EP1968534A2

EP1968534A2 - Kit comprising a silicone oil and silicone compounds x or y capable of reacting together on the eyelashes

Info

Publication number: EP1968534A2
Application number: EP06847189A
Authority: EP
Inventors: Nathalie Jaeger Lezer
Original assignee: LOreal SA
Current assignee: LOreal SA
Priority date: 2005-12-20
Filing date: 2006-12-20
Publication date: 2008-09-17
Also published as: WO2007071706A2; WO2007071885A2; JP2009520002A; WO2007071706A9; US20090214455A1; EP1971318A2; WO2007071885A3; KR20080077410A; KR20080082995A; JP2009520009A; WO2007071706A3

Abstract

The present invention relates to a kit for coating the eyelashes, comprising at least a first composition and at least a second composition packaged separately, wherein the kit comprises at least one compound (X), at least one compound (Y) and, optionally, at least one catalyst or a peroxide, wherein at least one of the compounds X or Y is a silicone compound, with the proviso that the compounds X and Y and the catalyst, when it is present, or the peroxide, are not present simultaneously in the same composition, wherein said compounds X and Y are capable of reacting together by means of a hydrosilylation reaction, by means of a condensation reaction or by means of a crosslinking reaction in the presence of a peroxide, when they are brought into contact with one another and at least one silicone oil.

Description

Kit comprising a silicone oil and silicone compounds X and Y able to react together on the eyelashes.

The present invention relates to a kit for coating the eyelashes, in particular makeup or non-therapeutic care of the eyelashes, comprising at least two compositions and at least two compounds X and Y, able to react together, at least one of compounds being silicone, and a silicone oil. The invention also relates to a cosmetic kit comprising said compounds X and Y. The composition may be an eyelash makeup composition, an eyelash makeup base, a composition to be applied to a mascara, also called a topcoat, or still a composition for cosmetic treatment of the eyelashes. Mascara is especially intended for human eyelashes, but also false eyelashes.

In the case of compositions for coating eyelashes or mascaras, it is known in particular anhydrous mascaras or low water content and / or water-soluble solvents, so-called "waterproof mascaras", formulated as a dispersion of waxes in solvents non-aqueous and have good resistance to water and / or sebum.

However, the makeup film obtained after the application of these compositions is not sufficiently resistant to water, for bathing or showers for example, with tears or sweat or sebum. The mascara then tends to crumble in time: grains are deposited and unsightly marks appear around the eyes.

The invention makes it possible to propose a new generation of mascara having a very good performance, which leads to an elongating result, with a smooth continuous film, intense black and brilliant. The mascaras according to the invention allow a makeup result that is longer than 1 day, better more than 3 days and better still beyond one week.

The inventors have discovered that it is possible to obtain such properties by using a system comprising silicone compounds which polymerize and / or crosslink in situ so as to better adhere to the eyelashes. These silicone compounds also have good biocompatibility.

These compounds are capable of reacting together on the eyelashes or on a support so as to form, on the eyelashes, an adherent film of good strength. It is therefore an object of the present invention to provide an alternative formulation pathway for a lash-coating composition leading to an eyelash-loading effect, and which solves all or part of the problems associated with conventional formulation pathways. In addition, the compositions according to the invention allow a smooth and homogeneous application and lead to an eyelash makeup having a very good performance.

Therefore, according to a first aspect, the present invention relates to an eyelash coating kit comprising: at least a first composition and at least a second composition packaged separately, the kit comprising at least one compound (X), at at least one compound (Y), and optionally at least one catalyst or peroxide, at least one of the compounds X or Y being silicone, with the proviso that the compounds X, Y and the catalyst when it is present, or the peroxide, are not present simultaneously in the same composition, said compounds X and Y being capable of reacting together by a hydrosilylation reaction, or by a condensation reaction or by a crosslinking reaction in the presence of a peroxide, when they are put in contact with each other, and at least one silicone oil.

The compound (s) X or the compound (s) Y may be applied to the eyelashes from several compositions containing the compound (s) X, the compound (s) Y, the silicone oil (s), alone or as a mixture, or from of a single composition containing the compound (s) X, the compound (s) Y and the silicone oil (s).

The compound (s) X and the compound (s) Y may be in particular present in the first and / or in the second composition.

The silicone oil or oils may in particular be present in the first and / or in the second composition. According to a particular embodiment of the invention, a first composition is applied to the eyelashes comprising the compound (s) X, the compound (s) Y and the silicone oil (s)

According to another particular embodiment of the invention, a first composition is applied to the eyelashes comprising at least one silicone oil and a second composition comprising the compound (s) X and the compound (s) Y, the order of application of the first and second compositions being indifferent.

According to another particular embodiment of the invention, a first composition comprising the silicone oil or oils is applied to the eyelashes, a second composition comprising the compound (s) X and a third composition comprising the compound (s) Y, the order application of said compositions being indifferent.

According to another particular embodiment of the invention, a first composition comprising the compound (s) X and at least one silicone oil and a second composition comprising the compound (s) Y, the order of application of said compounds, is applied to the eyelashes. compositions being indifferent.

According to another particular embodiment of the invention, a first composition comprising the compound (s) X and a second composition comprising the compound (s) Y and at least one silicone oil is applied to the eyelashes, the order of application of said compositions compositions being indifferent.

According to a particular embodiment of the invention, at least one catalyst as defined below is applied to the eyelashes to activate the reaction between the compound (s) X and the compound (s) Y.

For example, the catalyst (s) may be present in one or the other of the first and second compositions applied to the eyelashes or in an additional composition, in which case the order of application of the various compositions to the eyelashes is indifferent. The catalysts advantageously chosen are those which are described below.

According to a preferred embodiment, the first composition comprises at least one compound X and at least one compound Y, the second composition comprises at least one compound X and a catalyst, and at least one of the first and second compositions comprises at least one a silicone oil. According to another particular embodiment of the invention, at least one additional reactive compound as defined below is applied to the eyelashes. For example, the additional reactive compound (s) may be present in one or the other or in each of the first and second compositions applied to the eyelashes or in an additional composition, in which case the order of application of the various compositions to the eyelashes is indifferent.

According to one embodiment, the kit further comprises a so-called additional composition intended to eliminate the coating obtained on the eyelashes by reaction of compounds X and Y, said composition preferably comprising at least one oil or organic solvent chosen from oils or solvents. organic described below.

Each composition of the kit may be packaged separately in the same packaging article, for example in a bi-compartmented pen, the base composition being delivered by one end of the pen and the composition of the top being delivered by the other end of the pen, each end being closed in particular sealed manner by a cap. Each composition may also be packaged in a compartment within the same packaging article, the mixture of the two compositions being effected at the end or ends of the packaging article during the delivery of each composition.

Alternatively, each composition can be packaged in a different packaging article.

Another subject of the invention is an eyelash coating composition comprising: at least one compound X and - at least one compound Y, at least one of compounds X and Y being a silicone compound, and optionally at least one catalyst or a peroxide, said compounds X and Y being capable of reacting together by a hydrosilylation reaction, condensation, or crosslinking in the presence of a peroxide, when they are brought into contact with each other, and at least one silicone oil. In this embodiment, at least one of the compounds X and Y may be present in an encapsulated form.

According to one variant, the two compounds X and Y are both present in separate encapsulated forms. More particularly, the compounds X and / or Y may be present in the form of microcapsules and in particular nanocapsules of heart / shell type, the core of lipophilic nature containing the compound X or the compound Y.

The invention further relates to the use of a kit or a composition as described above, to obtain a film deposited on the eyelashes, having improved holding properties, gloss and / or comfort.

According to another aspect, the subject of the present invention is a cosmetic eyelash coating process consisting in applying to said eyelashes at least one layer of a mixture of a first composition and a second composition, each of the first and second compositions. comprising at least one compound X and / or at least one compound Y, and optionally at least one catalyst or a peroxide; at least one of the compounds X and Y being a silicone compound, said compounds X and Y being capable of reacting together by a hydrosilylation reaction, or by a condensation reaction or by a crosslinking reaction in the presence of a peroxide when they are brought into contact with each other, the compounds X, Y and the catalyst when present, or the peroxide, are not simultaneously present in the same composition, said mixture being obtained either extemporaneous before application to the eyelashes, or simultaneously with its application to the eyelashes, and at least one of said first and second compositions comprising at least one silicone oil.

According to one embodiment, the compounds X and Y are mixed extemporaneously and the mixture is applied to the eyelashes.

This is why the subject of the invention is a cosmetic process for coating the eyelashes consisting of: a. extemporaneously mixing at least a first composition and at least a second composition, each of the first and second compositions comprising at least one compound X and / or at least one compound Y, and optionally at least one catalyst or a peroxide; at least one of the compounds X and Y being a silicone compound, the compounds X, Y and the catalyst when it is present, or the peroxide, not being simultaneously present in the same composition, said compounds X and Y being capable of reacting together by a hydrosilylation reaction, or by a condensation reaction or by a crosslinking reaction in the presence of a peroxide, when they are brought into contact with each other, and at least one of said first and second compositions comprising at least one silicone oil, then b. to apply on said eyelashes at least one layer of said mixture.

According to one variant, at least two separate compositions are applied to the eyelashes, each comprising at least one compound X and / or at least one compound Y, and optionally at least one catalyst or a peroxide.

This is why the present invention relates to a cosmetic process for coating the eyelashes, comprising the application to the eyelashes: a. at least one layer of a first composition; b. at least one layer of a second composition, each of the first and second compositions comprising at least one compound X and / or at least one compound Y, and optionally at least one catalyst or a peroxide; at least one of the compounds X and Y being a silicone compound, the compounds X, Y and the catalyst when it is present, or the peroxide, not being simultaneously present in the same composition, said compounds X and Y being capable of reacting together by a hydrosilylation reaction, or by a condensation reaction or by a crosslinking reaction in the presence of a peroxide, when they are brought into contact with each other, and at least one of said first and second compositions comprising at least one silicone oil.

The order of application of the first and second composition is indifferent. It is also possible to apply alternately on the eyelashes several layers of each of the first and second compositions. According to a particular embodiment of the invention, at least one catalyst as defined below is applied to the eyelashes to activate the reaction between the compound (s) X and the compound (s) Y.

For example, the catalyst (s) may be present in one or the other or in each first and second compositions applied to the eyelashes or in an additional composition, in which case the order of application of the different compositions to the eyelashes is indifferent. The catalysts advantageously chosen are those which are described below.

According to another embodiment, at least one additional layer of at least one composition comprising a cosmetically acceptable medium, and preferably at least one film-forming polymer and at least one organic (or oily) or aqueous solvent medium, is applied on the or the layers of the composition or compositions comprising the X and / or Y compounds, for example to improve the hold, gloss and / or comfort of the compound (s).

Of course, each composition comprises a cosmetically acceptable medium, ie a non-toxic medium that can be applied to human eyelashes and has a pleasant appearance, odor and feel.

I / X and Y compounds

By silicone compound is meant a compound comprising at least two organosiloxane units. According to one particular embodiment, the compounds X and the compounds Y are silicone.

Compounds X and compounds Y may be amine or non-amino.

According to another embodiment, at least one of the compounds X and Y is a polymer whose main chain is formed mainly of organosiloxane units.

Among the silicone compounds mentioned below, some may have both film-forming and adhesive properties, for example according to their proportion of silicone or according to whether they are used in admixture with a particular additive. It is therefore possible to modulate the film-forming properties or the adhesive properties of such compounds according to the intended use, this is particularly the case for so-called "room temperature vulcanization" reactive silicone elastomers. Compounds X and Y may react together at a temperature ranging from room temperature to 180 ° C. Advantageously, the compounds X and Y are capable of reacting together at ambient temperature (20 ± 5 ° C.) and atmospheric pressure, alone or advantageously in the presence of a catalyst, by a hydrosilylation reaction or a condensation reaction or a reaction of crosslinking in the presence of a peroxide.

Polar groups

According to a particular embodiment, at least one of the compounds X and Y carries at least one polar group capable of forming at least one hydrogen bond with the eyelashes.

By polar group is meant a group comprising carbon and hydrogen atoms in its chemical structure and at least one heteroatom (such as O, N, S and P), such that said group is capable of establishing at least one link hydrogen with eyelashes.

Compounds bearing at least one group capable of establishing a hydrogen bond are particularly advantageous because they provide the compositions containing them with better adhesion to the eyelashes, thanks to the ability of these groups to establish a hydrogen bond with the eyelashes.

The polar group (s) carried by at least one of the compounds X and Y is / are capable of establishing a hydrogen bond, and comprises (s) either a hydrogen atom bonded to an electronegative atom, or an electronegative atom such as for example O, N, S quote the corresponding atoms. When the group comprises a hydrogen atom bonded to an electronegative atom, the hydrogen atom may interact with another electronegative atom carried, for example by another molecule, such as keratin, to form a hydrogen bond. When the group comprises an electronegative atom, the electronegative atom may interact with a hydrogen atom bonded to an electronegative atom carried, for example by another molecule, such as keratin, to form a hydrogen bond.

Advantageously, these polar groups can be chosen from the following groups:

carboxylic acid -COOH, alcohols, such as: -CH 2 OH or - CH (R) OH, R being an alkyl radical comprising from 1 to 6 carbon atoms, amino of formula -NR ₁ R _2, in which the R ₁ and R _{2, which are} identical or different, represent an alkyl radical comprising 1 to 6 carbon atoms or one of R1 or R2 denotes a hydrogen, pyridino or amido atom of formula -NH-COR 'or -CO-NH-R' in which R 'represents a hydrogen atom or an alkyl radical comprising from 1 to 6 carbon atoms - pyrrolidino preferably chosen from groups of formula:

R ₁ being an alkyl radical comprising 1 to 6 carbon atoms, carbamoyl of formula -O-CO-NH-R 'or -NH-CO-OR', R 'being as defined above, - thiocarbamoyl, such that -O-CS-NH-R 'or -NH-CS-O R', R 'being as defined above, ureyl such that -NR' -CO-N (R ') ₂ , the R' identical or different being as defined above, sulfonamido such as -N R'-S (= O) 2- R ', R' as defined above, and their associations

Preferably, these polar groups are present at a content of less than or equal to 10% by weight relative to the weight of each compound X or Y, preferably less than or equal to 5% by weight, for example in a content ranging from 1 to 3% by weight

The polar group or groups may be located in the main chain of the compound X and / or Y or may be pendant to the main chain or located at the ends of the main chain of the compound X and / or Y.

1- X and Y compounds that may react with hydrosilvlation According to one embodiment, the compounds X and Y are capable of reacting by hydrosilylation, this reaction being simplified in the following way:

- Si-H + CH ₂ = CH-W- ~ - Si-CH ₂ -CH ₂ -W

with W representing a carbon and / or silicone chain comprising one or more unsaturated aliphatic groups.

In this case, the compound X may be chosen from silicone compounds comprising at least two unsaturated aliphatic groups. By way of example, the compound X can comprise a main silicone chain whose unsaturated aliphatic groups are pendant to the main chain (lateral group) or located at the ends of the main chain of the compound (terminal group). In the remainder of the description, these particular compounds will be called polyorganosiloxanes with unsaturated aliphatic groups.

According to one embodiment, the compound X and / or the compound Y carries at least one polar group, as described above, capable of forming at least one hydrogen bond with the eyelashes. This polar group is advantageously carried by the compound X which comprises at least two unsaturated aliphatic groups.

According to one embodiment, the compound X is chosen from polyorganosiloxanes comprising at least two unsaturated aliphatic groups, for example two or three vinyl or allylic groups, each bonded to a silicon atom.

According to an advantageous embodiment, the compound X is chosen from polyorganosiloxanes comprising siloxane units of formula:

m (3-iri) ² (I) in which:

R represents a monovalent hydrocarbon group, linear or cyclic, comprising from 1 to 30 carbon atoms, preferably from 1 to 20, and better from 1 to 10 carbon atoms, for example a short-chain alkyl radical comprising, for example, from 1 to 10 carbon atoms, in particular a methyl radical or a phenyl group, preferably a methyl radical, m is equal to at 1 or 2 and R 'represents: an unsaturated aliphatic hydrocarbon group comprising from 2 to 10, preferably from 2 to 5 carbon atoms, for example a vinyl group or a -FT-CH = CHR "' group in which R "is a divalent aliphatic hydrocarbon chain, comprising from 1 to 8 carbon atoms, bonded to the silicon atom and R '" is a hydrogen atom or an alkyl radical comprising from 1 to 4 carbon atoms, preferably a hydrogen atom, mention may be made, as R 'group, of the vinyl and allyl groups and their mixtures, or o an unsaturated cyclic hydrocarbon group comprising from 5 to 8 carbon atoms, for example a cyclohexenyl group. hyd unsaturated aliphatic hydrocarbon, preferably a vinyl group.

According to one particular embodiment, the polyorganosiloxane also comprises units of formula

R SiO,,,

T

(H) wherein R is a group as defined above, and n is 1, 2 or 3.

According to one variant, the compound X may be a silicone resin comprising at least two ethylenic unsaturations, said resin being capable of reacting with the compound Y by hydrosilylation. Mention may be made, for example, of resins of MQ or MT type bearing itself unsaturated reactive ends -CH = CH2. These resins are crosslinked organosiloxane 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. The letter M represents the monofunctional unit of formula (CH ₃ ) ₃ SiOi / ₂ , the silicon atom being connected to a single oxygen atom in the polymer comprising this unit. The letter D signifies a difunctional unit (CH ₃ ) ₂ SiO _2/2 in which the silicon atom is connected to two oxygen atoms. The letter T represents a trifunctional unit of formula (CH ₃ ) SiO _{3Z 2} . In the units M, D and T defined above, at least one of the methyl groups may be substituted by a group R other than the methyl group such as a hydrocarbon radical (in particular alkyl) having from 2 to 10 carbon atoms or a phenyl group or else a hydroxyl group.

Finally, the letter Q means a tetrafunctional unit SiO4 / 2 in which the silicon atom is bonded to four hydrogen atoms themselves linked to the rest of the polymer. Examples of such resins that may be mentioned are MT silicone resins such as poly (phenyl-vinylsilsesquioxane), such as those sold under the reference SST-3PV1 by Gelest.

Preferably, the compounds X comprise from 0.01 to 1% by weight of unsaturated aliphatic groups.

Advantageously, the compound X is chosen from polyorganopolysiloxanes, especially those comprising the siloxane units (I) and optionally (II) ° described above.

The compound Y preferably comprises at least two free Si-H groups (hydrogenosilane groups).

The compound Y may advantageously be chosen from organosiloxanes comprising at least one alkylhydrogenosiloxane unit of the following formula:

in which :

R represents a linear or cyclic monovalent hydrocarbon group comprising from 1 to 30 carbon atoms, for example an alkyl radical having from 1 to 30 carbon atoms, preferably from 1 to 20 and better still from 1 to 10 carbon atoms; , in particular a methyl radical, or else a phenyl group and p is equal to 1 or 2. Preferably R is a hydrocarbon group, preferably methyl.

These organosiloxane compounds Y with alkylhydrogenosiloxane units can further comprising units of formula:

^R n ^{S10 (} 4zûJ

2

(H) as defined above.

The compound Y may be a silicone resin comprising at least one unit selected from the units M, D, T, Q as defined above and comprising at least one Si-H group such as the marketed poly (methyl-hydridosilsesquioxane) under the reference SST-3MH1.1 by Gelest

Preferably, these organosiloxane compounds Y comprise from 0.5 to 2.5% by weight of Si-H groups. Advantageously, the radicals R represent a methyl group in the formulas (I), (11 °), (111 °) above.

Preferably, these organosiloxanes Y comprise terminal groups of formula (CH ₃ ) ₃ SiOi / 2.

Advantageously, the organosiloxanes Y comprise at least two alkylhydrogenosiloxane units of formula (H ₃ C) (H) SiO and optionally comprise (H ₃ C) ₂ SiO units.

Such organosiloxane compounds Y having hydrogenosilane groups are described, for example, in document EP 0465744.

According to one variant, the compound X is chosen from oligomers or organic polymers (by organic means compounds whose main chain is non-silicone, preferably compounds not comprising silicon atoms) or from polymers or oligomers organic / silicone hybrids, said oligomers or polymers bearing at least 2 reactive unsaturated aliphatic groups, the compound Y being chosen from the hydrogenosiloxanes mentioned above.

According to one embodiment, the organic compounds X or hybrid organic / silicone bearing at least 2 reactive unsaturated aliphatic groups, carry at least one polar group as described above.

Compound X, of organic nature, may then be chosen from vinyl or (meth) acrylic polymers or oligomers, polyesters, polyurethanes and / or polyureas, polyethers, perfluoropolyethers, polyolefins and the like. polybutene, polyisobutylene, dendrimers or organic hyperbranched polymers, or mixtures thereof.

In particular, the organic polymer or the organic part of the hybrid polymer may be chosen from the following polymers: a) polyesters with ethylenic unsaturation (s):

It is a group of polymers of polyester type having at least 2 ethylenic double bonds, distributed randomly in the main chain of the polymer. These unsaturated polyesters are obtained by polycondensation of a mixture of linear or branched or cycloaliphatic aliphatic dicarboxylic acids containing especially from 3 to 50 carbon atoms, preferably from 3 to 20 and better still from 3 to 10 carbon atoms, such as adipic acid or sebacic acid, aromatic dicarboxylic acids having especially 8 to 50 carbon atoms, preferably 8 to 20 and better still 8 to 14 carbon atoms, such as phthalic acids, especially terephthalic acid, and / or dicarboxylic acids derived from dimers of ethylenically unsaturated fatty acids such as oleic or linoleic acid dimers described in application EP-A-959 066

(paragraph [0021]) marketed under the names Pripol ^® by the company Unichema or Empol ^® by the company Henkel, all these diacids must be free of polymerizable ethylenic double bonds, - linear aliphatic diols or branched or cycloaliphatic comprising in particular from 2 to 50 carbon atoms, preferably from 2 to 20 and more preferably from 2 to 10 carbon atoms, such as ethylene glycol, diethylene glycol, propylene glycol, 1,4-butanediol or cyclohexanedimethanol, aromatic diols having from 6 to 50 carbon atoms, preferably 6 to 20 and more preferably 6 to 15 carbon atoms such as bisphenol A and bisphenol B, and / or diol dimers derived from the reduction of fatty acid dimers as defined previously, and one or more dicarboxylic acids or their anhydrides having at least one polymerizable ethylenic double bond and having from 3 to 50 carbon atoms, preferably from 3 to 20 and better from 3 to 10 carbon atoms, such as maleic acid, fumaric acid or itaconic acid.

the polyesters with (meth) acrylate groups and / or terminal: It is a group of polymers of polyester type obtained by polycondensation of a mixture of linear or branched aliphatic carboxylic or cycloaliphatic dicarboxylic acids comprising in particular from 3 to 50 atoms carbon, preferably from 3 to 20 and better still from 3 to 10 carbon atoms, such as adipic acid or sebacic acid, of aromatic dicarboxylic acids having in particular from 8 to 50 carbon atoms, preferably from 8 to And preferably 8 to 14 carbon atoms, such as phthalic acids, especially terephthalic acid, and / or dicarboxylic acids derived from dimers of ethylenically unsaturated fatty acids such as oleic or linoleic acid dimers described in US Pat. EP-A-959 066 (paragraph [0021]) marketed under the names Pripol ^® by the company Unichema or Empol ^® by Henkel, all these diacids to be free of C polymerizable ethylenic linkages, of linear or branched or cycloaliphatic aliphatic diols comprising in particular from 2 to 50 carbon atoms, preferably from 2 to 20 and better still from 2 to 10 carbon atoms, such as ethylene glycol, diethylene glycol, propylene glycol, 1,4-butanediol or cyclohexanedimethanol, aromatic diols having from 6 to 50 carbon atoms, preferably from 6 to 20 and more preferably from 6 to 15 carbon atoms such as bisphenol A and bisphenol B, and at least one (meth) acrylic acid ester and a diol or polyol having 2 to 20 carbon atoms, preferably 2 to 6 carbon atoms, such as 2-hydroxyethyl (meth) acrylate, the

2-hydroxypropyl (meth) acrylate and glycerol methacrylate. These polyesters differ from those described above under point a) in that the ethylenic double bonds are not located in the main chain but on side groups or at the end of the chains. These ethylenic double bonds are those of the groups

(meth) acrylate present in the polymer. Such polyesters are sold for example by UCB under the Ebecryl denominations ^® (EBECRYL ^® 450: molecular weight 1600, an average of 6 acrylate functions per molecule, EBECRYL ^® 652: molecular weight 1500, an average of 6 acrylate functions per molecule, EBECRYL ^® 800: molar mass 780, on average 4 acrylate functions per molecule, EBECRYL ^® 810: molar mass 1000, on average 4 acrylate functions per molecule, EBECRYL ^® 50 000: molar mass 1500, on average 6 acrylate functions per molecule)

polyurethanes and / or polyureas with (meth) acrylate groups, obtained by polycondensation of cycloaliphatic and / or aromatic aliphatic diisocyanates, triisocyanates and / or polyisocyanates having in particular from 4 to 50, preferably from 4 to 30 carbon atoms, such as hexamethylenediisocyanate, isophorone diisocyanate, toluene diisocyanate, diphenylmethane diisocyanate or isocyanurates of the formula

resulting from the trimerization of 3 molecules of diisocyanates OCN-R-

CNO, where R is a linear, branched or cyclic hydrocarbon radical having 2 to 30 carbon atoms; polyols, especially diols, free of polymerizable ethylenic unsaturations, such as 1,4-butanediol, ethylene glycol or trimethylolpropane, and / or polyamines, in particular diamines, aliphatic, cycloaliphatic and / or aromatic having especially 3 to 50 carbon atoms, such as ethylenediamine or hexamethylenediamine, and at least one (meth) acrylic acid ester and a diol or polyol having 2 to 20 carbon atoms, preferably 2 to 6 atoms carbon, such as 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate and glycerol methacrylate.

Such polyurethanes / polyureas with acrylate groups are marketed for example under the designation SR 368 (tris (2-hydroxyethyl) isocyanurate triacrylate) or Craynor ^® 435 by Cray Valley or under the name EBECRYL ^® by the company UCB (EBECRYL ^® 210: molar mass 1500, 2 acrylate functions per molecule, EBECRYL ^® 230: 5000 molar mass, 2 acrylate functions per molecule,

EBECRYL ^® 270: 1500 molar mass, 2 acrylate functions per molecule, EBECRYL ^® 8402: 1000 molar mass, 2 acrylate functions per molecule, EBECRYL ^® 8804: 1300 molar mass, 2 acrylate functions per molecule, EBECRYL ^® 220: 1000 molar mass, 6 acrylate functions per molecule, EBECRYL ^® 2220: 1200 molar mass, 6 acrylate functions per molecule, EBECRYL ^® 1290: 1000 molar mass, 6 acrylate functions per molecule, EBECRYL ^® 800: 800 molar mass, 6 acrylate functions per molecule). Mention may also be water-soluble aliphatic diacrylate polyurethanes sold under the names Ebecryl ^® 2000,

EBECRYL ^® 2001 and EBECRYL ^® 2002, and the polyurethanes diacrylate in aqueous dispersion marketed under the trade names IRR ^® 390, IRR ^® 400, IRR ^® 422 IRR ^® 424 by the company UCB.

polyethers with (meth) acrylate groups obtained by esterification, with (meth) acrylic acid, terminal hydroxyl groups of homopolymers or copolymers of alkylene glycols C _1-4 , such as polyethylene glycol, polypropylene glycol, copolymers d ethylene oxide and propylene oxide preferably having a weight average molecular weight of less than 10,000, polyethoxylated or polypropoxylated trimethylolpropane. Polyoxyethylene di (meth) acrylate of suitable molar mass are sold for example under the names SR 259, SR 344, SR 610, SR 210, SR 603 and SR 252 by the company CRAY.

VALLEY or under the name EBECRYL ^® 11 by UCB. Polyethoxylated trimethylolpropane triacrylates are marketed for example under the names SR 454, SR 498, SR

502, SR 9035, SR 415 by the company CRAY VALLEY or under the name EBECRYL ^® 160 by the company UCB. Polypropoxylated trimethylolpropane triacrylates are sold, for example, under the names SR 492 and SR 501 by the company CRAY.

VALLEY, e) epoxyacrylates obtained by reaction between at least one diepoxide chosen for example from: (i) diglycidyl ether of bisphenol A (ii) a diepoxy resin resulting from the reaction between the diglycidyl ether of bisphenol A and the epichlorohydrin, (iii) an epoxy ester resin with α, ω-diepoxy ends resulting from the condensation of a dicarboxylic acid having from 3 to 50 carbon atoms with a stoichiometric excess of (i) and / or (ii),

(iv) an epoxy ether resin having α, ω-diepoxy ends resulting from the condensation of a diol having from 3 to 50 carbon atoms with a stoichiometric excess of (i) and / or (ii), (v) natural oils or synthetic having at least 2 epoxide groups, such as epoxidized soybean oil, epoxidized linseed oil and epoxidized vernonia oil,

(vi) a phenol-formaldehyde polycondensate (resin Novolac ^®), the ends and / or side groups have been epoxidized, and one or more carboxylic acids or polycarboxylic acids having at least one ethylenic double bond in α, β of the carboxylic group such as (meth) acrylic acid or crotonic acid or esters of (meth) acrylic acid and a diol or polyol having 2 to 20 carbon atoms, preferably 2 to 6 carbon atoms such as 2-hydroxyethyl (meth) acrylate.

Such polymers are sold, for example under the names SR 349, SR 601, CD 541, SR 602, SR 9036, SR 348, CD 540, SR 480, 9038 CD by Cray Valley under the EBECRYL denominations ^® 600 and EBECRYL ^® 609, EBECRYL ^® 150, EBECRYL ^® 860, EBECRYL ^® 3702 by UCB and under the names PHOTOMER ^® 3005 and PHOTOMER ^® 3082 by the company HENKEL.

f) poly (meth) acrylates of C _1-50 alkyl, said alkyl being linear, branched or cyclic, comprising at least two functions with ethylenic double bond borne by the side and / or terminal hydrocarbon chains.

Such copolymers are marketed for example under the names IRR ^® 375 ATO ^® 480 and EBECRYL ^® 2047 by UCB.

g) polyolefins such as polybutene, polyisobutylene; h) perfluoropolyethers containing acrylate groups obtained by esterification, for example with (meth) acrylic acid, of perfluoropolyethers bearing lateral and / or terminal hydroxyl groups.

Such perfluoropolyethers α, ω-diols are described in particular in EP-A-

1057849 and are marketed by the company AUSIMONT under the name FOMBLIN ^® Z DIOL i) hyperbranched dendrimers and polymers bearing (meth) acrylate or (meth) acrylamide end groups respectively obtained by esterification or amidification of dendrimers and hyperbranched polymers with terminal functions hydroxyl or amino, with (meth) acrylic acid. Dendrimers (from the Greek dendron = tree) are polymeric molecules

"tree", that is to say, very ramified invented by DA Tomalia and his team in the early 90s (Donald A. Tomalia et al., Angewandte Chemie, Int.English Ed., vol 29, No. 2, pp. 138-175). These are structures built around a generally versatile central pattern. Around this central motif are chained, according to a perfectly determined structure, branched chain extension units thus giving rise to symmetrical, monodisperse macromolecules having a well-defined chemical and stereochemical structure. Polyamidoamine dendrimers are sold for example under the name Starburst ^® by the company

DENDRITECH. The hyperbranched polymers are polycondensates, generally of polyester, polyamide or polyethyleneamine type, obtained from multifunctional monomers, which have a tree structure similar to that of the dendrimers but much less regular than this one (see for example WO-A-93). / 17060 and WO

96/12754).

The company PERSTORP markets under the name BOLTORN ^® hyperbranched polyesters. Can be found under the name ^® COMBURST the company DENDRITECH hyperbranched polyethylene amines. Hyperramified poly (esteramide) with hydroxyl ends are marketed by DSM under the trade name HYBRAN E ^® .

These dendrimers and hyperbranched polymers esterified or amidified with acrylic and / or methacrylic acid are distinguished from the polymers described under points a) to h) above by the very large number of ethylenic double bonds present. This high functionality, most often greater than 5, makes them particularly useful by allowing them to play a role of "crosslinking node", that is to say of multiple crosslinking site.

These dendritic and hyperbranched polymers can thus be used in combination with one or more of the polymers and / or oligomers a) to h) above.

1a Additional reactive compounds

According to one embodiment, the compositions comprising compound X and / or Y may further comprise an additional reactive compound, such as organic or inorganic particles comprising at their surface at least 2 unsaturated aliphatic groups, for example treated silicas. on the surface, for example, with silicone compounds with vinyl groups such as, for example, cyclotetramethyltetravinylsiloxane treated silica, silazane compounds such as hexamethyldisilazane.

1 b Catalyst The hydrosilylation reaction is advantageously carried out in the presence of a catalyst which may be present in one or other of the compositions comprising compound X and / or compound Y or in a separate composition, the catalyst preferably being platinum or tin base. There may be mentioned, for example, platinum catalysts deposited on a silica gel or charcoal powder (charcoal) support, platinum chloride, platinum and chloroplatinic acid salts.

The chloroplatinic acids are preferably used in hexahydrate or anhydrous form, which is easily dispersible in organosilicone media. Platinum complexes such as those based on chloroplatinic acid hexahydrate and divinyl tetramethyldisiloxane may also be mentioned. The catalyst may be present in one or the other of the compositions useful in the present invention in a content ranging from 0.0001%. at 20% by weight relative to the total weight of the composition comprising it.

Polymerization inhibitors or retarders, and more particularly catalyst inhibitors, may also be introduced into the compositions of the invention, in order to increase the stability of the composition over time or to retard the polymerization. In a nonlimiting manner, mention may be made of cyclic polymethylvinylsiloxanes, and in particular tetravinyl tetramethylcyclotetrasiloxane, acetylenic alcohols, which are preferably volatile, such as methylisobutynol.

The presence of ionic salts, such as sodium acetate, in one and / or the other of the first and second compositions may influence the rate of polymerization of the compounds.

As an example of a combination of compounds X and Y reacting by hydrosilylation, mention may be made of the following references proposed by Dow Corning: DC 7-9800 Soft Skin Adhesive Parts A & B, as well as mixtures A and B following products prepared by Dow Corning:

MIXING TO:

MIXING B:

Advantageously, the compounds X and Y are chosen from silicone compounds capable of reacting by hydrosilylation; in particular, compound X is chosen from polyorganosiloxanes comprising units of formula (I) described above and compound Y is chosen from organosiloxanes comprising alkylhydrogenosiloxane units of formula (III) described above. According to one particular embodiment, the compound X is a polydimethylsiloxane with terminal vinyl groups, and the compound Y is methylhydrogensiloxane. More preferably, the compound X carries at least one polar group.

2 / X and Y compounds likely to react by condensation

According to this embodiment, compounds X and Y are capable of reacting by condensation, either in the presence of water (hydrolysis) by reaction of 2 compounds bearing alkoxysilane groups, or by so-called "direct" condensation by reaction of a compound carrier group (s) alkoxysilane (s) and a silanol group (s) carrier compound (s) or by reaction of 2 silanol group (s) bearing compounds (s). When the condensation is done in the presence of water, it can be in particular the ambient humidity, the residual water of the eyelashes, or the water brought by an external source, for example by prior moistening of the eyelashes (for example by a fogger, natural or artificial tears).

In this condensation reaction mode, the compounds X and Y, which are identical or different, may therefore be chosen from silicone compounds whose main chain comprises at least two alkoxysilane groups and / or at least two silanol groups (Si-OH), side and / or at the end of the chain.

According to one embodiment, the compound X and / or the compound Y carries at least one polar group, as described above, capable of forming at least one hydrogen bond with the eyelashes.

According to an advantageous embodiment, the compounds X and / or Y are chosen from polyorganosiloxanes comprising at least two alkoxysilane groups. By "alkoxysilane" group is meant a group comprising at least a portion -Si-OR, R being an alkyl group comprising from 1 to 6 carbon atoms. The compounds X and Y are in particular chosen from polyorganosiloxanes comprising alkoxysilane end groups, more specifically those which comprise at least 2 terminal alkoxysilane groups, preferably terminal trialkoxysilanes.

These compounds X and / or Y preferably comprise mainly units of formula

^(IV) wherein R ⁹ is independently a radical selected from alkyl groups comprising from 1 to 6 carbon atoms, phenyl, fluorinated alkyl groups, and S is 0, 1, 2 or 3. Preferably, R ⁹ independently represents an alkyl group having from 1 to 6 carbon atoms. As alkyl group, there may be mentioned in particular methyl, propyl, butyl, hexyl and mixtures thereof, preferably methyl or ethyl. As the fluoroalkyl group, 3,3,3-trifluoropropyl may be mentioned.

According to a particular embodiment, the compounds X and Y, which are identical or different, are polyorganosiloxanes comprising units of formula

in which R ⁹ is as described above, preferably R ⁹ is a methyl radical, and f is in particular such that the polymer has a viscosity at 25 ° C ranging from 0.5 to 3000 Pa · s, preferably ranging from from 5 to 150 Pa s, for example f can range from 2 to 5000, preferably from 3 to 3000, more preferably from 5 to 1000.

These compounds X and Y polyorganosiloxanes comprise at least 2 terminal trialkoxysilane groups per polymer molecule, said groups having the following formula

^{λ o X} (Vl)

in which the R radicals independently represent a methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl or isobutyl group, preferably a methyl or ethyl group,

R ¹ is a methyl or ethyl group, x is equal to 0 or 1, preferably x is equal to 0 and Z is chosen from: divalent hydrocarbon groups not containing ethylenic unsaturation and comprising from 2 to 18 carbon atoms (Alkylene groups), the combinations of divalent hydrocarbon radicals and siloxane segments of formula (IX) below:

S? HTP

43- (SiOVSi-G-

.. * ^K (IX) wherein R ⁹ is as described above, G is a divalent hydrocarbon radical containing no ethylenic unsaturation and containing 2 to 18 carbon atoms and c is an integer ranging from 1 to 6.

Z and G may be chosen in particular from alkylene groups such as ethylene, propylene, butylene, pentylene, hexylene, arylene groups such as phenylene

Preferably, Z is an alkylene group, and better ethylene. These polymers may have, on average, at least 1.2 trialkoxysilane end groups or terminal chains per molecule, and preferably on average at least 1.5 trialkoxysilane end groups per molecule. Since these polymers may have at least 1, 2 trialkoxysilane end groups per molecule, some may comprise other types of end groups such as terminal groups of formula CH ₂ = CH-SiR ⁹ ₂ - or of formula R ⁶ ₃ - Si- wherein R ⁹ is as defined above and each R ⁶ group is independently selected from R ⁹ or vinyl. Examples of such end groups include trimethoxysilane, triethoxysilane, vinyldimethoxysilane and vinylmethyloxyphenylsilane groups.

Such polymers are described in particular in US Pat. No. 3,175,993, US Pat. No. 4,772,675, US Pat. No. 4,871,827, US Pat. No. 4,888,380, US Pat. No. 4,898,910, US Pat. No. 4,906,719 and US Pat. No. 4,962,174, the contents of which are incorporated by reference. to the present application.

As compound X and / or Y, in particular, the polymer of formula

Ri _x ≠ R.9 OJ _X

(VU)

wherein R, R ¹ , R ⁹ , Z, x and f are as described above. Compounds X and / or Y may also comprise a polymer mixture of formula (VII) above with polymers of formula (VIII) below:

_R 9 _R 9 _R 9 _R l

CΗ2 ^≈ CH-SiO (SiO> Si-5r) (OR) 3 _x

R? R ^ R9

(VIN) wherein R, R ¹ , R ⁹ , Z, x and f are as described above. When the compound X and / or Y polyorganosiloxanes with alkoxysilane group (s) comprises such a mixture, the various polyorganosiloxanes are present in contents such that the terminal organosilyl chains represent less than 40%, preferably less than 25% by weight. number of terminal strings Particularly preferred compounds X and / or Y polyorganosiloxanes are those of formula (VII) described above. Such compounds X and / or Y are described, for example, in WO 01/96450.

According to a preferred embodiment, the compounds X and Y represent a mixture of polydimethylsiloxanes containing methoxysilane groups.

As indicated above, the compounds X and Y may be the same or different.

According to one variant, one of the two reactive compounds X or Y is of a silicone nature and the other is of organic nature. For example, the compound X is chosen from organic oligomers or polymers or oligomers or hybrid organic / silicone polymers, said polymers or oligomers comprising at least two alkoxysilane groups and Y is chosen from silicone compounds such as the polyorganosiloxanes described above. In particular, the oligomers or organic polymers are chosen from vinyl, (meth) acrylic, polyesters, polyamides, polyurethanes and / or polyureas, polyethers, polyolefins, perfluoropolyethers, dendrimers and organic hyperbranched polymers, and mixtures thereof.

According to one embodiment, the compound X of organic nature or organic hybrid nature / silicone carries at least one polar group, as described above, capable of forming at least one hydrogen bond with the eyelashes.

The organic polymers of vinyl nature or (meth) acrylic, bearing alkoxysilane side groups, may in particular be obtained by copolymerization of at least one vinyl organic monomer or (meth) acrylic with a (meth) acryloxypropyltrimethoxysilane, a vinyl trimethoxysilane, a vinyltriethoxysilane, an allyltrimethoxysilane etc.

For example, mention may be made of the (meth) acrylic polymers described in the KUSABE document. M, Pitture e Verniei - European Coating; 12-B, pages 43-49, 2005, and in particular the alkoxysilane polyacrylates referenced Kaneka MAX or those described in the publication PROBSTER, M, Adhesion-Kleben & Dichten, 2004, 481 (1-2), pages 12 -14. The organic polymers resulting from a polycondensation or a polyaddition, such as polyesters, polyamides, polyurethanes and / or polyureas, polyethers, and bearing side and / or terminal alkylsilane groups, may result for example from the reaction of a oligomeric prepolymer as described above with one of the following silane co-reactants bearing at least one alkoxysilane group: aminopropyltrimethoxysilane, aminopropyltriethoxysilane, aminoethylaminopropyltrimethoxysilane, glycidoxypropyltrimethoxysilane, glycidoxypropyltriethoxysilane, epoxycyclohexylethyltrimethoxysilane, mercaptopropyltrimethoxysilane. Examples of polyethers and polyisobutylenes with alkoxysilane groups are described in the KUSABE publication. M., Pitture e Verniei - European Coating; 12-B, pp. 43-49, 2005. Examples of polyurethanes with terminal alkoxysilane groups include those described in PROBSTER, M., Adhesion-Kleben & Dichten, 2004, 481 (1-2), p.12 -14 or those described in the document LANDON, S., Pitture e Verniei vol. 73, No. 11, pages 18-24, 1997 or in the document HUANG, Mowo, Pitture e Verniei Vol. 5, 2000, pages 61-67, there may be mentioned polyurethanes alkoxysilane groups of OSI-WITCO-GE.

As compounds X and / or Y polyorganosiloxane, there may be mentioned resins of MQ or MT type itself bearing alkoxysilane ends and / or silanols such as poly (isobutylsilsesquioxane) resins functionalized with silanol groups proposed under the reference SST-S7C41 (3 Si-OH groups) by Gelest.

2a Additional reactive compound

One of the compositions useful in the present invention may further comprise an additional reactive compound comprising at least two alkoxysilane or silanol groups. Mention may be made, for example, of organic or inorganic particles comprising, on their surface, alkoxysilane and / or silanol groups, for example fillers surface-treated with such groups.

2b Catalyst

The condensation reaction can be carried out in the presence of a metal-based catalyst which may be present in one or other of compositions comprising X and / or Y or in a separate composition. The catalyst useful in this type of reaction is preferably a titanium-based catalyst.

There may be mentioned catalysts based on tetraalkoxytitanium of formula

wherein R ² is selected from tertiary alkyl radicals such as tert-butyl, tert-amyl and 2,4-dimethyl-3-pentyl; R ³ represents an alkyl radical comprising from 1 to 6 carbon atoms, preferably an ethyl methyl, n-propyl, isopropyl, n-butyl, sec-butyl or hexyl group and y is a number ranging from 3 to 4, more preferably 3,4 to 4.

The catalyst may be present in one or other of the compositions useful in the present invention in a content ranging from 0.0001% to 20% by weight relative to the total weight of the composition or compositions containing it.

By way of example of a combination of compounds X and Y bearing alkoxysilane groups and reacting by condensation, mention may be made of the following mixtures A 'and B' prepared by Dow Corning:

Mixture A ':

Mix B ':

It should also be noted that the identical compounds X and Y are combined in the mixture A '.

3 / Crosslinking in the presence of peroxide:

This reaction is preferably carried out by heating at a temperature greater than or equal to 50 ° C, preferably greater than or equal to 80 ° C, up to 120 ° C. The compounds X and Y, which are identical or different, comprise in this case at least two -CH 3 side groups and / or at least two side-chains carrying a -CH 3 group.

The compounds X and Y are preferably silicone and may be chosen, for example, from high molecular weight non-volatile linear polydimethylsiloxanes having a degree of polymerization of greater than 6 having at least two -CH 3 side groups bonded to the silicon atom and / or at least two side chains carrying a group -CH3. Mention may be made, for example, of the polymers described in the "Reactive Silicone" Catalog of Gelest Inc., Edition 2004, page 6, and in particular the copolymers (also called gums) of vinylmethylsiloxane-dimethylsiloxane with molecular weights ranging from 500,000 to 900. And viscosity greater than 2,000,000 cSt.

Peroxides that can be used in the context of the invention include benzoyl peroxide, 2,4-dichlorobenzoyl peroxide and mixtures thereof.

According to one embodiment, the hydrosilylation reaction or the condensation reaction or else the crosslinking reaction in the presence of a peroxide between compounds X and Y is accelerated by a heat input by raising, for example, the temperature of the system. between 25 ° C and 180 ° C. The system will react in particular on the eyelashes.

In general, regardless of the type of reaction by which compounds X and Y react together, the molar percentage of X relative to all compounds X and Y, ie the ratio X / (X + Y) x 100, may range from 5% to 95%, preferably from 10% to 90%, more preferably from 20% to 80%. Similarly, the molar percentage of Y relative to the set of compounds X and Y, ie the ratio Y / (X + Y) × 100, can vary from 5% to 95%, preferably from 10% to 90%, more preferably from 20% to 80%. Compound X may have a weight average molecular weight

(Mw) ranging from 150 to 1,000,000, preferably from 200 to 800,000, more preferably from 200 to 250,000.

Compound Y can have a weight average molecular weight (Mw) of from 200 to 1,000,000, preferably from 300 to 800,000, more preferably from 500 to 250,000.

The compound X can represent from 0.5% to 95% by weight relative to the total weight of the composition comprising it, in particular with respect to the total weight of each first or second composition, preferably from 1% to 90% and better from 5% to 80% by weight.

The compound Y may represent from 0.05% to 95% by weight relative to the total weight of the composition comprising it, in particular with respect to the total weight of each first or second composition, preferably from 1% to 90% and better from 5% to 80% by weight.

The ratio between the compounds X and Y may be varied so as to modulate the reaction rate and therefore the film formation rate or in such a way as to adapt the properties of the film formed (for example its adhesive properties) according to the desired application. .

In particular, the compounds X and Y may be present in a molar X / Y ratio ranging from 0.05 to 20 and better still from 0.1 to 10.

According to one embodiment, one or less of the compositions may comprise at least one silica, in particular a synthetic silica surface-treated with a hydrophobic agent (preferably a silicone agent), in particular a surface-treated pyrogenic silica, such as for example the silicas described below in the fillers or gelling agents By way of example, mention may be made of the treated fillers Cab-O-Sil® TS-530, Aerosil® R8200 and Wacker HDX H2000.

II / OILS

At least one of the first and second compositions comprises at least one silicone oil. By oil or organic solvent is meant a non-aqueous fatty substance that is liquid at ambient temperature and atmospheric pressure. The silicone oil (s) may be present in a content ranging from 0.5% to 90% by weight, preferably from 5% to 80% by weight, better still from 10% to 60% by weight and even more preferably from 10% to 50% by weight. by weight relative to the total weight, each composition comprising them in particular relative to the total weight of each first or second composition.

The silicone oil may be chosen from volatile oils and / or non-volatile oils, and mixtures thereof.

For the purposes of the invention, the term "volatile oil" means an oil capable of evaporating on contact with the eyelashes in less than one hour at ambient temperature and atmospheric pressure. The volatile organic solvent (s) and the volatile oils of the invention are organic solvents and volatile cosmetic oils which are liquid at ambient temperature and have a non-zero vapor pressure at ambient temperature and atmospheric pressure, in particular ranging from 0 to 13 Pa at 40,000 Pa (10 ^"3 at 300 mm Hg), in particular ranging from 1.3 Pa to 13 000 Pa (0.01 to 100 mm Hg), and more particularly ranging from 1.3 Pa. at 1300 Pa (0.01 to 10 mmHg) In particular, the volatile oils are chosen from oils having an evaporation rate of greater than or equal to 0.002 mg / cm 2 / min, the evaporation rate being measured as follows:

In a crystallizer (diameter: 7 cm) placed on a balance in a chamber of about 0.3 rcm, regulated in temperature (25.degree. C.) and humidity (relative humidity 50%), 15 g of oil are introduced. of the mixture of oils to be tested. The liquid is allowed to evaporate freely, without stirring, providing ventilation by a fan (speed of rotation 2700 revolutions / minute and dimensions 80 × 80 × 42 mm, for example the reference 8550 N of PAPST-MOTOREN, the flow corresponds to approximately 50 m 3 / hour) placed vertically above the crystallizer containing the solvent, the blades being directed to the crystallizer and at a distance of 20 cm 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 (cm 2) and per unit of time (minute).

By "non-volatile oil" is meant an oil remaining on the eyelashes at room temperature and atmospheric pressure for at least several hours and having in particular a vapor pressure of less than 10 ^-3 mmHg (0.13 Pa). As volatile silicone oils, for example volatile linear or cyclic silicone oils, in particular those having a viscosity of <8 centistokes (8 × 10 ^-6 m ² / s), and especially comprising from 2 to 7 silicon atoms, these silicones comprising optionally, alkyl or alkoxy groups having from 1 to 10 carbon atoms As volatile silicone oil that can be used in the invention, mention may be made in particular of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane and the like. heptamethyloctyltrisiloxane, hexamethyl disiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane and mixtures thereof.

It is also possible to mention volatile alkyltrisiloxane linear oils of general formula (I):

where R represents an alkyl group comprising from 2 to 4 carbon atoms and one or more hydrogen atoms of which may be substituted by a fluorine or chlorine atom. Among the oils of general formula (I), mention may be made of: 3-butyl 1, 1, 1, 3, 5, 5, 5-heptamethyltrisiloxane, 3-propyl 1, 1, 1, 3,5,5 , 5-heptamethyl trisiloxane, and 3-ethyl 1,1,1,5,5,5,5-heptamethyltrisiloxane, corresponding to the oils of formula (I) for which R is respectively a butyl group, a propyl group or a ethyl group.

According to a particular embodiment, at least one of the compositions comprises at least one volatile silicone oil chosen from linear silicone oils comprising in particular from 2 to 7 silicon atoms, such as hexamethyl disiloxane, octamethyl trisiloxane and cyclic silicones. such as octamethylcyclotetrasiloxane, decamethylclopentasiloxane and mixtures thereof.

According to one embodiment, the first and second compositions each comprise a volatile silicone oil, preferably a cyclic silicone such as, for example, decamethylcyclopentasiloxane. According to one embodiment, at least one of the compositions comprises the combination of at least one linear volatile silicone oil and at least one cyclic volatile silicone oil, as described above.

The volatile silicone oils may represent from 0.5 to 50%, preferably from 5 to 40% by weight, and preferably from 10 to 30% by weight relative to the total weight of the composition comprising them, in particular with respect to the total weight of each or second composition.

The non-volatile silicone oils that may be used in the composition according to the invention may be non-volatile polydimethylsiloxanes (PDMS), polydimethylsiloxanes comprising alkyl or alkoxy groups, during and / or at the end of the silicone chain, groups each having from 2 to 24 carbon atoms, phenyl silicone oils such as phenyl trimethicones, phenyl dimethicones, phenyl trimethylsiloxy diphenylsiloxanes, diphenyl dimethicones, diphenyl methyldiphenyl trisiloxanes, 2-phenylethyl trimethylsiloxysilicates;

The fluorinated oils that can be used in the invention are in particular fluorosilicone oils, fluorinated polyethers and fluorinated silicones as described in document EP-A-847752.

According to one embodiment, at least one of the compositions, preferably the first composition, comprises at least one non-volatile silicone oil and preferably a phenyl silicone oil, preferably having a viscosity of less than 500 cSt at 25 ° C.

According to one embodiment, each of the compositions comprises a non-volatile silicone oil, preferably a phenyl silicone oil.

The phenyl silicone oils that can be used according to the present invention have a viscosity measured at 25 ° C. and atmospheric pressure ranging from 5 to 100,000 cSt, and preferably from 5 to 10,000 cSt.

The silicone oil may be for example a phenyl trimethicone, a phenyl dimethicone, a phenyl trimethylsiloxy diphenylsiloxane, a diphenyl dimethicone, a diphenyl methyldiphenyl trisiloxane, or a mixture of different phenyl silicone oils, and in particular can satisfy the following formula (A):

in which

R ₉ and R ₁₂ are each independently a C ₁ -C ₃₀ alkyl radical, an aryl radical or an aralkyl radical,

R ₁₀ and R ₁₁ are each independently a C ₁ -C ₂₀ alkyl radical or an aralkyl radical,

u, v, w and x are each independently integers from 0 to 900, provided that the sum v + w + x is different from 0 and that the sum u + v + w + x is from 1 to 900 in particular, u + v + w + x is from 1 to 800.

Advantageously, R ₉ is a C ₁ -C ₂₀ alkyl radical, a phenyl radical or an aralkyl radical of the R'-C ₆ H _{5 type} , R 'being a C ₁ -C ₅ alkyl, R ₁₀ and R ₁₁ are each independently a C ₁ -C ₂₀ alkyl radical or an aralkyl radical of the R'-CβHs type, R 'being a C ₁ -C ₅ alkyl, and R ₁₂ is a C ₁ -C ₂₀ alkyl radical.

Preferably, R ₉ is a methyl, ethyl, propyl, isopropyl, decyl, dodecyl or octadecyl radical, or else a phenyl, tolyl, benzyl or phenethyl radical, R ₁₀ and R ₁₁ are each independently a methyl, ethyl or propyl radical, isopropyl, decyl, dodecyl or octadecyl, or a tolyl, benzyl or phenethyl radical, and R ₁₂ is a methyl, ethyl, propyl, isopropyl, decyl, dodecyl or octadecyl radical.

According to a particular embodiment of the invention, the composition or compositions contain a phenyl silicone oil having a viscosity of less than 500 cSt at 25 ° C., called a "low viscosity phenyl silicone oil", and a phenyl silicone oil having a viscosity. at least 500 cSt at 25 ° C, called "Phenyl silicone oil of high viscosity". Advantageously, the low-viscosity phenyl silicone oil has a viscosity at 25 ° C. ranging, for example, from 5 to 499 cSt, preferably from 5 to 300 cSt, and better still from 5 to 100 cSt, and the high phenyl silicone oil. The viscosity exhibits a viscosity at 25 ° C ranging for example from 500 to 10,000 cSt, preferably from 600 to 5,000 cSt, and more preferably from 600 to 3,000 cSt.

The use of phenyl silicone oils of low and high viscosities as defined above makes it possible, after deposition on the eyelashes, to obtain a film of particularly brilliant, homogeneous and good-holding composition.

Preferably, these phenyl silicone oils of low and high viscosities satisfy the formula (A). Preferably, the first low viscosity phenyl silicone oil satisfies the formula (A) with the sum u + v + w + x ranging from 1 to 150, and better still from 1 to 100, or even from 1 to 50, and the second oil phenyl silicone of high viscosity satisfies the formula (A) with the sum u + v + w + x ranging from 151 to 900, better from 160 to 800, or even from 160 to 500.

In particular, the low viscosity phenyl silicone oil satisfies formula (III)

. Rs is a C ₁ -C 30 alkyl radical, an aryl radical, or an aralkyl radical, n is an integer from 0 to 100, and better, less than 100, m is an integer from 0 to 100, with the proviso that the sum m + n is 1 to 100, and more preferably less than 100. Advantageously, R ₈ is C ₁ -C ₂ 0 alkyl, phenyl radical or an aralkyl radical of the type R'-CβHs, R 'being a C ₁ -C 5.

Preferably, R ₈ is a methyl, ethyl, propyl, isopropyl, decyl, dodecyl or octadecyl radical, or a phenyl, tolyl, benzyl or phenethyl radical. Advantageously, R ₈ is a methyl radical.

Among the low viscosity phenyl silicone oils that can be used in the invention, mention may be made of Dow Corning oils DC556 (22.5 cSt), SF558 (10-20 cSt), and Abil AV8853 (4-6 cSt) oil. Goldschmidt, Rhône Poulenc Silbione 70 633 V 30 (28 cSt) oil, 15 M 40 (50 to 100 cSt) oils, 15 M 50 (20 to 25 cSt) PCR, SF 1550 oils (25 is) , PK 20 (20 cSt) from Bayer, Belsil PDM 200 (200cst) from Wacker, KF 53 (175 cSt), KF 54 (400 cSt) and KF 56 (14 cSt) from Shin-Etsu. Among the high viscosity phenyl silicone oils that can be used in the invention, mention may be made of Wacker's 15 M 30 PCR oils (500 cSt) or Belsil PDM 1000 (1000 cSt). Values in parentheses represent viscosities at 25 ° C.

The weight ratio between the low viscosity phenyl silicone oil and the high viscosity phenyl silicone oil may range, for example, from 70/30 to 30/70 and more preferably from 60/40 to 40/60.

According to one embodiment, each composition, and in particular each of the first and second compositions, comprises at least one phenylated low silicone oil and at least one high viscosity phenyl silicone oil.

The non-volatile silicone oils may represent from 0.5 to 80%, preferably from 5 to 70%, better still from 10 to 60% and better still, from 20 to 50% of the total weight of the composition comprising them, in particular by relative to the total weight of each first or second composition ,.

Additional oil

The composition or compositions may comprise, in addition to the silicone oil or oils, at least one so-called additional oil. The oil may be chosen from volatile oils and / or non-volatile oils, and their mixtures.

The additional oil (s) may be present in a content ranging from 0.1% to 90% by weight, preferably from 0.5% to 80% by weight, better still from 1% to 60% by weight and even more preferably from 1% to 55% by weight relative to the total weight of each composition comprising them, in particular with respect to the total weight of each first or second composition. These oils may especially be hydrocarbon oils, fluorinated oils, or mixtures thereof. These oils can be volatile or nonvolatile.

The term "hydrocarbon-based oil" means an oil containing mainly hydrogen and carbon atoms and optionally oxygen, nitrogen, sulfur and phosphorus atoms. The volatile hydrocarbon oils may be chosen from hydrocarbon-based oils having 8 to 16 carbon atoms, and especially 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, branched esters C8-C16 neopentanoate isohexyl, and mixtures thereof. Other volatile hydrocarbon oils such as petroleum distillates, especially those sold under the name Shell SoIt by Shell, can also be used. Preferably, the volatile solvent is chosen from volatile hydrocarbon oils having from 8 to 16 carbon atoms and mixtures thereof. It is also possible to use volatile fluorinated solvents such as nonafluoromethoxybutane or perfluoromethylcyclopentane.

The composition or the compositions may also comprise at least one non-volatile oil, especially chosen from non-volatile hydrocarbon and / or fluorinated oils.

Non-volatile hydrocarbon oils that may especially be mentioned include: hydrocarbon-based oils of plant origin, such as esters of fatty acids and of glycerol, the fatty acids of which can have various chain lengths of C4 to C24, the latter being able to be 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, passionflower, rose hip; or the caprylic / capric acid triglycerides, 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,

synthetic ethers having from 10 to 40 carbon atoms;

linear or branched hydrocarbons of mineral or synthetic origin, such as petroleum jelly, polybutenes, 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;

at room temperature liquids with a branched and / or unsaturated carbon chain having from 12 to 26 carbon atoms, such as octyl dodecanol, isostearyl alcohol, oleic alcohol, 2-hexyldecanol or 2-butyloctanol, 2- undecylpentadecanol;

higher fatty acids such as oleic acid, linoleic acid, linolenic acid;

- carbonates,

- acetals, - citrates,

- and their mixtures.

The fluorinated oils that can be used in the invention are in particular fluorosilicone oils, fluorinated polyethers and fluorinated silicones as described in document EP-A-847752. According to one embodiment, the first and second compositions used in the process according to the invention are anhydrous. By "anhydrous" is meant a composition comprising less than 5% by weight of water, preferably less than 3% by weight of water relative to the total weight of each composition, and better free of water.

Aqueous phase

At least one of the compositions, particularly first and second compositions, may comprise an aqueous phase.

The aqueous phase may consist essentially of water; it may also comprise a mixture of water and of a water-miscible solvent (miscibility in water greater than 50% by weight at 25 ° C.), such as lower monoalcohols having from 1 to 5 carbon atoms, such as ethanol, isopropanol, glycols having 2 to 8 carbon atoms such as propylene glycol, ethylene glycol, 1,3-butylene glycol, dipropylene glycol, C3-C4 ketones, C2 aldehydes; C4 _e t | _eur- mixtures

The aqueous phase (water and optionally the water-miscible solvent) may be present in a content ranging from 5 to 95% by weight relative to the total weight of each composition, preferably from 10% to 85% by weight and better from 2 to 80% by weight

Wax

At least one of the compositions, in particular, first and second compositions may also comprise at least one wax which may be of animal, vegetable, mineral or synthetic origin.

The wax considered in the context of the present invention is generally a lipophilic compound, solid at room temperature (25 ° C.), with reversible solid / liquid state change, having a melting point greater than or equal to 30 ° C. ° C up to 120 ° C. By bringing the wax to the liquid state (fusion), it is possible to make it miscible with oils and to form a homogeneous mixture microscopically, but by reducing the temperature of the mixture at room temperature gives a recrystallization of the wax in the oils of the mixture.

In particular, the waxes that are suitable for the invention may have a melting point greater than about 45 °, and in particular greater than 55 ° C. The melting point of the wax may 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 measurement protocol is as follows: A sample of 15 mg of product placed in a crucible is subjected to a first temperature rise from 0 ° C to 120 ° C, to the heating rate of 10 ° C / minute, then is cooled from 120 ° C to 0 ° C at a cooling rate of 10 ° C / minute and finally subjected to a second temperature rise from 0 ° C to 120 ° C at a heating rate of 5 ° C / minute . During the second temperature rise, the variation of the power difference absorbed by the empty crucible and the crucible containing the product sample is measured as a function of the temperature. The melting point of the compound is the value of the temperature corresponding to the peak apex of the curve representing the variation of the difference in power absorbed as a function of the temperature.

The waxes that may be used in the first and second compositions according to the invention are chosen from waxes, solid, deformable or not at room temperature, of animal, vegetable, mineral or synthetic origin, and mixtures thereof.

The wax may also have a hardness of from 0.05 MPa to 30 MPa, and preferably 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. The measurement protocol is as follows:

The wax is melted at a temperature equal to the melting point of the wax + 20 ° C. The melted wax is poured into a container 30 mm in diameter and 20 mm deep. The wax is recrystallized at room temperature (25 ° C) for 24 hours, then the wax is stored for at least 1 hour at 20 ° C before making the hardness measurement. The hardness value is the maximum measured compressive force divided by the surface of the texturometer cylinder in contact with the wax. 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, isomérisée jojoba oil such as trans isomerized partially hydrogenated jojoba oil manufactured or marketed by Desert Whale under the trade reference ISO-JOJOBA-50 ^® , hydrogenated sunflower oil, hydrogenated castor oil, hydrogenated coconut oil and hydrogenated lanolin oil, di- (trimethylol-1, 1, 1 propane) tetrastearate sold under the name " HEST 2T-4S "by the company HETERENE, the tetra-enehenate of di- (trimethylol-1, 1, 1 propane) sold under the name HEST 2T-4B by the company HETERENE. One can also use waxes obtained by transesterification and hydrogenation of vegetable oils, such as castor oil or olive oil, such as waxes sold under the names Phytowax ricin 16L64 and 22L73 ^® ^® and Phytowax Olive 18L57 by the company Sophim. Such waxes are described in application FR-A-2792190.

It is also possible to use silicone waxes, which may advantageously be substituted polysiloxanes, preferably at a low melting point. In particular, these are substituted linear polysiloxanes consisting essentially of (end groups apart) of units of formulas II and III, in the respective molar proportions m and n:

m in which: each substituent R is defined as above,

each R 'independently represents an optionally unsaturated (linear or branched) alkyl, having 6-30 carbon atoms, or a group - X-R ", each X independently representing: -O-,

- (CH 2) aO-CO-, - (CH 2) b -CO-O-, a and b independently represent numbers ranging from 0 to 6, and each R "independently represents an optionally unsaturated alkyl group having 6 to 30 carbon atoms,

m is a number which may vary from 0 to 400, and in particular from 0 to 100,

n is a number which may vary from 1 to 200, and in particular from 1 to 100, the sum (m + n) being less than 400, and in particular less than or equal to 100.

These silicone waxes are known or can be prepared according to known methods. Among the commercial silicone waxes of this type, those sold under the names Abilwax 9800, 9801 or 9810 (GOLDSCHMIDT), KF910 and KF7002 (SHIN ETSU), or 176-11 18-3 and 176-11481 (GENERAL ELECTRIC).

The silicone waxes that may be used may also be chosen from compounds of the following formula:

R-Si (CH ₃₎ 2 -O- [Si (R) 2 -O-] _z -Si (CH ₃₎ 2-R2 wherein:

R is defined as before,

R 1 represents an alkyl group having from 1 to 30 carbon atoms, an alkoxy group having from 6 to 30 carbon atoms, or a group of formula:

R ₂ represents an alkyl group of 6 to 30 C, a an alkoxy group having from 6 to 30 C or a group of formula:

O O

- - (CH ₃ ^ COR ^* oe - (CHjkO-CR "

a and b are 0 to 6, R "is alkyl of 6 to 30 carbon atoms, and z is a number ranging from 1 to 100.

Among the silicone waxes of formula (IV), there may be mentioned in particular alkyl or alkoxydimethicones such as the following commercial products: Abilwax 2428, 2434 and 2440 (GOLDSCHMIDT), or VP 1622 and VP 1621 (WACKER), as well as (C20 -C60) alkyldimethicones, in particular the (C30-C45) alkyldimethicones, such as the silicone wax sold under the name SF-1642 by the company GE-Bayer Silicones.

It is also possible to use hydrocarbon waxes modified with silicone or fluorinated groups such as, for example: siliconyl candelilla, siliconyl beeswax and Fluorobeeswax by Koster Keunen

The waxes may also be chosen from fluorinated waxes.

According to a particular embodiment, the first and second compositions according to the invention may comprise at least one so-called sticky wax that is to say having a tack greater than or equal to 0.7 N.s and a lower hardness or equal to 3.5 MPa.

The tacky wax used may in particular have a tack ranging from 0.7 N to 30 N, in particular greater than or equal to 1 N, in particular ranging from 1 N to 20 N, in particular greater than or equal to 2 N. s, especially ranging from 2 N. s to 10 N. s, and in particular ranging from 2 N. s to 5 N. s. The stickiness of the wax is determined by measuring the evolution of the force (compression force or stretching force) as a function of time, at 20 ° C. using the texturometer sold under the name "TA-TX2i" ^® by the company RHEO, equipped with an acrylic polymer mobile in the form of a 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 stickiness 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 C ₂₀ -C ₄₀ alkyl (hydroxystearyloxy) stearate (the alkyl group comprising from 20 to 40 carbon atoms), alone or as a mixture, in particular a 12- (12'-hydroxystearyloxy) can be used. ) stearate alkyl of C ₂ 0 _C-4 0. such a wax is especially sold under the names "Kester wax K 82 P ^®" and "Kester wax K 80 P ^®" by Koster Keunen. The waxes mentioned above generally have an initial melting point below 45 ° C.

The wax (es) may be present in the form of an aqueous microdispersion of wax. The term "aqueous microdispersion of wax" means an aqueous dispersion of wax particles in which the size, expressed as the average "effective" diameter by volume D [4.3, of said wax particles is less than or equal to about 1 μm. Microdispersions of wax are stable dispersions of colloidal wax particles, and are especially described in "Microemulsions Theory and Practice", LM Prince Ed., Academy 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 μm). 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 waxes may represent from 0.1 to 70% by weight of, based on the total weight of each composition, in particular with respect to the total weight of each first or second composition, better from 1 to 40% and even more preferably from 2 to 30% by weight.

Filmoqene polymer

At least one of the first and second compositions may comprise a film-forming polymer. According to the present invention, the term "film-forming polymer" means a polymer capable of forming on its own or in the presence of an auxiliary film-forming agent, a continuous and adherent film on a support, in particular on the eyelashes.

The film-forming polymer may be present in a solids content (or active materials) ranging from 0.1% to 30% by weight relative to the total weight of each composition, in particular with respect to the total weight of each or second composition, preferably from 0.5% to 20% by weight, and preferably from 1 to

% to 15% by weight.

Among the film-forming polymers that may be used in the compositions of the present invention, mention may be made of synthetic polymers, of radical type or of polycondensate type, polymers of natural origin, and mixtures thereof. By radical-forming film-forming polymer is meant 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 acidic group and / or esters of these acidic monomers and / or amides of these acidic monomers. As monomer bearing an acid group, it is possible to use α, β-ethylenic unsaturated carboxylic acids such as acrylic acid, methacrylic acid, crotonic acid, maleic acid, itaconic acid. 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 (meth) acrylic acid esters (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 can be either fluorinated, is perfluorinated, that is to say that 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 alkyls. Among the N-alkyl (meth) acrylamides, mention may be made of N-ethyl acrylamide, Nt-butyl acrylamide, Nt-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. 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, polyurethane-polyvinylpyrrolidones, polyester-polyurethanes, polyether polyurethanes, polyureas, polyurea polyurethanes, and their polyurethanes. mixtures. 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, acid 1, 3- 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, terephthalic.

The diol may be chosen from aliphatic, alicyclic and aromatic diols. A diol chosen from: ethylene glycol, diethylene glycol, triethylene glycol, 1,3-propanediol, cyclohexane dimethanol and 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.

The polyester may further comprise at least one monomer bearing at least one -SO ₃ M group, with M representing a hydrogen atom, an ammonium ion NH ₄ ⁺ or a metal ion, such as for example an ion Na ⁺ , Li ⁺ , K +, Mg ²⁺ , Ca ²⁺ , Cu ²⁺ , Fe ²⁺ , Fe ³⁺ . In particular, it is possible to use a bifunctional aromatic monomer comprising such a group -SO ₃ M.

The aromatic nucleus of the bifunctional aromatic monomer additionally carrying a group -SO 3 M as described above may be chosen for example from benzene, naphthalene, anthracene, diphenyl, oxydiphenyl, sulfonyldiphenyl and methylenediphenyl nuclei. An example of a bifunctional aromatic monomer also bearing an -SO 3 M group is sulfoisophthalic acid, sulphoterephthalic acid, sulphophthalic acid and 4-sulphonaphthalene-2,7-dicarboxylic acid. It is preferred to use copolymers based on isophthalate / sulphoisophthalate, and more particularly copolymers obtained by condensation of diethylene glycol, cyclohexane di-methanol, isophthalic acid, sulfoisophthalic acid. The polymers of natural origin, optionally modified, may be chosen from shellac resin, sandarac gum, dammars, elemis, copals, cellulosic polymers, and mixtures thereof.

According to a first embodiment of the invention, the film-forming polymer may be a water-soluble polymer and may be present in an aqueous phase of the first and / or second composition; the polymer is solubilized in the aqueous phase of the composition.

According to another variant, the film-forming polymer may be a polymer solubilized in a liquid fatty phase comprising oils or organic solvents such as than those described above (it is said that the film-forming polymer is a fat-soluble 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 / octadecene, vinyl acetate / octadecylvinylether , vinyl propionate / allyl laurate, vinyl propionate / vinyl laurate, vinyl stearate / octadecene-1, vinyl acetate / dodecene-1, vinyl stearate / ethyl vinyl ether, vinyl propionate / cetyl vinyl ether, stearate of vinyl vinyl / allyl acetate, 2,2-dimethyl-2 vinyl octanoate / vinyl laurate, 2,2-dimethyl-2-allyl pentanoate / vinyl laurate, vinyl dimethyl propionate / vinyl stearate, dimethyl allyl propionate / stearate vinyl propionate / vinyl stearate, crosslinked with 0.2% divinyl benzene, vinyl dimethyl propionate / vinyl laurate, cross-linked with 0.2% divinyl benzene, vinyl acetate / octadecyl vinyl ether, crosslinked with 0.2% of tetraal lyloxyethane, vinyl acetate / allyl stearate, crosslinked with 0.2% divinyl benzene, vinyl acetate / octadecene-1 crosslinked with 0.2% divinyl benzene and allyl propionate / allyl stearate cross-linked with 0 2% divinyl benzene.

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 can have a weight average molecular weight ranging from 2,000 to 500,000 and preferably from 4,000 to 200,000. Mention may also be made of liposoluble homopolymers, and in particular those resulting from the homopolymerization of vinyl esters having from 9 to 22 carbon atoms or of alkyl acrylates or methacrylates, the alkyl radicals having from 2 to 24 carbon atoms. carbon. As examples of liposoluble homopolymers, there may be mentioned in particular: vinyl polylaurate and lauryl poly (meth) acrylates, these poly (meth) acrylates being capable of being crosslinked by means of ethylene glycol dimethacrylate or tetraethylene glycol .

According to an advantageous embodiment, the first and / or second composition of the process according to the invention comprises at least one film-forming polymer polyvinyl acetate.

As liposoluble film-forming polymers that can be used in the invention, mention may also be made of polyalkylenes and in particular copolymers of C2-C20 alkenes, such as polybutene, alkylcelluloses with a linear or branched alkyl radical, saturated or otherwise unsaturated, such as 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 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 141 1069 or WO04 / 028488.

The film-forming polymer may also be present in the first and / or second composition in the form of particles in dispersion in an aqueous phase or in a non-aqueous solvent phase, generally known under the name of latex or pseudolatex. The techniques for preparing these dispersions are well known to those skilled in the art. As the aqueous dispersion of film-forming polymer, the dispersions can be used acrylics sold under the names Neocryl XK-90 ^® , Neocryl

A-1070 ^®, Neocryl A-1090 ^®, Neocryl BT-62 ^®, Neocryl A-1079 ^® and Neocryl A-523 ^® by the company Avecia-Neoresins, Dow Latex 432 ^® by the company Dow Chemical, Daitosol 5000 AD ^® or Daitosol 5000 SJ ^® by the company DAITO KASEY KOGYO; Syntran 5760 ^® by the company Interpolymer Allianz OPT by the company Rohm & Haas, aqueous dispersions of acrylic or styrene / acrylic polymers sold under the trade name Joncryl ^® by the company Johnson Polymer, or the aqueous dispersions of polyurethane sold under the denominations Neorez R-981 ^® and Neorez R-974 ^® by the company AVECIANEORESINS, Avalure UR-405 ^® , Avalure UR-410 ^® , Avalure UR-425 ^® , Avalure UR-450 ^® , Sancure 875 ^® , Sancure 861 ^® , Sancure 878 ^® and Sancure 2060 ^® by the company GOODRICH, Impranil 85 ^® by the company BAYER, Aquamere H-151 1 ^® by the company HYDROMER; sulphopolyesters sold under the brand name Eastman AQ ^® by Eastman Chemical Products, vinyl dispersions, Mexomere PAM ^® from Chimex, and mixtures thereof.

Examples of non-aqueous dispersions of film-forming polymer include the acrylic dispersions in isododecane, Mexomer PAP ^® from the company Chimex, particle dispersions of a grafted ethylenic polymer, preferably an acrylic polymer, 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 compositions 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.

Coloring matters

At least one of the first and second compositions used in the process according to the invention may comprise at least one dyestuff chosen, for example, from pigments, nacres, dyes, effect materials and mixtures thereof.

These dyestuffs may be present in a content ranging from 0.01% to 50% by weight, preferably from 0.01% to 30% relative to the weight of each first and second composition or with respect to the total weight of the composition when A and B are present within the same composition.

The pigments useful in the present invention may be in the form of a powder or a pigment paste.

By "dyes" is meant compounds, generally organic, soluble in at least one oil or in a hydroalcoholic phase.

By pigments, it is necessary to include white or colored particles, mineral or organic, insoluble in an aqueous medium, intended to color and / or opacify the resulting film.

By "nacres" or pearlescent pigments, it is necessary to include colored particles of any shape, iridescent or not, in particular produced by certain shellfish in their shell or else synthesized and which exhibit a color effect by optical interference.

The pigment may be an organic pigment. By organic pigment is meant any pigment that meets the definition of the Ullmann encyclopedia in the organic pigment chapter. The organic pigment may especially be chosen from nitroso compounds, nitro, azo, xanthene, quinoline, anthraquinone, phthalocyanine, metal complex type, isoindolinone, isoindoline, quinacridone, perinone, perylene, diketopyrrolopyrrole, thioindigo, dioxazine, triphenylmethane, quinophthalone.

The organic pigment (s) may be chosen, for example, from carmine, carbon black, aniline black, melanine, azo yellow, quinacridone, phthalocyanine blue, sorghum red, and blue pigments codified in the formula. Color Index under the references Cl 42090, 69800, 69825, 73000, 74100, 74160, the yellow pigments coded in the Color Index under the references Cl 1 1680, 1 1710, 15985, 19140, 20040, 21 100, 21 108, 47000, 47005, the green pigments coded in the Color Index under the references Cl 61565, 61570, 74260, the orange pigments coded in the Color Index under the references Cl 11725, 15510, 45370, 71 105, the red pigments codified in the Color Index under references Cl 12085, 12120, 12370, 12420, 12490, 14700, 15525, 15580, 15620, 15630, 15800, 15850, 15865, 15880, 17200, 26100, 45380, 45410, 58000, 73360, 73915, 75470, the pigments obtained by oxidative polymerization of indole derivatives, phenolic as they are jobs described in patent FR 2,679,771. These pigments can also be in the form of composite pigments as described in patent EP 1 184 426. These composite pigments can be composed in particular of particles comprising an inorganic core at least partially covered with an organic pigment and at least one binder ensuring the fixation of organic pigments on the core.

By way of example, mention may also be made of organic pigment pigment pastes such as the products sold by Hoechst under the name:

YELLOW COSMENYL IOG: Pigment YELLOW 3 (Cl 11710);

YELLOW COSMENYL G: Pigment YELLOW 1 (Cl 11680); ORANGE COSMENYL GR: Pigment ORANGE 43 (Cl 71 105);

- COSMENYL RED R ": Pigment RED 4 (Cl 12085);

CARMIN COSMENYL FB: Pigment RED (Cl 12490);

- VIOLET COSMENYL RL: Pigment VIOLET 23 (Cl 51319); - COSMENYL BLUE A2R: Pigment BLUE 15.1 (Cl 74160); - GREEN COSMENYL GG: Pigment GREEN 7 (Cl 74260);

- BLACK COSMENYL R Pigment BLACK 7 (Cl 77266).

The pigment can also be a lacquer. By lacquer is meant insolubilized dyes adsorbed on insoluble particles, the assembly thus obtained remaining insoluble during use. The inorganic substrates on which the dyes are adsorbed are, for example, alumina, silica, calcium and sodium borosilicate or calcium and aluminum borosilicate, and aluminum.

Among the organic dyes, mention may be made of cochineal carmine. Mention may also be made of the products known under the following names: D & C Red 21 (Cl 45 380), D & C Orange 5 (Cl 45 370), D & C Red 27 (Cl 45 410), D & C Orange 10 (Cl 45,425), D & C Red 3 (Cl 45,430), D & C Red 4 (Cl 15,510), D & C Red 33 (Cl 17,200), D & C Yellow 5 (Cl 19,140), D & C Yellow 6 (Cl 15,985), D & C Green (Cl 61,570), D & C Yellow 10 (Cl 77,002), D & C Green 3 (Cl 42,053), D & C Blue 1 ( Cl 42 090). As examples of lacquers, mention may be made of the product known under the following name: D & C Red 7 (Cl 15 850: 1).

The pigment can also be a special effects pigment. Pigments with special effects means pigments which generally create a colored appearance (characterized by a certain nuance, a certain liveliness and a certain clarity) which is non-uniform and changeable according to the conditions of observation (light, temperature , observation angles, ...). They are opposed by that even with white or colored pigments that provide a uniform, opaque, semi-transparent or classic transparent shade.

There are two types of special effect pigments, those with low refractive index such as fluorescent pigments, photochromic or thermochromic, and those with higher refractive index such as nacres or flakes.

As special effect pigments, mention may be made of pearlescent pigments such as 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 in particular ferric blue or chromium oxide, titanium mica with an organic pigment of the aforementioned type as well as pearlescent pigments based on bismuth oxychloride.

It is also possible to mention interferential effect pigments not fixed on a substrate, such as liquid crystals (Wacker Helicones HC) or holographic interference flakes (Spectratek Geometry Pigments or Spectra f / x). Special effect pigments also include fluorescent pigments, whether they are fluorescent substances in the light of day or that produce an ultraviolet fluorescence, phosphorescent pigments, photochromic pigments, thermochromic pigments and quantum dots, marketed for example by the Quantum Dots Corporation. Quantum dots are luminescent semiconductor nanoparticles capable of emitting, under light excitation, radiation having a wavelength of between 400 nm and 700 nm. These nanoparticles are known from the literature. In particular, they can be manufactured according to the methods described for example in US Pat. No. 6,225,198 or US 5,990,479, in the publications cited therein, as well as in the following publications: Dabboussi BO et al (CdSe) ZnS core quantum dots: synthesis and characterization of a series of highly luminescent nanocrystallites. Journal of Phosphical Chemistry, Vol 101, 1997, pp 9463-9475. and Peng, Xiaogang et al, "Epitaxial Growth of Highly Luminescent CdSe / CdS core / nanocrystals shell with photostability and electronic accessibility" Journal of the American Chemical Society, vol 119, / V30, pp 7019-

7029.

Special effect pigments also include fluorescent pigments, whether they are fluorescent substances in daylight or that produce ultraviolet fluorescence, phosphorescent pigments, photochromic pigments, thermochromic pigments.

The pigment may be a mineral pigment. By mineral pigment is meant any pigment that meets the definition of the Ullmann encyclopedia in the chapter inorganic pigment. Among the mineral pigments useful in the present invention, mention may be made of zirconium or cerium oxides, as well as iron or chromium oxides, manganese violet, ultramarine blue, chromium hydrate and ferric blue. , titanium dioxide. The following mineral pigments can also be used: Ta ₂ O ₅ , Ti ₃ O ₅ , Ti ₂ O ₃ , TiO, ZrO ₂ mixed with TiO ₂ , ZrO ₂ , Nb ₂ O ₅ , CeO ₂ , ZnS.

The pigment may also be a pearlescent pigment such as white pearlescent pigments, for example mica coated with titanium, or bismuth oxychloride, colored pearlescent pigments such as mica coated with titanium and iron oxides, coated mica titanium and in particular ferric blue or chromium oxide, mica coated with titanium and an organic pigment as defined above, and pearlescent pigments based on bismuth oxychloride. By way of example, mention may be made of Cellini pigments marketed by Engelhard (Mica-TiO ₂ -laque), Prestige marketed by Eckart (MiCa-TiO ₂ ), and Merck-marketed Colorona (MiCa-TiO ₂ -Fe ₂ O ₃ ). .

In addition to nacres on a mica support, it is possible to envisage multilayer pigments based on synthetic substrates such as alumina, silica, calcium and sodium borosilicate or calcium and aluminum borosilicate, and aluminum. The size of the pigment useful in the context of the present invention is generally between 10 nm and 200 μm, preferably between 20 nm and 80 μm, and more preferably between 30 nm and 50 μm.

The pigments can be dispersed in the product by means of a dispersing agent. The dispersing agent serves to protect the dispersed particles against agglomeration or flocculation. This dispersing agent may be a surfactant, an oligomer, a polymer or a mixture of several of them, bearing one or more functionalities having a strong affinity for the surface of the particles to be dispersed. In particular, they can cling physically or chemically to the surface of the pigments. These dispersants have, in addition, at least one functional group compatible or soluble in the continuous medium. In particular, the esters of 12-hydroxystearic acid, in particular of C ₈ to C ₂₀ fatty acid, and of polyol, such as glycerol or diglycerol, such as poly (12-hydroxystearic acid) stearate, are used in particular. ) with a molecular weight of approximately 750 g / mol, such as that sold under the name Solsperse 21 000 by the company Avecia, the 2-polyglyceryl dipolyhydroxystearate (CTFA name) sold under the reference Dehymyls PGPH by the Henkel or polyhydroxystearic acid such as that sold under the reference Arlacel P100 by Uniqema and their mixtures. As another dispersant that can be used in the compositions of the invention, mention may be made of the quaternary ammonium derivatives of polycondensed fatty acids, such as the Solsperse 17 000 sold by the company Avecia, the poly dimethylsiloxane / oxypropylene mixtures such as those sold by the Dow Company. Corning under the references DC2-5185, DC2-5225 C.

The polydihydroxystearic acid and the esters of hydroxy12-stearic acid are preferably intended for a hydrocarbon or fluorinated medium, while the dimethylsiloxane oxyethylene / oxypropylene mixtures are preferably intended for a silicone medium.

The compositions according to the invention may comprise at least one filler, especially in a content ranging from 0.01% to 50% by weight, relative to the total weight of each first and second composition or relative to the total weight of the composition when A and B are present within the same composition, preferably ranging from 0.01% to 30% by weight. The fillers can be mineral or organic of any shape, platelet, spherical or oblong, irrespective of the crystallographic form (for example sheet, cubic, hexagonal, orthorhombic, etc.). Talc, mica, silica, silica surface-treated with a hydrophobic agent, kaolin, polyamide (Nylon®) powders (Orgasol® from Atochem), poly-β-alanine and polyethylene may be mentioned. , polymer powders of tetrafluoroethylene (Teflon®), lauroyl-lysine, starch, boron nitride, polymeric hollow microspheres such as those of polyvinylidene chloride / acrylonitrile such as Expancel® (Nobel Industry), copolymers of acrylic acid (Polytrap® from the Dow Corning Company) and silicone resin microspheres (Toshiba Tospearls®, for example), elastomeric polyorganosiloxane particles, precipitated calcium carbonate, carbonate and hydro- magnesium carbonate, hydroxyapatite, hollow silica microspheres (Silica Beads® from Maprecos), glass or ceramic microcapsules, metal soaps derived from organic carboxylic acids having from 8 to 22 carbon atoms, preferably from 12 to 18 carbon atoms, for example zinc, magnesium or lithium stearate, zinc laurate, magnesium myristate.

The compositions according to the invention may also contain ingredients commonly used in cosmetics, such as vitamins, thickeners, gelling agents, trace elements, softeners, sequestering agents, perfumes, alkalizing or acidifying agents, preservatives, sunscreens, surfactants, antioxidants, silicone oil (s), care agents or mixtures thereof .

The gelling agents that may be used in the compositions according to the invention may be hydrophilic, lipophilic, organic or mineral, polymeric or molecular gelling agents.

As lipophilic gelling mineral include optionally modified clays such as hectorites modified with a fatty acid ammonium chloride -C ₀ -C _22, such as hectorite modified by chloride distearyl methyl ammonium di- such that, for example, that marketed under the name "Bentone 38V ^® " by the company ELEMENTIS. It is also possible to mention fumed silica optionally treated hydrophobic surface whose particle size is less than 1 micron. It is indeed possible to chemically modify the surface of the silica, by chemical reaction generating a decrease in the number of silanol groups present on the surface of the silica. In particular, it is possible to substitute silanol groups with hydrophobic groups: a hydrophobic silica is then obtained. The hydrophobic groups can be:

trimethylsiloxyl groups, which are especially obtained by treatment of fumed silica in the presence of hexamethyldisilazane. Silicas thus treated are named "Silica Silylate" according to the CTFA (6 ^th edition, 1995). They are for example marketed under the references "Aerosil R812 ^®" by the company Degussa, and "CAB-O-SIL TS-530 ^®" by the company Cabot; dimethylsilyloxyl or polydimethylsiloxane groups, which are obtained especially by treating fumed silica in the presence of polydimethylsiloxane or dimethyldichlorosilane. Silicas thus treated are known as "silica dimethyl Silylate" according to the CTFA (6 ^th edition, 1995). They are for example marketed under the references "Aerosil R972 ^® ", and "Aerosil R974 ^® " by the company DEGUSSA, "CAB-O-SIL TS-610 ^® " and "CAB-O-SIL TS-720 ^® " by the CABOT company.

The hydrophobic fumed silica has in particular a particle size that can be nanometric to micrometric, for example ranging from about 5 to 200 nm. It is also possible to use nonpolymeric molecular organic gelling agents, also called organogelators, associated with a liquid fatty phase (which may be the liquid fatty phase of the composition according to the invention), which are compounds whose molecules are capable of establishing between them physical interactions leading to a self-aggregation of the molecules with formation of a supra-molecular 3D network which is responsible for the gelation of the liquid fatty phase.

The supramolecular network can result from the formation of a network of fibrils (due to the stacks or aggregations of organogelling molecules), immobilizing the molecules of the liquid fatty phase.

The ability to form this network of fibrils, and thus to gel, depends on the nature (or chemical class) of the organogelator, the nature of the substituents carried by its molecules for a given chemical class and the nature of the phase liquid fat. Physical interactions are diverse but exclude co-crystallization. These physical interactions are in particular interactions of the type self-complementary hydrogen interactions, π interactions between unsaturated rings, dipolar interactions, coordination bonds with organometallic derivatives and their associations. In general, each molecule of an organogelator can establish several types of physical interactions with a neighboring molecule. Also, advantageously, the molecules of the organogelators according to the invention comprise at least one group capable of establishing hydrogen bonds and better at least two groups capable of establishing hydrogen bonds, at least one aromatic ring and better at least two aromatic rings. at least one or more ethylenically unsaturated bonds and / or at least one or more asymmetric carbons. Preferably, the groups capable of making hydrogen bonds are chosen from hydroxyl, carbonyl, amine, carboxylic acid, amide, urea and benzyl groups and their combinations. The organogelling agent (s) are soluble in the liquid fatty phase after heating until a transparent homogeneous liquid phase is obtained. They can be solid or liquid at room temperature and atmospheric pressure.

The molecular organogelling agent (s) that can be used in the composition according to the invention are in particular those described in the document "Specialist Surfactants", edited by D. Robb of 1997, p.209-263, chapter 8 of P. Terech, European applications EP -A-1068854 and EP-A-1086945 or in the application WO-A-02/47031. Among these organogelators, there may be mentioned amides of carboxylic acids, in particular tri-carboxylic acids such as cyclohexanetricarboxamides (see European Patent Application EP-A-1068854), the diamines having hydrocarbon chains each containing from 1 to 22 carbon atoms, for example from 6 to 18 carbon atoms, said chains being unsubstituted or substituted with at least one substituent chosen from ester, urea and fluoro groups (see application EP-A-1086945) and in particular the resulting diamides reaction of diaminocyclohexane, in particular diaminocyclohexane in trans form, and an acid chloride such as for example N, N'-bis (dodecanoyl) -1,2-diaminocyclohexane, the amides of N-acylamino acids as the diamides resulting from the action of an N-acylamino acid with amines comprising from 1 to 22 carbon atoms, for example those described in document WO-93/23008 and in particular the amides of the acid N-acylglutamic acid, in which the acyl group represents a C ₈ to C ₂₂ alkyl chain, such as N-Lauroyl-L-glutamic acid dibutylamide, manufactured or marketed by Ajinomoto under the name GP-1, and mixtures thereof.

The polymeric organic lipophilic gelling agents are, for example, elastomeric polyorganosiloxanes partially or totally crosslinked, three-dimensional structure, such as those sold under the names "KSG6 ^®", "KSG16 ^®" and "KSG18 ^®" by the company Shin-Etsu, for "Trefil E-505C ^® " and "Trefil E-506C ^® " by DOW-CORNING, "Gransil SR-CYC ^® ", "SR DMF10 ^® ", "SR-DC556 ^® ", "SR 5CYC gel ^® ""SR DMF 10 gel ^® " and "SR DC 556 gel ^® " by the company GRANT INDUSTRIES, "SF 1204 ^® " and "JK 1 13 ^® " by the company GENERAL ELECTRIC; ethyl cellulose such as that sold under the name of "Ethocel ^®" by the company Dow Chemical; polycondensates of polyamide type resulting from the condensation between (α) at least one acid selected from dicarboxylic acids comprising at least 32 carbon atoms such as dimeric fatty acids and (β) an alkylene diamine and in particular ethylene diamine, in which the polyamide polymer comprises at least one esterified or amidified terminal carboxylic acid group with at least one monohydric alcohol or a monoamine comprising from 12 to 30 linear and saturated carbon atoms, and in particular the copolymers of ethylene diamine / dilinoleate stearyl such as that marketed under the name Uniclear® 100 VG ^® by Arizona Chemical; silicone polyamides of the polyorganosiloxane type, such as those described in the US-A-5,874,069, US-A-5,919,441, US-A-6,051, 216 and

US-A-5,981,680; galactomannans comprising from one to six, particularly two to four hydroxyl groups per saccharide, substituted with a saturated alkyl chain or not, such as guar gum alkylated with alkyl chains to C _6, and in particular C 1 to C 3 and mixtures thereof. Copolymers like sequences "diblock" or "triblock" of the polystyrene / polyisoprene or polystyrene / polybutadiene type such as those marketed under the name "Luvitol HSB ^®" by the company BASF, of the polystyrene / copoly (ethylene-propylene) type such those marketed under the name "Kraton ^®" by Shell Chemical Co., or of the polystyrene / poly (ethylene-butylene).

Among the gelling agents that may be used in the compositions according to the invention, mention may also be esters of dextrin fatty acid, such as dextrin palmitates, especially such as those sold under the names "Rheopearl TL ^®" or "Rheopearl KL ^® " by the company CHIBA FLOUR.

The lipophilic gelling agents may be present in the compositions according to the invention in a content ranging from 0.05 to 40% by weight relative to the total weight of each composition, in particular of each first and second composition, preferably 0.5 at 20% and better still 1 to 15% by weight.

As hydrophilic or water-soluble gelling agents, mention may be made of: homo or copolymers of acrylic or methacrylic acids or their salts and esters, and in particular the products sold under the names

"VERSICOL F" or "VERSICOL K" by the company ALLIED COLLOID, "UTRAHOLD 8" by the company CIBA-GEIGY, polyacrylic acids SYNTHALEN type K, copolymers of acrylic acid and acrylamide sold in the form of their sodium salt under the names "RETEN" by the company HERCULES, sodium polymethacrylate sold under the name "DARVAN No. 7" by the company Vanderbilt, the sodium salts of polyhydroxycarboxylic acids sold under the name "HYDAGEN F" by HENKEL company, polyacrylic acid / alkyl acrylate copolymers of the type PEMULEN, AMPS (polyacrylamidomethyl propane sulfonic acid partially neutralized with ammonia and highly crosslinked) sold by the company Clariant, - copolymers AMPS / acrylamide type SEPIGEL or

SIMULGEL sold by the company SEPPIC, and polyoxyethylenated AMPS / alkyl methacrylate copolymers (crosslinked or otherwise) and mixtures thereof.

Other examples of water-soluble gelling polymers include: proteins such as proteins of plant origin such as wheat and soy proteins; proteins of animal origin such as keratins, for example keratin hydrolysates and keratin sulfonates; anionic, cationic, amphoteric or nonionic chitin or chitosan polymers; cellulose polymers such as hydroxyethyl cellulose, hydroxypropyl cellulose, methyl cellulose, ethyl hydroxyethyl cellulose, carboxymethyl cellulose, and quaternized cellulose derivatives; vinyl polymers, such as polyvinylpyrrolidones, copolymers of methylvinyl ether and malic anhydride, copolymer of vinyl acetate and crotonic acid, copolymers of vinylpyrrolidone and vinyl acetate; copolymers of vinylpyrrolidone and caprolactam; polyvinyl alcohol; associative polyurethanes such as the polymer Ci6-OE ₁₂ o-C16 from Servo Delden (sold under the name SER AD FX1 100, urethane functional molecule and weight average molecular weight of 1300), EO being an oxyethylenated unit, the Rheolate 205 with a urea function sold by the company Rheox or else the Rheolate 208 or 204 (these polymers being vensus in pure form) or the DW 1206B from RHOM & HAAS with a C ₂ 0 alkyl chain and a urethane bond, sold at 20 ° C. % dry matter in water. It is also possible to use solutions or dispersions of these associative polyurethanes, especially in water or in a hydroalcoholic medium. By way of example, such polymers include SER AD FX1010, SER AD FX1035 and SER AD 1070 from SERVO DELDEN, Rheolate 255, Rheolate 278 and Rheolate 244 sold by RHEOX. It is also possible to use the product DW 1206F and the DW 1206J, as well as the Acrysol RM 184 or the Acrysol 44 from the company RHOM & Haas, or else the Borchigel LW 44 from the company BORCHERS, polymers of natural origin, possibly modified, such as: gum arabic, guar gum, xanthan derivatives, karaya gum; alginates and carrageenans; glycosaminoglycans, hyaluronic acid and its derivatives; shellac resin, sandaraque gum, dammars, elemis, copals; deoxyribonucleic acid; - Muccopolysaccharides such as hyaluronic acid, chondroitin sulfate, and mixtures thereof.

The hydrophilic gelling agents may be present in the compositions according to the invention in a content ranging from 0.05 to 20% by weight relative to the total weight of each first and second composition, preferably from 0.5 to 10% and more preferably from 0.8 to 5% by weight.

The compositions according to the invention may contain emulsifying surfactants present in particular in a proportion ranging from 0.1 to 30% by weight relative to the total weight of each composition, better from 1 to 15% and better still from 2 to 10%. These surfactants may be chosen from anionic, nonionic, amphoteric or zwitterionic surfactants. Reference can be made to the document "Encyclopedia of Chemical Technology, KIRK-OTHMER", volume 22, p.333-432, 3rd edition, 1979, WILEY, for the definition of the properties and functions (emulsifier) of surfactants, in particular .347-377 of this reference, for anionic and nonionic surfactants.

The surfactants preferably used in the first and second compositions according to the invention are chosen from: a) nonionic surfactants with a HLB greater than or equal to 8 at 25 ° C., used alone or as a mixture; mention may be made in particular of: oxyethylenated and / or oxypropylenated ethers (which may contain from 1 to 150 oxyethylenated and / or oxypropylenated groups) of glycerol; oxyethylenated and / or oxypropylenated ethers (which can comprise from 1 to 150 oxyethylenated and / or oxypropylene groups) of fatty alcohols (in particular of C8-C24 and preferably of C12-C18 alcohols), such as oxyethylenated ether of cetyl alcohol with 30 oxyethylenated groups (CTFA name "Ceteareth-30") and the oxyethylenated ether of the mixture of C12-C15 fatty alcohols having 7 oxyethylenated groups (CTFA name "C12-15 Pareth-7" marketed under the name "NEODOL 25-7" ^® by SHELL CHEMICALS; fatty acid esters; (In particular C8-C24, and preferably C16-C22, acid) and polyethylene glycol (which may comprise from 1 to 150 ethylene glycol units) such as PEG-50 stearate and marketed PEG-40 monostearate. under the name MYRJ 52P by the company ICI UNIQUEMA, fatty acid esters (in particular C8-C24, and preferably C16-C22 acid) and oxyethylenated and / or oxypropylenated glycerol ethers (which may comprise from 1 to to 150 oxyethylenated and / or oxypropylenated groups), such as PEG-200 glyceryl monostearate sold under the name "Simulsol 220 TM" by the company SEPPIC, polyethoxylated glyceryl stearate with 30 ethylene oxide groups, such as the product TAGAT S sold by the company GOLDSCHMIDT, the glyceryl oleate polyethoxylated with 30 ethylene oxide groups, such as the product TAGAT O sold by the company GOLDSCHMIDT, polyethoxylated glyceryl cocoate with 30 ethylene oxide groups, such as the product VARIONIC Ll 13 sold by the company SHEREX, glyceryl isostearate polyethoxylated with 30 ethylene oxide groups, such as the product TAGAT L sold by GOLDSCHMIDT and polyethoxylated glyceryl laurate with 30 ethylene oxide groups, such as the product TAGAT I from GOLDSCHMIDT; fatty acid esters (in particular C8-C24, and preferably C16-C22, acid) and oxyethylenated and / or oxypropylenated sorbitol ethers (which may contain from 1 to 150 oxyethylene and / or oxypropylene groups), such as polysorbate 60 sold under the name "Tween

60 "by the company UNIQUEMA; dimethicone copolyol, such as that sold under the name "Q2-5220" by the company Dow Corning; dimethicone copolyol benzoate (FINSOLV SLB 101 and 201 from the company FINTEX); copolymers of propylene oxide and ethylene oxide, also called EO / Op polycondensates, for example the polyethylene glycol / polypropylene glycol / polyethylene glycol triblock polycondensates sold under the names "SYNPERONIC" such as "SYNPERONIC PE / L44" and " SYNPERONIC PE / F127 "by ICI, and mixtures thereof. and mixtures thereof, b) nonionic surfactants with a HLB of less than 8 at 25 ° C, optionally associated with one or more nonionic surfactants of HLB greater than 8 at 25 ° C, as mentioned above such as: esters and ethers of dares such as sucrose stearate, sucrose cocoate, sorbitan stearate and mixtures thereof, such as Arlatone 2121 marketed by ICI; esters of fatty acids (especially C8-C24, and preferably C16-C22) and of polyol, especially glycerol or sorbitol, such as glyceryl stearate, glyceryl stearate such as the product sold under the name TEGIN M by the company GOLDSCHMIDT, glyceryl laurate such as the product sold under the name IMWITOR 312 by the company HULS, polyglyceryl-2 stearate, sorbitan tristearate, glyceryl ricinoleate; the cyclomethicone / dimethicone copolyol mixture sold under the name "Q2-3225C" by the company Dow Corning; and c) anionic surfactants such as: salts of C ₁₆ -C ₃₀ fatty acids, especially those derived from amines, such as triethanolamine stearate; salts of polyoxyethylenated fatty acids, in particular those derived from amines or alkaline salts, and mixtures thereof; phosphoric esters and their salts such as "DEA oleth-10 phosphate" (Crodafos N 1 ON from CRODA), cetyl phosphate (Amphisol

K from DSM Nutritionnal Products); sulfosuccinates such as "Disodium PEG-5 citrate lauryl sulfosuccinate" and "Disodium ricinoleamido MEA sulfosuccinate" alkyl ether sulfates such as sodium lauryl ether sulfate; isethionates; acylglutamates such as "Disodium hydrogenated tallow glutamate" (AMISOFT HS-21 R marketed by the company AJINOMOTO) and mixtures thereof. Particularly suitable for the invention, triethanolamine stearate. The latter is generally obtained by simple mixing of stearic acid and triethanolamine.

Surfactants are preferably used to obtain an oil-in-water or wax-in-water emulsion.

The compositions according to the invention may comprise any cosmetic active agent such as the active ingredients chosen from antioxidants, preservatives, perfumes, bactericidal or antiperspirant active agents, neutralizers, emollients, moisturizers, vitamins and especially solar filters.

fibers

The compositions included in the makeup kits according to the invention may independently of each other also further include fibers which allow in particular an improvement of the lengthening effect of the eyelashes. 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 compositions included in the makeup kits of 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 silicone 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 may in particular have a title chosen in the range from 0.15 to 30 deniers and in particular from 0.18 to 18 denier.

The fibers that can be used in the compositions included in the makeup kits according to the invention can be chosen from rigid or non-rigid fibers, they can 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 a usable fibers in the compositions included in the makeup kits according to the invention, mention may be made of non-rigid fibers such as polyamide fibers (Nylon ^®) or rigid fibers such as polyimide-amide fibers such as KERMEL sold under the name ^®, KERMEL TECH ^® by the company Rhodia or poly (p-phenylene terephthalamide) (or aramide) sold under the name Kevlar ^® by the company

DUPONT OF NEMOURS.

The fibers may be present in a content ranging from 0.01% to 10% by weight, relative to the total weight of the composition comprising them, in particular from 0.05% to 5% by weight.

Of course, a person skilled in the art will take care to choose this or these optional additional compounds, and / or their quantity, in such a way that the advantageous properties of the corresponding composition according to the invention are not, or not substantially, impaired by the contemplated addition, in particular so as not to interfere with the reaction between compounds A and B.

The first and second, and optionally, third compositions according to the invention may be independently in the form of suspension, dispersion, solution, gel, emulsion, in particular oil-in-water emulsion ( H / E), wax-in-water or water-in-oil (W / O), or multiple (W / O / E or polyol / H / E or H / E / H), in the form of cream, paste, foam, dispersion of vesicles including ionic lipids or not, two-phase or multiphase lotion, powder, paste, including soft paste.

Those skilled in the art may choose the appropriate dosage form, as well as its method of preparation, on the basis of its general knowledge, taking into account, on the one hand, the nature of the constituents used, in particular their solubility in the support, and on the other hand, the intended application for each composition.

The invention is further illustrated by the examples described hereinafter. Unless otherwise indicated, the quantities indicated are expressed as a percentage by mass.

EXAMPLES

In the composition examples described below, use is made of the combination of the following mixtures A and B prepared by Dow Corning:

MIXING TO:

MIXING B:

Example 1: Mascara

Composition 1

At room temperature, the various compounds are mixed in a beaker with gentle stirring in the turbine.

Composition 2

Operating mode

The black iron oxide is dispersed in the cyclopentasiloxane with slight magnetic stirring and this dispersion is then added to the remainder of the constituents. The entire procedure is performed at room temperature.

Example 2: Mascara

Composition 1

Operating mode

The black iron oxide is dispersed in phenyltrimethicone under weak magnetic stirring. This dispersion is incorporated with Rayneri stirring into the previously melted polyethylene wax and stirring is then maintained during cooling of the mixture. When the mixture begins to thicken but is still melted, the previously heated mixture A is added, followed by moderate stirring until it returns to room temperature. Composition 2

For each example 1 and 2, a layer of the first composition is applied to 6 test pieces of Caucasian hair (30 1 cm long hair distributed over a distance of 1 cm), then a layer of the composition 2 is applied. a few minutes.

3 of the 6 false eyelashes made up with the compositions of Example 2 were placed 1 week in immersion in a crystallizer containing water and 3 specimens of false eyelashes in a crystallizer containing artificial sebum (formulated from the known composition of sebum).

After a week of immersion, each test piece is rubbed with a cotton cloth and then the amount of mascara is evaluated on the cotton and on the eyelashes. After 1 week of immersion in water or sebum, no transfer of mascara was found on the wipe.

The compositions of Examples 1 and 2 can also be applied by extemporaneously mixing the first and second compositions.

Example 3 Mascara

Composition 1

Composition 2

Operating mode

The black iron oxide is dispersed in phenyltrimethicone under weak magnetic stirring. This dispersion is incorporated with Rayneri stirring in the previously melted silicone wax and stirring is then maintained during the cooling of the mixture. When the mixture begins to thicken but is still melted, the previously heated mixture A is added, followed by moderate stirring until it returns to room temperature.

Claims

An eyelash coating kit comprising: at least one first composition and at least one second composition packaged separately, the kit comprising at least one compound (X), at least one compound (Y), and optionally at least one catalyst or a peroxide, at least one of the compounds X or Y being silicone, - provided that the compounds X, Y and the catalyst when it is present, or the peroxide, are not simultaneously present in the same composition, said compounds X and Y being capable of reacting together by a hydrosilylation reaction, or by a condensation reaction or by a crosslinking reaction in the presence of a peroxide, when they are brought into contact with each other, and at least one silicone oil.

2. Kit according to claim 1, characterized in that at least one of the compounds X and Y is carrying at least one polar group capable of forming at least one hydrogen bond with the keratin materials.

3. Kit according to claim 1 or 2, characterized in that it comprises a catalyst.

4. Kit according to one of the preceding claims, characterized in that the compounds X and Y are capable of reacting by hydrosilylation.

5. Kit according to claim 4, characterized in that the compound X is chosen from silicone compounds comprising at least two unsaturated aliphatic groups.

6. Kit according to claim 4 or 5 wherein the compound X is a polyorganosiloxane comprising a silicone main chain whose unsaturated aliphatic groups are pendent to the main chain

(lateral group) or located at the ends of the main chain of the compound (terminal group).

7. Kit according to one of claims 4 to 6, characterized in that the compound X is carrying at least one polar group capable of forming at least one hydrogen bond with the eyelashes.

8. Kit according to one of claims 4 to 7, characterized in that the compound X is selected from polyorganosiloxanes comprising at least two unsaturated aliphatic groups each bonded to a silicon atom

9. Kit according to one of claims 4 to 8, characterized in that the compound X is chosen from polyorganosiloxanes comprising siloxane units of formula:

in which: R represents a monovalent hydrocarbon group, linear or cyclic, comprising from 1 to 30 carbon atoms, m is equal to 1 or 2 and R 'represents: an unsaturated aliphatic hydrocarbon group comprising from 2 to 10, preferably from 3 to 5 carbon atoms or an unsaturated cyclic hydrocarbon group comprising 5 to 8 carbon atoms.

10. Kit according to claim 9 wherein the polyorganosiloxane of formula (I) is such that R 'represents a vinyl group or a group -R "-CH = CHR'" in which R "is a divalent aliphatic hydrocarbon chain, comprising 1 to 8 carbon atoms, bonded to the silicon atom and R '"is a hydrogen atom or an alkyl radical comprising 1 to 4 carbon atoms, preferably a hydrogen atom.

11. Kit according to claim 9 or 10, characterized in that R represents an alkyl radical comprising from 1 to 10 carbon atoms or a phenyl group and R 'is chosen from vinyl groups.

12. Kit according to one of claims 4 to 1 1, characterized in that the polyorganosiloxanes further comprise units of formula wherein R is a group as defined in claim 9, n is 1, 2 or 3.

13. Kit according to claim 4, characterized in that the compound X is chosen from organic oligomers or polymers, oligomers or hybrid organic / silicone polymers, said oligomers or polymers bearing at least 2 reactive unsaturated aliphatic groups and mixtures thereof.

14. Kit according to one of claims 4 to 13, characterized in that the compound Y is chosen from organosiloxanes comprising at least two free Si-H groups

15. Kit according to one of claims 4 to 14, characterized in that the compound Y is chosen from organosiloxanes comprising at least one alkylhydrogenosiloxane unit of the following formula:

in which :

R represents a monovalent hydrocarbon group, linear or cyclic, comprising from 1 to 30 carbon atoms or a phenyl group, and p is equal to 1 or 2.

16. Kit according to claim 15, wherein the compound Y is such that the radicals R represent a C1-C10 alkyl group, preferably methyl.

17. Kit according to one of claims 14 to 16, wherein the organosiloxanes Y comprise at least two alkylhydrogenosiloxane units of formula H ₃ CHSiO and optionally comprise units (H ₃ C ^ SiO.

18. Kit according to one of claims 3 to 17, characterized in that the catalyst is a platinum or tin catalyst present in one or other of the compositions comprising X and / or Y or in a separate composition.

19. Kit according to the preceding claim, characterized in that the catalyst is from 0.0001% to 20% by weight relative to the total weight of the composition comprising it.

20. Kit according to any one of claims 4 to 19, characterized in that the compound X is a polydimethylsiloxane end vinyl groups and the compound Y is a methylhydrogensiloxane.

21. Kit according to one of claims 4 to 20, wherein the compositions comprising compound X and / or Y further comprise an additional reactive compound such as: organic or inorganic particles comprising on their surface at least 2 unsaturated aliphatic groups there may be mentioned, for example, silicas surface-treated for example with silicone compounds containing vinyl groups such as, for example, cyclotetramethyltetravinylsiloxane treated silica, silazane compounds such as hexamethyldisilazane.

22. Kit according to one of claims 1 to 3, wherein the compound X and the compound Y are capable of reacting by condensation.

23. A kit according to claim 22, in which the compounds X and / or Y, which are identical or different, are silicone compounds whose main chain comprises at least two alkoxysilane groups and / or at least two silanol groups (Si-

OH), said groups being lateral and / or at the end of the chain.

24. Kit according to claim 22 or 23, characterized in that the compounds X and / or Y, which are identical or different, mainly comprise units of formula

^"" ^"(IV) wherein R ⁹ independently represent a radical selected from alkyl groups comprising from 1 to 6 carbon atoms, phenyl, fluorinated alkyl groups, and S is 0, 1, 2 or 3.

25. Kit according to claim 24, characterized in that the compounds X and / or Y, which are identical or different, comprise units of formula

(R ⁹ , SK ^ - _(γ)

wherein R ⁹ is as defined in claim 24, and f is a number from 2 to 5000, preferably from 3 to 3000, more preferably from 5 to 1000.

26. Kit according to one of claims 22 to 25, characterized in that the compounds X and / or Y polyorganosiloxanes comprise at least 2 terminal trialkoxysilane groups per polymer molecule, said groups having the following formula

in which the R radicals independently represent a methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl or isobutyl group,

R ¹ is a methyl or ethyl group, x is equal to 0 or 1, preferably x is equal to 0 and Z is chosen from: divalent hydrocarbon groups not containing ethylenic unsaturation and comprising from 2 to 18 carbon atoms the combinations of divalent hydrocarbon radicals and siloxane segments of formula (IX):

JR.9 R ⁹

. (IX) wherein R ⁹ is as defined in claim 24, G is a divalent hydrocarbon radical having no ethylenic unsaturation and having 2 to 18 carbon atoms and c is an integer of 1 to 6.

27. Kit according to one of claims 22 to 26, characterized in that the polyorganosiloxanes are chosen from polymers of formula (VII):

(VU)

wherein R, R ¹ , R ⁹ , Z, x and f are as defined in claims 24 and 26.

28. Kit according to one of claims 22 to 27, characterized in that at least one of the compositions comprises a titanium-based catalyst.

29. Kit according to claim 28, characterized in that the catalyst is present in a content ranging from 0.0001% to 20% by weight relative to the total weight of the composition which comprises it.

30. Kit according to any one of claims 22 to 29 wherein compounds X and Y represent a mixture of polydimethylsiloxanes containing methoxysilane groups.

31. Kit according to claim 1 or 2, characterized in that the compounds X and Y are capable of reacting by crosslinking in the presence of peroxide.

32. Kit according to any one of the preceding claims, characterized in that it comprises in at least one of the compositions of silica or silica treated surface.

33. Kit according to one of claims 2 or 7, characterized in that the polar group or groups capable of forming at least one hydrogen bond with the eyelashes, are selected from the following groups: carboxylic acid -COOH, alcohols, such as: -CH 2 OH or -CH (R) OH, R being an alkyl radical comprising 1 to 6 carbon atoms, amino of formula -NR ₁ R _2, in which the R ₁ and R _{2, which are} identical or different, represent an alkyl radical comprising 1 to 6 carbon atoms or one of R1 or R2 denotes a hydrogen, pyridino or amido atom of formula -NH-COR 'or -CO-NH-R' in which R 'represents a hydrogen atom or an alkyl radical comprising from 1 to 6 carbon atoms - pyrrolidino preferably chosen from groups of formula:

R ₁ being an alkyl radical comprising 1 to 6 carbon atoms, carbamoyl of formula -O-CO-NH-R 'or -NH-CO-OR', R 'being as defined above, thiocarbamoyl, as -O-CS-NH-R 'or -NH-CS-O R', R 'being as defined above, ureyl such that -NR' -CO-N (R ') ₂ , the R' identical or different as defined above, - sulfonamido such that -N R'-S (= O) 2- R ', R' as defined above.

34. Kit according to one of claims 2, 7 or 33 characterized in that the polar group or groups are present in a content less than or equal to 10% by weight relative to the weight of each compound X or Y, preferably lower or equal to 5% by weight, for example in a content ranging from 1 to 3% by weight relative to the weight of each compound X or Y.

35. Kit according to one of claims 2, 7, 33 or 34, characterized in that the polar group or groups are located in the main chain of the compound X and / or Y or are pendant to the main chain or located at the ends. of the main chain of the compound X and / or Y.

36. Kit according to one of the preceding claims, characterized in that the compound X has a weight average molecular weight (Mw) ranging from 150 to 1,000,000, preferably from 200 to 800,000, more preferably from 200 to 250,000.

37. Kit according to one of the preceding claims, characterized in that the compound Y has a molecular weight (Mw) ranging from 200 to 1,000,000, preferably from 300 to 800,000, more preferably from 500 to 250 000.

38. Kit according to one of the preceding claims, characterized in that the compound X represents from 0.5% to 95% by weight relative to the total weight of the composition comprising it, preferably from 1% to 90% and better from 5% to 80%.

39. Kit according to one of the preceding claims, characterized in that the compound Y represents from 0.05% to 95% by weight relative to the total weight of the composition comprising it, preferably from 1% to 90% and better from 5% to 80%.

40. Kit according to one of the preceding claims, characterized in that the compounds X and Y are present in the compositions in an X / Y molar ratio ranging from 0.05 to 20 and better still from 0.1 to 10.

41. Kit according to one of the preceding claims, characterized in that it comprises a first composition comprising at least one compound X and at least one compound Y, a second composition comprising at least one compound X and a catalyst, one at least first and second compositions comprising at least one silicone oil.

42. Kit according to one of the preceding claims, characterized in that the silicone oil or oils are present in a content ranging from 0.5% to 90% by weight, preferably from 5% to 80% by weight, more preferably 10 to 60% by weight and more preferably 10 to 50% by weight relative to the total weight of each composition comprising them.

43. Kit according to one of the preceding claims, characterized in that the or the silicone oils are chosen from volatile oils and / or non-volatile oils, and mixtures thereof.

44. Kit according to the preceding claim, characterized in that the volatile silicone oil or oils are chosen from volatile linear or cyclic silicone oils, especially those having a viscosity <8 centistokes (8 10 ^-6 m ² / s), and having in particular 2 to 7 silicon atoms, these silicones optionally comprising alkyl or alkoxy groups having from 1 to 10 carbon atoms.

45. Kit according to claim 43 or 44, characterized in that the volatile silicone oil or oils are chosen from octamethyl cyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane and hexamethyl disiloxane. octamethyl trisiloxane, decamethyl tetrasiloxane, dodecamethyl pentasiloxane and mixtures thereof.

46. Kit according to one of claims 44 to 46, characterized in that the volatile silicone oil or oils are chosen from volatile alkyltrisiloxane linear oils of general formula (I):

where R represents an alkyl group comprising from 2 to 4 carbon atoms and one or more hydrogen atoms of which may be substituted by a fluorine or chlorine atom.

47. Kit according to one of the preceding claims, characterized in that at least one of the compositions comprises at least one volatile silicone oil selected from linear silicone oils comprising in particular from 2 to 7 silicon atoms such as hexamethyl disiloxane, octamethyl trisiloxane, cyclic silicones such as octamethylcyclotetrasiloxane, decamethylclopentasiloxane, and mixtures thereof.

48. Kit according to one of the preceding claims, characterized in that at least one of the compositions comprises the combination of at least one linear volatile silicone oil and at least one cyclic volatile silicone oil.

49. Kit according to one of claims 43 to 48, characterized in that the volatile silicone oil or oils represent from 0.5 to 50%, preferably from 5 to 40% by weight, preferably from 10 to 30% by weight relative to total weight of the composition comprising them.

50. Kit according to claim 43, characterized in that the non-volatile silicone oils are chosen from non-volatile polydimethylsiloxanes (PDMS), the polydimethylsiloxanes comprising alkyl or alkoxy groups, during and / or at the end of the silicone chain, groups each having from 2 to 24 carbon atoms, phenyl silicone oils and mixtures thereof.

51. Kit according to one of the preceding claims, characterized in that at least one of the compositions comprises at least one non-volatile silicone oil and preferably a phenyl silicone oil.

52. Kit according to claim 50 or 51, characterized in that the phenyl silicone oils have a viscosity measured at 25 ° C and atmospheric pressure ranging from 5 to 100 000 cSt, and preferably from 5 to 10 000 cSt.

53. Kit according to one of claims 50 to 52, characterized in that the oil

phenyl silicone corresponds to the following formula (A):

in which R ₉ and R ₁₂ are each independently an alkyl radical

C ₁ -C 30, an aryl radical or an aralkyl radical,

- R ₁₀ and R ₁₁ are each independently a C ₁ -C ₃₀ alkyl radical or an aralkyl radical, - u, v, w and x are each independently integers from 0 to 900, provided that the sum of v + w + x is different from 0 and the sum u + v + w + x is from 1 to 900, in particular, u + v + w + x is from 1 to 800.

54. Kit according to claim 53, characterized in that Rg is a C ₁ -C ₂₀ alkyl radical, a phenyl radical or an aralkyl radical of the R'-C ₆ H _{5 type} , R 'being a C ₁ - alkyl. C ₅ , R ₁₀ and R ₁₁ are each independently a C ₁ -C ₂₀ alkyl radical or an aralkyl radical of the R'-CβHs type, R 'being a C ₁ -C ₅ alkyl, and R ₁₂ is an alkyl radical C ₁ -C ₂₀ .

55. Kit according to one of the preceding claims, characterized in that at least one of the compositions, preferably the first composition, comprises at least one non-volatile silicone oil.

56. Kit according to claim 55, characterized in that the non-volatile silicone oil is a phenyl silicone oil.

Kit according to claim 55 or 56, characterized in that the phenyl silicone oil has a viscosity of less than 500 cSt at 25 ° C.

58. Kit according to one of claims 50 to 57, characterized in that the non-volatile oil or oils represent from 0.5 to 80%, preferably from 5 to 70%, better from 10 to 60% and better still, from 20 to 50% of the total weight of the composition comprising them.

59. Kit according to any one of the preceding claims, characterized in that the first and second compositions are anhydrous.

60. Kit according to any one of the preceding claims, characterized in that the first and second compositions are packaged separately in the same packaging article.

61. A cosmetic eyelash coating process comprising applying to said eyelashes at least one layer of a mixture of a first composition and a second composition, each of the first and second compositions comprising at least one compound X and / or at least one compound Y, and optionally at least one catalyst or a peroxide; at least one of the compounds X and Y being a silicone compound, said compounds X and Y being capable of reacting together by a hydrosilylation reaction, or by a condensation reaction or by a crosslinking reaction in the presence of a peroxide when they are brought into contact with each other, the compounds X, Y and the catalyst when present, or the peroxide, are not simultaneously present in the same composition, said mixture being obtained either extemporaneous before application to the eyelashes, or simultaneously with its application to the eyelashes, and at least one of said first and second compositions comprising at least one silicone oil.

62. Cosmetic eyelash coating process consisting of: a. extemporaneously mixing at least a first composition and at least a second composition, each of the first and second compositions comprising at least one compound X and / or at least one compound Y, and optionally at least one catalyst or a peroxide; at least one of the compounds X and Y being a silicone compound, the compounds X, Y and the catalyst when it is present, or the peroxide, not being simultaneously present in the same composition, said compounds X and Y being capable of reacting together by a hydrosilylation reaction, or by a condensation reaction or by a crosslinking reaction in the presence of a peroxide, when they are brought into contact with each other, and at least one of said first and second compositions comprising at least one silicone oil, then b. to apply on said eyelashes at least one layer of said mixture.

63. Cosmetic eyelash coating process, comprising the application to the eyelashes: a. at least one layer of a first composition; b. at least one layer of a second composition, each of the first and second compositions comprising at least one compound X and / or at least one compound Y, and optionally at least one catalyst or a peroxide; at least one of the compounds X and Y being a silicone compound, the compounds X, Y and the catalyst when it is present, or the peroxide, not being simultaneously present in the same composition, said compounds X and Y being capable of reacting together by a hydrosilylation reaction, or by a condensation reaction or by a crosslinking reaction in the presence of a peroxide, when they are brought into contact with each other, and at least one of said first and second compositions comprising at least one silicone oil.

64. Method according to one of the claims, characterized in that at least one of said first and second compositions comprises a catalyst

65. Method according to one of claims 61 to 64, characterized in that the first composition comprises at least one compound X and at least one compound Y, the second composition comprises at least one compound X and a catalyst, and one at least first and second compositions comprise at least one silicone oil.

66. Process according to claim 65, characterized in that the compounds X and Y are chosen from silicone compounds capable of reacting by hydrosilylation.

67. Process according to claim 65 or 66, characterized in that compound X is a polydimethylsiloxane with terminal vinyl groups and compound Y is methylhydrogensiloxane.

68. Method according to one of claims 61 to 67, characterized in that it comprises a further step of depositing on the layer or layers of compositions comprising X and Y, at least one layer of a third composition comprising a polymer. film-forming and an organic or aqueous solvent medium.

69. Eyelash coating composition comprising: at least one compound X and at least one compound Y, at least one of compounds X and Y being a silicone compound, and optionally at least one catalyst or peroxide, said compounds X and Y being capable of reacting together by a hydrosilylation reaction, condensation or crosslinking in the presence of a peroxide, when they are brought into contact with each other, and at least one silicone oil.

70. Composition according to Claim 69, characterized in that the compounds X and Y are chosen from silicone compounds capable of reacting by hydrosilylation.

71. Composition according to claim 69 or 70, characterized in that compound X is a polydimethylsiloxane with terminal vinyl groups and compound Y is methylhydrogensiloxane.