into the composition in the form of a dispersion in at least one hydrocarbon oil. 18. A process for makeup and / or care of keratinous materials comprising applying the composition according to any one of the preceding claims.