Composition comprising a polyester and a lipophilic silicone polymer

Abstract

The invention relates to a cosmetic composition comprising, in a physiologically acceptable medium, a) a polyester which is the reaction product of the following components (i), (ii) and (iii): (i) a polyglycerol-3, (ii) a dimer acid, and (iii) a fatty monoacid having from 8 to 30 carbon atoms, the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mol of polyglycerol-3, from 0.5 to 1 mol of dimer acid and from 0.1 to less than 2.0 mol of fatty monoacid, b) a lipophilic silicone polymer, said polyester and said lipophilic silicone polymer being present in a weight ratio of polyester to lipophilic silicone polymer ranging from 0.25 to 6.9. The invention also relates to a process for making up or caring for keratin materials wherein the composition is applied to the keratin materials.

Description

[0001] Description

[0002] Title: Composition comprising a polyester and a lipophilic silicone polymer

[0003] Technical field

[0004] The present invention relates to a cosmetic composition comprising a particular polyester and a lipophilic silicone polymer. It also relates to a process for caring for or making up keratin materials employing the composition.

[0005] Prior art

[0006] Products for making up or caring for the skin or the lips, such as foundations, eyeliners and lipsticks, or the eyelashes, such as mascaras, generally contain fatty substances, such as oils, waxes, pigments and / or fillers. When they are applied to the skin or the eyelashes, these compositions leave a film thereon which does not always have good resistance to water, during bathing or showering, and / or to tears, to perspiration, to sebum, or to rubbing with the fingers or against clothing. The film is thereby weakened and the make-up then no longer exhibits good stability over time.

[0007] Conversely, these compositions also have the drawback of transferring, i.e. of at least partly coming off, leaving traces on certain substrates with which they may be contacted, and especially a glass, a cup, a cigarette, a garment or the skin. This results in mediocre retention of the applied film, making it necessary to regularly repeat the application of the make-up composition. Moreover, the appearance of unacceptable marks, especially on blouse necks, may put certain women off using this type of make-up.

[0008] To improve the stability properties, it is known practice to use lipophilic silicone polymers, for instance silicone resins such as trimethylsiloxysilicates, or silicone acrylates such as the acrylate / polytrimethylsiloxymethacrylate copolymer sold under the reference Dowsil® FA 4002 ID silicone acrylate by the company Dow.

[0009] However, consumers are increasingly looking for products whose ingredients are natural or of natural origin, without abandoning the performance qualities with which they are familiar with the products used. Disclosure of the invention

[0010] It is therefore an aim of the present invention to propose a composition which does not have the above drawbacks and which leads to the formation of a film which has good transfer resistance properties, in particular when dry and in the presence of oil, and good stability, while reducing as much as possible the amount of silicone compounds.

[0011] The applicant has observed, surprisingly, that by combining a particular polyester, a lipophilic silicone polymer and a volatile alkane, as defined hereinafter, it is possible to obtain a highly stable film having good transfer resistance properties. The film exhibits very little or no transfer when dry or in the presence of oil. This combination also makes it possible to reduce the amount of silicone products, especially of lipophilic silicone polymer, or even to dispense with volatile silicone oils.

[0012] Summary of the invention

[0013] More specifically, a subject of the present invention is a composition comprising, in a physiologically acceptable medium, a) a polyester which is the reaction product of the following components (i), (ii) and (iii):

[0014] (i) at least one polyglycerol-3,

[0015] (ii) at least one dimer acid, and

[0016] (iii) at least one fatty monoacid containing from 8 to 30 carbon atoms, the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mol of polyglycerol-3, from 0.5 to 1 mol of dimer acid and from 0.1 to less than 2.0 mol of fatty monoacid, b) a lipophilic silicone polymer, said polyester and said lipophilic silicone polymer being present in a weight ratio of polyester to lipophilic silicone polymer ranging from 0.25 to 6.9.

[0017] Another subject of the invention is a process for caring for and / or making up keratin materials, comprising the application to said keratin materials of a composition as previously defined.

[0018] Detailed description

[0019] Said polyester and said lipophilic silicone polymer may advantageously be present in the composition according to the invention in a weight ratio of polyester to lipophilic silicone polymer ranging from 0.5 to 6, and preferably ranging from 0.5 to 5, preferentially ranging from 0.75 to 4.

[0020] POLYGLYCEROL-3 / DIMER ACID / FATTY MONOACID POLYESTER

[0021] The composition according to the invention comprises a polyester which is the product of reaction of the following components (i), (ii) and (iii):

[0022] (i) at least one polyglycerol-3;

[0023] (ii) at least one dimer acid; and

[0024] (iii) at least one fatty monoacid containing from 8 to 30 carbon atoms, the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mol of polyglycerol-3, 0.5 to 1 mol of dimer acid and from 0.1 to less than 2.0 mol of fatty acids.

[0025] The term “polyester” is understood to mean any polymer obtained by a condensation reaction of polycarboxylic acids with alcohols or glycols. Its macromolecular backbone contains the repetition of its ester function. The ester function denotes a characteristic group formed of an atom bonded simultaneously to an oxygen atom via a double bond and to an alkoxy group. When the bonded atom is a carbon atom, it is called a carboxylic ester, the general formula of which is R-COO-R’.

[0026] The term “polyglycerol-3” is understood to mean triglycerol alone or a mixture of polyglycerols comprising at least triglycerol, and preferably triglycerol is predominant in said mixture.

[0027] The polyesters of the invention and the synthesis thereof are described in patent applications US 2021 / 0259945, US 2021 / 0259946 and US 2021 / 0259930 in the name of the company Noury on.

[0028] According to a preferred embodiment, the polyester is a substantially or totally nonsequential reaction product.

[0029] The term “substantially non-sequential reaction product” is understood to mean the product obtained by a substantially non-sequential reaction of the reactive components (i)-(iii).

[0030] The term “totally non-sequential reaction of the reactive components (i)-(iii)” is understood to mean that the total content of each of the reactants (i)-(iii) to be reacted is added to the reaction vessel before the reaction is commenced.

[0031] In one embodiment of the present invention, the total content of each of the reactants (i)-(iii) to be reacted is added to the reaction vessel before the reaction is commenced, meaning that the reaction is completely non-sequential, and the polymer is a product of completely nonsequential reaction of the components (i)-(iii). In other embodiments, 70-100%, or 75-100%, or 80-100%, or 85-100%, or 90-100%, or 95-100%, or 97-100% of each of the reactants (i)- (iii) are added to the reaction vessel before the reaction is commenced.

[0032] In one embodiment, the polyester is prepared by a one-step process which involves the introduction of all the reactants into a reaction vessel and the subsequent induction of an entirely random addition of the dimer acid and of the fatty monoacid to the polyglycerol-3.

[0033] Polyglycerol-3 Triglycerol has the formula H-[-OGly]3-OH, in which Gly denotes a glycerol residue after removal of two hydroxyl groups.

[0034] A polyglycerol-3 according to the invention in the form of a mixture of polyglycerols containing at least triglycerol comprises polyglycerols which can be any product of oligocondensation of glycerol. They preferably correspond to the formula (I): H[-O-Gly]n-OH, in which each Gly is independently the residue of a glycerol molecule after removal of two hydroxyl groups; and n is a mean from 2 to 10.

[0035] Generally, the majority of the Gly groups are of the formula: -CH2-CHOH-CH2-, although residues comprising etherification at secondary or even tertiary hydroxyl groups are regarded as being within the scope of “Gly” and, consequently, may also be present.

[0036] Examples of polyglycerol-3 in the form of a mixture comprise diglycerol, triglycerol, tetraglycerol, pentaglycerol, hexaglycerol, heptaglycerol, octaglycerol, nonaglycerol, decaglycerol and mixtures of these. In particular, preferential polyglycerols are those of formula (I) in which n has a value in particular from 2 to 7, more particularly from 2 to 5 and notably 2, 3 or 4, or mixtures of polyglycerols in these ranges.

[0037] Particularly appropriate examples of polyglycerol-3 comprise a mixture of polyglycerols having the following distribution, in which all the weight percentages are based relative to the total weight of the polyglycerol-3 in the form of a mixture:

[0038] - glycerol: 0% to 30% by weight, preferably 0% to 20% by weight, most preferably 0% to 15% by weight;

[0039] - di glycerol: 10% to 40% by weight, preferably 15% to 35% by weight, most preferably 20% to 32% by weight;

[0040] - tri glycerol: 10% to 65% by weight, preferably 15% to 60% by weight, most preferably 18% to 55% by weight;

[0041] - tetraglycerol: 2% to 25% by weight, preferably 5% to 20% by weight, most preferably 8% to 20% by weight;

[0042] - pentaglycerol: 0% to 15% by weight, preferably 0% to 10% by weight, most preferably 0% to 5% by weight;

[0043] - hexaglycerol: 0% to 15% by weight, preferably 0% to 10% by weight, most preferably 0% to 5% by weight;

[0044] - heptaglycerol: 0% to 10% by weight, preferably 0% to 5% by weight, most preferably 0% to 3% by weight;

[0045] - octaglycerol: 0% to 10% by weight, preferably 0% to 5% by weight, most preferably 0% to 3% by weight;

[0046] - nonaglycerol: 0% to 5% by weight, preferably 0% to 3% by weight, most preferably 0% to 2% by weight;

[0047] - decaglycerol: 0% to 5% by weight, preferably 0% to 3% by weight, most preferably 0% to 2% by weight. In one embodiment, a polyglycerol-3 in the form of a mixture comprises the following distribution of polyglycerols:

[0048] Glycerol: 0% to 30% by weight;

[0049] Diglycerol: 15% to 40% by weight;

[0050] Triglycerol: 10% to 55% by weight;

[0051] Tetraglycerol: 2% to 25% by weight;

[0052] Pentaglycerol and higher components: 0% to 15% by weight relative to the total weight of the polyglycerol-3 in the form of a mixture.

[0053] In one embodiment, a polyglycerol-3 in the form of a mixture is composed of at least 40% by weight, or of at least 45% by weight, or of at least 50% by weight, of a combination of diglycerol and of triglycerol, relative to the total weight of the polyglycerol-3 in the form of a mixture.

[0054] In one embodiment, a polyglycerol-3 is composed of at least 20% by weight, or of at least 25% by weight, of diglycerol; at least 15% by weight, or at least 18% by weight, of triglycerol; at least 10% by weight, or at least 12% by weight, of tetraglycerol; in which all the weight percentages are relative to the total weight of the polyglycerol-3 in the form of a mixture.

[0055] A particularly preferred polyglycerol-3 comprises at least 25% by weight of diglycerol, at least 45% by weight of tri glycerol and at least 10% by weight of tetraglycerol, relative to the total weight of the polyglycerol-3 in the form of a mixture.

[0056] The analysis of such a polyglycerol-3 composition may be performed so as to determine its median or “mean” polyglycerol number. The above examples of polyglycerols with narrow and broad distributions can also be denoted as polyglycerol-3 because it is a matter of the integer closest to the mean and / or median.

[0057] Dimer acid

[0058] The dimer acid may be any dicarboxylic acid containing at least 4 carbon atoms. They may be linear or branched, for instance the dimers prepared from malonic acid, succinic acid, fumaric acid, dimethylglutaric acid or trimethyladipic acid, and from anhydrides thereof. Dimer fatty acids are particularly useful. As is known, these are mixtures of acyclic and cyclic dicarboxylic acids which are obtained by a catalysed dimerization reaction of unsaturated fatty acids containing from 12 to 22 carbon atoms.

[0059] For the preparation and use of dimer acids and their physical and chemical properties, reference will be made to the publication “The Dimer Acids: The chemical and physical properties, reactions and applications", Ed. E.C. Leonard; Humko Sheffield Chemical, 1975, Memphis, Tenn.

[0060] The dicarboxylic acids may also contain, to a lesser extent, tri- and polyfunctional carboxylic acids. The functionality of the mixture must not exceed a mean molar value of 2.4.

[0061] The preferred dimer acids are typically derived from triglycerides rich in Cl 8 ester groups, which can be hydrolysed to produce unsaturated C 18 fatty monoacids. The starting materials may be derived from tallow oil and rapeseed oil, but other natural sources, such as flax seeds, soybean, pumpkin and walnut, may be used. The target monoacids used in the reaction are rich in oleic and linoleic acid forms described in the list of fatty acids contained below. Dimerization results mainly in the dimerization of unsaturated fatty acids, but trimers are also formed. After reaction, the product may be stored in the form of a mixture of reaction products or it may be further distilled or otherwise separated into molecular weight fractions. In one embodiment, the dimerization reaction produces a predominance (at least 60% by weight, more preferably at least 75% by weight) of dimer acid (C36 diacid) but also produces C54 trimer acids (less than 30% by weight, more preferably less than 25% by weight).

[0062] In one case, a standard dimer acid commercially available from Croda, Pripol 1025®, which contains 72% by weight of dimer and 19% by weight of trimer acid, is used.

[0063] In another case, a standard hydrogenated dimer acid from Oleon, Radiacid 0960®, which contains 87% by weight of dimer and 10% by weight of trimer acid, is used. In both cases, the polymer as described is characterized by a higher molecular weight, a more hydrophobic nature and a higher viscosity than those which can be provided by pure diacids of lower molecular weight. The presence of trimer acid further improves the molecular weight and the performance qualities of these polymers.

[0064] In one embodiment, the copolymer of the present invention is prepared from at least one hydrogenated dimer acid.

[0065] In another embodiment, the polymer is prepared from a hydrogenated dimer acid comprising hydrogenated dimerized Cl 8 fatty acids, which hydrogenated dimer acid is obtained by dimerization of unsaturated Cl 8 fatty acids and subsequent hydrogenation.

[0066] In one embodiment, the hydrogenated dimer acid has a content of trimer acid ranging from about 5% to 25% by weight, based on the total weight of hydrogenated dimer acid.

[0067] In another embodiment, the hydrogenated dimer acid contains a predominance (at least 60% by weight, more preferentially at least 75% by weight, but not more than 95% by weight, or better still not more than 90% by weight, or even better still not more than 85% by weight) of hydrogenated dimer acid (C36 diacid) and also contains hydrogenated C54 trimer acids (less than 30% by weight, more preferably less than 25% by weight, but more than 5% by weight, more preferably more than 10% by weight).

[0068] Fatty monoacid

[0069] The C8-C30 fatty monoacids may include natural or refined fatty acids, such as hydrolysed rapeseed oil, sunflower oils, and the like, but these contain both lower and higher MW chains. Useful fatty monoacids may be linear, branched, saturated, unsaturated and aromatic materials with an acidity provided by carboxylic acid fractions.

[0070] Acids that are suitable for the invention comprise caprylic acid (C8), pelargonic acid (C9), capric acid (CIO), undecylic acid (Cl l), lauric acid (C12), tridecylic acid (C13), myristic acid (Cl 4), pentadecylic acid (Cl 5), palmitic acid (Cl 6), margaric acid (Cl 7), stearic acid (Cl 8), isostearic acid (Cl 8), nonadecylic acid (Cl 9), arachidic acid (C20), behenic acid (C22) and lignoceric acid (C24).

[0071] The comparison of stearic acid and isostearic acid shows that the branching leads to an elevated melting point and results in a low viscosity at ambient temperature for isostearic acid, compared to a solid material for stearic acid. This lower viscosity can be useful in the handling of starting materials and also to make it possible for the esters manufactured with this acid to retain their liquid properties. Branched-chain fatty acids often contain a single methyl branch along the linear carbon chain and are produced in nature by microbial action. Isostearic acid is available as a reaction byproduct in the creation of the dimer acid described above.

[0072] Another way to obtain a liquid product involves using unsaturated, linear and branched, fatty monoacids. These unsaturated acids can include palmitoleic acid (C16: l), vaccenic acid (C18: l), oleic acid (C18: l), elaidic acid (C18: l), linoleic acid (C18:2), linolelaidic acid (C18: 2), a-linolenic acid (C18:3), a-linolenic acid (C18:3), stearidonic acid (C18:4), paullinic acid (C20: l), gondoic acid (C20: l), dihomo-y-linolenic acid (C20:3), mead acid (C20:3), arachidonic acid (C20:4), eicosapentaenoic acid (C20:5), erucic acid (C22:l), docosatetraenoic acid (C22:4), cervonic acid (C22:6) and nervonic acid (C24: l). As is well known to a person skilled in the art, the designation means that the length of the carbon chain is X carbon atoms and that there are Y double bonds in the chain.

[0073] In one embodiment, isostearic acid will be preferred.

[0074] In a particularly preferred embodiment, the polyester of the invention is a product of substantially or totally non- sequent! al reaction of the following components:

[0075] (i) at least one polyglycerol-3 in the form of a mixture comprising at least 25% by weight of di glycerol, at least 45% by weight of tri glycerol and at least 10% by weight of tetraglycerol, relative to the total weight of polyglycerol-3 in the form of a mixture;

[0076] (ii) at least one hydrogenated dimer acid containing at least 60% by weight of hydrogenated C36 diacid and 5% to 25% by weight of hydrogenated C54 triacid, in each case relative to the total weight of hydrogenated acid; and iii) isostearic acid.

[0077] In one embodiment, the polyester is prepared by a one-step process which involves the introduction of all the reactants into a reaction vessel and the subsequent induction of an entirely random addition of the dimer acid and of isostearic acid to the polyglycerol-3.

[0078] In one embodiment, it is preferable to have a total degree of esterification of the available polyglycerol hydroxyl fragments (total esterification) of from 24% to 74% and a degree of esterification of the available polyglycerol hydroxyl fragments by a dimer acid alone (esterification with a dimer acid) of from 20% to 40%. Even more importantly, the degree of esterification by end-cap units (esterification with a monoacid) is also defined in this description and it is important to maintain the esterification with a monoacid from 4% to 40%. It is preferable to have a total esterification of 28% to 57% with an esterification with an dimer acid of 20% to 30% and an esterification with a monoacid of between 8% and 27%.

[0079] It is even more preferable to have a total esterification of 33% to 48% with an esterification with a dimer acid of 20% to 28% and an esterification with a monoacid of between 13% and 20%.

[0080] It is even more preferable to have a total esterification of 24% to 74% with an esterification with a hydrogenated dimer acid of 20% to 40% and an esterification with a monoacid of between 4% and 40%.

[0081] It is even more preferable to have a total esterification of 28% to 57% with an esterification with a hydrogenated dimer acid of 20% to 30% and an esterification with a monoacid of between 8% and 27%.

[0082] It is also even more preferable to have a total esterification of about 40% with an esterification with a hydrogenated dimer acid of about 20% and an esterification with a monoacid of about 20%.

[0083] It is also even more preferable to have also most preferably a total esterification of about 40% with an esterification with a hydrogenated dimer acid of about 27% and an esterification with a monoacid of about 13%.

[0084] In one embodiment, the reacted components are in a molar ratio of 1 mol of polyglycerol-3, 0.5 to 1 mol of dimer acid and 0.2 to 1.7 mol of fatty acid.

[0085] In another embodiment, the reacted components are in a molar ratio of 1 mol of polyglycerol - 3, 0.5 to 0.75 mol of dimer acid and 0.4 to 1.35 mol of isostearic acid.

[0086] In another embodiment, the reacted components are in a molar ratio of 1 mol of polyglycerol - 3, 0.5 to 0.7 mol of dimer acid and 0.65 to 1 mol of isostearic acid.

[0087] In another embodiment, the reacted components are in a molar ratio of 1 mol of polyglycerol - 3, 0.5 to 1 mol of hydrogenated dimer acid and 0.2 to 1.7 mol of isostearic acid.

[0088] In another embodiment, the reacted components are in a molar ratio of 1 mol of polyglycerol - 3, 0.5 to 0.75 mol of hydrogenated dimer acid and 0.4 to 1.35 mol of isostearic acid.

[0089] In another embodiment, the reacted components are in a molar ratio of 1 mol of polyglycerol - 3, 0.5 to 0.7 mol of hydrogenated dimer acid and 0.65 to 1 mol of isostearic acid.

[0090] In another embodiment, the reacted components are in a molar ratio of 1 mol of polyglycerol - 3, 0.5 to 1 mol of hydrogenated dimer acid and 0.2 to 1.7 mol of isostearic acid.

[0091] In another embodiment, the reacted components are in a molar ratio of 1 mol of polyglycerol - 3, 0.5 to 0.75 mol of hydrogenated dimer acid and 0.4 to 1.35 mol of isostearic acid.

[0092] In another embodiment, the reacted components are in a molar ratio of 1 mol of polyglycerol - 3, 0.5 to 0.7 mol of hydrogenated dimer acid and 0.65 to 1 mol of isostearic acid.

[0093] In another embodiment, the reacted components are in a molar ratio of 1 mol of polyglycerol - 3, 0.67 mol of hydrogenated C36 dimer acid and 0.67 mol of isostearic acid.

[0094] In a particularly preferred embodiment, the reacted components are in a molar ratio of 1 mol of poly glycerol-3, 0.5 mol of hydrogenated C36 dimer acid and 1 mol of isostearic acid. By adjusting the molar ratio of the termination of the fatty acids and by balancing the amount of polyglycerol-3 and of dimer acid, it is also possible to control the degree of dimer acid- polyglycerol extension and the termination so that crosslinking, for example, via the acid trimer, results in much higher viscosities.

[0095] The target viscosity of the pure polymer must be > 50 000 mPa.s and less than 5 000 000 mPa.s at 25°C.

[0096] In one preferred embodiment, the target viscosity is > 75 000 mPa.s and < 2 500 000 mPa.s at 25°C.

[0097] In another preferred embodiment, the target viscosity is > 100 000 mPa.s and < 2 000 000 mPa.s at 25°C.

[0098] In a most preferred embodiment, the target viscosity is > 1 000 000 mPa.s and < 2 000 000 mPa.s at 25°C.

[0099] The viscosity is measured using an MCR3O2® rheometer from Anton Paar Inc. Rough or smooth twin flat plates 50 mm in diameter were used, covered with a polymer sample, adjusted to a gap of 0.5 to 1 mm, and temperature and shear rate scans were performed. The polyesters of the invention have Newtonian behaviour and thus have a constant viscosity over a wide range of shear rates. In addition, the polymers of this description demonstrated a reduced viscosity with temperature. Thus, the viscosity measurements are reported at a precisely controlled temperature and generally in the form of a shear rate of 1. The values are reported in mPa.s.

[0100] The polyesters of the invention are characterized by weight-average molecular masses > 2500 Da and < 1 000 000 Da, measured by GPC using linear polystyrene standards.

[0101] The GPC column used for these tests was made up of: Phenolgel, 300 x 4.6 mm; a continuous tetrahydrofuran (THF) phase was used and injected at 0.35 ml / min, column oven maintained at 40°C; a 50 pl injection and a Wyatt Ri refractive index detector. The calibration standards used were strictly linear polystyrene intended to be monodisperse. The narrow range polystyrene GPC calibration standards were prepared as a mobile phase and had maximum molecular weights of 1 290 000 Da, 560 000 Da, 65 500 Da, 28 500 Da, 10 100 Da, 1680 Da, 580 Da and 208 Da. Using standard methodologies, the weight- and number-average molecular mass is automatically calculated with standard GPC software.

[0102] In a preferred embodiment, the polyesters described have a weight-average molecular weight > 4000 Da and < 250 000 Da, measured by GPC using linear polystyrene standards. In a most preferred embodiment, the polymers described have a weight-average molecular weight > 5000 Da and < 150 000 Da, measured by GPC using linear polystyrene standards. In yet another embodiment, the polyester of the invention has a combination of weightaverage molecular mass > 5000 Da and < 150 000 Da, measured by GPC using linear polystyrene standards, and of viscosity at 25°C > 100 000 mPa.s and < 2 000 000 mPa.s.

[0103] In a preferred embodiment, the polyester of the invention is a substantially or totally nonsequential reaction product of the following components: (i) at least one polyglycerol-3 comprising at least 25% by weight of diglycerol, at least 45% by weight of tri glycerol and at least 10% by weight of tetraglycerol, in each case relative to the total weight of polyglycerol-3 in the form of a mixture;

[0104] (ii) at least one hydrogenated dimer acid containing at least 60% by weight of hydrogenated C36 diacid and 5% to 25% by weight of hydrogenated C54 triacid, in each case relative to the total weight of hydrogenated acid; and

[0105] (iii) isostearic acid; in which the polymer has a combination of weight-average molecular mass > 5000 Da and < 15 000 Da, measured with GPC using linear polystyrene standards, and of viscosity of the pure polymer > 100 000 mPa.s and < 2 000 000 mPa.s at 25°C; and in which the copolymer is also characterized by a total esterification of about 40%, an esterification with a hydrogenated dimer acid of about 27% and an esterification with a monoacid of about 13%.

[0106] In practice, given that the raw ingredients contain a range of polyglycerol units and a range of dimer and trimer acid contents, the above numbers can be adjusted using the actual (and not theoretical) hydroxyl fractions and carboxylic acid fractions, as are determined by methods such as mass spectrometry, NMR and liquid chromatography. The above esterification ranges are based on the ideal structure of the polyglycerol-3 and of the C36 dimer acid. The actual ranges may thus be slightly different from the values indicated above and may be calculated on the basis of these analytical values.

[0107] It is more practical to define the extent of the polymerization by the final acid number. The initial acid numbers, in the light of the distribution of the polyglycerol, monoacid and polyacid fractions present, can be reliably calculated using the actual acid number determined by the raw ingredient used.

[0108] For example, the initial total acid number (“AV”, which is commonly defined in mg of KOH / g of total reagent), is 135 AV. This comprises 68 AV for the dimer acid and 67 AV for the isostearic acid for a preferred embodiment containing 1 mol of polyglycerol-3, 0.5 mol of hydrogenated C36 dimer acid and 1 mol of isostearic acid. All the preferred ratio embodiments described above have a corresponding initial AV which can be calculated. When, during the polymerization reaction, the AV units are reduced, this ratio gives the percentage of conversion of the reaction from the total initial reactive acid fractions to the final residual acid fractions.

[0109] Thus, the degree of completion of the reaction is defined by (1 - final AV) / initial AV.

[0110] In one embodiment, the polyesters of the invention have final acid numbers of 0.1 to < 25 mg of KOH / g of polymer.

[0111] In a preferred embodiment, the polyesters of the invention have final acid numbers of 0.1 to < 10 mg of KOH / g of polymer.

[0112] In a most preferred embodiment, the polyesters of the invention have final acid numbers of 0.1 to < 5 mg of KOH / g of polymer. As the completion rate of the reaction is defined by the equation 1 - final AV / initial AV, the completion rate of the reaction of such mixtures to give final polymer is > 80%.

[0113] In a preferred embodiment, the degree of completion of the reaction of such mixtures to give final polymer is > 90%.

[0114] In a most preferred embodiment, the degree of completion of the reaction of such mixtures to give final polymer is > 95%.

[0115] In a preferred embodiment, the polyester of the invention is a product of reaction of a polyglycerol-3, of a hydrogenated C36 dimer acid and of isostearic acid in a molar ratio of 1 / 0.5 / 1, as described in Example 10 (copolymer) of document US 2021 / 0259945.

[0116] According to a preferred variant of the invention, the composition comprises at least one oily solution comprising: a) at least one polyester which is the product of reaction of the following components (i), (ii) and (iii):

[0117] (i) at least one polyglycerol-3;

[0118] (ii) at least one dimer acid; and

[0119] (iii) at least one fatty monoacid having from 8 to 30 carbon atoms, the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mol of polyglycerol, 0.5 to 1 mol of dimer acid and from 0.1 to less than 2.0 mol of fatty acids; and b) at least one non-volatile oil.

[0120] Said non-volatile oil(s) may be chosen from those which will be described below.

[0121] According to one advantageous embodiment, the oily solution comprises, as non-volatile oil(s), at least one fatty acid triglyceride containing from 4 to 24 carbon atoms, and more particularly a caprylic / capric acid triglyceride (INCI name: Caprylic / Capric Triglyceride). The oily solution of polyester can be obtained by mixing the polyester with the non-volatile oil(s) at about 80-100°C. The combined mixture is subsequently further cooled to 50-70°C to be discharged from the reactor and stored.

[0122] Said oily solution of polyester preferably contains the polyester at a concentration of 10% to 99% by weight, more preferentially of 30% to 90% by weight, more particularly of 50% to 80% by weight, relative to the total weight of the mixture.

[0123] According to a preferred embodiment, the oily solution comprises 40% by weight of caprylic / capric acid triglyceride and 60% by weight of polyester of polyglycerol-3, of hydrogenated C36 dimer acid and of isostearic acid, relative to the total weight of the oily solution, in a mole ratio of 1 / 0.5 / 1, as described in Example 10 (copolymer) and Example 28 (oily mixture) of US 2021 / 0259945.

[0124] According to a particularly preferred form of the invention, the composition comprises an oily solution comprising: a) a polyester obtained by reaction

[0125] (i) of a polyglycerol-3, and

[0126] (ii) of a hydrogenated C36 acid dimer, and (iii) of isostearic acid; the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mol of polyglycerol-3, 0.5 to 1 mol of dimer acid and from 0.1 to less than 2.0 mol of isostearic acid; and b) a caprylic / capric acid triglyceride.

[0127] Such a mixture has the INCI name: Diisostearoyl Polyglyceryl-3 Dimer Dilinoleate (and) Caprylic / Capric Triglyceride.

[0128] One such oily solution is sold under the name Solamaze Natural® by the company Noury on, comprising 60% by weight, as active material, of polyester and 40% by weight of a triglyceride of caprylic / capric acids, relative to the total weight of the oily solution.

[0129] The polyester may be present in the composition according to the invention in an amount ranging from 1% to 30% by weight, preferably ranging from 2% to 20% by weight, and preferentially ranging from 3% to 15% by weight, relative to the total weight of the composition.

[0130] LIPOPHILIC SILICONE POLYMER

[0131] The composition according to the invention comprises a lipophilic silicone polymer. A “lipophilic polymer” is understood to mean a polymer which is soluble or dispersible in the oils.

[0132] The lipophilic silicone polymers used according to the invention may be chosen from silicone resins, silicone polyamides, vinyl polymers comprising a carbosiloxane dendrimerbased unit, silicone acrylate copolymers, and mixtures thereof.

[0133] Silicone resins

[0134] According to one variant embodiment, a composition according to the invention may comprise, as lipophilic silicone polymer, at least one silicone resin.

[0135] More generally, the term “resin” means a compound whose structure is three-dimensional. "Silicone resins" are also known as "siloxane resins". Thus, for the purposes of the present invention, a polydimethylsiloxane is not a silicone resin.

[0136] The nomenclature of silicone resins (also referred to as siloxane resins) is known under the name "MDTQ", the resin being described as a function of the various siloxane monomer units which it comprises, each of the letters "MDTQ" characterizing one type of unit.

[0137] The letter “M” represents the monofunctional unit of formula RlR2R3SiOi / 2, the silicon atom being bonded to just one oxygen atom in the polymer comprising this unit.

[0138] The letter “D” means a difunctional unit RlR2SiO2 / 2 in which the silicon atom is bonded to two oxygen atoms.

[0139] The letter “T” represents a trifunctional unit of formula RlSiO3 / 2.

[0140] Such resins are described, for example, in the Encyclopedia of Polymer Science and Engineering, vol. 15, John Wiley and Sons, New York, (1989), pp. 265-270, and US 2 676 182, US 3 627 851, US 3 772 247, US 5 248 739 or else US 5 082 706, US 5 319 040, US 5 302 685 and US 4 935 484.

[0141] In the units M, D and T defined previously, R, namely R1 and R2, represents a hydrocarbon radical (especially alkyl) containing from 1 to 10 carbon atoms, a phenyl group, a phenylalkyl group or a hydroxyl group.

[0142] Finally, the letter Q means a tetrafunctional unit SiO4 / 2in which the silicon atom is bonded to four oxygen atoms, which are themselves bonded to the rest of the polymer.

[0143] Various silicone resins with different properties can be obtained from these different units, the properties of these polymers varying as a function of the type of monomer (or units), of the nature and number of the R radical, of the length of the polymer chain, of the degree of branching and of the size of the pendent chains.

[0144] As silicone resins that may be used in the compositions according to the invention, use may be made, for example, of silicone resins of MQ type, of T type or of MQT type.

[0145] MQ resins:

[0146] As examples of silicone resins of MQ type, mention may be made of the alkylsiloxysilicates of formula [(Rl )3SiOi / 2]x(SiO4 / 2)y(MQ units) in which x and y are integers ranging from 50 to 80, and such that the group Rl represents a radical as defined previously, and is preferably an alkyl group having from 1 to 8 carbon atoms or a hydroxyl group, preferably a methyl group.

[0147] As examples of solid silicone resins of MQ type of trimethylsiloxysilicate type, mention may be made of those sold under the reference SRI 000 by the company General Electric, under the reference TMS 803 by the company Wacker, under the name KF-7312J or KF-9021-ID by the company Shin-Etsu, DC 749, DC 593 by the company Dow Corning, SILSOFT® 74 FLUID by the company Momentive Performance Materials.

[0148] As silicone resins comprising MQ siloxysilicate units, mention may also be made of phenylalkylsiloxysilicate resins, such as phenylpropyldimethylsiloxysilicate (Silshine 151 sold by the company General Electric). The preparation of such resins is notably described in patent US 5 817 302.

[0149] T resins:

[0150] As examples of silicone resins of T type, mention may be made of the polysilsesquioxanes of formula (RSiO3 / 2)x(T units) in which x is greater than 100 and such that the group R is an alkyl group having from 1 to 10 carbon atoms, it being possible for said polysilsesquioxanes to further comprise Si-OH end groups.

[0151] Preferably, use may be made of polymethylsilsesquioxane resins in which R represents a methyl group, such as, for example, those sold:

[0152] - by the company Wacker under the reference Resin MK, such as Belsil PMS MK: polymer comprising CH3SiO3 / 2 repeating units (units T), which may also comprise up to 1% by weight of (CH3)2SiO2 / 2 units (units D) and having an average molecular weight of about 10 000 g / mol, or

[0153] - by the company Shin-Etsu under the reference KR-220L, which are composed of units T of formula CH3SiO3 / 2and have Si-OH (silanol) end groups, under the reference KR-242A, which comprise 98% of units T and 2% of dimethyl units D and have Si-OH end groups, or alternatively under the reference KR-251 comprising 88% of units T and 12% of dimethyl units D and have Si-OH end groups.

[0154] MQT resins:

[0155] Resins comprising MQT units that are notably known are those mentioned in US 5 110 890. A preferred form of resins of MQT type are MQT-propyl (also known as MQTPr) resins. Such resins that may be used in the compositions according to the invention are notably those described and prepared in patent application WO 2005 / 075542.

[0156] The MQ-T-propyl resin preferably comprises the units:

[0157] (i) (Rl3SiOi / 2)a

[0158] (ii) (R22SiO2 / 2)b

[0159] (iii) (R3SiO3 / 2)cand

[0160] (iv) (SiO4 / 2)dwith Rl, R2 and R3 independently representing a hydrocarbon radical (especially alkyl) having from 1 to 10 carbon atoms, a phenyl group, a phenylalkyl group or a hydroxyl group and preferably an alkyl radical having from 1 to 8 carbon atoms or a phenyl group, a being between 0.05 and 0.5, b being between zero and 0.3, c being greater than zero, d being between 0.05 and 0.6, a + b + c + d = 1, and a, b, c and d being molar fractions, provided that more than 40 mol% of the groups R3 in the siloxane resin are propyl groups. Preferably, the siloxane resin comprises the units:

[0161] (i) (Rl3SiOi / 2)a

[0162] (iii) (R3SiO3 / 2)cand

[0163] (iv) (SiO4 / 2)d

[0164] With R1 and R3 independently representing an alkyl group having from 1 to 8 carbon atoms, R1 preferably being a methyl group and R3 preferably being a propyl group, a being between 0.05 and 0.5 and preferably between 0.15 and 0.4, c being greater than zero, preferably between 0.15 and 0.4, d being between 0.05 and 0.6, preferably between 0.2 and 0.6, or alternatively between 0.2 and 0.55, a + b + c + d = l and a, b, c and d being molar fractions, provided that more than 40 mol% of the groups R3 in the siloxane resin are propyl groups. The siloxane resins that may be used according to the invention may be obtained via a process comprising the reaction of:

[0165] A) an MQ resin comprising at least 80 mol% of (Rl3SiOi / 2)aand (SiO4 / 2)d units,

[0166] R1 representing an alkyl group having from 1 to 8 carbon atoms, an aryl group, a carbinol group or an amino group, a and d being greater than zero, the ratio a / d being between 0.5 and 1.5; and

[0167] B) a T-propyl resin comprising at least 80 mol% of (R3SiO3 / 2)cunits,

[0168] R3 representing an alkyl group having from 1 to 8 carbon atoms, an aryl group, a carbinol group or an amino group, c being greater than zero, provided that at least 40 mol% of the groups R3 are propyl groups, where the mass ratio A / B is between 95:5 and 15:85 and preferably the mass ratio A / B is 30:70. Advantageously, the mass ratio A / B is between 95:5 and 15:85. Preferably, the ratio A / B is less than or equal to 70:30. These preferred ratios have proved to allow comfortable coatings owing to the absence of percolation of the rigid particles of MQ resin in the coating.

[0169] Thus, preferably, the silicone resin is chosen from the group comprising: a) a resin of MQ type, chosen especially from (i) alkylsiloxysilicates, which may be trimethylsiloxysilicates, of formula [(Rl)3SiOi / 2]x(SiO4 / 2)y, in which x and y are integers ranging from 50 to 80, and such that the group R1 represents a hydrocarbon radical containing from 1 to 10 carbon atoms, a phenyl group, a phenylalkyl group or a hydroxyl group, and preferably is an alkyl group containing from 1 to 8 carbon atoms, preferably a methyl group, and (ii) phenylalkylsiloxysilicate resins, such as phenylpropyldimethylsiloxysilicate, and / or b) a resin of T type, chosen especially from the polysilsesquioxanes of formula (RSiO3 / 2)x, in which x is greater than 100 and the group R is an alkyl group containing from 1 to 10 carbon atoms, for example a methyl group, it being possible for said polysilsesquioxanes to further comprise Si-OH end groups, and / or c) a resin of MQT type, especially of MQT-propyl type, which may comprise units (i) (Rl3SiO1 / 2)a, (ii) (R22SiO2 / 2)b, (iii) (R3SiO3 / 2)cand (iv) (SiO4 / 2)d, with Rl, R2 and R3 independently representing a hydrocarbon radical, notably alkyl, containing from 1 to 10 carbon atoms, a phenyl group, a phenylalkyl group or else a hydroxyl group and preferably an alkyl radical containing from 1 to 8 carbon atoms or a phenyl group, a being between 0.05 and 0.5, b being between zero and 0.3, c being greater than zero, d being between 0.05 and 0.6, a + b + c + d = l, a, b, c and d being molar fractions, provided that more than 40 mol% of the groups R3 in the siloxane resin are propyl groups. Preferably, the silicone resin is chosen from polymethylsilsesquioxanes, siloxysilicate resins, more particularly trimethylsiloxysilicate resins.

[0170] Polyamide silicone block polymer

[0171] According to another variant embodiment, a composition according to the invention comprises, as lipophilic silicone polymer, at least one polyamide silicone block polymer, also known as a silicone polyamide. The silicone polyamides are preferably solid at room temperature (25°C) and atmospheric pressure (760 mmHg).

[0172] For the purposes of the invention, the term “polymer” means a compound having at least 2 repeating units, preferably at least 3 repeating units and better still

[0173] 10 repeating units.

[0174] The silicone polyamides of the composition of the invention may be polymers of the polyorganosiloxane type, for instance those described in documents US-A-5 874 069, US-A-5 919 441, US-A-6 051 216 and US-A-5 981 680. According to the invention, the silicone polymers may belong to the following two families:

[0175] (1) polyorganosiloxanes including at least two amide groups, these two groups being located in the polymer chain, and / or

[0176] (2) polyorganosiloxanes including at least two amide groups, these two groups being located on grafts or branches.

[0177] The silicone polymers may more particularly be polymers comprising at least one unit corresponding to the general formula I:

[0178] [Chem 1] in which R4, R5, R6 and R7, which are identical or different, represent a group chosen from: saturated or unsaturated, linear, branched or cyclic Ci to C40hydrocarbon groups, which may contain in their chain one or more oxygen, sulfur and / or nitrogen atoms, and which may be partially or totally substituted by fluorine atoms,

[0179] C6to Cio aryl groups, optionally substituted by one or more Cl to C4 alkyl groups, the polyorganosiloxane chains possibly containing one or more oxygen, sulfur and / or nitrogen atoms, the groups X, which are identical or different, represent a linear or branched Cl to C30 alkylenediyl group, possibly containing in its chain one or more oxygen and / or nitrogen atoms,

[0180] Y is a linear or branched, saturated or unsaturated Cl to C50 divalent alkylene, arylene, cycloalkylene, alkylarylene or arylalkylene group, which may include one or more oxygen, sulfur and / or nitrogen atoms, and / or which may bear as substituent one of the following atoms or groups of atoms: fluorine, hydroxyl, C3 to C8 cycloalkyl, Cl to C40 alkyl, C5 to CIO aryl, phenyl optionally substituted with 1 to 3 Cl to C3 alkyl, Cl to C3 hydroxyalkyl and Cl to C6 aminoalkyl groups, or

[0181] Y represents a group corresponding to the formula:

[0182] [Chem 2] in which T represents a linear or branched, saturated or unsaturated, C3 to C24 trivalent or tetravalent hydrocarbon group optionally substituted with a polyorganosiloxane chain, and possibly containing one or more atoms chosen from O, N and S, or T represents a trivalent atom chosen from N, P and Al, and

[0183] R8 represents a linear or branched Cl to C50 alkyl group, or a polyorganosiloxane chain, possibly comprising one or more ester, amide, urethane, thiocarbamate, urea, thiourea and / or sulfonamide groups, which may possibly be linked to another chain of the polymer, the groups G, which are identical or different, represent divalent groups chosen from:

[0184] -CO-O- ;-O-CO- ; -N(R9)-CO- ;-CO-N(R9)- ; -N(R9)-SO2- ; - SO2- N(R9)- ;

[0185] -N(R9)-CO-O- ; -O-CO-N(R9)- ; -N(R9)-CS-O- ; -O-CS-N(R9)- ; -N(R9)-CO-N(R9)- ;

[0186] N(R9)-CS-N(R9)- ; -N(R9)-CO-CO-N(R9)- ; -NH-CN(H)-NH- ; -NH-CN(H)-

[0187] CN(H)-NH- where R9 represents a hydrogen atom or a linear or branched Cl to C20 alkyl group, on condition that at least 50% of the groups R9 in the polymer represent a hydrogen atom and that at least two of the groups G in the polymer are a group other than -O-CO- and -CO-O-, n is an integer ranging from 2 to 500 and preferably from 2 to 200, and m is an integer ranging from 1 to 1000, preferably from 1 to 700 and better still from 6 to 200.

[0188] According to the invention, 80% of the groups R4, R5, R6 and R7 in the polymer are preferably chosen from methyl, ethyl, phenyl and 3, 3, 3 -trifluoropropyl groups.

[0189] According to the invention, Y may represent various divalent groups, furthermore optionally comprising one or two free valencies for establishing bonds with other units of the polymer or copolymer. Preferably, Y represents a group chosen from: linear Cl to C20 and preferably Cl to CIO alkylene groups,

[0190] C30 to C56 branched alkylene groups possibly comprising rings and unconjugated unsaturations,

[0191] C5-C6 cycloalkylene groups, phenylene groups optionally substituted with one or more Cl to C40 alkyl groups,

[0192] Cl to C20 alkylene groups comprising from 1 to 5 amide groups,

[0193] Cl to C20 alkylene groups comprising one or more substituents chosen from hydroxyl, C3 to C8 cycloalkane, Cl to C3 hydroxyalkyl and Cl to C6 alkylamine groups, polyorganosiloxane chains of formula:

[0194] [Chem 3] in which R4, R5, R6, R7, T and m are as defined above, and polyorganosiloxane chains of formula: [Chem 4]

[0195] According to the second variant, the polyorganosiloxanes may be polymers comprising at least one unit corresponding to the formula (II): [Chem 5] in which R4 and R6, which are identical or different, are as defined above for the formula (I),

[0196] RIO represents a group as defined above for R4 and R6, or represents the group of formula -X-G-R12 in which X and G are as defined above for formula (I) and R12 represents a hydrogen atom or a linear, branched or cyclic, saturated or unsaturated Ci to C50hydrocarbon group optionally comprising in its chain one or more atoms chosen from O, S and N, optionally substituted with one or more fluorine atoms and / or one or more hydroxyl groups, or a phenyl group optionally substituted with one or more Ci to C4alkyl groups, R11 represents a group of formula -X-G-R12 in which X, G and R12 are as defined above, ml is an integer ranging from 1 to 998, and m2 is an integer ranging from 2 to 500.

[0197] According to the invention, the silicone polymer may be a homopolymer, i.e. a polymer including a plurality of identical units, in particular units of formula (I) or of formula (II). According to the invention, it is also possible to use a silicone polymer formed from a copolymer comprising several different units of formula (I), that is to say a polymer in which at least one of the groups R4, R5, R6, R7, X, G, Y, m and n is different in one of the units. The copolymer may also be formed from several units of formula (II), in which at least one of the groups R4, R6, RIO, R11, ml and m2 is different in at least one of the units.

[0198] It is also possible to use a polymer including at least one unit of formula (I) and at least one unit of formula (II), the units of formula (I) and the units of formula (II) possibly being identical to or different from each other.

[0199] According to one variant of the invention, it is also possible to use a polymer further comprising at least one hydrocarbon unit including two groups that are chosen from ester, amide, sulfonamide, carbamate, thiocarbamate, urea, urethane, thiourea, oxamido, guanidino and biguanidino groups, and combinations thereof.

[0200] These copolymers may be block polymers, sequenced polymers or grafted polymers.

[0201] According to one advantageous embodiment of the invention, the groups are amide groups of formula -C(O)NH- and -HN-C(O)-. In this case, the polymer may comprise at least one unit of formula (III) or (IV):

[0202] [Chem 6] or

[0203] [Chem 7] in which R4, R5, R6, R7, X, Y, m and n are as defined above.

[0204] Such a unit may be obtained: either by a condensation reaction between a silicone containing a, co-carboxylic acid ends and one or more diamines, according to the following reaction scheme:

[0205] [Chem 8] + H2N-Y-NH2

[0206] [Chem 9] or by reaction of two molecules of a-unsaturated carboxylic acid with a diamine according to the following reaction scheme:

[0207] CH2=CH-X1-CO-NH-Y-NH-CO-X1-CH=CH2followed by the addition of a siloxane to the ethylenic unsaturations, according to the following scheme:

[0208] [Chem 10]

[0209] [Chem 11] in which X1-(CH2)2- corresponds to X defined above and Y, R4, R5, R6, R7 and m are as defined above, or by reaction of a silicone containing a,co-NH2 ends and a diacid of formula HOOC-Y- COOH according to the following reaction scheme:

[0210] [Chem 12]

[0211] [Chem 13]

[0212] In these polyamides of formula (III) or (IV), m ranges from 1 to 700, in particular from 15 to 500 and notably from 50 to 200, and n ranges in particular from 1 to 500, preferably from

[0213] 1 to 100 and better still from 4 to 25, X is preferably a linear or branched alkylene chain containing from 1 to 30 carbon atoms, in particular 1 to 20 carbon atoms, notably from 5 to 15 carbon atoms and more particularly 10 carbon atoms, and

[0214] Y is preferably an alkylene chain that is linear or branched, or which may include rings and / or unsaturations, containing from 1 to 40 carbon atoms, in particular 1 to 20 carbon atoms and better still from 2 to 6 carbon atoms, in particular 6 carbon atoms.

[0215] In formulae (III) and (IV), the alkylene group representing X or Y may optionally contain in its alkylene part at least one of the following components:

[0216] 1 to 5 amide, urea, urethane or carbamate groups, a C5 or C6 cycloalkyl group, and a phenylene group optionally substituted with 1 to 3 identical or different Cl to C3 alkyl groups.

[0217] In formulae (III) and (IV), the alkylene groups may also be substituted with at least one component selected from the group consisting of: a hydroxyl group, a C3 to C8 cycloalkyl group, one to three Cl to C40 alkyl groups, a phenyl group optionally substituted with one to three Cl to C3 alkyl groups, a Cl to C3 hydroxyalkyl group, and a Cl to C6 aminoalkyl group.

[0218] In these formulae (III) and (IV), Y may also represent:

[0219] [Chem 14] where R8 represents a polyorganosiloxane chain, and T represents a group of formula:

[0220] [Chem 15]

[0221] [Chem 16] in which a, b and c are, independently, integers ranging from 1 to 10, and R13 is a hydrogen atom or a group such as those defined for R4, R5, R6 and R7.

[0222] In formulae (III) and (IV), R4, R5, R6 and R7 preferably represent, independently, a linear or branched Cl to C40 alkyl group, preferably a CH3, C2H5, n-C3H7 or isopropyl group, a polyorganosiloxane chain or a phenyl group optionally substituted with one to three methyl or ethyl groups.

[0223] As has been seen previously, the polymer may comprise identical or different units of formula (III) or (IV).

[0224] Thus, the polymer may be a polyamide containing several units of formula (III) or (IV) of different lengths, i.e. a polyamide corresponding to the formula (V): [Chem 17] in which X, Y, n and R4 to R7 have the meanings given above, ml and m2, which are different, are chosen in the range from 1 to 1000, and p is an integer ranging from 2 to 300. In this formula, the units may be structured to form either a block copolymer or a random copolymer or an alternating copolymer. In this copolymer, the units may be not only of different lengths, but also of different chemical structures, for example containing different Y groups. In this case, the polymer may correspond to the formula VI: [Chem 18] in which R4 to R7, X, Y, ml, m2, n and p have the meanings given above and Y1 is different from Y but chosen from the groups defined for Y. As previously, the various units may be structured to form either a block copolymer or a random copolymer or an alternating copolymer.

[0225] In this first embodiment of the invention, the polymer may be a graft copolymer. Thus, the polyamide containing silicone units may be grafted and optionally crosslinked with silicone chains containing amide groups. Such polymers may be synthesized with trifunctional amines. In this case, the polymer may comprise at least one unit of formula (VII):

[0226] [Chem 19]

[0227] in which XI and X2, which are identical or different, have the meaning given for X in formula (I), n is as defined in formula (I), Y and T are as defined in formula (I), R14 to R21 are groups chosen from the same group as R4 to R7, ml and m2 are numbers in the range from 1 to 1000, and p is an integer ranging from 2 to 500.

[0228] In formula (VII), it is preferred that: p is in the range from 1 to 25 and better still from 1 to 7,

[0229] R14 to R21 are methyl groups,

[0230] T corresponds to one of the following formulae: [Chem 20]

[0231] [Chem 21]

[0232] [Chem 22]

[0233] > R2JP R24>

[0234] R25[Chem 23]

[0235] > R23Al R24>

[0236] R25in which R22 is a hydrogen atom or a group chosen from the groups defined for R4 to R7, and R23, R24 and R25 are, independently, linear or branched alkylene groups, and more preferably to the formula: [Chem 24] in particular with R23, R24 and R25 representing -CH2-CH2-, ml and m2 range from 15 to 500 and better still from 15 to 45,

[0237] XI and X2 represent -(CH2)IO-, and Y represents -CH2-.

[0238] These polyamides containing a grafted silicone unit of formula (VII) may be copolymerized with polyamide-silicones of formula (II) to form block copolymers, alternating copolymers or random copolymers. The weight percentage of grafted silicone units (VII) in the copolymer may range from 0.5% to 30% by weight.

[0239] According to the invention, as has been seen previously, the siloxane units may be in the main chain or backbone of the polymer, but they may also be present in grafted or pendent chains. In the main chain, the siloxane units may be in the form of segments as described above. In the pendent or grafted chains, the siloxane units may appear individually or in segments.

[0240] According to one variant embodiment of the invention, a copolymer of silicone polyamide and of hydrocarbon-based polyamide, or a copolymer including units of formula (III) or (IV) and hydrocarbon-based polyamide units, may be used. In this case, the polyamide-silicone units may be arranged at the ends of the hydrocarbon-based polyamide.

[0241] According to one preferred embodiment, the silicone polyamide comprises units of formula III, preferably in which the groups R4, R5, R6 and R7 represent methyl groups, one of X and Y represents an alkylene group of 6 carbon atoms and the other represents an alkylene group of 11 carbon atoms, n representing the degree of polymerization, DP, of the polymer. By way of example of such silicone polyamides, mention may be made of the compounds sold by the company Dow under the name Dowsil® 2-8179 Gellant (DP 100) and Dowsil® -8178 Gellant (DP 15), the INCI name of which is Nylon-611 / dimethicone copolymers.

[0242] Advantageously, the composition according to the invention comprises at least one polydimethylsiloxane block polymer of general formula (I) having an index m with a value of about 15.

[0243] More preferably, the composition according to the invention comprises at least one polymer comprising at least one unit of formula (III) in which m ranges from 5 to 100, in particular from 10 to 75 and more particularly is around 15; even more preferably, R4, R5, R6 and R7 independently represent a linear or branched Cl to C40 alkyl group, preferably a CH3, C2H5, n-C3H7 or isopropyl group in the formula (III).

[0244] According to a preferred embodiment, use is made of the silicone polyamide polymer with the INCI name: Nylon-611 / Dimethicone copolymer, especially as sold by the company Dow Coming under the name DC 2-8179 (DP 100). As an example of a silicone polymer that may be used, mention may be made of one of the silicone polyamides obtained in accordance with Examples 1 to 3 of document

[0245] US-A-5 981 680.

[0246] Vinyl polymer comprising at least one carbosiloxane dendrimer-based unit

[0247] According to one particular embodiment, a composition used according to the invention may comprise, as lipophilic silicone polymer, at least one vinyl polymer comprising at least one carbosiloxane dendrimer-based unit.

[0248] The vinyl polymer used according to the invention especially has a backbone and at least one side chain, which comprises a carbosiloxane dendrimer-based unit having a carbosiloxane dendrimer structure.

[0249] Vinyl polymers comprising at least one carbosiloxane dendrimer unit as are described in patent applications WO03 / 045337 and EP 963 751 by the company Dow Corning may be used in particular.

[0250] In the context of the present invention, the term “carbosiloxane dendrimer structure” represents a molecular structure containing branched groups of high molecular masses, said structure having high regularity in the radial direction starting from the bond to the backbone. Such carbosiloxane dendrimer structures are described in the form of a highly branched siloxane-silylalkylene copolymer in the laid-open Japanese patent application Kokai 9- 171,154.

[0251] A vinyl polymer according to the invention may contain carbosiloxane dendrimer-based units that may be represented by the following general formula:

[0252] [Chem 25] in which R1represents an aryl group or an alkyl group possessing from 1 to 10 carbon atoms, and X1represents a silylalkyl group which, when i = 1, is represented by the formula: [Chem 26] in which R1is as defined above, R2represents an alkylene group possessing from 2 to 10 carbon atoms, R3represents an alkyl group possessing from 1 to 10 carbon atoms, X1+1represents a hydrogen atom, an alkyl group possessing from 1 to

[0253] 10 carbon atoms, an aryl group, or the silylalkyl group defined above with i = i + 1; i is an integer from 1 to 10 which represents the generation of said silylalkyl group, and a1is an integer from 0 to 3; Y represents a radical-polymerizable organic group that is chosen from: organic groups which contain a methacrylic group or an acrylic group and are represented by the formulae:

[0254] [Chem 27] and

[0255] [Chem 28] in which R4represents a hydrogen atom or an alkyl group, R5represents an alkylene group possessing from 1 to 10 carbon atoms, such as a methylene group, an ethylene group, a propylene group or a butylene group, the methylene group and the propylene group being preferred; and organic groups which contain a styryl group and are represented by the formula: [Chem 29] in which R6represents a hydrogen atom or an alkyl group, R7represents an alkyl group possessing from 1 to 10 carbon atoms, such as a methyl group, an ethyl group, a propyl group or a butyl group, the methyl group being preferred, R8represents an alkylene group possessing from 1 to 10 carbon atoms, such as a methylene group, an ethylene group, a propylene group or a butylene group, the ethylene group being preferred, b is an integer from 0 to 4, and c is 0 or 1 such that if c is 0, -(R8)c- represents a bond.

[0256] According to one embodiment, R1may represent an aryl group or an alkyl group possessing from 1 to 10 carbon atoms. The alkyl group may preferably be represented by a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, an isopropyl group, an isobutyl group, a cyclopentyl group or a cyclohexyl group. The aryl group can preferably be represented by a phenyl group and a naphthyl group. The methyl and phenyl groups are more particularly preferred, and the methyl group is most preferred.

[0257] A vinyl polymer containing at least one carbosiloxane dendrimer-based unit has a molecular side chain containing a carbosiloxane dendrimer structure, and may be the product of polymerization of:

[0258] (A) from 0 to 99.9 parts by weight of a vinyl monomer; and

[0259] (B) from 100 to 0.1 part by weight of a carbosiloxane dendrimer containing a radical- polymerizable organic group, represented by the general formula:

[0260] [Chem 30] in which Y represents a radical-polymerizable organic group, R1represents an aryl group or an alkyl group possessing from 1 to 10 carbon atoms, and X1represents a silylalkyl group which, when i = 1, is represented by the formula:

[0261] [Chem 31] in which R1is as defined above, R2represents an alkylene group possessing from 2 to 10 carbon atoms, R3represents an alkyl group possessing from 1 to 10 carbon atoms, X1+1represents a hydrogen atom, an alkyl group possessing from 1 to 10 carbon atoms, an aryl group, or the silylalkyl group defined above with i = i + 1; i is an integer from 1 to 10 which represents the generation of said silylalkyl group, and a1is an integer from 0 to 3; in which said radical-polymerizable organic group contained in the component (B) is chosen from: organic groups which contain a methacrylic group or an acrylic group and are represented by the formulae:

[0262] [Chem 32] and

[0263] [Chem 33] in which R4represents a hydrogen atom or an alkyl group, R5represents an alkylene group possessing from 1 to 10 carbon atoms; and organic groups which contain a styryl group and are represented by the formula: [Chem 34] in which R6represents a hydrogen atom or an alkyl group, R7represents an alkyl group possessing from 1 to 10 carbon atoms, R8represents an alkylene group possessing from 1 to 10 carbon atoms, b is an integer from 0 to 4, and c is 0 or 1, such that if c is 0, -(R8)c- represents a bond.

[0264] The monomer of vinyl type that is component (A) in the vinyl polymer is a monomer of vinyl type that contains a radical-polymerizable vinyl group. There is no particular limitation as regards such a monomer.

[0265] The following are examples of this vinyl-type monomer: methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, or a lower analogous alkyl methacrylate; glycidyl methacrylate; butyl methacrylate, butyl acrylate, n-butyl methacrylate, isobutyl methacrylate, tert-butyl acrylate, tert-butyl methacrylate, n-hexyl methacrylate, cyclohexyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, octyl methacrylate, lauryl methacrylate, stearyl acrylate, stearyl methacrylate, or a higher analogous methacrylate; vinyl acetate, vinyl propionate, or a lower analogous fatty acid vinyl ester; vinyl caproate, vinyl 2-ethylhexoate, vinyl laurate, vinyl stearate, or a higher analogous fatty acid ester; styrene, vinyltoluene, benzyl methacrylate, phenoxyethyl methacrylate, vinylpyrrolidone, or analogous aromatic vinyl monomers; methacrylamide, N- methylolmethacrylamide, N-methoxymethylmethacrylamide, isobutoxymethoxymethacrylamide, N,N-dimethylmethacrylamide, or analogous vinyl monomers that contain amide groups; hydroxyethyl methacrylate, hydroxypropyl alcohol methacrylate, or analogous vinyl monomers that contain hydroxyl groups; acrylic acid, methacrylic acid, itaconic acid, crotonic acid, fumaric acid, maleic acid, or analogous monomers of vinyl type which contain a carboxylic acid group; tetrahydrofurfuryl methacrylate, butoxyethyl methacrylate, ethoxydiethylene glycol methacrylate, polyethylene glycol methacrylate, polypropylene glycol monomethacrylate, hydroxybutyl vinyl ether, cetyl vinyl ether, 2-ethylhexyl vinyl ether, or an analogous vinyl monomer with ether linkages; methacryloxypropyltrimethoxysilane, polydimethylsiloxane bearing a methacrylic group on one of its molecular ends, poly dimethylsiloxane bearing a styryl group on one of its molecular ends, or an analogous silicone compound possessing unsaturated groups; butadiene; vinyl chloride; vinylidene chloride; methacrylonitrile; dibutyl fumarate; anhydrous maleic acid; anhydrous succinic acid; methacrylyl glycidyl ether; an organic salt of an amine, an ammonium salt, and an alkali metal salt of methacrylic acid, itaconic acid, crotonic acid, maleic acid, or fumaric acid; a radical-polymerizable unsaturated monomer possessing a sulfonic acid group such as a styrenesulfonic acid group; a quaternary ammonium salt derived from methacrylic acid such as 2-hydroxy-3- methacryloxypropyltrimethylammonium chloride; and a methacrylic acid ester of an alcohol possessing a tertiary amine group such as a methacrylic acid ester of diethylamine.

[0266] Multifunctional monomers of vinyl type may also be used. The following are examples of such compounds: trimethylolpropane trimethacrylate, pentaerythrityl trimethacrylate, ethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, polyethylene glycol dimethacrylate, 1,4-butanediol dimethacrylate, 1,6- hexanediol dimethacrylate, neopentyl glycol dimethacrylate, trimethylolpropane trioxy ethylmethacrylate, tri s(2-hydroxy ethyl) isocyanurate dimethacrylate, tri s(2-hydroxy ethyl) isocyanurate trimethacrylate, polydimethylsiloxane capped with styryl groups bearing divinylbenzene groups on the two ends, or analogous silicone compounds bearing unsaturated groups.

[0267] A carbosiloxane dendrimer which is component (B) may be represented by the following formula:

[0268] [Chem 35] in which Y represents a radical-polymerizable organic group as defined previously.

[0269] The following are preferred examples of radical-polymerizable organic groups Y: an acryloxymethyl group, a 3-acryloxypropyl group, a methacryloxymethyl group, a 3 -methacryloxypropyl group, a 4-vinylphenyl group, a 3-vinylphenyl group, a 4-(2-propenyl)phenyl group, a 3-(2- propenyl)phenyl group, a 2-(4-vinylphenyl)ethyl group, a 2-(3-vinylphenyl)ethyl group, a vinyl group, an allyl group, a methallyl group and a 5- hexenyl group.

[0270] R’ is as defined previously.

[0271] X1represents a silylalkyl group that is represented by the following formula, when i is equal to one:

[0272] [Chem 36] in which R1is as defined above.

[0273] R2represents an alkylene group possessing from 2 to 10 carbon atoms, such as an ethylene group, a propylene group, a butylene group, a hexylene group or a similar linear alkylene group; a methylmethylene group, a methylethylene group, a 1 -methylpentylene group, a 1,4- dimethylbutylene group or a similar branched alkylene group.

[0274] Ethylene, methylethylene, hexylene, 1 -methylpentylene and 1,4-dimethylbutylene groups are preferred above all.

[0275] R3represents an alkyl group possessing from 1 to 10 carbon atoms, such as methyl, ethyl, propyl, butyl and isopropyl groups.

[0276] X1+1represents a hydrogen atom, an alkyl group possessing from 1 to 10 carbon atoms, an aryl group or the silylalkyl group with i = i + 1. a1is an integer from 0 to 3, and i is an integer from 1 to 10 that indicates the generation number, which represents the number of repetitions of the silylalkyl group.

[0277] For example, when the generation number is equal to one, the carbosiloxane dendrimer may be represented by the first general formula shown below, in which Y, R1, R2and R3are the same as defined above, R12represents a hydrogen atom or is identical to R1; a1is identical to a1. Preferably, the total average number of OR3groups in a molecule is within the range from 0 to 7.

[0278] When the generation number is equal to 2, the carbosiloxane dendrimer may be represented by the second general formula shown below, in which Y, R1, R2, R3and R12are the same as defined above; a1and a2represent the a1of the indicated generation. Preferably, the total average number of OR3groups in a molecule is within the range from 0 to 25.

[0279] When the generation number is equal to 3, the carbosiloxane dendrimer is represented by the third general formula shown below, in which Y, R1, R2, R3and R12are the same as defined above; a1, a2and a3represent the a1of the indicated generation. Preferably, the total average number of OR3groups in a molecule is within the range from 0 to 79.

[0280] [Chem 37] [Chem 38]

[0281] [Chem 39] A carbosiloxane dendrimer that contains a radical-polymerizable organic group may be represented by the following average structural formulae:

[0282] [Chem

[0283] [Chem

[0284] [Chem

[0285] [Chem 43]

[0286] [Chem 50]

[0287] [Chem 51]

[0288] [Chem 52]

[0289] [Chem 53]

[0290] The carbosiloxane dendrimer may be manufactured according to the process for manufacturing a branched silalkylene siloxane described in Japanese patent application Hei 9-171 154.

[0291] For example, it may be produced by performing a hydrosilylation reaction on an organosilicon compound containing a hydrogen atom linked to a silicon atom, represented by the following general formula: [Chem 54] and an organosilicon compound that contains an alkenyl group. In the above formula, the organosilicon compound may be represented by 3- methacryloxypropyltris(dimethylsiloxy)silane, 3-acryloxypropyltris- may be chosen from the polymers such that the carbosiloxane dendrimer-based unit is (dimethylsiloxy)silane, and 4-vinylphenyltris(dimethylsiloxy)silane. The organosilicon compound which contains an alkenyl group may be represented by vinyltris(trimethylsiloxy)silane, vinyltris(dimethylphenylsiloxy)silane, and

[0292] 5 -hexeny Itri s(trimethy 1 sil oxy) sil ane .

[0293] The hydrosilylation reaction is performed in the presence of a chloroplatinic acid, a complex of vinylsiloxane and platinum, or a similar transition metal catalyst.

[0294] A vinyl polymer containing at least one carbosiloxane dendrimer-based unit may be chosen from polymers such that the carbosiloxane dendrimer-based unit is a carbosiloxane dendritic structure represented by the formula (I):

[0295] [Chem 55] in which Z is a divalent organic group, p is 0 or 1, R1is an aryl or alkyl group of 1 to 10 carbon atoms and X1is a silylalkyl group represented by the formula (II):

[0296] [Chem 56] in which R1is as defined above, R2is an alkylene group of 1 to 10 carbon atoms, R3is an alkyl group of 1 to 10 carbon atoms, and X1+1is a group chosen from the group comprising hydrogen atoms, aryl groups and alkyl groups having up to 10 carbon atoms, and silylalkyl groups X1in which the exponent i is an integer from 1 to 10 indicating the generation of the silylalkyl group starting in each carbosiloxane dendritic structure with a value of 1 for the group X1in the formula (I) and the index a1is an integer from 0 to 3. In a vinyl polymer having at least one carbosiloxane dendrimer-based unit, the polymerization ratio between the components (A) and (B), in terms of the weight ratio between (A) and (B), may be within a range from 0 / 100 to 99.9 / 0.1, or even from 0.1 / 99.9 to 99.9 / 0.1 and preferably within a range from 1 / 99 to 99 / 1. A ratio between the components (A) and (B) of 0 / 100 means that the compound becomes a homopolymer of component (B). A vinyl polymer having at least one carbosiloxane dendrimer-based unit can be obtained by the copolymerization of components (A) and (B) or by the polymerization of component (B) alone.

[0297] The polymerization can be a radical polymerization or an ionic polymerization; however, radical polymerization is preferred.

[0298] The polymerization may be performed by bringing about a reaction between the components

[0299] (A) and (B) in a solution for a period of 3 to 20 hours in the presence of a radical initiator at a temperature of 50°C to 150°C.

[0300] A suitable solvent for this purpose is hexane, octane, decane, cyclohexane or a similar aliphatic hydrocarbon; benzene, toluene, xylene or a similar aromatic hydrocarbon; diethyl ether, dibutyl ether, tetrahydrofuran, dioxane or similar ethers; acetone, methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone or similar ketones; methyl acetate, ethyl acetate, butyl acetate, isobutyl acetate or similar esters; methanol, ethanol, isopropanol, butanol or similar alcohols; octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, hexamethyldisiloxane, octamethyltrisiloxane or a similar organosiloxane oligomer.

[0301] A radical initiator may be any compound known in the art for standard radical polymerization reactions. Specific examples of such radical initiators are 2,2'- azobis(isobutyronitrile), 2,2’-azobis(2-methylbutyronitrile), 2,2’-azobis(2,4-dimethylvaleronitrile) or similar compounds of azobis type; benzoyl peroxide, lauroyl peroxide, tert-butyl peroxybenzoate, tert-butyl peroxy-2-ethylhexanoate, or a similar organic peroxide. These radical initiators can be used alone or in a combination of two or more. The radical initiators can be used in an amount of 0.1 to 5 parts by weight per 100 parts by weight of the components (A) and

[0302] (B). A chain-transfer agent can be added. The chain-transfer agent may be 2-mercaptoethanol, butyl mercaptan, n-dodecyl mercaptan, 3-mercaptopropyltrimethoxysilane, a polydimethylsiloxane containing a mercaptopropyl group or a similar compound of mercapto type; methylene chloride, chloroform, carbon tetrachloride, butyl bromide,

[0303] 3 -chloropropyltrimethoxy silane, or a similar halogenated compound.

[0304] In the manufacture of the polymer of vinyl type, after the polymerization, the unreacted residual vinyl monomer may be removed under conditions of heating under vacuum.

[0305] To facilitate the preparation of a starting material mixture for cosmetic products, the numberaverage molecular mass of the vinyl polymer containing a carbosiloxane dendrimer may be chosen within the range between 3000 and 2 000 000 and preferably between 5000 and 800 000. It may be a liquid, gum, paste, solid, powder, or any other form. The preferred forms are solutions constituted by the dilution of a dispersion or of a powder in solvents.

[0306] The vinyl polymer may be a dispersion of a polymer of vinyl type having a carbosiloxane dendrimer structure in its molecular side chain, in a liquid such as a silicone oil, an organic oil, an alcohol or water.

[0307] The silicone oil may be a dimethylpolysiloxane with the two molecular ends capped with trimethylsiloxy groups, a copolymer of methylphenylsiloxane and of dimethylsiloxane having the two molecular ends capped with trimethylsiloxy groups, a copolymer of methyl- 3,3,3-trifluoropropylsiloxane and dimethylsiloxane having the two molecular ends capped with trimethylsiloxy groups, or similar unreactive linear silicone oils, and also hexamethyl-cyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopenta-siloxane, dodecamethylcyclo-hexasiloxane, or a similar cyclic compound. In addition to the unreactive silicone oils, modified polysiloxanes containing functional groups such as silanol groups, amino groups and polyether groups on the ends or within the molecular side chains may be used.

[0308] The organic oils may be isododecane, liquid paraffin, isoparaffin, hexyl laurate, isopropyl myristate, myristyl myristate, cetyl myristate, 2-octyldodecyl myristate; isopropyl palmitate, 2-ethylhexyl palmitate, butyl stearate, decyl oleate, 2-octyldodecyl oleate, myristyl lactate, cetyl lactate, lanolin acetate, stearyl alcohol, cetostearyl alcohol, oleyl alcohol, avocado oil, almond oil, olive oil, cocoa oil, jojoba oil, gum oil, sunflower oil, soybean oil, camelia oil, squalane, castor oil, cottonseed oil, coconut oil, egg yolk oil, polypropylene glycol monooleate, neopentyl glycol 2-ethylhexanoate or a similar glycol ester oil; triglyceryl isostearate, the triglyceride of a fatty acid of coconut oil, or a similar oil of a polyhydric alcohol ester; polyoxyethylene lauryl ether, polyoxypropylene cetyl ether, or a similar polyoxyalkylene ether.

[0309] The alcohol may be any type that is suitable for use in combination with a cosmetic-product starting material. For example, it may be methanol, ethanol, butanol, isopropanol or similar lower alcohols.

[0310] A solution or a dispersion of the alcohol should have a viscosity within the range from 10 to 109 mPa at 25°C. To improve the sensory use properties in a cosmetic product, the viscosity should be within the range from 100 to 5 x 108 mPa.s.

[0311] The solutions and dispersions may be readily prepared by mixing a vinyl polymer having at least one carbosiloxane dendrimer-based unit with a silicone oil, an organic oil, an alcohol or water. The liquids may be present in the step of polymerizing a polymer of vinyl type having at least one carbosiloxane dendrimer-based unit. In this case, the unreacted residual vinyl monomer should be completely removed by heat treatment of the solution or dispersion under atmospheric or reduced pressure.

[0312] In the case of a dispersion, the dispersity of the polymer of vinyl type can be improved by adding a surfactant agent.

[0313] Such an agent may be hexyl-benzenesulfonic acid, octylbenzenesulfonic acid, decylbenzenesulfonic acid, dodecylbenzenesulfonic acid, cetylbenzenesulfonic acid, myristylbenzene-sulfonic acid or anionic surfactants of the sodium salts of these acids; octyltrimethylammonium hydroxide, dodecyltrimethylammonium hydroxide, hexadecyl-trimethyl-ammonium hydroxide, octyldimethyl-benzyl-ammonium hydroxide, decyldimethylbenzylammonium hydroxide, dioctadecyldimethylammonium hydroxide, beef tallow-trimethylammonium hydroxide, coconut oil-trimethylammonium hydroxide, or a similar cationic surfactant; a polyoxyalkylene alkyl ether, a polyoxyalkylenealkylphenol, a polyoxyalkylene alkyl ester, the sorbitol ester of polyoxyalkylene, polyethylene glycol, polypropylene glycol, an ethylene oxide additive of diethylene glycol trimethylnonanol, and nonionic surfactants of polyester type, and also mixtures.

[0314] In addition, the solvents and dispersions may be combined with iron oxide suitable for use with cosmetic products, or a similar pigment, and also zinc oxide, titanium oxide, silicon oxide, mica, talc or similar inorganic oxides in powder form. In the dispersion, a mean particle diameter of the polymer of vinyl type can be within a range of between 0.001 and 100 microns and preferably between 0.01 and 50 microns. The reason for this is that, outside the recommended range, a cosmetic product mixed with the emulsion will not have a nice enough feel on the skin or to the touch, or sufficient spreading properties or a pleasant feel. A vinyl polymer contained in the dispersion or the solution can have a concentration within a range of between 0.1% and 95% by weight and preferably between 5% and 85% by weight. However, to facilitate the handling and the preparation of the mixture, the range should preferably be between 10% and 75% by weight.

[0315] According to one preferred embodiment, a vinyl polymer that is suitable for the invention may be one of the polymers described in the examples of patent application EP 0 963 751.

[0316] According to one preferred embodiment, a vinyl polymer grafted with a carbosiloxane dendrimer can result from the polymerization of:

[0317] (A) from 0.1 to 99 parts by weight of one or more acrylate or methacrylate monomers; and

[0318] (B) from 100 to 0.1 parts by weight of an acrylate or methacrylate monomer of a tris[tri(trimethylsiloxy)silylethyldimethylsiloxy]silylpropyl carbosiloxane dendrimer.

[0319] According to one embodiment, a vinyl polymer having at least one carbosiloxane dendrimerbased unit may comprise a tris[tri(trimethylsiloxy)silylethyldimethylsiloxy]silylpropyl carbosiloxane dendrimer-based unit corresponding to one of the formulae:

[0320] [Chem 57] or

[0321] [Chem 58]

[0322] According to one preferred embodiment, a vinyl polymer having at least one carbosiloxane dendrimer-based unit used in the invention comprises at least one butyl acrylate monomer. According to one embodiment, a vinyl polymer may further comprise at least one fluorinated organic group. A fluorinated vinyl polymer can be one of the polymers described in the examples of patent application WO 03 / 045337.

[0323] According to one preferred embodiment, a vinyl polymer grafted in the sense of the present invention may be conveyed in an oil or a mixture of oils, which is / are preferably volatile in particular, chosen from silicone oils and hydrocarbon oils, and mixtures thereof.

[0324] According to one particular embodiment, a silicone oil that is suitable for the invention may be cyclopentasiloxane.

[0325] According to another particular embodiment, a hydrocarbon oil that is suitable for the invention may be isododecane.

[0326] Vinyl polymers grafted with at least one carbosiloxane dendrimer-based unit that may be particularly suitable for the present invention are the polymers sold under the names TIB 4- 100, TIB 4-101, TIB 4-120, TIB 4-130, TIB 4-200, Dowsil® FA 4002 ID silicone acrylate (TIB 4-202), TIB 4-220, Dowsil® FA 4001 CM silicone acrylate (TIB 4-230), Dowsil® FA 4004 ID silicone acrylate and Dowsil® FA 4012 ID silicone acrylate by the company Dow. The polymers sold under the names Dowsil® FA 4002 ID silicone acrylate (TIB 4-202) and Dowsil® FA 4001 CM silicone acrylate (TIB 4-230) by the company Dow will preferably be used.

[0327] Preferably, the vinyl polymer grafted with at least one carbosiloxane dendrimer-based unit which can be used in a composition of the invention is an acrylate / polytrimethylsiloxymethacrylate copolymer, in particular that sold in isododecane under the name Dowsil® FA 4002 ID silicone acrylate by the company Dow Coming. Silicone acrylate copolymers

[0328] According to one particular embodiment, a composition used according to the invention may comprise, as lipophilic silicone polymer, at least one copolymer comprising carboxylate groups and polydimethylsiloxane groups.

[0329] The term “copolymer comprising carboxylate groups and polydimethylsiloxane groups” is understood to mean, in the present patent application, a copolymer obtained from (a) one or more carboxylic (acid or ester) monomers, and (b) one or more polydimethylsiloxane (PDMS) chains.

[0330] In the present patent application, the term "carboxylic monomer" means both carboxylic acid monomers and carboxylic acid ester monomers. Thus, the monomer (a) may be chosen, for example, from acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, crotonic acid, esters thereof and mixtures of these monomers. Mention may be made, as esters, of the following monomers: acrylate, methacrylate, maleate, fumarate, itaconate and / or crotonate. According to one preferred embodiment of the invention, the monomers in ester form are more particularly chosen from linear or branched, preferably C1-C24 and better still C1-C22 alkyl acrylates and methacrylates, the alkyl radical preferentially being chosen from methyl, ethyl, stearyl, butyl and 2-ethylhexyl radicals, and mixtures thereof.

[0331] Thus, according to one particular embodiment of the invention, the copolymer comprises as carboxylate groups at least one group chosen from acrylic acid, methacrylic acid, methyl, ethyl, stearyl, butyl or 2-ethylhexyl acrylates or methacrylates, and mixtures thereof.

[0332] In the present patent application, the term "polydimethylsiloxanes" (also called organopolysiloxanes or, for short, PDMS) is understood to mean, in accordance with what is generally accepted, any organosilicon polymer or oligomer of linear structure, of variable molecular weight, obtained by polymerization and / or polycondensation of suitably functionalized silanes, and constituted essentially of a repetition of main units wherein the silicon atoms are linked together via oxygen atoms (siloxane =Si-O-Si= bond), comprising trimethyl radicals directly linked via a carbon atom to said silicon atoms. The PDMS chains that may be used to obtain the copolymer used according to the invention include at least one polymerizable radical group, preferably located on at least one of the ends of the chain, i.e. the PDMS may contain, for example, a polymerizable radical group on the two ends of the chain or a polymerizable radical group on one end of the chain and a trimethyl silyl end group on the other end of the chain. The polymerizable radical group may especially be an acrylic or methacrylic group, in particular a group

[0333] CH2= CRI-CO-O-R2, in which Ri represents a hydrogen or a methyl group and R2represents -CH2-, -(CH2)n- with n = 3, 5, 8 or 10, -CH2-CH(CH3)-CH2-, CH2-CH2-O-CH2-CH2-, -CH2- CH2-O-CH2-CH2-CH(CH3)-CH2-, -CH2-CH2-O-CH2 CH2-O-CH2-CH2-CH2-.

[0334] The copolymers used in the composition of the invention are generally obtained according to the usual methods of polymerization and grafting, for example by radical polymerization (A) of a PDMS comprising at least one polymerizable radical group (for example on one of the ends of the chain or on both ends) and (B) of at least one carboxylic monomer, as described, for example, in documents US-A-5 061 481 and US-A-5 219 560. The copolymers obtained generally have a molecular weight ranging from about 3000 to 200 000 and preferably from about 5000 to 100 000.

[0335] The copolymer used in the composition of the invention may be in its native form or in dispersed form in a solvent such as lower alcohols containing from 2 to 8 carbon atoms, for instance isopropyl alcohol, or oils, for instance volatile silicone oils (for example cyclopentasiloxane) or volatile hydrocarbon oils (for example isododecane).

[0336] As copolymers that may be used in the composition of the invention, mention may be made, for example, of copolymers of acrylic acid and of stearyl acrylate bearing polydimethylsiloxane grafts, copolymers of stearyl methacrylate bearing polydimethylsiloxane grafts, copolymers of acrylic acid and of stearyl methacrylate bearing poly dimethyl siloxane grafts, and copolymers of methyl methacrylate, butyl methacrylate, 2- ethylhexyl acrylate and stearyl methacrylate bearing poly dimethyl siloxane grafts. As copolymers that may be used in the composition of the invention, mention may be made in particular of the acrylates / dimethicone (INCI name) copolymers such as those sold by the company Shin-Etsu under the names KP-550, KP-561 (CTFA name: acrylates / dimethicone copolymer), KP-541, in which the copolymer is dispersed at 60% by weight in isopropyl alcohol (CTFA name: acrylates / dimethicone copolymer and isopropyl alcohol), and KP-545, in which the copolymer is dispersed at 30% in cyclopentasiloxane (CTFA name: acrylates / dimethicone copolymer and cyclopentasiloxane). According to one preferred embodiment of the invention, preference is given to using KP-550 (CTFA name: Isododecane (and) Acrylates / Dimethicone Copolymer).

[0337] The lipophilic silicone polymer may be present in the composition according to the invention in an amount ranging from 1% to 15% by weight, preferably ranging from 1.5% to 10% by weight, and preferentially ranging from 1.7% to 5% by weight, relative to the total weight of the composition.

[0338] VOLATILE SOLVENT

[0339] The composition according to the invention may advantageously comprise a volatile solvent, more particularly a volatile oil, and preferably a volatile alkane.

[0340] The term “volatile solvent” refers to a solvent which is liquid at ambient temperature and at atmospheric pressure and which has a vapour pressure at 20-25°C ranging from 0.13 Pa to 13 000 Pa (0.001 to 100 mmHg), and preferentially ranging from 0.5 Pa to 2000 Pa (0.004 to 15 mmHg). By way of example, the vapour pressure may be measured by the static method or via effusion by isothermal thermogravimetry, depending on the vapour pressure (OECD 104 standard).

[0341] The volatile alkane may be chosen from volatile linear alkanes comprising from 8 to 14 carbon atoms and branched C8-C16 alkanes.

[0342] As examples of linear alkanes, in particular C8-C14 alkanes, mention may be made of n- octane (C8), n-nonane (C9), n-decane (CIO), n-undecane (Cl l), n-dodecane (Cl 2) and n- tridecane (C13), and mixtures thereof. Mention may notably be made of n-dodecane (C12) and n-tetradecane (C14), sold by Sasol under the respective references Parafol 12-97® and Parafol 14-97®, and also mixtures thereof. According to another embodiment, use may be made of a mixture of n-dodecane and n-tetradecane, and in particular the dodecane / tetradecane mixture sold by the company Biosynthis under the reference Vegelight 1214®. According to yet another embodiment, use may also be made of a mixture of volatile linear C9-C12 alkanes with INCI name: C9-12 Alkane, such as the product sold by the company Biosynthis under the reference Vegelight Silk® 100. According to yet another embodiment, use may be made of a mixture of n-undecane (Cl l) and n-tridecane (C13) such as those obtained in Examples 1 and 2 of patent application WO 2008 / 155059 from the company Cognis and such as the mixture sold under the trade name Cetiol Ultimate® by the company BASF.

[0343] Mention may also be made of the alkanes described in the Cognis-company patent applications WO 2007 / 068371 or WO 2008 / 155059 (mixtures of different alkanes differing by at least one carbon). These alkanes are obtained from fatty alcohols, which are themselves obtained from coconut oil or palm oil.

[0344] As branched C8-C16 alkanes, mention may notably be made of C8-C16 isoalkanes of petroleum origin (also known as isoparaffins), such as isododecane (also known as 2, 2, 4,4,6- pentamethylheptane), isodecane, isohexadecane and, for example, the oils sold under the Isopar® or Permethyl® trade names.

[0345] The volatile alkane is preferably chosen from isododecane, the mixture of linear C9-Ci2alkanes and the mixture of n-undecane and n-tridecane.

[0346] The volatile alkane may be present in the composition according to the invention in an amount ranging from 0.5% to 70% by weight, preferably ranging from 10% to 65% by weight, and preferentially ranging from 15% to 60% by weight, relative to the total weight of the composition.

[0347] The composition according to the invention may comprise a non-volatile oil, chosen notably from non-volatile hydrocarbon or silicone oils. The term "non-volatile oil" is understood to mean an oil whose vapour pressure at 25°C and atmospheric pressure is non-zero and is less than 2.66 Pa and more particularly less than 0.13 Pa.

[0348] The term “hydrocarbon oil” conventionally denotes an oil formed essentially from, indeed even constituted of, carbon and hydrogen atoms, and optionally oxygen and nitrogen atoms, and not containing a silicon or fluorine atom. The hydrocarbon oil is thus different from a silicone oil and a fluoro oil. Advantageously, the hydrocarbon oils according to the invention contain only carbon, hydrogen, oxygen and possibly nitrogen atoms.

[0349] For the purposes of the invention, the term “silicone oil” means an oil comprising at least one silicon atom, and notably at least one Si-0 group.

[0350] According to one variant, the composition comprises at least one non-volatile oil (iii) chosen from apolar hydrocarbon oils, silicone oils, polar hydrocarbon oils which are different from the liquid polyesters obtained from a mono- or polyunsaturated fatty acid dimer, the fatty acid comprising from 16 to 22 carbon atoms, and also mixtures thereof.

[0351] Apolar non-volatile hydrocarbon oils

[0352] According to one embodiment, the non-volatile oil is chosen from linear or branched, saturated or unsaturated, preferably saturated, non-volatile apolar hydrocarbon oils.

[0353] The one or more linear or branched, non-volatile apolar hydrocarbon oils are more particularly compounds comprising only carbon and hydrogen atoms (in other words nonvolatile oils of hydrocarbon type).

[0354] Said linear or branched apolar oils may be of mineral or synthetic origin, and more particularly chosen from:

[0355] - liquid paraffin,

[0356] - squalane,

[0357] - isoeicosane,

[0358] - mixtures of saturated linear hydrocarbons, more particularly Ci5-C28 hydrocarbons, in particular the mixtures with INCI names which are, for example, the following: C15.19 Alkane (INCI name), C18-21 Alkane (INCI name), C21-28 Alkane (INCI name), as for example the products Gemseal 40, Gemseal 60 and Gemseal 120 sold by Total, and Emogreen L19 sold by SEPPIC,

[0359] - hydrogenated or non-hydrogenated polybutenes, in particular the products of the Indopol range sold by the company Ineos Oligomers, - hydrogenated or non-hydrogenated polyisobutenes, in particular the non-volatile compounds of the Parleam® range sold by the company Nippon Oil Fats,

[0360] - hydrogenated or non-hydrogenated polydecenes, in particular the non-volatile compounds of the Puresyn® range sold by the company ExxonMobil,

[0361] - and mixtures thereof.

[0362] Non-volatile silicone oils

[0363] According to one embodiment of the invention, the non-volatile oil is chosen from phenylated or non-phenylated non-volatile silicone oils.

[0364] More particularly, said silicone oils are free of (poly)alkoxylated groups, in particular such as (poly)ethoxylated or (poly)propoxylated groups, or (poly)glycerolated groups.

[0365] For the purposes of the invention, the term “silicone oil” means an oil comprising at least one silicon atom, and notably at least one Si-0 group.

[0366] More particularly, the phenylated or non-phenylated non-volatile silicone oil is chosen from dimethicones, trimethylpentaphenyltrisiloxanes, tetramethyltetraphenyltrisiloxanes, diphenyl dimethicones, trimethyl siloxyphenyl dimethicones, phenyl trimethicones and diphenylsiloxyphenyl trimethicones, and also mixtures thereof.

[0367] These products are sold in particular under the names PH-1555 HRI Cosmetic Fluid (Trimethyl Pentaphenyl Trisiloxane) and Dow Corning 556 Cosmetic Grade Fluid (Phenyl Trimethicone) by Dow Coming; Diphenyl Dimethicones such as the products KF-54, KF54HV, KF-50-300CS, KF-53 d and KF-50-100CS or Diphenylsiloxy Phenyl Trimethicone KF56 A sold by Shin-Etsu; the products Belsil PDM 1000 and Belsil PDM 20 sold by Wacker Chemie (Trimethyl siloxy Phenyl Dimethicone), alone or as mixtures.

[0368] The non-volatile oil is preferably chosen from apolar hydrocarbon oils, especially liquid paraffin, squalane, isoeicosane, C15.19 Alkane (INCI name), C18-21 Alkane (INCI name), C2i- 28 Alkane (INCI name), hydrogenated or non-hydrogenated polybutenes, hydrogenated or non-hydrogenated polyisobutenes, hydrogenated or non-hydrogenated polydecenes, and also mixtures thereof; and / or from non-phenylated silicone oils chosen from dimethicones, phenylated silicones, especially trimethylpentaphenyltrisiloxanes, tetramethyltetraphenyltrisiloxanes, diphenyl dimethicones, trimethylsiloxyphenyl dimethicones, phenyl trimethicones, diphenylsiloxyphenyl trimethicones, and also mixtures thereof; and preferably from said apolar non-volatile hydrocarbon oils.

[0369] Polar non-volatile hydrocarbon oils The composition according to one variant comprises at least one polar non-volatile hydrocarbon oil chosen from plant oils, non-hydroxylated ester hydrocarbon oils other than liquid polyesters obtained from a mono- or polyunsaturated fatty acid dimer, the fatty acid comprising from 16 to 22 carbon atoms; hydroxylated ester oils, carbonate or ether oils, alcohol oils; and mixtures thereof.

[0370] Plant oils

[0371] According to one embodiment of the invention, the polar non-volatile hydrocarbon oil is chosen from plant oils and mixtures thereof.

[0372] Examples of plant oils that may be mentioned include those chosen from jojoba oil, olive oil, coconut oil, ximenia oil, pracaxi oil, coriander seed oil, macadamia oil, passionflower oil, argan oil, sesame oil, sunflower oil, grapeseed oil, avocado oil, dog rose oil, apricot kernel oil, linseed oil, sweet almond oil, cottonseed oil, soybean oil, rapeseed oil, groundnut oil, kaya oil, wheat germ oil, com oil, alfalfa oil, poppy oil, pumpkin oil, marrow oil, hazelnut oil, blackcurrant oil, evening primrose oil, millet oil, barley oil, quinoa oil, rye oil, safflower oil, candlenut oil, castor oil, lesquerella oil, the liquid fraction of shea butter, and the liquid fraction of cocoa butter, and mixtures thereof.

[0373] The plant oil is preferably not chosen from castor oil and lesquerella oil. More particularly, the plant oil is chosen from sunflower oil, olive oil, apricot oil, sweet almond oil, argan oil, rapeseed oil, jojoba oil and sesame oil, alone or as mixtures.

[0374] Non-hydroxylated ester oils

[0375] According to one embodiment, the non-volatile oil is chosen from ester oils, comprising 1 to 4 ester functions, comprising in total between 17 and 70 carbon atoms, which are linear or branched, saturated, unsaturated or aromatic.

[0376] More particularly, said esters are chosen from monoesters and polyesters, other than the abovementioned liquid polyesters, for instance:

[0377] - saturated or unsaturated monoesters, of a monocarboxylic acid and a monoalcohol, especially purcellin oil (cetostearyl octanoate), isononyl isononanoate, Ci2to Ci5alkyl benzoate, 2-ethylhexyl palmitate, octyldodecyl neopentanoate, 2-octyldodecyl stearate, 2- octyldodecyl erucate, oleyl erucate, isostearyl isostearate, 2-octyldodecyl benzoate, alcohol octanoates, decanoates or ricinoleates, isopropyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, 2-ethylhexyl palmitate, 2-hexyldecyl laurate, 2-octyldecyl palmitate and 2-octyldodecyl myristate; - diesters, for example diesters of dicarboxylic acids and monoalcohols, preferably diisostearyl malate, or diesters of glycol and monocarboxylic acids, such as neopentyl glycol diheptanoate, propylene glycol dioctanoate or diethylene glycol diisononanoate;

[0378] - triesters of a tricarboxylic acid and a monoalcohol, such as triisostearyl citrate or tridecyl trimellitate;

[0379] - total esters of glycerol, of diglycerol, of pentaerythritol and of monocarboxylic acids, for example heptanoic or octanoic acid triglycerides, capric acid triglyceride alone or as a mixture, for instance capric / caprylic acid triglycerides, Ci8.36acid triglycerides; triglyceride 2-decyltetradecanoate, pentaerythrityl tetrapelargonate, pentaerythrityl tetraisostearate, pentaerythrityl tetraisononanoate, polyglyceryl-2 tetraisostearate; Pentaerythrityl Isostearate / Caprate / Caprylate / Adipate (INCI name, for example the Supermol L products from the company Croda);

[0380] - and also mixtures thereof.

[0381] Hydroxylated ester oils

[0382] According to one embodiment of the invention, the non-volatile oil is chosen from hydroxylated esters, which in particular may be chosen from hydroxylated monoesters and diesters, preferably with a total carbon number ranging from 20 to 70, for instance isostearyl lactate, octyl hydroxystearate, octyldodecyl hydroxystearate and diisostearyl malate.

[0383] Examples that may also be mentioned include partial esters of glycerol or polyglycerol comprising from 2 to 8 glycerol units, for instance glyceryl stearate, polyglyceryl-2 diisostearate, polyglyceryl-3 triisostearate, polyglyceryl-3 diisostearate, polyglyceryl-3 polyricinoleate, polyglyceryl-6 polyricinoleate, polyglyceryl-4 diisostearate / polyhydroxystearate / sebacate, and also mixtures thereof.

[0384] Ether or carbonate oils

[0385] According to one embodiment of the invention, the non-volatile oil (iii) may be chosen from the ethers of formula ROR’, the carbonates of formula RO(CO)OR’, in which formulae the groups R and R’, which are identical or not, represent a saturated or unsaturated, branched or unbranched hydrocarbon group comprising less than 16 carbon atoms, preferably a C3- Ci6 group. For example, mention may be made of dicaprylyl ether, dipropyl carbonate, diethylhexyl carbonate, dicaprylyl carbonate, Ci4- Ci5dialkyl carbonate, and also mixtures thereof.

[0386] Fatty alcohol According to one embodiment, the non-volatile oil is chosen from saturated or unsaturated C8-C30alcohols, more particularly monoalcohols, which are liquid at ambient temperature; mention may be made in particular of lauryl alcohol, isostearyl alcohol, oleyl alcohol, 2- hexyldecyl alcohol, isocetyl alcohol, undecyl alcohol, pentadecanol, octyl dodecanol, and also mixtures of long-chain fatty alcohols, for instance mixtures of C30-C50 alcohols, C2o-C4Oalcohols, and mixtures thereof.

[0387] The non-volatile oil may be present in the composition in an amount ranging from 0.1% to 20% by weight, preferably ranging from 0.5% to 15% by weight, and preferentially ranging from 1% to 10% by weight, relative to the total weight of the composition.

[0388] The composition may comprise a C2-C4alcohol such as ethanol, isopropanol, butanol and preferably ethanol. The C2-C4 alcohol may be present in the composition in an amount ranging from 0.1% to 20% by weight, relative to the total weight of the composition, and preferably ranging from 1% to 15% by weight, preferentially ranging from 5% to 15% by weight.

[0389] COLORANTS

[0390] According to one particular embodiment, the composition according to the invention may comprise a colorant, selected in particular from pigments or pearlescent agents, and mixtures thereof.

[0391] Pearlescent agents

[0392] The term "pearlescent agents" should be understood as meaning coloured particles of any form, which may or may not be iridescent, notably produced by certain molluscs in their shell, or alternatively synthesized, and which show a colour effect via optical interference. The pearlescent agents may be chosen from pearl lustre pigments, such as titanium mica covered with an iron oxide, titanium mica covered with bismuth oxychloride, titanium mica covered with chromium oxide, titanium mica covered with an organic dye, and pearl lustre pigments based on bismuth oxychloride. They may also comprise mica particles with a surface at which there are at least two superposed successive layers of metal oxides and / or of organic colorants.

[0393] Examples of pearlescent agents that may also be mentioned include natural mica covered with titanium oxide, with iron oxide, with natural pigment or with bismuth oxychloride.

[0394] The pearlescent agents may more particularly have a yellow, pink, red, bronze, orange, brown and / or coppery colour or glint. Among the pearlescent agents available on the market, mention may be made of the Timica, Flamenco, Cloisonne, Chromalite and Duochrome pearlescent agents (based on mica) sold by the company Engelhard, the Timiron, Colorona and Microna pearlescent agents sold by the company Merck, the Prestige mica-based pearlescent agents sold by the company Eckart, and the Sunshine synthetic mica-based pearlescent agents sold by the company Sun Chemical.

[0395] According to one particular embodiment of the invention, the pearlescent agents are chosen from those with an average particle size (corresponding to the D50 (average diameter, measured by laser particle size analysis or other equivalent method known to those skilled in the art)) of at least 70 pm, preferably of at least 100 pm.

[0396] As a guide, if the composition contains any, such pearlescent agents may be present in an amount ranging from 0.001% to 20% by weight, in particular from 0.01% to 15% by weight, relative to the total weight of the composition.

[0397] Pigments

[0398] The composition according to the invention may optionally comprise at least one pigment.

[0399] The term “pigments” means white or coloured, mineral or organic particles which are insoluble in an aqueous or oily medium and which are intended to colour and / or opacify the composition and / or the resulting deposit. These pigments can be white or coloured, mineral and / or organic.

[0400] These pigments may be coated or uncoated mineral pigments.

[0401] Among the mineral pigments that are useful in the present invention, mention may be made of zirconium oxide or cerium oxide, titanium oxides, and also zinc oxide, iron oxide (black, yellow or red) or chromium oxide, manganese violet, ultramarine blue, chromium hydrate and ferric blue, titanium dioxide, and metal powders, for instance aluminium powder and copper powder.

[0402] These pigments may also be organic pigments or pigments in the form of composite pigments as described in patent EP 1 184426. These composite pigments may be composed in particular of particles including an inorganic core at least partially covered with an organic pigment and at least one binder for fixing the organic pigments on the core.

[0403] The inorganic substrates onto which the dyes are adsorbed are, for example, alumina, silica, calcium sodium borosilicate or calcium aluminium borosilicate, and aluminium.

[0404] Advantageously, the pigments may have been subjected to a hydrophobic surface treatment. The hydrophobic treatment agent may be chosen, for example, from silicones such as methicones, dimethicones and perfluoroalkylsilanes; fatty acids such as stearic acid; metal soaps such as aluminium dimyristate, the aluminium salt of hydrogenated tallow glutamate, perfluoroalkyl phosphates, perfluoroalkylsilanes, perfluoroalkylsilazanes, polyhexafluoropropylene oxides, polyorganosiloxanes comprising perfluoroalkyl perfluoropolyether groups, amino acids; N-acylamino acids or salts thereof; lecithin, isopropyl triisostearyl titanate, and mixtures thereof.

[0405] The N-acylamino acids may comprise an acyl group having from 8 to 22 carbon atoms, for instance a 2-ethylhexanoyl, caproyl, lauroyl, myristoyl, palmitoyl, stearoyl or cocoyl group. The salts of these compounds may be the aluminium, magnesium, calcium, zirconium, zinc, sodium or potassium salts. The amino acid may be, for example, lysine, glutamic acid or alanine.

[0406] The term "alkyl" mentioned in the compounds cited above denotes in particular an alkyl group having from 1 to 30 carbon atoms and preferably having from 5 to 16 carbon atoms. Hydrophobic treated pigments are notably described in patent application EP-A-1 086 683. Mention may also be made of the products known under the following names: D&C Red 21 (CI 45 380), D&C Orange 5 (CI 45 370), D&C Red 27 (CI 45 410), D&C Orange 10 (CI 45 425), D&C Red 3 (CI 45 430), D&C Red 4 (CI 15 510), D&C Red 33 (CI 17 200), D&C Yellow 5 (CI 19 140), D&C Yellow 6 (CI 15 985), D&C Green 5 (CI 61 570), D&C Yellow 10 (CI 77 002), D&C Green 3 (CI 42 053), D&C Blue 1 (CI 42 090).

[0407] According to one preferred embodiment of the invention, the one or more pigments have been subjected to a hydrophobic treatment.

[0408] As a guide, if the composition comprises any, the amount of pigments may range from 0.1% to 30% by weight, relative to the total weight of said composition.

[0409] FILLERS

[0410] The composition according to the invention may optionally comprise one or more fillers conventionally used in make-up and / or care compositions. It should be noted that the fillers are distinct from the colorants.

[0411] These fillers are colourless or white solid particles of any form, which are in a form that is insoluble and dispersed in the medium of the composition.

[0412] These fillers, of mineral or organic, natural or synthetic nature, give the composition containing them softness, a matt effect and uniformity in the make-up. In addition, these fillers advantageously make it possible to combat various attacking factors such as sebum or sweat.

[0413] By way of illustration of these fillers, mention may be made of mica, silica, kaolin, poly-P- alanine powder and polyethylene powder, tetrafluoroethylene polymer (Teflon®) powders, lauroyllysine, starch, boron nitride, hollow polymer microspheres such as those of polyvinylidene chloride / acrylonitrile, for instance Expancel® (Nobel Industrie), acrylic acid copolymer microspheres, silicone resin microbeads (for example Tospearls® from Toshiba), polyorganosiloxane elastomer particles, precipitated calcium carbonate, magnesium carbonate, magnesium hydrogencarbonate, hydroxyapatite, barium sulfate, polyurethane powders, composite fillers, hollow silica microspheres, and glass or ceramic microcapsules. Use may also be made of particles that are in the form of hollow sphere portions, as described in patent applications JP-2003 128 788 and JP-2000 191 789.

[0414] In particular, if the composition comprises such fillers, they may be present in an amount ranging from 0.1% to 10% by weight, in particular from 1% to 7% by weight, relative to the total weight of the composition.

[0415] The composition according to the invention may comprise common additives such as polyols, waxes, preservatives, fragrances, surfactants, thickeners and moisturizers.

[0416] According to one embodiment, the composition is anhydrous and contains less than 5% by weight of water, preferably less than 1% by weight, or even contains no water.

[0417] The composition according to the invention may be a make-up composition such as a foundation, an eyeliner, an eyeshadow, a lipstick, a mascara or a body make-up product.

[0418] The composition according to the invention may be a composition for face or body care, or a suncare product.

[0419] The invention is illustrated in greater detail in the examples that follow.

[0420] Comparative Examples 1 to 3:

[0421] A composition according to the invention (Example 1) and two comparative compositions outside the invention (Examples 2 and 3) were prepared, as follows:

[0422] [Table 1]

[0423] 3rocedure

[0424] The constituents of phase A were mixed in a beaker using a rotor-stator for 5 minutes at 500 revolutions / min. The hectorite was sprinkled in while stirring with the rotor-stator at 1500 revolutions / min and the mixture was then left stirring for 15 minutes.

[0425] The mixture of pigments and synthetic mica was sprinkled in while stirring with the rotorstator at 2000 rpm and then the mixture was left stirring for 15 minutes.

[0426] The temperature of the bulk material was checked: In the event of a temperature increase, the beaker was placed in a cold water bath.

[0427] The ethanol was added at the end at ambient temperature (below 30°C) with rotor-stator stirring at 1000 revolutions / min. The mixture was again left stirring for 5 min and was then packaged.

[0428] Test of in vitro evaluation of stability and of transfer resistance

[0429] Each composition was applied to an Erichsen contrast chart, using a spreader, as a deposit with a thickness of 50 pm, over a width of at least 6 cm, and was left to dry on a hotplate at 32°C for 40 minutes.

[0430] Three thin strips of WypAll© 05701 7471 L40 (Kimberley Clark) 2 cm wide and 3 cm long were placed on the deposit without them overlapping:

[0431] - the first strip is dry,

[0432] - the second strip is impregnated with distilled water (0.1 ml),

[0433] - the third strip is impregnated with olive oil (0.1 ml).

[0434] The film drawer weighted with a weight of 2 kg was placed on all of the thin strips, and the assembly was moved over the film. Finally, the state of the deposit after passage of the strips was observed.

[0435] The degradation of the deposit was rated as follows:

[0436] [Table 2]

[0437] The following results were obtained: [Table 3]

[0438] These results show that the composition of Example 1 containing the polyester and the silicone resin imparts more reduced transfer than is obtained with the composition of Example 3 containing the polyester, dry and in the presence of oil. The transfer is similar to that of the composition of Example 2 containing the silicone resin, without polyester.

[0439] The composition of Example 1 thus makes it possible to reduce the amount of silicone resin without losing any stability and transfer performance.

[0440] Comparative Examples 4 and 5: A composition according to the invention (Example 4) and a comparative composition outside the invention (Example 5) were prepared, similar to that of Example 1, with modification of the weight ratio of polyester to lipophilic silicone polymer, as follows.

[0441] [Table 4]

[0442] The stability and transfer resistance properties were evaluated. The following results were obtained: [Table 5] These results show that the compositions of Examples 1 and 4 impart more reduced transfer when dry and with oil than that of Example 5.

[0443] Thus, the weight ratio between the polyester and the lipophilic silicone polymer must be less than 7 in order to obtain good transfer resistance properties when dry and with oil.

[0444] Example 6:

[0445] A composition according to the invention (Example 6) was prepared, as follows:

[0446] [Table 6] The stability and transfer resistance properties were evaluated. The following results were obtained:

[0447] [Table 7]

[0448] The composition exhibits good transfer resistance properties when dry and with oil, and also good stability.

Claims

Claims1. Composition comprising, in a physiologically acceptable medium, a) a polyester which is the reaction product of the following components (i), (ii) and (iii):(i) at least one polyglycerol-3,(ii) at least one dimer acid, and(iii) at least one fatty monoacid containing from 8 to 30 carbon atoms, the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mol of polyglycerol-3, from 0.5 to 1 mol of dimer acid and from 0.1 to less than 2.0 mol of fatty monoacid, b) a lipophilic silicone polymer chosen from silicone resins, silicone polyamides, vinyl polymers comprising a carbosiloxane dendrimer-based unit, silicone acrylate copolymers, and mixtures thereof, said polyester and said lipophilic silicone polymer being present in a weight ratio of polyester to lipophilic silicone polymer ranging from 0.25 to 6.9.

2. Composition according to the preceding claim, characterized in that the polyester is a substantially or totally non- sequent! al reaction product.

3. Composition according to any one of the preceding claims, characterized in that the polyester is prepared by a one-step process which involves the introduction of all the reactants into a reaction vessel and subsequently the induction of an entirely random addition of the dimer acid and of the fatty monoacid to the polyglycerol-3.

4. Composition according to any one of the preceding claims, characterized in that the polyglycerol-3 is triglycerol or a mixture of polyglycerols comprising at least triglycerol, said polyglycerols corresponding to the formula (I) H[-O-Gly]n-OH, in which each Gly is independently the residue of a glycerol molecule after removal of two hydroxyl groups, and n is a mean from 2 to 10.

5. Composition according to any one of the preceding claims, characterized in that the polyglycerol-3 is in the form of a mixture and is composed of at least 40% by weight, or of at least 45% by weight, or of at least 50% by weight, of a combination of diglycerol and triglycerol, relative to the total weight of the polyglycerol-3 in the form of a mixture.

6. Composition according to any one of the preceding claims, characterized in that the polyglycerol-3 is in the form of a mixture and composed of at least 20% by weight, or of at least 25% by weight, of diglycerol; at least 15% by weight, or at least 18% by weight, oftriglycerol; at least 10% by weight, or at least 12% by weight, of tetraglycerol, relative to the total weight of the polyglycerol-3 in the form of a mixture.

7. Composition according to any one of the preceding claims, characterized in that the polyglycerol-3 is in the form of a mixture and comprises at least 25% by weight of di glycerol, at least 45% by weight of tri glycerol and at least 10% by weight of tetraglycerol, relative to the total weight of the polyglycerol-3 in the form of a mixture.

8. Composition according to any one of the preceding claims, characterized in that the polyester is a substantially or totally non-sequential reaction product of the following components:(i) at least one polyglycerol-3 in the form of a mixture comprising at least 25% by weight of di glycerol, at least 45% by weight of tri glycerol and at least 10% by weight of tetraglycerol, in each case relative to the total weight of the polyglycerol-3 in the form of a mixture;(ii) at least one hydrogenated dimer acid containing at least 60% by weight of hydrogenated C36 diacid and 5% to 25% by weight of hydrogenated C54 triacid, in each case relative to the total weight of hydrogenated acid; and(iii) isostearic acid.

9. Composition according to any one of the preceding claims, characterized in that the polyester is in an oily solution comprising: a) a polyester obtained by reaction:(i) of polyglycerol-3, and(ii) of a hydrogenated C36 acid dimer, and(iii) of isostearic acid; the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mol of poly glycerol-3, 0.5 to 1 mol of dimer acid and 0.1 to less than 2.0 mol of fatty acids, and b) a caprylic / capric acid triglyceride, said mixture more particularly having the INCI name: Diisostearoyl Polyglyceryl-3 Dimer Dilinoleate (and) Caprylic / Capric Triglyceride.

10. Composition according to the preceding claim, characterized in that the oily solution contains the polyester in a concentration of from 10% to 99% by weight, more preferentially from 30% to 90% by weight, more particularly from 50% to 80% by weight, relative to the total weight of the mixture.

11. Composition according to any one of Claims 9 or 10, characterized in that the oily solution comprises 40% by weight of caprylic / capric acid triglyceride and 60% by weight of polyester of polyglycerol-3, hydrogenated C36 dimer acid and isostearic acid in a molar ratio of 1 / 0.5 / 1.

12. Composition according to any one of the preceding claims, characterized in that the polyester content represents from 1% to 30% by weight, preferably from 2% to 20% by weight, relative to the total weight of the composition.

13. Composition according to any one of the preceding claims, characterized in that the lipophilic silicone polymer is a silicone resin chosen from polymethylsilsesquioxanes, siloxysilicate resins, more particularly trimethylsiloxysilicate resins.

14. Composition according to any one of Claims 1 to 12, characterized in that the lipophilic silicone polymer is a silicone polyamide comprising at least one unit of formula (III) or (IV):in which:R4, R5, R6and R7, which are identical or different, represent a group chosen from: saturated or unsaturated, linear, branched or cyclic Ci to C40hydrocarbon groups, which may contain in their chain one or more oxygen, sulfur and / or nitrogen atoms, and which may be partially or totally substituted by fluorine atoms,C6to Cio aryl groups, optionally substituted by one or more Ci to C4alkyl groups,the polyorganosiloxane chains possibly containing one or more oxygen, sulfur and / or nitrogen atoms, the groups X, which are identical or different, represent a linear or branched Ci to C30alkylenediyl group, possibly containing in its chain one or more oxygen and / or nitrogen atoms,1) Y is a saturated or unsaturated, linear or branched Ci to C50alkylene, arylene, cycloalkylene, alkylarylene or arylalkylene divalent group, which may include one or more oxygen, sulfur and / or nitrogen atoms, and / or may bear as substituent one of the following atoms or groups of atoms: fluorine, hydroxyl, C3to C8cycloalkyl, Ci to C40alkyl, C5to Ci0aryl, phenyl optionally substituted by 1 to 3 Ci to C3alkyl, Ci to C3hydroxyalkyl and Ci to C6aminoalkyl groups, or2) Y represents a group corresponding to the formula:in which:T represents a linear or branched, saturated or unsaturated, C3to C24trivalent or tetravalent hydrocarbon group optionally substituted with a polyorganosiloxane chain, and possibly containing one or more atoms chosen from O, N and S, or T represents a trivalent atom chosen from N, P and Al, andR8represents a linear or branched Ci-C50alkyl group, or a polyorganosiloxane chain, possibly comprising one or more ester, amide, urethane, thiocarbamate, urea, thiourea and / or sulfonamide groups, which may possibly be linked to another chain of the polymer, n is an integer ranging from 2 to 500 and preferably from 2 to 200, and m is an integer ranging from 1 to 1000, preferably from 1 to 700 and better still from 6 to 200.

15. Composition according to any one of Claims 1 to 12 and 14, characterized in that the lipophilic silicone polymer is a silicone polyamide chosen from Nylon-611 / dimethicone copolymer.

16. Composition according to any one of Claims 1 to 12, characterized in that the lipophilic silicone polymer is a vinyl polymer possessing at least one carbosiloxane dendrimer-based unit and is the product of polymerization of:(A) 0 to 99.9 parts by weight of a vinyl monomer; and(B) 100 to 0.1 parts by weight of a carbosiloxane dendrimer containing a radical- polymerizable organic group, represented by the formula:in which Y represents a radical-polymerizable organic group, R1represents an aryl group or an alkyl group possessing from 1 to 10 carbon atoms, and X1represents a silylalkyl group which, when i = 1, is represented by the formula:in which R1is as defined above, R2represents an alkylene group possessing from 2 to 10 carbon atoms, R3represents an alkyl group possessing from 1 to 10 carbon atoms, X1+1represents a hydrogen atom, an alkyl group possessing from 1 to 10 carbon atoms, an aryl group, or said silylalkyl group with i = i + 1; i is an integer from 1 to 10 which represents the generation of said silylalkyl group, and a1is an integer from 0 to 3; where said radical-polymerizable organic group Y present in component (B) is selected from the group consisting of an organic group which contains a methacrylic group or an acrylic group and which is represented by the formulae:andin which R4represents a hydrogen atom or an alkyl group, R5represents an alkylene group possessing from 1 to 10 carbon atoms; and an organic group which contains a styryl group and which is represented by the formula:in which R6represents a hydrogen atom or an alkyl group, R7represents an alkyl group possessing from 1 to 10 carbon atoms, R8represents an alkylene group possessing from 1 to 10 carbon atoms, b is an integer from 0 to 4, and c is 0 or 1, such that if c is 0, -(R8)c- represents a bond.

17. Composition according to the preceding claim, wherein said vinyl polymer possessing at least one carbosiloxane dendrimer-based unit is an acrylate / polytrimethylsiloxymethacrylate copolymer.

18. Composition according to one of Claims 1 to 12, characterized in that the lipophilic silicone polymer is a copolymer comprising carboxylate groups and polydimethylsiloxane groups, more particularly chosen from copolymers of acrylic acid and stearyl acrylate bearing polydimethylsiloxane grafts, copolymers of stearyl methacrylate bearing polydimethylsiloxane grafts, copolymers of acrylic acid and stearyl methacrylate bearing polydimethylsiloxane grafts, copolymers of methyl methacrylate, butyl methacrylate, 2- ethylhexyl acrylate and stearyl methacrylate bearing polydimethylsiloxane grafts, and preferably chosen from acrylates / dimethicone copolymer.

19. Composition according to any one of the preceding claims, characterized in that the lipophilic silicone polymer is present in an amount ranging from 1% to 15% by weight, preferably ranging from 1.5% to 10% by weight, and preferentially ranging from 1.7% to 5% by weight, relative to the total weight of the composition.

20. Composition according to any one of the preceding claims, characterized in that it comprises a volatile solvent, preferably a volatile alkane.

21. Composition according to the preceding claim, characterized in that it comprises a volatile alkane chosen from volatile linear alkanes comprising from 8 to 14 carbon atomsand branched C8-C16 alkanes and preferably chosen from isododecane, the mixture of C9- C12 linear alkanes and the mixture of n-undecane and n-tridecane.

22. Composition according to any one of Claims 20 or 21, characterized in that the volatile alkane is present in an amount ranging from 0.5% to 70% by weight, preferably ranging from 10% to 65% by weight, and preferentially ranging from 15% to 60% by weight, relative to the total weight of the composition.

23. Process for caring for and / or making up keratin materials, comprising the application to said keratin materials of a composition according to any one of the preceding claims.

Images