FR2967058A1 - COSMETIC COMPOSITION AND PROCESS FOR RECOVERING KERATIN FIBERS - Google Patents

Abstract

The present invention relates to a cosmetic composition for coating keratinous fibers, such as eyelashes or eyebrows, comprising: a polymer mainly derived from the (co-) (homo-) random polymerization of (poly) cyclic monomers having a transition temperature vitreous (Tg) greater than 80 ° C and a weight average molecular weight greater than 20000 g / mol, said (poly) cyclic monomers comprising a non-aromatic (poly) cycloalkene substituted or unsubstituted, - an organic volatile solvent in a content greater than or equal to 20% by weight relative to the total weight of the composition. The present invention also relates to a process for bending keratinous fibers.

Description

The present invention relates to a cosmetic composition for coating keratinous fibers, and in particular eyelashes or eyebrows. In particular, said cosmetic composition is a make-up and / or skincare composition for keratinous fibers. The present invention also relates to a process for coating keratin fibers with a view to bending them.

The composition used may in particular be in the form of a product for eyelashes such as a mascara, or a product for the eyebrows. More preferably, the invention relates to a mascara. By "mascara" is meant a composition intended to be applied to the eyelashes: it may be an eyelash makeup composition, an eyelash makeup base (also called a base coat), a composition to be applied to an eyelash. mascara, also called top-coat, or else a composition for cosmetic treatment of eyelashes. Mascara is especially intended for human eyelashes, but also false eyelashes.

The coating compositions of the keratinous fibers may consist of at least one wax or a mixture of waxes dispersed in an aqueous liquid phase or an organic solvent. They generally have a pasty texture and are packaged in a container closed by an applicator of said composition. This applicator may be in particular in the form of a brush or a comb configured to take the product contained in the container and be placed in contact with keratin fibers to make up, such as eyelashes or eyebrows.

The compositions for coating keratin fibers may comprise an aqueous liquid phase and a fatty phase dispersed in said aqueous phase by means of an emulsifying system. The fatty phase may comprise a waxy phase. The emulsifier system may comprise a surfactant.

The application WO2010 / 014328 describes compositions comprising particular polymers formulated in emulsion and having contractile properties, allowing the composition once applied on the eyelash fringe to bend them. However, a disadvantage of such compositions is their sensitivity to water. In particular, the makeup film obtained after the application of these compositions can disintegrate throughout the day, revealing grains settling around the eyes and forming unsightly traces.

The application US2009 / 0053270 discloses a particular polymer (A) used in the aqueous phase associating a monomer (a) of methacrylic acid or a salt of methacrylic acid with a monomer (b) chosen from several compounds and in particular from isobornyl meth) acrylate.

Application US2009 / 0047308 discloses copolymers combining at least two monomers containing a particular acrylate or methacrylate group, one having a glass transition temperature (Tg) of less than or equal to 20 ° C., the other having a Tg greater than or equal to 20 ° C.

The application US20100080763 still discloses particular flexible copolymers of low Tg and formulated in the aqueous route.

A disadvantage here again related to such compositions of the prior art is both their sensitivity to water and their low stiffness

An object of the present invention resides in the development of a composition for coating keratinous fibers and a process for coating keratinous fibers, which improves the curling of the eyelashes.

Another object of the present invention is to provide a composition for coating keratinous fibers which is resistant to water and especially to ambient humidity, sweat, tears and / or sebum.

Unexpectedly, the inventor has discovered that the use of particular polymers formulated in an organic volatile oil makes it possible to obtain a composition which, when applied to the eyelashes, gives them a very good curvature. The inventor gives as explanation to this phenomenon that the formulation of a polymer qualifiable as rigid, and having both a high glass transition temperature (Tg) and a high molecular weight, in a large quantity of volatile organic solvent allows a first time to sufficiently plasticize this polymer to allow its deposit on the eyelashes; then, in a second step, the evaporation of the organic volatile solvent from the composition causes a gradual hardening of the film which will become rigid before total evaporation of the solvent. This property can not be reached if the glass transition temperature (Tg) and molecular weight criteria are not respected. This ability to become rigid despite the residual presence of solvent will, during the evaporation of the remaining solvent, create a phenomenon of spontaneous folding of the eyelash. A fortiori, the fact that this composition is essentially hydrophobic nature gives the latter good resistance to water and all aqueous or water-soluble compounds that can negatively influence the holding of the deposit (sweat, tears, humidity of air, etc ...).

To this end, the subject of the present invention is a cosmetic composition for coating keratinous fibers and in particular eyelashes, comprising: a polymer mainly derived from the (co-) (homo-) random polymerization of (poly) cyclic monomers having a glass transition temperature (Tg) greater than 80 ° C and a weight average molecular weight greater than 20000 g / mol, said (poly) cyclic monomers comprising a non-aromatic (poly) cycloalkene, substituted or unsubstituted, - an organic volatile solvent in a content greater than or equal to 20% by weight relative to the total weight of the composition. Within the meaning of the present invention, and unless a different indication is given, is meant by: - "polymer", the succession of at least three monomers; - "(co-) (homo-) random polymerization", statistical co-polymerization or homopolymerization; "Co-polymerization", the formation of a polymer derived from at least two types of monomers; "Statistical co-polymerization", the formation of a polymer by two types of monomers randomly arranged so that a random polymer obtained in particular by conventional radical polymerization of two monomers is characterized by the distribution of the monomers which is not identical on all strings, and by the length of said strings which is not identical for all strings; "Homopolymerization", the formation of a polymer derived from a single type of monomer; - "(poly) cyclic" monomers, monocyclic or polycyclic monomers, in particular dicyclic monomers; "(Poly) cycloalkene" is understood to mean a monocyclic or polycyclic group, in particular dicyclic, hydrocarbon-based, condensed or otherwise, unsaturated, but not aromatic, comprising from 5 to 22 carbon atoms, better still from 7 to 20 carbon atoms, where appropriate including the carbon atom (s) constituting the bridging, substituted or unsubstituted; "Substituted with one or more alkyl groups" is understood to mean that the (poly) cycloalkene has one or more carbon atoms which carry (ent) a hydrocarbon-based group, chosen from the optionally substituted C, -C, O alkyl and C2-CIO optionally substituted alkenyl; The "alkyl" radicals are hydrocarbon radicals, saturated, linear or branched, generally C1-C4, such as methyl, ethyl, propyl and butyl; The "alkenyl" radicals are linear or branched, unsaturated hydrocarbon radicals comprising one or two conjugated or unsubstituted 7L double bonds; the alkenyl group, generally in C 2 -C 5, preferably comprises a single double bond such as ethylenyl -CH 2 = CH 2; -; - "optionally substituted", the C1-C10 alkyl or C2-C, o alkenyl may be substituted by a (hetero) cycloalkyl group, preferably non-aromatic; - "bridged", a (poly) cycloalkene comprising two non-contiguous carbon atoms forming between them a bridge, said bridge being: - preferably an alkylene chain of formula - (CRR ') n- with n included inclusive between 1 and 3 preferably 1, and R and R 'are both independently H or C 1 -C 6 alkyl, and preferably both H or methyl, or an alkenylene chain of formula -RR = CR'-, R and R 'being independently of each other an H atom or a C 1 -C 6 alkyl, preferably R and R' being both an atom of H, - "has a glass transition greater than or equal to 80 ° C", in that the homopolymer or at least 50% of the constituent monomers of the random copolymer has a glass transition temperature greater than or equal to 80 ° C.

Said monomers are advantageously sterically hindered. This (poly) cycloalkene is advantageously bridged. According to a particular embodiment, the glass transition temperature (Tg) is greater than or equal to 100 ° C.

According to the invention, said monomers comprise at least one ethylenic unsaturation, for example one or two. These may be chosen from norbornene, substituted or unsubstituted, norbornadiene, substituted or unsubstituted, and (poly) cycloalkadiene, substituted or unsubstituted, and mixtures thereof. In particular, these monomers according to an advantageous embodiment are chosen from: - a norbornene, - a norbornene substituted with one or more alkyl group (s), preferably methyl or ethyl, and in particular 5-methyl-2 -norbornene, 5-ethyl-2-norbornene, 5,6-dimethyl-2-norbornene, 5,6-dimethyl-2-norbornene, 5,5,6-trimethyl-2-norbornene; a norbornene substituted with a cycloalkyl group, and in particular 5-cyclopentyl-2-norbornene; a norbornene substituted with one or more alkenyl group (s), and in particular 5-ethylidene-2-norbornene and 5-vinyl-2-norbornene; a tetracyclododecene; a tetracyclododecene substituted with one or more alkyl group (s), preferably methyl or ethyl; an unsubstituted norbornadiene, an unsubstituted (poly) cycloalkadiene such as cyclopentadiene, dicyclopentadiene, and cyclohexadiene; a (poly) cyclopentadiene substituted with one or more hydrocarbon group (s), in particular alkyl, such methyldicyclopentadiene and pentamethylcyclopentadiene. The weight average molecular weight (Mw) of the polymer is between 100,000 g / mol and 300,000 g / mol. According to a particular embodiment, said polymer may be devoid of hydrophilic monomer.

This polymer is preferably soluble in said volatile organic solvent. This polymer advantageously has film-forming properties. According to a particular embodiment, this polymer is amorphous. According to a preferred embodiment, the polymer is a copolymer. Preferably, the polymer is present in a content greater than or equal to 20% by weight relative to the total weight of the composition.

Advantageously, said organic volatile solvent is hydrocarbon having from 7 to 16 carbon atoms. According to a preferred embodiment, said composition has a water content of less than or equal to 10% by weight relative to the total weight of the composition, better still 7%, in particular 5% and preferably 2% by weight, even is anhydrous. According to a preferred embodiment, said composition comprises at least one coloring agent. This coloring agent may be a pigment. This composition may be a make-up composition, a make-up base, a so-called "top-coat" composition to be applied to a make-up, or a cosmetic treatment, care or keratinous fiber composition. Preferably, the composition according to the invention is a mascara. The subject of the present invention is also, according to a second aspect, a kit or kit for coating keratinous fibers comprising: at least one cosmetic composition for coating keratinous fibers as previously described, and at least one applicator of the composition, said applicator comprising means, optionally in relief, configured to engage with said keratinous fibers, such as eyelashes or eyebrows, to smooth and / or separate eyelashes or eyebrows. Such reliefs may include teeth, bristles or other. Said assembly, and in particular said applicator, may optionally be equipped with means for vibrating and / or heating said composition.

The subject of the present invention is also, according to a third aspect, an assembly or kit for conditioning and applying a composition for coating keratin fibers, comprising: a device for conditioning said cosmetic composition for coating keratin fibers, such as previously described, - an applicator of said composition.

Said applicator may be secured to a gripping member forming a cover for said conditioning device. In other words said applicator can be mounted in a removable position on said device between a closed position and a position released from a dispensing opening of the packaging device of said composition.

The subject of the present invention is also, according to a fourth aspect, a process for coating keratin fibers, and in particular eyelash makeup, comprising a step of applying a cosmetic composition for coating keratinous fibers as previously described.

The subject of the present invention is also, according to a fifth aspect, a process for bending keratinous fibers comprising a step of applying a cosmetic composition for coating keratin fibers as previously described.

Other characteristics, properties and advantages of the present invention will emerge more clearly on reading the description and examples which follow.

Polymer The compositions in accordance with the invention comprise at least one polymer derived from the (co-) (homo-) random polymerization of (poly) cyclic monomers having a glass transition temperature (Tg) greater than or equal to 80 ° C. and a weight average molecular weight (Mw) of greater than 20000 g / mol, said (poly) cyclic monomers comprising a non-aromatic (poly) cycloalkene, substituted or unsubstituted. With regard to the glass transition temperature of the (poly) cyclic monomers according to the invention, when the polymer is a homopolymer, the monomeric unit constituting it has a Tg greater than or equal to 80 ° C. When the polymer according to the invention is a copolymer, at least 50% by weight, preferably at least 60% by weight, preferably less than 70% by weight, of the constituent monomers of the copolymer have a Tg greater than or equal to 80 ° C. A monomer of Tg greater than or equal to 80 ° C is understood to mean a monomer whose homopolymer would lead to a Tg greater than or equal to 80 ° C. The polymer obtained is advantageously mainly obtained from this (co-) (homo-) random polymerization of (poly) cyclic monomers. By this is meant that the polymer according to the invention is obtained at more than 50% by weight, preferably at more than 60% by weight, preferably at more than 70% by weight, by homo-polymerization or random copolymerization of said monocyclic or polycyclic monomers. The polymers may have a linear structure or a non-linear structure such as, for example, a copolymer with a branched, radial, star-shaped structure. Preferably, the polymers according to the invention are chosen from amorphous polymers. By amorphous polymers is meant a polymer having no crystalline form. Preferably, the polymers according to the invention are in solution in said organic volatile solvent. These polymers according to the invention preferably have film-forming properties. In the present application, the term "film-forming polymer" means a polymer capable of forming on its own or in the presence of a film-forming auxiliary agent, a macroscopically continuous and adherent film on the eyelashes, and preferably a cohesive film, and more preferably a film whose cohesion and mechanical properties are such that said film can be isolatable and manipulable in isolation, for example when said film is produced by casting on a non-stick surface such as a Teflon or silicone surface. Preferably, the polymers according to the invention have a glass transition temperature (Tg) greater than or equal to 100 ° C. Advantageously, said polymer has a glass transition temperature (Tg) of between 80 and 160 ° C. The polymers preferably have a low mass polydispersity and preferably a low composition polydispersity. The bulk polydispersity can be illustrated by using the Polydispersity Index (Ip) of the polymer, which is equal to the ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn). . Low mass dispersity reflects approximately identical chain lengths, which is the case for the polymers according to the present invention. Preferably, the polymer according to the invention has a mass polydispersity index of less than or equal to 3, preferably between 1.1 and 2.5, in particular between 1.15 and 2.3, or even between 1.2 and 2.0, or 1.9 or even 1.8. The polymers have a weight average molecular weight (Mw) of greater than 20,000 g / mol. Advantageously, this weight average molecular weight is between 30,000 and 500,000 g / mol, more preferably between 40,000 and 300,000 g / mol, more preferably between 80,000 and 200,000 g / mol.

Preferably, the polymers have a number average molecular weight (Mn) greater than 10,000 g / mol. Advantageously, this number-average molecular mass is between 30,000 and 500,000 g / mol, more preferably between 40,000 and 300,000 g / mol.

The weight average molecular weights (Mw) and number (Mn) are determined by gel permeation liquid chromatography (GPC), eluent THF, calibration curve established with linear polystyrene standards, refractometric detector. The polymers according to the invention also preferably have a low dispersity in the composition. This means that all the polymer chains have a similar composition (i.e., a sequence of monomers) and are therefore homogeneous in composition. In order to show that all the polymer chains have an analogous composition, it will be advantageous to use liquid adsorption chromatography (or LAC) which makes it possible to separate the polymer chains, not according to their molecular weight but according to their polarity. The latter reflects the chemical composition of the polymers constituting the material, the monomers being known. Reference can be made to the publication Macromolecules (2001), 34, 2667 which describes the LAC technique. In particular, the composition polydispersity can be defined from the adsorption chromatography (LAC) curve (curve representing the proportion of polymers as a function of the elution volume): if "v''2 min" is the minimum value of the elution volume at mid-height of the curve, and "v''2 max" the maximum value of the elution volume at mid-height of the curve, the polydispersity in composition is generally considered low if the difference (v''2 max - v''2 min) is less than or equal to 3.5, in particular between 1 and 2.8 and better still between 1.2 and 2.5. Moreover, the curve LAC can be defined by a Gaussian curve of formula: (x-xo) 2 A -2 z Y = xe w- + Y in which: xo is the value of x (elution volume) at the center of the peak - w is equal to 2 times the standard deviation of the Gaussian distribution (ie 26) or is approximately 0.849 times the width of the peak at half height - A represents the area under the peak - yo is the value of y corresponding to xo. The dispersity in composition of the polymers according to the invention can also be defined by the value of w as defined above. Preferably, said value w is between 1 and 3, especially between 1.1 and 2.3, and more preferably between 1.1 and 2.0. Advantageously, the polymers do not comprise hydrophilic or polar monomers. By "polar" monomers, within the meaning of the present invention, we mean monomers whose solubility parameter at 25 ° C. Sa is different from 0 (J / cm 3) 'Y'. In particular, the term "polar" monomers means a compound whose chemical structure is formed essentially or even consisting of carbon and hydrogen atoms, and comprising at least one highly electronegative heteroatom such as an oxygen atom. , nitrogen, or phosphorus. The definition and calculation of the solubility parameters in the HANSEN three-dimensional solubility space are described in the article by C. M. Hansen: "The three dimensional solubility parameters" J. Paint Technol. 39, 105 (1967). According to this Hansen space: - 8p characterizes the LONDON dispersion forces resulting from the formation of dipoles induced during molecular shocks; - 6p characterizes the DEBYE interaction forces between permanent dipoles as well as the KEESOM interaction forces between induced dipoles and permanent dipoles; bh characterizes the specific interaction forces (hydrogen bond, acid / base, donor / acceptor type, etc.); - Sa is determined by the equation: Sa = (61,2 + Sh2) 'Y' The parameters 6p, 6h, 8p and Sa are expressed in (J / cm3) 'Y'. Preferably, the polymers obtained comprise less than 10%, preferably less than 5%, and preferably are free of acrylic acid, methacrylic acid, and / or their salts, relative to the total weight of polymers. According to the invention, the (poly) cycloalkene is unsaturated, but not aromatic, comprising for example one or two unsaturations. In particular it may be substituted by one or more hydrocarbon groups, for example alkyl or alkenyl. The alkyl group (s) preferably comprises from 1 to 10 carbon atoms. Preferably, this alkyl group is methyl or ethyl. The alkenyl group (s) preferably comprises from 2 to 10 carbon atoms. Preferably, this alkenyl group is an ethylene. The (poly) cycloalkene is advantageously bridged. Said (poly) cycloalkene is preferably selected from norbornene and (poly) cyclopentadiene, and mixtures thereof. According to a preferred embodiment, the polymers of the invention comprise at least one monomer chosen from or a mixture of these two monomers. The polymers according to the invention may for example be derived from the homopolymerization or random copolymerization of monomers: - norbornene substituted or not by one or more alkyl groups; The following monomers are particularly preferred: norbornene, 5-methyl-2-norbornene, 5-ethyl-2-norbornene, 5,6-dimethyl-2-norbornene, and 5.5 , 6-trimethyl-2-norbornene 'and copolymers derived from the mixture of at least two of these monomers, for example 5-methyl-2-norbornene and 5,6-dimethyl-2-norbornene; norbornene substituted with a cycloalkyl group; Particularly preferred is 5-cyclopentyl-2-norbornene monomer; norbornene substituted with one or more alkenyl groups; The following monomers are particularly preferred: 5-ethylidene-2-norbornene, and 5-vinyl-2-norbornene, as well as the copolymers resulting from the mixture of these monomers; - tetracyclododecene substituted or not with one or more alkyl group (s), preferably methyl or ethyl; The following monomers are particularly preferred: tetracyclododecene, ethyl tetracyclododecene, norbornadiene substituted with one or more alkyl or alkenyl groups, and preferably unsubstituted; - (poly) cycloalkadiene, substituted or unsubstituted; The following monomers are particularly preferred: cyclopentadiene, dicyclopentadiene, methyldicyclopentadiene, penta-methylcyclopentadiene, and cyclohexadiene; as well as the copolymers resulting from the mixing of these monomers.

The polymer may optionally be partially or even completely hydrogenated, which means that the residual double bonds are partially or even completely hydrogenated.

The polymer according to the invention can be obtained by homopolymerization or ring-opening copolymerization of the metathesis type of at least one (poly) cycloalkene, followed by hydrogenation. Such copolymers are in particular available from ZEON CORPORATION under the references ZEONEX and ZEONOR, in particular the reference ZEONEX 330R.

According to a preferred embodiment, the polymer of the invention is obtained by copolymerization of at least one (poly) cycloalkene and ethylene. (Poly) cycloalkenes are preferably selected from norbornene and tetracyclododecene, preferably norbornene. These copolymers of at least one (poly) cycloalkene and ethylene can be produced by chain copolymerization of (poly) cycloalkene monomers with ethylene. Such copolymers are especially available from TOPAS Advanced Polymers under the references TOPAS 5013, TOPAS 6013, TOPAS 6015, TOPAS 6017.

The polymers according to the invention are preferably present in a content greater than or equal to 20%, better still greater than or equal to 25%, or even 30%, by weight of dry matter relative to the total weight of the composition. They may in particular be present in a content ranging from 26% to 40% by weight, relative to the total weight of the composition, preferably ranging from 28% to 36% by weight.

Oil or organic solvent The compositions in accordance with the invention comprise at least one oil or organic solvent. By "oil" is meant a liquid fatty substance at room temperature and atmospheric pressure. The compositions according to the invention more specifically comprise at least one volatile organic oil. According to a particular embodiment, the composition according to the invention may comprise, in addition to said at least one volatile oil, at least one non-volatile oil.

Volatile oil The composition according to the invention comprises at least one volatile oil. The volatile oil is present at a content strictly greater than 20%. It may in particular be present in a content ranging from 25% to 90% by weight, relative to the total weight of the composition, preferably ranging from 30% to 70% by weight.

By "volatile oil" is meant an oil (or non-aqueous medium) capable of evaporating on contact with the skin, or keratin fiber, in less than one hour, at room temperature and atmospheric pressure. The volatile oil is a volatile cosmetic oil, liquid at room temperature, having an evaporation rate of between 0.01 and 200 mg / cm 2 / min, inclusive. To measure this evaporation rate is introduced into a crystallizer, with a diameter of 7 cm, placed on a scale located in a large chamber of about 0.3 m 3 regulated in temperature, at a temperature of 25 ° C., and in hygrometry, at a relative humidity of 50%, 15 g of oil or oil mixture to be tested. The liquid is allowed to evaporate freely, without stirring, providing ventilation by a fan (PAPSTMOTOREN, reference 8550 N, rotating at 2700 revolutions per minute) arranged in a vertical position above the crystallizer containing said oil or mixture , the blades being directed towards the crystallizer and at a distance of 20cm from the bottom of the crystallizer. The mass of oil remaining in the crystallizer is measured at regular intervals. The evaporation rates are expressed in mg of evaporated oil per unit area (cm2) and per unit of time (minute). This volatile oil is preferably hydrocarbonated. The hydrocarbon-based volatile oil is preferably chosen from hydrocarbon-based oils having from 7 to 16 carbon atoms.

The composition according to the invention may contain one or more branched alkane (s) volatile (s). By "one or more branched alkane (s) volatile (s)" is meant indifferently "one or more volatile branched alkane (s) oil (s)". As hydrocarbon-based volatile oil having from 7 to 16 carbon atoms, mention may be made in particular of branched C 8 -C 16 alkanes such as iso-alkanes (also known as isoparaffins) at C 8 -C 16, isododecane, isodecane and isohexadecane and for example the oils sold under the trade names of Isopars or permetyls, branched C8-C16 esters such as isohexyl neopentanoate, and mixtures thereof. Preferably, the hydrocarbon-based volatile oil having from 8 to 16 carbon atoms is chosen from isododecane, isodecane and isohexadecane, and mixtures thereof, and is especially isododecane. The composition according to the invention may contain one or more volatile linear alkane (s). By "one or more volatile linear alkane (s)" is meant indifferently "one or more volatile linear alkane (s) oil (s)".

A volatile linear alkane suitable for the invention is liquid at ambient temperature (about 25 ° C.) and at atmospheric pressure (760 mmHg). By "volatile linear alkane" suitable for the invention is meant a linear cosmetic alkane, capable of evaporating on contact with the skin in less than one hour, at ambient temperature (25 ° C.) and at atmospheric pressure (760 mm). Hg, that is to say 101 325 Pa), liquid at room temperature, especially having an evaporation rate ranging from 0.01 to 15 mg / cm 2 / min, at room temperature (25 ° C.) and atmospheric pressure. (760 mmHg). Linear alkanes, preferably of plant origin, comprising from 7 to 15 carbon atoms, in particular from 9 to 14 carbon atoms, and more particularly from 11 to 13 carbon atoms. By way of example of a linear alkane which is suitable for the invention, mention may be made of the alkanes described in the patent applications of the company Cognis WO 2007/068371, or WO2008 / 155059 (distinct alkane mixtures and differing from less a carbon). These alkanes are obtained from fatty alcohols, themselves obtained from coconut oil or palm oil. By way of example of a linear alkane suitable for the invention, mention may be made of n-heptane (C7), n-octane (C8), n-nonane (C9), n-decane (C10), n-undecane (C11), ndodecane (C12), n-tridecane (C13), n-tetradecane (C14), pentadecane (C15), and mixtures thereof, and in particular the n-undecane mixture (C11) and n-tridecane (C13) described in Example 1 of the application WO2008 / 155059 of the Cognis Company. Mention may also be made of n-dodecane (C12) and n-tetradecane (C14) sold by Sasol respectively under the references PARAFOL 12-97 and PARAFOL 14-97, as well as their mixtures.

The linear alkane may be used alone or as a mixture of at least two different alkanes and differing from each other by a carbon number of at least 1, and in particular a mixture of at least two linear alkanes containing from 10 to 14 carbon atoms. different carbon atoms and differing from each other by a carbon number of at least 2, and in particular a mixture of linear volatile C1 1 / C13 alkanes or a mixture of linear C12 / C14 alkanes, in particular a mixture of -undecane / n-tridecane (such a mixture can be obtained according to Example 1 or Example 2 of WO 2008/155059).

Alternatively or additionally, the composition produced may comprise at least one volatile silicone oil or solvent compatible with a cosmetic use.

By silicone oil is meant an oil containing at least one silicon atom, and in particular containing Si-O groups. According to one embodiment, said composition comprises less than 10% by weight of non-volatile silicone oil (s), relative to the total weight of the composition, better still less than 5% by weight, or even is free from silicone oil. As silicone volatile oil, mention may be made of cyclic polysiloxanes, linear polysiloxanes and mixtures thereof. Volatile linear polysiloxanes that may be mentioned include hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, tetradecamethylhexasiloxane and hexadecamethylheptasiloxane. Cyclic volatile polysiloxanes that may be mentioned include hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and dodecamethyicyclohexasiloxane.

Non-volatile oil The composition according to the invention may comprise at least one non-volatile oil. By "non-volatile oil n, conversely, is meant an oil remaining on the skin or keratin fiber at room temperature and atmospheric pressure. More specifically, a non-volatile oil has an evaporation rate strictly less than 0.01 mg / cm 2 / min. Said at least one non-volatile oil that is suitable for the present invention may be chosen from hydrocarbon oils and silicone oils. The non-volatile hydrocarbon oils that are suitable for the present invention may in particular be chosen from: hydrocarbon oils of vegetable origin, such as triglycerides consisting of esters of fatty acids and of glycerol, the fatty acids of which may have chain lengths various C4 to C28, the latter being linear or branched, saturated or unsaturated; these oils include wheat germ, sunflower, grape seed, sesame, maize, apricot, castor, shea, avocado, olive, soya, sweet almond, palm, rapeseed, cotton, hazelnut, macadamia, jojoba, alfalfa, poppy, pumpkin, sesame, pumpkin, rapeseed, blackcurrant, evening primrose, millet, barley, quinoa, rye, safflower, bancoulier, passiflora, muscat rose; or the triglycerides of caprylic / capric acids, such as those sold by Stéarineries Dubois or those sold under the names Miglyol 8100, 8120 and 8180 by the company Sasol; synthetic ethers having from 10 to 40 carbon atoms; linear or branched hydrocarbons of mineral or synthetic origin, such as petroleum jelly, polydecenes, hydrogenated polyisobutene such as Parleam, and squalane, and mixtures thereof; synthetic esters such as the oils of formula R 1 COOR 2 in which R 1 represents the residue of a linear or branched fatty acid containing from 1 to 40 carbon atoms and R 2 represents a hydrocarbon chain, especially branched, containing from 1 to 40 carbon atoms with the proviso that R1 + R2 is> 10, such as, for example, purcellin oil (cetostearyl octanoate), isopropyl myristate, isopropyl palmitate, C12-C15 alcohol benzoate, laurate. hexyl, diisopropyl adipate, isononyl isononanoate, 2-ethylhexyl palmitate, isostearate isostearate, octanoates, decanoates or ricinoleates of alcohols or polyalcohols such as propylene glycol dioctanoate ; hydroxylated esters such as isostearyl lactate, diisostearyl malate; 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, 2-undecylpentadecanol; higher fatty acids such as oleic acid, linoleic acid, linolenic acid and mixtures thereof. The nonvolatile silicone oils that are suitable for the present invention may in particular be chosen from: the non-volatile silicone oils that may be used in the composition in accordance with the invention may be non-volatile polydimethylsiloxanes (PDMS), polydimethylsiloxanes containing alkyl groups or alkoxy, during and / or silicone chain end, groups each having 2 to 24 carbon atoms, phenyl silicones such as phenyl trimethicones, phenyl dimethicones, phenyl trimethylsiloxy diphenylsiloxanes, diphenyl dimethicones, diphenyl methyldiphenyl trisiloxanes, 2-phenylethyl trimethylsiloxysilicates.

The content of oil, or organic solvent, non-volatile in the composition may for example range from 0.1 to 20% by weight, in particular from 1 to 5% by weight, relative to the total weight of said composition.

Waxes The composition preferably comprises 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 Whale under the trade reference ISO-JOJOBA-500 , hydrogenated sunflower oil, hydrogenated castor oil, hydrogenated coconut oil and hydrogenated lanolin oil, di- (1,1,1-trimethylolpropane) tetrastearate sold under the name "HEST 2T-4S "by the company HETERENE, di- (trimethylol-1,1,1 propane) tetraprenate sold under the name HEST 2T-4B by the company HETERENE. Mention may also be made of silicone waxes such as alkyl or alkoxydimetone having from 16 to 45 carbon atoms, fluorinated waxes. It is also possible to use the wax obtained by hydrogenation of esterified olive oil with the stearyl alcohol sold under the name "PHYTOWAX Olive 18 L 57" or even the waxes obtained by hydrogenation of castor oil esterified with alcohol. cetyl sold under the name "PHYTOWAX ricin 16L64 and 22L73", by the company SOPHIM. Such waxes are described in application FR-A-2792190. The composition may comprise at least one polar wax. By "polar wax" is meant waxes comprising in their chemical structure, in addition to the carbon and hydrogen atoms, at least one highly electronegative heteroatom, such as O, N or P. Preferably, the wax is chosen from carnauba wax, candellila wax, natural (or bleached) beeswax and synthetic beeswax. As synthetic beeswax, mention may be made of the wax sold under the name Cyclochem 326 A by Evonik Goldschmidt (INCI name: Synthetic Beeswax). The composition may comprise at least one wax having a hardness ranging from 0.05 MPa to 15 MPa, and preferably ranging from 6 MPa to 15 MPa. The hardness is determined by measuring the compression force measured at 20 ° C. using the texturometer sold under the name TA-TX2i by the company RHEO, equipped with a stainless steel cylinder with a diameter of 2 mm. moving at the measuring speed of 0.1 mm / s, and penetrating into the wax at a penetration depth of 0.3 mm. According to one particular embodiment, the compositions in accordance with the invention may comprise at least one so-called sticking wax, that is to say having a tack greater than or equal to 0.7 Ns and a hardness of less than or equal to 3, 5 MPa. The use of a sticky wax may in particular make it possible to obtain a cosmetic composition which is easily applied to the eyelashes, having good grip on the eyelashes and which leads to the formation of a smooth, homogeneous and thickening makeup . The tacky wax used may in particular have a tack ranging from 0.7 Ns to 30 Ns, in particular greater than or equal to 1 Ns, in particular ranging from 1 Ns to 20 Ns, in particular greater than or equal to 2 Ns, in particular ranging from 2 Ns at 10 Ns, and in particular ranging from 2 Ns to 5 Ns The stickiness of the wax is determined by measuring the evolution of the force (compressive force or stretching force) as a function of time, at 20 ° C. using the texturometer sold under the name "TA-TX210 "by the company RHEO, equipped with a mobile in acrylic polymer cone forming an angle of 45 °. The measurement protocol is as follows: The wax is melted at a temperature equal to the melting point of the wax + 10 ° C. The melted wax is poured into a container 25 mm in diameter and 20 mm deep. The wax is recrystallized at room temperature (25 ° C) for 24 hours so that the surface of the wax is flat and smooth, then the wax is kept for at least 1 hour at 20 ° C before measuring. tights. The mobile of the texturometer is moved at a speed of 0.5 mm / s, then penetrates into the wax to a depth of penetration of 2 mm. When the mobile penetrated the wax to the depth of 2 mm, the mobile is held stationary for 1 second (corresponding to the relaxation time) and then removed at a speed of 0.5 mm / s. During the relaxation time, the force (compression force) decreases sharply until it becomes zero and then, when the mobile is removed, the force (stretching force) becomes negative and then increases again to the value 0. The pantyhose corresponds to the integral of the force vs. time curve for the part of the curve corresponding to the negative values of the force (stretching force). The value of the sticky is expressed in N.s. The tacky wax that can be used generally has a hardness of less than or equal to 3.5 MPa, in particular ranging from 0.01 MPa to 3.5 MPa, in particular ranging from 0.05 MPa to 3 MPa, or even from 0 to 1 MPa at 2.5 MPa. The hardness is measured according to the protocol described above. As sticky wax, a C20-C40 alkyl (hydroxystearyloxy) stearate (the alkyl group comprising 20 to 40 carbon atoms), alone or in a mixture, in particular a 12- (12'-hydroxystearyloxy) stearate, may be used. C20-C40 alkyl of the formula (II): wherein m is an integer from 18 to 38, or a mixture of compounds of the formula (II): ## STR2 ## wherein m is an integer of from 18 to 38, or a mixture of compounds of the formula (II) .

Such a wax is in particular sold under the names "Kester Wax K 82 P0" and "Kester Wax K 80 P0" by the company Koster Keunen. The waxes mentioned above generally have an initial melting point below 45 ° C. It is also possible to use the microcrystalline wax sold under the reference SP18 by the company STRAHL and PITSCH, which has a hardness of approximately 0.46 MPa and a tack value of approximately 1 N.s. The wax (es) may be present in the form of an aqueous microdispersion of wax. An aqueous wax microdispersion is understood to mean an aqueous dispersion of wax particles in which the size of said wax particles is less than or equal to about 1 μm. The microdispersions of wax are stable dispersions of colloidal wax particles, and are especially described in "Microemulsions Theory and Practice", L.M. Prince Ed., Academic Press (1977) pages 21-32. In particular, these microdispersions of wax can be obtained by melting the wax in the presence of a surfactant, and optionally a portion of the water, and then gradually adding hot water with stirring. The intermediate formation of a water-in-oil emulsion is observed, followed by a phase inversion with final obtaining of an oil-in-water type microemulsion. On cooling, a stable microdispersion of solid colloidal particles of wax is obtained.

The microdispersions of wax can also be obtained by stirring the mixture of wax, surfactant and water using stirring means such as ultrasound, the high-pressure homogenizer, the turbines. The particles of the microdispersion of wax preferably have average dimensions of less than 1 μm (in particular ranging from 0.02 μm to 0.99 μm), preferably less than 0.5 μm (in particular ranging from 0.06 μm to 0 μm). , 5 pm). These particles consist essentially of a wax or a mixture of waxes. However, they may comprise, in a minor proportion, oily and / or pasty fatty additives, a surfactant and / or a usual fat-soluble additive / active agent. The wax may be present in a content at least equal to 10% by weight. Preferably, it is present in a content ranging from 15 to 40% by weight relative to the total weight of the composition, better still from 16 to 35% and better encapsulates from 16 to 30% by weight. The wax may be present in the composition in a content ranging from 0.1% to 50% by weight, relative to the total weight of the composition, preferably ranging from 1% to 40% by weight, and preferably ranging from 5% by weight. at 30% by weight.

Additional Lipophilic Filmoqene Polymer The compositions according to the present application may also contain at least one additional lipophilic film-forming polymer. In general, the dry matter content of "additional lipophilic film-forming polymer" of the compositions according to the present application ranges from 0.1 to 40%, preferably from 0.5 to 30% and better still from 1 to 20% by weight. relative to the total weight of the composition, the additional lipophilic film-forming polymer may be in solution or in dispersion in the organic solvent.

Among the additional film-forming polymers that may be used in the composition of the present invention, mention may be made of synthetic polymers, of radical type or of polycondensate type, and their mixtures. In particular, the weight ratio (by weight of dry matter) of the polymer according to the invention to the additional film-forming polymer (s) lipophilic (s) may range from 0.1 to 10, in particular from 1 to at 5.

Radical Film-forming Polymers "Radical-film-forming polymer" means a polymer obtained by polymerization of unsaturated monomers, especially ethylenic monomers, each monomer being capable of homopolymerizing (unlike polycondensates). The radical-type film-forming polymers may in particular be polymers, or copolymers, vinylic polymers, in particular acrylic polymers. The vinyl film-forming polymers may result from the polymerization of ethylenically unsaturated monomers having at least one acid group and / or esters of these acidic monomers and / or amides of these acidic monomers. As the acid group-bearing monomer, α, β-ethylenic unsaturated carboxylic acids such as acrylic acid, methacrylic acid, crotonic acid, maleic acid, itaconic acid may be used. It is preferable to use (meth) acrylic acid and crotonic acid, and more preferably (meth) acrylic acid.

The acidic monomer esters are advantageously chosen from esters of (meth) acrylic acid (also called (meth) acrylates), in particular alkyl (meth) acrylates, in particular C 1 -C 30 alkyl, preferably C 1 -C 20, (meth) acrylates of aryl, in particular of C 6 -C 10 aryl, hydroxyalkyl (meth) acrylates, in particular C 2 -C 6 hydroxyalkyl.

Among the alkyl (meth) acrylates, mention may be made of methyl methacrylate, ethyl methacrylate, butyl methacrylate, isobutyl methacrylate, 2-ethylhexyl methacrylate, lauryl methacrylate, cyclohexyl methacrylate. Among the hydroxyalkyl (meth) acrylates, mention may be made of hydroxyethyl acrylate, 2-hydroxypropyl acrylate, hydroxyethyl methacrylate and 2-hydroxypropyl methacrylate. Among the aryl (meth) acrylates, mention may be made of benzyl acrylate and phenyl acrylate. Particularly preferred (meth) acrylic acid esters are alkyl (meth) acrylates.

According to the present invention, the alkyl group of the esters may be either fluorinated or perfluorinated, i.e. some or all of the hydrogen atoms of the alkyl group are substituted by fluorine atoms. Amides of the acidic monomers include, for example, (meth) acrylamides, and especially N-alkyl (meth) acrylamides, in particular C 2 -C 12 alkyl. Among the N-alkyl (meth) acrylamides, mention may be made of N-ethyl acrylamide, N-t-butyl acrylamide, N-t-octyl acrylamide and N-undecylacrylamide. The vinyl film-forming polymers can also result from the homopolymerization or copolymerization of monomers chosen from vinyl esters and styrene monomers. In particular, these monomers can be polymerized with acidic monomers and / or their esters and / or their amides, such as those mentioned above. Examples of vinyl esters include vinyl acetate, vinyl neodecanoate, vinyl pivalate, vinyl benzoate and vinyl t-butyl benzoate.

Styrene monomers include styrene and alpha-methyl styrene.

Film-forming polycondensates Among the film-forming polycondensates, mention may be made of polyurethanes, polyesters, polyester amides, polyamides, and epoxy ester resins, polyureas. The polyurethanes may be chosen from anionic, cationic, nonionic or amphoteric polyurethanes, polyurethane-acrylics, poly-urethanespolyvinylpyrrolidones, polyester-polyurethanes, polyether-polyurethanes, polyureas, polyurea-polyurethanes, and mixtures thereof.

The polyesters can be obtained, in known manner, by polycondensation of dicarboxylic acids with polyols, especially diols. The dicarboxylic acid can be aliphatic, alicyclic or aromatic. Examples of such acids are: oxalic acid, malonic acid, dimethylmalonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, 2,2-acid. dimethylglutaric acid, azelaic acid, suberic acid, sebacic acid, fumaric acid, maleic acid, itaconic acid, phthalic acid, dodecanedioic acid, 1,3-acid, cyclohexanedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, isophthalic acid, terephthalic acid, 2,5-norbornane dicarboxylic acid, diglycolic acid, thiodipropionic acid, 2,5-naphthalenedicarboxylic acid, 2,6-naphthalenedicarboxylic acid. These dicarboxylic acid monomers may be used alone or in combination with at least two dicarboxylic acid monomers. Among these monomers, phthalic acid, isophthalic acid and terephthalic acid are preferably chosen. The diol may be chosen from aliphatic, alicyclic and aromatic diols. A diol chosen from among: ethylene glycol, diethylene glycol, triethylene glycol, 1,3-propanediol, cyclohexane dimethanol, 4-butanediol is preferably used. As other polyols, it is possible to use glycerol, pentaerythritol, sorbitol, trimethylolpropane. The polyester amides can be obtained in a similar manner to the polyesters by polycondensation of diacids with diamines or amino alcohols. As the diamine, there can be used ethylenediamine, hexamethylenediamine, meta or para-phenylenediamine. As aminoalcohol, monoethanolamine can be used.

According to an alternative embodiment of the composition according to the invention, the lipophilic film-forming polymer may be a polymer solubilized in a liquid fatty phase comprising oils such as those described above (it is said that the film-forming polymer is a liposoluble polymer). Preferably, the liquid fatty phase comprises a volatile oil, optionally mixed with a non-volatile oil, the oils may be chosen from the oils mentioned above. As an example of a fat-soluble polymer, mention may be made of vinyl ester copolymers (the vinyl group being directly connected to the oxygen atom of the ester group and the vinyl ester having a saturated hydrocarbon radical, linear or branched, from 1 to 19 carbon atoms, linked to the carbonyl ester group) and from at least one other monomer which may be a vinyl ester (different from the vinyl ester already present), an α-olefin (having from 8 to 28 carbon atoms), an alkyl vinyl ether (the alkyl group of which contains 2 to 18 carbon atoms), or an allyl or methallyl ester (having a linear or branched, saturated hydrocarbon radical of 1 to 19 carbon atoms, bonded to the carbonyl ester group). These copolymers may be crosslinked using crosslinking agents which may be of the vinyl type, or of the allyl or methallyl type, such as tetraallyloxyethane, divinylbenzene, divinyl octanedioate, divinyl dodecanedioate, and octadecanedioate. divinyl. Examples of such copolymers include copolymers: vinyl acetate / allyl stearate, vinyl acetate / vinyl laurate, vinyl acetate / vinyl stearate, vinyl acetate / octadecylvinyl ether, vinyl propionate / laurate allyl, vinyl propionate / vinyl laurate, vinyl stearate / ethyl vinyl ether, vinyl propionate / cetyl vinyl ether, vinyl stearate / allyl acetate, 2,2-dimethyl-vinyl octanoate / vinyl laurate, dimethyl- 2, 2 allyl pentanoate / vinyl laurate, vinyl dimethyl propionate / vinyl stearate, allyl dimethyl propionate / vinyl stearate, vinyl propionate / vinyl stearate, cross-linked with 0.2% divinyl benzene, dimethyl vinyl propionate / vinyl laurate, cross-linked with 0.2% divinyl benzene, vinyl acetate / octadecyl vinyl ether, crosslinked with 0.2% tetraallyloxyethane, vinyl acetate / allyl stearate, crosslinked with 0.2% of divinyl benzene, acetate Vinyl / octadecene-1 crosslinked with 0.2% divinyl benzene and allyl propionate / allyl stearate crosslinked with 0.2% divinyl benzene.

According to one particular embodiment, the composition of the invention comprises, in addition to the copolymers of alkene and of vinyl acetate, at least one liposoluble polymer. In particular, said liposoluble polymer is chosen from vinyl ester copolymers (the vinyl group being directly connected to the oxygen atom of the ester group and the vinyl ester having a saturated hydrocarbon radical, linear or branched, from 1 to 19 carbon atoms, linked to the carbonyl ester group) and an allyl or methallyl ester (having a saturated hydrocarbon radical, linear or branched, 1 to 19 carbon atoms, bonded to the carbonyl ester group). Preferably, said liposoluble polymer is chosen from vinyl acetate / allyl stearate copolymers.

Liposoluble film-forming polymers that may also be mentioned include liposoluble copolymers, and in particular those resulting from the copolymerization of vinyl esters having from 9 to 22 carbon atoms or of alkyl acrylates or methacrylates, the alkyl radicals having from 10 to 20 carbon atoms. Such liposoluble copolymers may be chosen from copolymers of vinyl polycrystearate, vinyl polystearate crosslinked with divinylbenzene, diallyl ether or diallyl phthalate, copolymers of stearyl poly (meth) acrylate, polyvinylpolate , poly (meth) acrylate lauryl, these poly (meth) acrylates can be crosslinked using dimethacrylate ethylene glycol or tetraethylene glycol. The liposoluble copolymers defined above are known and in particular described in application FR-A-2232303; they may have a weight average molecular weight ranging from 2,000 to 500,000 and preferably from 4,000 to 200,000. According to another embodiment, at least one copolymer resulting from the copolymerization of vinyl esters having at least one additional liposoluble polymer may be used as additional liposoluble polymer. 9 to 22 carbon atoms, and in particular copolymers of vinyl polylaurate.

According to one particular embodiment, the composition according to the invention will comprise, in addition to the copolymers of alkene and of vinyl acetate, at least one liposoluble polymer chosen from vinyl acetate / allyl stearate copolymers, vinyl polylaurate copolymers. and their mixtures.

As liposoluble film-forming polymers that can be used in the invention, mention may also be made of polyalkylenes and especially copolymers of C2-C20 alkenes, such as polybutene, alkylcelluloses with a linear or branched, saturated or non-saturated C1 to C8 alkyl radical, for example ethylcellulose and propylcellulose, copolymers of vinylpyrrolidone (VP) and in particular copolymers of vinylpyrrolidone and of C2 to C40 and better still of C3 to C20 alkene. By way of example of a copolymer of VP which may be used in the invention, mention may be made of the copolymer of VP / vinyl acetate, VP / ethyl methacrylate, polyvinylpyrrolidone (PVP) butylated, VP / ethyl methacrylate / methacrylic acid, VP / eicosene, VP / hexadecene, VP / triacontene, VP / styrene, VP / acrylic acid / lauryl methacrylate.

Mention may also be made of silicone resins, generally soluble or swellable in silicone oils, which are crosslinked polyorganosiloxane polymers. The nomenclature of the silicone resins is known under the name of "MDTQ", the resin being described according to the different siloxane monomeric units that it comprises, each of the letters "MDTQ" characterizing a type of unit.

As examples of commercially available polymethylsilsesquioxane resins, mention may be made of those sold: by the company Wacker under the reference Resin MK such as Belsil PMS MK: by the company SHIN-ETSU under the references KR-220L. As siloxysilicate resins, mention may be made of trimethylsiloxysilicate (TMS) resins such as those sold under the reference SR1000 by the company General Electric or under the reference TMS 803 by the company Wacker. Mention may also be made of timethylsiloxysilicate resins sold in a solvent such as cyclomethicone, sold under the name "KF-7312J" by the company Shin-Etsu, "DC 749", "DC 593" by the company Dow Corning.

Mention may also be made of silicone resin copolymers such as those mentioned above with polydimethylsiloxanes, such as the pressure-sensitive adhesive copolymers marketed by Dow Corning under the reference BIO-PSA and described in document US Pat. No. 5,162,410. or the silicone copolymers resulting from the reaction of a silicone resin, such as those described above, and a diorganosiloxane as described in document WO 2004/073626. According to one embodiment of the invention, the film-forming polymer is a film-forming linear ethylenic block polymer, which preferably comprises at least a first block and at least a second block having different glass transition temperatures (Tg), said first and second sequences being interconnected by an intermediate sequence comprising at least one constituent monomer of the first block and at least one constituent monomer of the second block. Advantageously, the first and second sequences and the block polymer are incompatible with each other. Such polymers are described for example in EP 1 411 069 or WO 04/028488.

The lipophilic film-forming polymer may also be present in the composition in the form of particles dispersed in a non-aqueous phase. Examples of non-aqueous dispersions of film-forming polymer that may be mentioned are acrylic dispersions in isododecane, such as Mexomere PAP® from Chimex, and dispersions of particles of a grafted ethylenic polymer, preferably acrylic, in a liquid fatty phase. , the ethylenic polymer being advantageously dispersed in the absence of additional stabilizer at the surface of the particles as described in particular in WO 04/055081.

The composition according to the invention may comprise a plasticizer promoting the formation of a film with the film-forming polymer. Such a plasticizer may be chosen from all compounds known to those skilled in the art as being capable of performing the desired function.

Aqueous Phase The composition may comprise an aqueous phase. The aqueous phase comprises water. It may also comprise at least one water-soluble solvent. By "water-soluble solvent" is meant in the present invention a liquid compound at room temperature and miscible with water.

Preferably, the composition is anhydrous and more generally contains less than 10% by weight of water relative to the total weight of the composition, better less than 5% by weight of water relative to the total weight of the composition, more preferably less than 2%, and preferably less than 1% water.

Dyestuffs The compositions in accordance with the invention preferably comprise at least one dyestuff, such as pulverulent materials, fat-soluble dyes and water-soluble dyes.

The pulverulent dyestuffs may be chosen from pigments and nacres. The pigments may be white or colored, mineral and / or organic, coated or uncoated. Among the inorganic pigments, titanium dioxide, optionally surface-treated, oxides of zirconium, zinc or cerium, as well as oxides of iron 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 ferric blue or chromium oxide, titanium mica with an organic pigment of the aforementioned type as well as pearlescent pigments based on bismuth oxychloride. Liposoluble dyes are, for example, Sudan Red, D & C Red 17, D & C Green 6, 6-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 0.01 to 30% by weight relative to the total weight of the composition.

Charks The compositions according to the invention may also comprise at least one filler. The fillers may be selected from those well known to those skilled in the art and commonly used in cosmetic compositions. The fillers may be inorganic or organic, lamellar or spherical. Mention may be made of talc, mica, silica, kaolin, polyamide powders such as Nylon® sold under the name Orgasol® by Atochem, poly-alanine and polyethylene, tetrafluoroethylene polymer powders. such as Teflon®, lauroyl-lysine, starch, boron nitride, expanded polymeric hollow microspheres such as those of polyvinylidene chloride / acrylonitrile such as those sold under the name Expancel® by Nobel Industrie, acrylic powders such as those sold under the name Polytrap® by the company Dow Corning, polymethyl methacrylate particles and silicone resin microspheres (Toshiba's Tospearls®, for example), precipitated calcium carbonate, carbonate and magnesium hydro-carbonate, hydroxyapatite, hollow silica microspheres (Silica Beads® from MAPRECOS), glass or ceramic microcapsules metallic amines derived from organic carboxylic acids having from 8 to 22 carbon atoms, and in particular from 12 to 18 carbon atoms, for example zinc, magnesium or lithium stearate, zinc laurate, magnesium myristate.

It is also possible to use a compound capable of swelling with heat and in particular thermally expandable particles such as unexpanded microspheres of copolymer of vinylidene chloride / acrylonitrile / methyl methacrylate or copolymer of acrylonitrile homopolymer, for example those sold respectively under the references Expancel® 820 DU 40 and Expancel®007WU by the company AKZO NOBEL. The fillers may represent from 0.1 to 25%, in particular from 0.2 to 20% by weight relative to the total weight of the composition.

Fibers The compositions in accordance with the invention may also comprise at least one fiber which makes it possible to improve the lengthening effect. By "fiber" it is necessary to understand an object of length L and of diameter D such that L is much greater than D, D being the diameter of the circle in which the section of the fiber is inscribed. In particular, the L / D ratio (or form factor) is chosen in the range from 3.5 to 2500, in particular from 5 to 500, and more particularly from 5 to 150. The fibers that can be used in the composition of the The invention may be fibers of synthetic or natural, mineral or organic origin. They can be short or long, unitary or organized, for example braided, hollow or full. Their shape can be any and in particular of circular or polygonal section (square, hexagonal or octagonal) depending on the specific application envisaged. In particular, their ends are blunt and / or polished to avoid injury. In particular, the fibers have a length ranging from 1 μm to 10 mm, in particular from 0.1 mm to 5 mm and more particularly from 0.3 mm to 3.5 mm. Their section may be in a circle with a diameter ranging from 2 nm to 500 μm, in particular ranging from 100 nm to 100 μm and more particularly from 1 μm to 50 μm. The weight or titer of the fibers is often given in denier or decitex and represents the weight in gram for 9 km of yarn. The fibers according to the invention may in particular have a title chosen in the range from 0.15 to 30 denier and in particular from 0.18 to 18 denier.

The fibers that can be used in the composition of the invention may be chosen from rigid or non-rigid fibers, they may be of synthetic or natural origin, mineral or organic. Furthermore, the fibers may or may not be treated on the surface, coated or uncoated, colored or unstained.

As fibers that can be used in the composition according to the invention, mention may be made of non-rigid fibers such as polyamide (Nylon®) fibers or rigid fibers such as polyimide-amide fibers such as those sold under the name KERMEL ( KERMEL TECH (by the company Rhodia or poly- (p-phenyleneterephthalamide) (or aramid) sold especially under the name Kevlar® by the company Dupont de Nemours The fibers may be present in the composition according to the invention in a content ranging from 0.01% to 10% by weight, relative to the total weight of the composition, in particular from 0.1% to 5% by weight, and more particularly from 0.3% to 3% by weight.

Cosmetic active ingredients The compositions in accordance with the invention may also comprise at least one cosmetic active agent. As cosmetic active agents that can be used in the compositions in accordance with the invention, mention may in particular be made of antioxidants, preservatives, perfumes, neutralizers, emollients, thickeners, coalescing agents, plasticizers, moisturizers and vitamins. , sunscreens, 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.

Preferably, the composition according to the invention is not rinsed. Advantageously, the composition is a makeup composition and in particular a mascara.

The following examples are given by way of illustration of the present invention, and can not limit the scope thereof.

The assembly for coating keratin fibers according to the invention may comprise an applicator adapted to apply said composition and, if appropriate, a packaging device adapted to receive said composition.

Applicator The applicator comprises means for smoothing and / or separating the keratin fibers, such as eyelashes or eyebrows, especially in the form of teeth, bristles or other reliefs. The applicator is arranged to apply the composition to the eyelashes or the eyebrows, and may comprise for example a brush or a comb. The applicator can still be used for makeup finishing, on a region of eyelashes or eyebrows made up or loaded with the composition. The brush may comprise a twisted core and bristles caught between the turns of the core, or be carried out otherwise. The comb is for example made in one piece by molding plastic material.

The application element can be magnetic. In some exemplary embodiments, the applicator element is mounted at the end of a rod, which may be flexible, which may contribute to improving comfort at the application.

Packaging device The packaging device comprises a container intended to house the coating composition of the keratinous fibers. This composition can then be taken from the container by immersing the applicator therein. This applicator may be integral with a closure element of the container. This closure element may form a gripping member of the applicator. This gripping member may form a cap to removably mount on said container by any suitable means such as screwing, latching, fitting or other. Such a container can thus reversibly accommodate said applicator. This container may optionally be equipped with a wiper adapted to rid a surplus of product taken by the applicator.

A process for applying the composition according to the invention to the eyelashes or the eyebrows may also comprise the following steps: forming a deposit of the cosmetic composition on the eyelashes or the eyebrows, leaving the deposit on the eyelashes or the eyebrows the deposit can dry.

It should be noted that according to another embodiment the applicator can form a product container. In such a case a container may for example be provided in the gripping member and an internal channel may internally connect the gripping member to the relief elements application.

Finally, it should be noted that the packaging and application assembly can be in the form of a kit, the applicator and the packaging device can be housed separately under the same packaging article.

EXAMPLES In order to illustrate the subject of the invention, a composition for application to eyelashes or false eyelashes comprising a copolymer according to the invention is prepared as follows. Content Inqredients in% ZEONEX 330R (ZEON CORPORATION) Isododecane (INEOS) 64 Black iron oxide (SUNPURO BLACK IRON OXIDE C33-7001 - SUN) 3 Modified distearyl dimethyl ammonium hectorite (BENTONE 38 VCG - 3 ELEMENTIS) Isododecane is introduced in a skillet heated to 95 ° C and stirring type Rayneri. The other ingredients of the composition are gradually introduced with stirring. The mixture is then heated with stirring until a homogeneous solution is obtained. The level of isododecane optionally evaporated is re-introduced into the composition. The resulting mixture was stirred again with stirring for 10 minutes. The composition thus prepared after cooling is removed by means of a mascara brush. The composition is applied to a false eyelash specimen by making two passes. There is then a bending of the eyelashes after drying of the deposit. Throughout the application, the wording "comprising a" or "comprising a" means "comprising at least one" or "comprising at least" one unless the contrary is specified.

Claims (20)

REVENDICATIONS1. Cosmetic composition for coating keratinous fibers, such as eyelashes or eyebrows, comprising: a polymer mainly derived from the (co-) (homo-) random polymerization of (poly) cyclic monomers having a higher glass transition temperature (Tg) at 80 ° C and a weight average molecular weight greater than 20000 g / mol, said (poly) cyclic monomers comprising a non-aromatic (poly) cycloalkene substituted or unsubstituted, - an organic volatile solvent in a content greater than or equal to 20 % by weight relative to the total weight of the composition. The composition of claim 1, wherein said polymer is sterically hindered. 3. Composition according to claim 1 or 2, wherein said (poly) cycloalkene comprises at least one ring of 5 to 22 carbon atoms. 4. Composition according to claim 1, 2 or 3, wherein said (poly) cycloalkene is substituted by at least one hydrocarbon group. 5. Composition according to the preceding claim, wherein said at least one hydrocarbon group has from 1 to 6 carbon atoms. 6. A composition according to any one of the preceding claims, wherein said (poly) cycloalkene is bridged. A composition according to any one of the preceding claims, wherein the weight average molecular weight is from 40,000 g / mol to 300,000 g / mol. 8. Composition according to any one of the preceding claims, wherein said monomers being chosen from a norbornene substituted or not, a substituted or unsubstituted tetracyclododecene, a substituted or unsubstituted norbornadiene, a (poly) cycloalkadiene substituted or not, and mixtures thereof. 9. Composition according to the preceding claim, wherein said norbornene is chosen from a norbornene substituted with one or more group (s) (cyclo) alkyl (s), such as 5-methyl-2-norbornene, 5-ethyl- 2-norbornene, 5,6-dimethyl-2-norbornene, 5,6-dimethyl-2-norbornene, 5,5,6-trimethyl-2-norbornene, 5-cyclopentyl-2-norbornene, and norbornene substituted with one or more alkenyl group (s), such as 5-ethylidene-2-norbornene, 5-vinyl-2-norbornene. The composition of claim 8, wherein said tetracyclododecene is selected from tetracyclododecene and ethyl tetracyclododecene. 11. Composition according to claim 8, wherein the (poly) cycloalkadiene is chosen from (poly) cyclopentadiene and polcyclohexadiene, in particular from cyclopentadiene, dicyclopentadiene, methyldicyclopentadiene, pentamethylcyclopentadiene, and their mixture. 12. Composition according to one of the preceding claims, wherein said polymer is devoid of hydrophilic monomer. 13. The composition according to any one of the preceding claims, wherein said polymer is soluble in said organic volatile solvent. 14. A composition according to any one of the preceding claims, wherein said polymer is film-forming. 15. A composition according to any one of the preceding claims, wherein the polymer is amorphous. 16. Composition according to any one of the preceding claims, wherein the polymer is present in a content greater than or equal to 20% by weight of dry matter relative to the total weight of the composition. 17. Composition according to any one of the preceding claims, wherein said volatile organic solvent is hydrocarbon having 7 to 16 carbon atoms. 18. Composition according to any one of the preceding claims, wherein said composition has a water content of less than or equal to 10% by weight relative to the total weight of the composition. 19. Composition according to any one of the preceding claims, wherein said composition is a mascara. 20. A process for bending keratinous fibers, such as eyelashes or eyebrows, comprising a step of applying a cosmetic composition for coating keratinous fibers according to any one of claims 1 to 19.30.