WO2024083533A1

WO2024083533A1 - Water-in-oil emulsion for caring for and/or making up keratin materials comprising at least one volatile hydrocarbon oil, a particular polyester, a wax and optionally a pigment

Info

Publication number: WO2024083533A1
Application number: PCT/EP2023/077753
Authority: WO
Inventors: Sophie Beaumard; Camille MOYNE
Original assignee: L'oreal
Priority date: 2022-10-19
Filing date: 2023-10-06
Publication date: 2024-04-25
Also published as: FR3141068A1

Abstract

The present invention relates to a liquid composition for caring for and/or making up keratin materials, such as the skin, the outline of the eyes, the outline of the eyelids, the eyelashes and the eyebrows, in the form of a water-in-oil emulsion, comprising in particular in a physiologically acceptable medium: A) at least one 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 having from 8 to 30 carbon atoms, the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mole of polyglycerol-3, of 0.5 to 1 mole of dimer acid and of 0.1 to less than 2.0 moles of fatty monoacid; and B) at least one continuous oily phase comprising at least: 1) at least one volatile hydrocarbon oil; and 2) optionally at least one nonvolatile oil; the ratio by weight of the total amount of nonvolatile oil(s) to the amount of polyester being less than 8.0; and C) at least one aqueous phase dispersed in said oily phase; D) at least one wax; and E) optionally at least one pulverulent colorant.

Description

Title: Water-in-oil emulsion for caring for and/or making up keratin materials comprising at least one volatile hydrocarbon oil, a particular polyester, a wax and optionally a pigment

Technical field

[0001] The present invention is targeted at providing, for the field of the care and/or makeup of keratin materials, in particular of the skin, the outline of the eyes, the outline of the eyelids, the eyelashes and the eyebrows, a liquid composition in the form of a water-in-oil emulsion comprising at least one volatile hydrocarbon oil, a particular polyester oligomer, a wax and a pigment.

[0002] Numerous cosmetic makeup compositions based on colorants, such as foundations, correctors, lipsticks, lip glosses or mascaras, have been developed for a longer wear property and nontransfer properties. This is achieved by the use of compositions which form a film after application. Such compositions generally contain volatile solvents which evaporate on contact with the skin or other keratin material, leaving behind a layer comprising waxes and/or film-forming polymers, pigments and fillers. However, these compositions tend to be uncomfortable from the sensory viewpoint for the consumer.

[0003] A poor wear property over time can be reflected in particular by a poor wear property over time of the color and/or of the composition. This poor wear property can be characterized by a transfer of the product onto a surface such as that of a fabric in contact with the madeup keratin material. It can also be displayed by a modification of the color (change in color, fading) generally owing to an interaction with sebum and/or moisture, such as sweat, secreted by the skin, in the case of a foundation, or to an interaction with saliva, in the case of lipsticks. This obliges the user to reapply the makeup very frequently, which can be time consuming.

[0004] It has already been proposed, in makeup compositions of the prior art, to use liquid or pasty polyesters to obtain wear properties. [0005] Mention may in particular be made of the documents JP2002-128623, JP2002-128628, JP2002-128629 and EP 1 604 634, which describe polyesters of dilinoleic diacids and dilinoleyl diol dimers with the INCI name Dimer Dilinoleyl Dimer Dilinoleate, such as those sold by Nippon Fine Chemical under the trade names Lusplan DD-DA5® and DD-DA7®.

[0006] To obtain wear properties in makeup compositions, there have also been provided, in the document FR29316739, polyesters obtained by condensation of dimer and/or trimer of unsaturated fatty acids and of diol; in particular, the polyester obtained by condensation of dimer and/or trimer of unsaturated fatty acid and of diol is a polyester of dilinoleic acid and of 1 ,4-butanediol, such as the polymer sold by Biosynthis under the name Viscoplast 14436H® (INCI name: Dilinoleic Acid/Butanediol Copolymer).

[0007] It is also known to use, in particular in the documents JP2005-325079 and JP2006-28129, polyesters of hydroxylated fatty acid triglyceride and of a saturated fatty diacid for providing the wear property to makeup compositions. Mention may in particular be made, by way of examples of polyesters, of those with the INCI name Hydrogenated Castor Oil/Sebacic Acid Copolymer, such as the product sold under the name Crodabond CSA® by Croda, and also the hydrogenated castor oil dimer dilinoleate with the INCI name: Hydrogenated Castor Oil Dimer Dilinoleate, such as the product sold under the names Risocast- DA-L® and Risocast DA-H® by Kokyu Alcohol Kogyo.

[0008] In the cosmetics field, water-in-oil emulsions, also known as inverse emulsions, are particularly appreciated by consumers with regard to their cosmetic properties, in particular with regard to their comfort on application.

[0009] The applicant company has found, during its research studies, that the liquid makeup compositions in the form of a water-in-oil emulsion comprising the polyesters of the prior art which are mentioned above were not wholly satisfactory in terms of resistance to moisture and to rubbing actions, in particular for making up the eyelashes and the eyebrows.

[0010] The need thus remains to find new liquid formulae for caring for and/or making up keratin materials in the form of a water-in-oil emulsion based on an appropriate polyester resulting in a good wear property of the deposit (rubbing actions, moisture) and in good nontransfer properties, without the disadvantages mentioned above.

[0011] In the course of its research studies, the applicant company has discovered, unexpectedly, that these objectives could be achieved with a liquid composition for caring for and/or making up keratin materials, such as the skin, the outline of the eyes, the outline of the eyelids, the eyelashes and the eyebrows, in the form of a water-in-oil emulsion, comprising in particular in a physiologically acceptable medium:

A) at least one 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 having from 8 to 30 carbon atoms, the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mole of polyglycerol-3, of 0.5 to 1 mole of dimer acid and of 0.1 to less than 2,0 moles of fatty monoacid; and

B) at least one continuous oily phase comprising:

1 ) at least one volatile hydrocarbon oil; and

2) optionally at least one nonvolatile oil; the ratio by weight of the total amount of nonvolatile oil(s) to the amount of polyester being less than 8.0; and

C) at least one aqueous phase dispersed in said oily phase;

D) at least one wax; and

E) at least one pulverulent colorant.

[0012] This discovery forms the basis of the invention.

Subject matters of the invention

[0013] Thus, according to one of its aspects, the present invention relates to a liquid composition for caring for and/or making up keratin materials, such as the skin, the outline of the eyes, the eyelids, the eyelashes and the eyebrows, in the form of a water-in-oil emulsion, comprising, in particular in a physiologically acceptable medium:

A) at least one 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

B) at least one continuous oily phase comprising:

1 ) at least one volatile hydrocarbon oil; and

C) at least one aqueous phase dispersed in said oily phase;

D) at least one wax; and

E) at least one pulverulent colorant.

[0014] The invention also relates to a method for coating keratin materials, more particularly for making up and/or caring for keratin materials, such as the skin, the outline of the eyes, the eyelids, the eyelashes and the eyebrows, characterized in that it comprises at least the application to keratin materials of a composition as defined above.

Definitions

[0015] In the context of the present invention, the term "keratin material" is understood in particular to mean the skin (outline of the eyes, eyelids), the eyelashes and the eyebrows.

[0016] The term “physiologically acceptable” is understood to mean compatible with the skin and/or its superficial body growths, which exhibits a pleasant color, odor and feel and which does not cause unacceptable discomfort (stinging, tautness) liable to dissuade the consumer from using this composition.

[0017] 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 by a double bond and to an alkoxy group. When the bonded atom is a carbon atom, it is called a carboxylic ester, the general form of which is R-COO-R'.

[0018] 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.

[0019] Within the meaning of the present invention, the term "water-in-oil emulsion", also known as inverse emulsion, is understood to denote any composition constituted of a continuous oily phase in which the aqueous phase is dispersed in the form of droplets so as to observe a mixture which is macroscopically homogeneous to the naked eye.

[0020] The term "liquid composition" is understood to mean any composition which exhibits one or both of the following characteristics:

(i) it flows under its own weight at ambient temperature (20-25°C) and at atmospheric pressure (760 mmHg or 1 .013 x 105 Pa); ii) is not solid at ambient temperature and at atmospheric pressure and of which it is possible to measure its consistency characterized by its hardness; iii) does not exhibit any particular shape such as that which can be obtained by hot casting in a mold or container of a given shape.

[0021] Such compositions can thus be found in particular in creamy, pasty or gel form.

Protocol for the measurement of the consistency

[0022] According to a particular form, the composition according to the invention exhibits, at 25°C, a consistency characterized by a hardness of less than or equal to 300 g, preferentially a hardness ranging from 1 to 200 g, more preferentially still from 5 to 150 g.

[0023] The consistency can be measured according to the following protocol:

[0024] The measurement device is a TA-XT-Plus® sold by Staples Micro System, equipped with a cell for measuring a force of 5 kilograms and with a cylindrical spindle 12.7 mm (1/2 inch) in diameter made of Delrin. The composition is thermostatically controlled at 20°C. It is then placed in excess in a container with a diameter of 60 mm and a depth of 22 mm using a metal spatula. The product is spread out so as to avoid any air pockets but without pummelling it, so as not to destructure it. The container is subsequently leveled off using a spatula so as to have a surface which is as uniform as possible. The container is subsequently covered with a watch glass so as to limit the evaporation of solvents present in the formula for about 10 minutes. The options chosen for this measurement method are as follows:

Test mode: Compression measurement

Trigger force: 2.0 g

Pre-speed: 0.5 mm/sec

Test speed: 0.5 mm/sec

Temperature: 20°C +/- 1 °C

Penetration distance: 5 mm

[0025] Three successive measurements are carried out at points at least 12 mm apart, at at least 10 mm from the edge of the container. The container is held in place during the measurement. The value retained is the mean of the maxima obtained at each measurement.

Aqueous phase

[0026] The aqueous phase comprises water and optionally water-soluble or water- miscible ingredients, such as water-soluble solvents.

[0027] A water suitable for the invention can be a demineralized water, a floral water, such as cornflower water, and/or a mineral water, such as Vittel water, Lucas water or La Roche-Posay water, and/or a thermal water.

[0028] Mention may be made, among the water-soluble solvents which can be present in the aqueous phase, of C2-C6 monoalcohols, such as ethanol, propanol, isopropanol or butanol. Mention may also be made of polyols, such as glycerol, propanediol, pentylene glycol, butylene glycol, caprylyl glycol, ethylhexyglycerol, propylene glycol and their mixtures.

[0029] A composition of the invention can comprise water in a content varying from 1 % to 50% by weight and more preferably still from 10% to 30% by weight, with respect to the total weight of the composition. Continuous oily phase

[0030] The composition of the invention comprises a continuous oily phase. Said phase is liquid (in the absence of structuring agent) at ambient temperature (20- 25°C). It is organic and water-immiscible.

[0031] The oily phase of the composition of the invention comprises:

1 ) at least one volatile hydrocarbon oil; and

2) optionally at least one nonvolatile oil; the ratio by weight of the total amount of nonvolatile oil(s) to the amount of polyester being less than 8.0.

[0032] The total concentration of oily phase of the composition of the invention preferably varies from 5% to 60% by weight and more particularly ranges from 10% to 40% by weight, with respect to the total weight of the composition.

Volatile hydrocarbon oil

[0033] The composition in accordance with the present invention comprises at least one volatile hydrocarbon oil.

[0034] The term “oil” is understood to mean any fatty substance in liquid form at ambient temperature (25°C) and at atmospheric pressure (760 mmHg or 10⁵ Pa).

[0035] The term “hydrocarbon oil” is understood to mean an oil containing predominantly hydrogen and carbon atoms and optionally one or more functions chosen from hydroxyl, ester, ether and carboxyl functions.

[0036] Within the meaning of the invention, the term “volatile oil” is understood to mean any oil capable of evaporating on contact with the skin in less than one hour, at ambient temperature and atmospheric pressure. The volatile oil is a volatile cosmetic compound, which is liquid at ambient temperature, having in particular a nonzero vapor pressure, at ambient temperature and atmospheric pressure, in particular having a vapor pressure ranging from 2.66 Pa to 40 000 Pa, especially ranging from 2.66 Pa to 13 000 Pa and more particularly ranging from 2.66 Pa to 1300 Pa.

[0037] The volatile hydrocarbon oils which can be used in the compositions according to the invention can be chosen from branched C8-C16 alkanes. Mention may in particular be made, as 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.

[0038] Mention may also be made of branched C8-C16 esters, such as isohexyl neopentanoate. Other volatile hydrocarbon oils, such as petroleum distillates, in particular those sold under the name Shell Solt® by Shell, can also be used.

[0039] The volatile hydrocarbon oils which can be used in the compositions according to the invention can be chosen from volatile linear alkanes comprising from 6 to 14 carbon atoms.

[0040] Mention may be made, by way of examples of linear alkanes suitable for the invention, of the alkanes described in the patent applications W02007/068371 and W02008/155059 of Cognis (mixtures of different alkanes differing by at least one carbon). These alkanes are obtained from fatty alcohols, themselves obtained from coconut or palm oil.

[0041] Mention may be made, by way of examples of linear C6-C14 alkanes suitable for the invention, of n-hexane (C6), n-heptane (C7), n-octane (C8), n-nonane (C9), n-decane (C10), n-undecane (C11 ), n-dodecane (C12), n-tridecane (C13), n-tetradecane (C14) and their mixtures.

[0042] Mention may in particular be made of n-dodecane (C12) and n-tetradecane (C14), sold by Sasol respectively under the references Parafol 12-97® and Parafol 14-97®, and also of their mixtures.

[0043] According to another embodiment, a mixture of n-dodecane and of n- tetradecane is used. It is in particular possible to use the dodecane/tetradecane mixture in the 85/15 ratio by weight sold by Biosynthis under the reference Vegelight 1214®.

[0044] According to yet another embodiment, use is made of a mixture of volatile linear C9-C12 alkanes with the INCI name: C9-12 Alkane, such as the product sold by Biosynthis under the reference Vegelight Silk®.

[0045] According to yet another embodiment, use is made of a mixture of n- undecane (C11 ) and of n-tridecane (C13), like those obtained in examples 1 and 2 of the application WO 2008/155059 from Cognis and like that sold under the trade name Cetiol Ultimate® by BASF. [0046] According to a particularly preferred embodiment, the volatile hydrocarbon oil is a mixture of volatile linear C9-C12 alkanes with the INCI name: C9-12 Alkane.

[0047] The volatile oil or oils are preferably present in the composition of the invention at contents ranging from 5% to 60% by weight, preferably from 10% to 40% by weight, with respect to the total weight of said composition.

Nonvolatile oils.

[0048] According to a preferred embodiment, the composition of the invention comprises at least one nonvolatile oil, the ratio by weight of the total amount of nonvolatile oil(s) to the amount of polyester being less than 8.0.

[0049] According to a particularly preferred form, the composition in accordance with the invention comprises at least one nonvolatile oil, the ratio by weight of the total amount of nonvolatile oil(s) to the amount of polyester being between 0 and 8, and more particularly from 1 to 3.

[0050] The term "nonvolatile oil" is understood to mean an oil remaining on the skin or the keratin fiber at ambient temperature and atmospheric pressure for at least several hours and having in particular a vapor pressure of less than 2.66 Pa, preferably of less than 0.13 Pa. By way of example, the vapor pressure can be measured according to the static method or by the effusion method by isothermal thermogravimetry as a function of the vapor pressure (standard OECD 104).

[0051] The nonvolatile oils in accordance with the invention can be chosen from the group constituted of hydrocarbon oils, silicone oils and their mixtures.

[0052] Mention may be made, as examples of nonvolatile oils which can be used in the invention, of:

- hydrocarbon oils of vegetable origin, such as triglycerides of fatty acids containing from 4 to 24 carbon atoms, such as, for example, Caprylic/Capric Triglycerides, such as those sold by Stearineries Dubois or those sold under the names Miglyol 810®, 812® and 818® by Dynamit Nobel; triglycerides of branched C18-C36 fatty acids and of glycerol, such as that sold under the name DUB TGI 24® by Stearineries Dubois (INCI name C18-36 Acid Triglyceride);

- linear or branched hydrocarbons, of mineral or synthetic origin, such as liquid paraffins and their derivatives, liquid petrolatum, polydecenes, polybutenes, hydrogenated polyisobutene, such as Parleam, or squalene e - synthetic ethers containing from 10 to 40 carbon atoms, such as dicaprylyl ether;

- synthetic esters, in particular fatty acids esters of formula R1 COOR2 like isononyl isononanoate, isopropyl myristate, isopropyl palmitate, C12-C15 alkyl benzoate, triheptanoin, hexyl laurate, isoamyl laurate, diisopropyl adipate, 2- ethylhexyl palmitate, 2-octyldodecyl stearate, 2-octyldodecyl erucate, isostearyl isostearate, heptyl undecylenate, diisostearyl malate and tridecyl trimellitate;

- fatty alcohols which are liquid at ambient temperature, comprising a branched and/or unsaturated carbon chain comprising from 12 to 26 carbon atoms, such as octyldodecanol, isostearyl alcohol, 2-butyloctanol, 2-hexyldecanol, 2- undecylpentadecanol or oleyl alcohol;

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

- carbonates, such as dicaprylyl carbonate;

- acetates;

- citrates;

- their mixtures.

[0053] According to a particular form, the nonvolatile oil is a triglyceride of fatty acids containing from 4 to 24 carbon atoms, and more particularly a triglyceride of capryl ic/capric acids (INCI name: Caprylic/Capric Triglyceride).

Polvqlvcerol-3/dimer acid/C8-C30 fatty monoacid polyester

[0054] The composition in accordance with the invention comprises at least one 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 having from 8 to 30 carbon atoms, the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mole of polyglycerol-3, of 0.5 to 1 mole of dimer acid and of 0.1 to less than 2,0 moles of fatty acid.

[0055] The polyesters of the invention, and also their synthesis, are described in the patent applications US 2021/10259945, US 2021/10259946 and US 2021/10259930. [0056] According to a preferred embodiment, the amount, as active material, of polyester varies from 1 % to 20% by weight, more preferentially from 2% to 8% by weight, with respect to the total weight of the composition.

[0057] According to a preferred embodiment, the polyester is a substantially or completely nonsequential reaction product.

[0058] The term "substantially nonsequential reaction product" is understood to mean the product obtained by a substantially nonsequential reaction of the reactive components (i)-(iii).

[0059] The term "completely nonsequential reaction of the reactive components (i)- (iii)" is understood to mean that the total content of each of reactants (i)-(iii) to be made to react is added to the reaction vessel before starting the reaction.

[0060] In one embodiment of the present invention, the total content of each of the reactants (i)-(iii) to be made to react is added to the reaction vessel before starting the reaction, that is to say that the reaction is completely nonsequential, and the polymer is a completely nonsequential reaction product 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) is added to the reaction vessel before starting the reaction.

[0061] In one embodiment, the polyester is prepared by a one-stage 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 isostearic acid to the polyglycerol-3.

[0062] Triglycerol has the formula H-[-OGIy]3-OH in which Gly designates a glycerol residue after removal of two hydroxyl groups.

[0063] 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): [Chem 1]

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 ; 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.

[0064] Examples of polyglycerol-3 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 in particular has a value from 2 to 7, more particularly from 2 to 5 and in particular 2, 3 or 4, or mixtures of oligoglycerols in these ranges.

[0065] Particularly appropriate examples of polyglycerol-3 comprise a mixture of polyglycerols having the following distribution, in which all the percentages by weight are based with respect to the total weight of the polyglycerol-3 in the form of a mixture:

- glycerol: from 0% to 30% by weight, preferably from 0% to 20% by weight, particularly preferably from 0% to 15% by weight;

- diglycerol; from 10% to 40% by weight, preferably from 15% to 35% by weight, particularly preferably from 20% to 32% by weight;

- triglycerol: from 10% to 65% by weight, preferably from 15% to 60% by weight, particularly preferably from 18% to 55% by weight;

- tetraglyerol: from 2% to 25% by weight, preferably from 5% to 20% by weight, particularly preferably from 8% to 20% by weight;

- pentaglycerol: from 0% to 15% by weight, preferably from 0% to 10% by weight, particularly preferably from 0% to 5% by weight;

- hexaglycerol: from 0% to 15% by weight, preferably from 0% to 10% by weight, particularly preferably from 0% to 5% by weight;

- heptaglycerol: from 0% to 10% by weight, preferably from 0% to 5% by weight, particularly preferably from 0% to 3% by weight;

- octaglycerol: from 0% to 10% by weight, preferably from 0% to 5% by weight, particularly preferably from 0% to 3% by weight;

- nonaglycerol: from 0% to 5% by weight, preferably from 0% to 3% by weight, particularly preferably from 0% to 2% by weight;

- decaglycerol: from 0% to 5% by weight, preferably from 0% to 3% by weight, particularly preferably from 0% to 2% by weight.

[0066] In one embodiment, a polyglycerol-3 in the form of a mixture comprises the following distribution of polyglycerols: Glycerol: from 0% to 30% by weight;

Diglycerol: from 15% to 40% by weight;

Triglycerol: from 10% to 55% by weight;

Tetraglycerol: from 2% to 25% by weight;

Pentaglycerol and higher components: from 0% to 15% by weight, with respect to the total weight of the polyglycerol-3 in the form of a mixture.

[0067] 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, with respect to the total weight of the polyglycerol-3 in the form of a mixture.

[0068] In one embodiment, a polyglycerol-3 in the form of a mixture 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 percentages by weight are with respect to the total weight of the polyglycerol-3 in the form of a mixture.

[0069] A particularly preferred polyglycerol-3 in the form of a mixture comprises at least 25% by weight of diglycerol, at least 45% by weight of triglycerol and at least 10% by weight of tetraglycerol, with respect to the total weight of the polyglycerol-3 in the form of a mixture.

[0070] The analysis of such a polyglycerol-3 composition can be carried out in order to determine its median or "mean" polyglycerol number. The examples of polyglycerols above 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.

Dimer acid

[0071 ] The dimer acid can be any dicarboxylic acid having at least 4 carbon atoms. They can be linear or branched, such as, for example, the dimers prepared from malonic acid, succinic acid, fumaric acid, dimethylglutaric acid or trimethyladipic acid, and from their anhydrides.

[0072] Dimer fatty acids are particularly useful. As is known, these are mixtures of acyclic and cyclic dicarboxylic acids which are obtained by a catalyzed dimerization reaction of unsaturated fatty acids having from 12 to 22 carbon atoms.

[0073] For the preparation and the 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.

[0074] The dicarboxylic acids can 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.

[0075] Preferred dimer acids are typically derived from triglycerides rich in C18 ester groups, which can be hydrolyzed to produce unsaturated fatty C18 monoacids. The starting materials can be derived from tallow oil and rapeseed oil but other natural sources, such as flax seeds, soybean, pumpkin and walnut, can be used. The target monoacids used in the reaction are rich in forms of oleic and linoleic acids which are described in the list of fatty acids which is contained below. Dimerization results mainly in the dimerization of unsaturated fatty acids, but trimers are also formed. After reaction, the product can be stored in the form of a mixture of reaction products or it can 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).

[0076] 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.

[0077] 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.

[0078] In one embodiment, the copolymer of the present invention is prepared from at least one hydrogenated dimer acid.

[0079] In another embodiment, the polymer is prepared from a hydrogenated dimer acid comprising hydrogenated dimerized C18 fatty acids, which hydrogenated dimer acid is obtained by dimerization of unsaturated C18 fatty acids and subsequent hydrogenation.

[0080] In one embodiment, the hydrogenated dimer acid contains a content of trimer acid ranging from approximately 5% to 25% by weight, based on the total weight of hydrogenated dimer acid.

[0081] In another embodiment, the hydrogenated dimer acid contains a predominance (at least 60% by weight, more preferentially at least 75% by weight, but at most 95% by weight, or better still at most 90% by weight, or even better still at most 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).

Fatty C8-C30 monoacid

[0082] Fatty C8-C30 monoacids can include natural or refined fatty acids, such as hydrolyzed rapeseed oil, sunflower oils, and the like, but these contain both lower and higher MW chains. Useful fatty monoacids can be linear, branched, saturated, unsaturated and aromatic materials with an acidity provided by carboxylic acid fractions.

[0083] Acids suitable for the invention comprise caprylic acid (C8), pelargonic acid (C9), capric acid (C10), undecylic acid (C11 ), lauric acid (C12), tridecylic acid (C13), myristic acid (C14), pentadecylic acid (C15), palmitic acid (C16), margaric acid (C17), stearic acid (C18), isostearic acid (C18), nonadecylic acid (C19), arachidic acid (C20), behenic acid (C22) and lignoceric acid (C24). [0084] 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. 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 by-product in the creation of the dimer acid described above.

[0085] Another way to obtain a liquid product consists in using unsaturated, linear and branched, fatty monoacids. These unsaturated acids can include palmitoleic acid (C16:1 ), vaccenic acid (C18: 1 ), oleic acid (C18: 1 ), elaidic acid (C18: 1 ), linoleic acid (C18:2), linolelaidic acid (C18: 2), a-linolenic acid (C18:3), y-linolenic acid (C18:3), stearidonic acid (C18:4), paullinic acid (C20:1 ), gondoic acid (C20:1 ), dihomolinolenic acid (C20:3), mead acid (C20:3), arachidonic acid (C20:4), eicosapentaenoic acid (C20:5), erucic acid (C22:1 ), docosatetraenoic acid (C22:4), cervonic acid (C22:6) and nervonic acid (C24:1 ). 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.

[0086] In one embodiment, isostearic acid will be preferred.

[0087] In a particularly preferred embodiment, the polyester of the invention is a substantially or completely 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 triglycerol and at least 10% by weight of tetraglycerol, in each case with respect to the total weight of polyglycerol;

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

[0088] In one embodiment, the polyester is prepared by a one-stage 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 isostearic acid to the polyglycerol-3.

[0089] In one embodiment, it is preferable to have a total degree of esterification of the available polyglycerol hydroxyl fragments (total esterification) of 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%. More important still, 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%.

[0090] It is preferable to have a total esterification of 28% to 57% with an esterification with a dimer acid of 20% to 30% and an esterification with a monoacid between 8% and 27%.

[0091] 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 between 13% and 20%.

[0092] 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 between 4% and 40%.

[0093] 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 between 8% and 27%.

[0094] It is also even more preferable to have a total esterification of approximately 40% with an esterification with a hydrogenated dimer acid of approximately 20% and an esterification with a monoacid of approximately 20%.

[0095] It is also even more preferable to have also the most preferred a total esterification of approximately 40% with an esterification with a hydrogenated dimer acid of approximately 27% and an esterification with a monoacid of approximately 13%.

[0096] In one embodiment, the reacted components are in a molar ratio of 1 mole of polyglycerol-3, 0.5 to 1 mole of dimer acid and 0.2 to 1 .7 mole of fatty acid. [0097] In another embodiment, the reacted components are in a molar ratio of 1 mole of polyglycerol-3, 0.5 to 0.75 mole of dimer acid and 0.4 to 1 .35 mole of isostearic acid.

[0098] In another embodiment, the reacted components are in a molar ratio of 1 mole of polyglycerol-3, 0.5 to 0.7 mole of dimer acid and 0.65 to 1 mole of isostearic acid.

[0099] In another embodiment, the reacted components are in a molar ratio of 1 mole of polyglycerol-3, 0.5 to 1 mole of hydrogenated dimer acid and 0.2 to 1 .7 mole of isostearic acid.

[0100] In another embodiment, the reacted components are in a molar ratio of 1 mole of polyglycerol-3, 0.5 to 0.75 mole of hydrogenated dimer acid and 0.4 to 1 .35 mole of isostearic acid.

[0101] In another embodiment, the reacted components are in a molar ratio of 1 mole of polyglycerol-3, 0.5 to 0.7 mole of hydrogenated dimer acid and 0.65 to 1 mole of isostearic acid.

[0102] In another embodiment, the reacted components are in a molar ratio of 1 mole of polyglycerol-3, 0.5 to 1 mole of hydrogenated dimer acid and 0.2 to 1 .7 mole of isostearic acid.

[0103] In another embodiment, the reacted components are in a molar ratio of 1 mole of polyglycerol-3, 0.5 to 0.75 mole of hydrogenated dimer acid and 0.4 to 1 .35 mole of isostearic acid.

[0104] In another embodiment, the reacted components are in a molar ratio of 1 mole of polyglycerol-3, 0.5 to 0.7 mole of hydrogenated dimer acid and 0.65 to 1 mole of isostearic acid.

[0105] In another embodiment, the reacted components are in a molar ratio of 1 mole of polyglycerol-3, 0.67 mole of hydrogenated C36 dimer acid and 0.67 mole of isostearic acid.

[0106] In a particularly preferred embodiment, the reacted components are in a molar ratio of 1 mole of polyglycerol-3, 0.5 mole of hydrogenated C36 dimer acid and 1 mole of isostearic acid. [0107] 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 termination so that crosslinking, for example, via the trimer acid, results in much higher viscosities.

[0108] The target viscosity of the pure polymer must be > 50 000 mPa.s and less than 5 000 000 mPa.s at 25°C.

[0109] In a preferred embodiment, the target viscosity is > 75 000 mPa.s and < 2 500 000 mPa.s at 25°C.

[0110] In another preferred embodiment, the target viscosity is > 100 000 mPa.s and < 2 000 000 mPa.s at 25°C.

[0111] In a particularly preferred embodiment, the target viscosity is > 1 000 000 mPa.s and < 2 000 000 mPa.s at 25°C.

[0112] 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 carried out. The polyesters of the invention exhibit a Newtonian behavior and thus have a constant viscosity over a wide range of shear rates. In addition, the polymers of this description have 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.

[0113] The polyesters of the invention are characterized by weight-average molecular weights > 2500 Da and < 1 000 000 Da, measured by GC using linear polystyrene standards.

[0114] The GC column used for these tests constituted 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 monodispersed. The narrow range polystyrene GC calibrating 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 weight is automatically calculated by standard GC software.

[0115] In a preferred embodiment, the polyesters described have a weight-average molecular weight > 4000 Da and < 250 000 Da, measured by GC using linear polystyrene standards. In a particularly preferred embodiment, the polymers described have a weight-average molecular weight > 5000 Da and < 150 000 Da, measured by GC using linear polystyrene standards.

[0116] In yet another embodiment, the polyester of the invention exhibits a combination of weight-average molecular weight > 5000 Da and < 150 000 Da, measured by GC using linear polystyrene standards, and of viscosity at 25°C > 100 000 mPa.s and < 2 000 000 mPa.s.

[0117] In a preferred embodiment, the polyester of the invention is a substantially or completely nonsequential 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 diglycerol, at least 45% by weight of triglycerol and at least 10% by weight of tetraglycerol, in each case with respect to the total weight of 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 from 5% to 25% by weight of hydrogenated C54 triacid, in each case with respect to the total weight of hydrogenated acid; and

(iii) isostearic acid; in which the polymer exhibits a combination of weight-average molecular weight > 5 000 Da and < 15 000 Da, measured with GC 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 approximately 40%, an esterification with a hydrogenated dimer acid of approximately 27% and an esterification with a monoacid of approximately 13%.

[0118] In practice, given that the starting 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 non-theoretical) hydroxyl fractions and carboxylic acid fractions, such as are determined by methods such as mass spectrometry, NMR and liquid chromatography. The above esterification ranges are based on the ideal structure of polyglycerol-3 and of the C36 dimer acid. The actual ranges can thus be slightly different from the values indicated above and can be calculated based on these analytical values.

[0119] It is more practical to define the extent of the polymerization by the final acid number. The initial acid values, in the light of the distribution of the polyglycerol, monoacid and polyacid fractions present, can be reliably calculated using the actual acid value determined by the starting ingredient used.

[0120] For an example, the initial total acid number ("AV", which is commonly defined in mg of KOH/g of total reactant), is 135 AV. This comprises 68 AV for the dimer acid and 67 AV for the isostearic acid for a preferred embodiment containing 1 mole of polyglycerol-3, 0.5 mole of hydrogenated C36 dimer acid and 1 mole 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.

[0121] Thus, the completion rate of the reaction is defined by [Math 1]

(1 - final AV)/initial AV.

[0122] In one embodiment, the polyesters of the invention have final acid numbers from 0.1 to < 25 mg of KOH/g of polymer.

[0123] In a preferred embodiment, the polyesters of the invention have final acid numbers from 0.1 to < 10 mg of KOH/g of polymer.

[0124] In a particularly preferred embodiment, the polyesters of the invention have final acid numbers from 0.1 to < 5 mg of KOH/g of polymer.

[0125] 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%.

[0126] In a preferred embodiment, the completion rate of the reaction of such mixtures to give final polymer is > 90%. [0127] In a particularly preferred embodiment, the completion rate of the reaction of such mixtures to give final polymer is > 95%.

[0128] In a preferred embodiment, the polyester of the invention is a reaction product 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 the document US 2021/0259945.

[0129] According to a particularly preferred form of the invention, the composition comprises at least one oily solution comprising: a) at least one 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 having from 8 to 30 carbon atoms, the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mole of polyglycerol-3, of 0.5 to 1 mole of dimer acid and of 0.1 to 2.0 moles of fatty acids; and b) at least one nonvolatile oil as defined above.

[0130] According to a particular form, the nonvolatile oil is a triglyceride of fatty acids containing from 4 to 24 carbon atoms, and more particularly a triglyceride of capryl ic/capric acids (INCI name: Caprylic/Capric Triglyceride).

[0131 ] The oily solution of polyester of the invention can be obtained by mixing the polyester with the nonvolatile oil or oils at approximately 80-100°C. The combined mixture is subsequently further cooled to 50-70°C to be discharged from the reactor and stored.

[0132] The oily solution of polyester of the invention 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, with respect to the total weight of the oily solution.

[0133] According to a preferred embodiment, the composition of the invention contains an oily solution comprising 40% by weight of triglyceride of caprylic/capric acids and 60% by weight of polyester of polyglycerol-3, of hydrogenated C36 dimer acid and of isostearic acid, with respect to the total weight of the oily solution, in a molar ratio of 1/0.5/1 , as described in example 10 (copolymer) and example 28 (oily mixture) of the document US 2021/0259945.

[0134] According to a particularly preferred form of the invention, the composition comprises an oily solution comprising: a) a polyester obtained by reaction:

(i) of polyglycerol-3, and

(ii) of a hydrogenated C36 dimer acid, and

(iii) of isostearic acid; the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mole of polyglycerol-3, of 0.5 to 1 mole of dimer acid and of 0.1 to 2.0 moles of fatty acids; and b) a triglyceride of caprylic/capric acids; said mixture having, as INCI name: Diisostearoyl Polyglyceryl-3 Dimer Dilinoleate (and) Caprylic/Capric Triglyceride.

[0135] Such an oily solution is sold under the name SolAmaze Natural® by Nouryon, comprising 60% by weight, as active material, of polyester and 40% by weight of a triglyceride of caprylic/capric acids, with respect to the total weight of the oily solution.

Waxes

[0136] The composition in accordance with the invention comprises at least one wax.

[0137] Within the meaning of the invention, the term “waxes” is understood to mean lipophilic compounds which are solid at ambient temperature (25°C) and at atmospheric pressure (760 mmHg), with a reversible solid/liquid change of state, having a melting point of greater than or equal to 40°C which can range up to 120°C.

[0138] The waxes described in the document Ullmann’s Encyclopedia of Industrial Chemistry 2015, Wiley-VCH Verlag GmbH & Co. KGaA, are more particularly concerned.

[0139] Such waxes can in particular be natural but also synthetic.

[0140] The term “natural” wax is understood to denote any wax pre-existing in nature or which can be transformed, extracted or purified from natural compounds existing in nature. [0141] Mention may in particular be made, among natural waxes, of waxes referred to as fossil waxes, including those of petroleum origin, such as ozokerite, pyropissite, microcrystalline waxes also referred to as paraffins - including crude or slack waxes, slack wax raffinates, deoiled slack wax, soft waxes, semirefined waxes, filtered waxes, refined waxes - and microcrystalline waxes referred to as microwaxes, including bright stock slack wax. The fossil waxes also contain lignite, also known as montan wax, or peat wax.

[0142] Mention may be made, as natural waxes other than fossil waxes, of vegetable waxes.

[0143] Mention may be made, as examples of vegetable waxes, of carnauba wax, candelilla wax, ouricury wax, sugarcane wax, jojoba waxes, Trithrinax campestris wax, raffia wax, alfalfa wax, wax extracted from Douglas fir, sunflower waxes, sisal wax, flax wax, cotton wax, Batavia dammar wax, cereal wax, tea wax, coffee wax, rice wax, palm wax, Japan wax, their mixtures and their derivatives.

[0144] Mention may be made, as particular wax, of the mixture of jojoba waxes and of sunflower seed wax with the INCI name: Jojoba Esters (and) Helianthus Annuus (Sunflower) Seed Wax (and) Polyglycerin-3 (and) Tocopherol, such as the commercial product Definicire® sold by Gattefosse.

[0145] Mention may be made, as natural wax other than vegetable waxes, of beeswax.

[0146] The term “synthetic” wax is understood to denote waxes, the synthesis of which requires one or more chemical reactions carried out by a human being.

[0147] Among the synthetic waxes, semisynthetic waxes and totally synthetic waxes can be distinguished. Synthetic waxes can be waxes obtained via a Fischer- Tropsch process, for example constituted of paraffins with a number of carbon atoms ranging from 20 to 50, or polyolefin waxes, for example homo- or copolymers of ethylene, of propene or of butene, indeed even of longer-chain a- olefins. The latter can be obtained by thermomechanical degradation of plastic polyethylene, by the Ziegler process, by high-pressure processes, or also via processes catalyzed by metallocene entities. These waxes can be crystallizable, partially crystallizable or amorphous. The abovementioned synthetic waxes are generally nonpolar and can be chemically treated in order to obtain polar waxes, for example by one or more of the following reactions: air oxidation, grafting, esterification, neutralization with metal soaps, amidation, direct copolymerizations or addition reactions.

[0148] According to a preferred form, the composition of the invention comprises at least one natural vegetable wax chosen from rice waxes, carnauba waxes, jojoba waxes, sunflower waxes and their mixtures.

[0149] According to a particularly preferred form, the amount of wax(es) present in the composition of the invention varies, preferably at contents ranging from 1 % to 50% by weight, preferably from 10% to 40% by weight, with respect to the total weight of said composition.

Pulverulent colorants

[0150] According to a preferential embodiment, the composition according to the invention comprises at least one pulverulent colorant.

[0151 ] The pulverulent colorants can be chosen from inorganic pigments, organic pigments, pearlescent agents and their mixtures.

[0152] The term “pigments” is understood to mean white or colored, inorganic or organic, particles which are insoluble in an aqueous medium and which are intended to color and/or opacify the resulting composition and/or deposit. These pigments can be white or colored, and inorganic and/or organic.

[0153] According to a particular embodiment, the pigments used according to the invention are chosen from inorganic pigments.

[0154] The term “inorganic pigment” is understood to mean any pigment which satisfies the definition of Ullmann’s Encyclopedia in the chapter “Pigments, Inorganic”. Mention may be made, among the inorganic pigments of use in the present invention, of zirconium or cerium oxides, and also zinc, iron (black, yellow or red) or chromium oxides, manganese violet, ultramarine blue, chromium hydrate and ferric blue, titanium dioxide, or metal powders, such as aluminum powder and copper powder. The following inorganic pigments can also be used: Ta2Os, TisOs, Ti2Os, TiO, ZrO2 as a mixture with TiO2, ZrO2, Nb20s, CeO2 or ZnS. [0155] The size of the pigment of use in the context of the present invention is generally greater than 100 nm and can range up to 10 pm, preferably from 200 nm to 5 pm and more preferentially from 300 nm to 1 pm.

[0156] According to a particular form of the invention, the pigments exhibit a size characterized by a D[50] of greater than 100 nm and which can range up to 10 pm, preferably from 200 nm to 5 pm and more preferentially from 300 nm to 1 pm.

[0157] The sizes are measured by static light scattering using a commercial particle size analyzer of MasterSizer 3000® type from Malvern, which makes it possible to determine the particle size distribution of all of the particles over a wide range which can extend from 0.01 pm to 1000 pm. The data are processed on the basis of the conventional Mie scattering theory. This theory is the most suitable for size distributions ranging from the submicronic to multimicronic; it makes it possible to determine an “effective” particle diameter. This theory is in particular described in the publication by Van de Hulst, H.C., Light Scattering by Small Particles, Chapters 9 and 10, Wiley, New York, 1957.

[0158] D[50] represents the maximum size exhibited by 50% by volume of the particles.

[0159] According to a particular form of the invention, the inorganic pigment comprises a lipophilic or hydrophobic coating; the latter is preferably present in the oily phase of the composition according to the invention.

[0160] According to a particular embodiment of the invention, the pigments can be coated according to the invention with at least one compound chosen from metal soaps; N-acylamino acids or their salts; lecithin and its derivatives; isopropyl triisostearyl titanate; isostearyl sebacate; natural vegetable or animal waxes; polar synthetic waxes; fatty esters; phospholipids; and their mixtures.

[0161] According to a preferential embodiment, the pigments can be coated according to the invention with an N-acylamino acid or one of its salts which can comprise an acyl group having from 8 to 22 carbon atoms, such as, for example, a 2-ethylhexanoyl, caproyl, lauroyl, myristoyl, palmitoyl, stearoyl or cocoyl group.

[0162] The amino acid can, for example, be lysine, glutamic acid or alanine. The salts of these compounds can be the aluminum, magnesium, calcium, zirconium, zinc, sodium or potassium salts. Thus, according to a particularly preferred embodiment, the pigments can be coated with an N-acylamino acid derivative which can in particular be a glutamic acid derivative and/or one of its salts, and more particularly a stearoyl glutamate, such as, for example, aluminum stearoyl glutamate. Mention may be made, as examples of pigments treated with aluminum stearoyl glutamate, of titanium dioxide pigments and black, red and yellow iron oxide pigments sold under the trade name Nai® by Miyoshi Kasei.

[0163] According to a preferential embodiment, the pigments can be coated according to the invention with isopropyl triisostearyl titanate. Mention may be made, as examples of pigments treated with isopropyl titanium tri isostearate (ITT), of titanium dioxide pigments and black, red and yellow iron oxide pigments sold under the trade names BWB0-I2® (Iron Oxide Cl 77499 and Isopropyl Titanium Triisostearate), BWY0-I2® (Iron Oxide Cl 77492 and Isopropyl Titanium Tri isostearate) and BWR0-I2® (Iron Oxide Cl 77491 and Isopropyl Titanium Triisostearate) by Kobo.

[0164] The pigments which can be used according to the invention can also be organic pigments.

[0165] The term “organic pigment” is understood to mean any pigment which satisfies the definition in Ullmann’s Encyclopedia in the chapter “Pigments, Organic”. The organic pigment can in particular be chosen from nitroso, nitro, azo, xanthene, quinoline, anthraquinone, phthalocyanine, metal-complex type, isoindolinone, isoindoline, quinacridone, perinone, perylene, diketopyrrolopyrrole, thioindigo, dioxazine, triphenylmethane or quinophthalone compounds.

[0166] The organic pigment(s) can be chosen, for example, from carmine, carbon black, aniline black, melanin, azo yellow, quinacridone, phthalocyanine blue, sorghum red, the blue pigments codified in the Color Index under the references Cl 42090, 69800, 69825, 73000, 74100 and 74160, the yellow pigments codified in the Color Index under the references Cl 11680, 11710, 15985, 19140, 20040, 21100, 21108, 47000 and 47005, the green pigments codified in the Color Index under the references Cl 61565, 61570 and 74260, the orange pigments codified in the Color Index under the references Cl 11725, 15510, 45370 and 71105, the red pigments codified in the Color Index under the references Cl 12085, 12120, 12370, 12420, 12490, 14700, 15525, 15580, 15620, 15630, 15800, 15850, 15865, 15880, 17200, 26100, 45380, 45410, 58000, 73360, 73915 and 75470, and the pigments obtained by oxidative polymerization of indole or phenol derivatives as are described in the patent FR 2 679 771 .

[0167] These pigments can also be in the form of composite pigments as are described in the patent EP 1 184 426. These composite pigments can be composed in particular of particles comprising an inorganic core at least partially covered with an organic pigment and at least one binder providing the fixing of the organic pigments to the core.

[0168] The pigment can also be a lake. The term “lake” is understood to mean insolubilized dyes adsorbed on insoluble particles, the assembly thus obtained remaining insoluble during use.

[0169] The inorganic substrates onto which the dyes are adsorbed are, for example, alumina, silica, calcium sodium borosilicate or calcium aluminum borosilicate, and aluminum.

[0170] Mention may be made, among the organic dyes, of cochineal carmine.

Mention may also be made of the products known under the following names: D&C Red 21 (Cl 45 380), D&C Orange 5 (Cl 45 370), D&C Red 27 (Cl 45 410), D&C Orange 10 (Cl 45 425), D&C Red 3 (Cl 45 430), D&C Red 4 (Cl 15 510), D&C Red 33 (Cl 17 200), D&C Yellow 5 (Cl 19 140), D&C Yellow 6 (Cl 15 985), D&C Green (Cl 61 570), D&C Yellow 1 O (Cl 77 002), D&C Green 3 (Cl 42 053) or D&C Blue 1 (Cl 42 090).

[0171] Mention may be made, by way of an example of a lake, of the product known under the name D&C Red 7 (Cl 15 850: 1 ).

[0172] Preferably, the composition according to the invention comprises at least one pulverulent colorant of inorganic pigment type, in particular chosen from metal oxides, and more particularly uncoated black iron oxides (Cl 77499).

[0173] The pearlescent agents can be chosen from white pearlescent pigments, such as mica coated with titanium or with bismuth oxychloride, colored pearlescent pigments, such as titanium oxide-coated mica with iron oxides, titanium oxidecoated mica with in particular ferric blue or chromium oxide, or titanium oxide- coated mica with an organic pigment of the abovementioned type, and also pearlescent pigments based on bismuth oxychloride.

[0174] Preferably, the pulverulent colorant(s) is (are) present, preferably, in the composition in a content ranging from 1 % to 30% by weight, preferably from 2% to 15% by weight, with respect to the total weight of the composition.

Emulsifiers

[0175] The water-in-oil emulsions according to the invention generally comprise one or more emulsifying surfactants, preferably nonionic surfactants with an HLB of less than or equal to 8.

[0176] Within the meaning of the present invention, the term “emulsifying surfactant” is understood to mean an amphiphilic surface-active compound, that is to say one exhibiting two parts of different polarities. Generally, one is lipophilic (soluble or dispersible in an oily phase). The other is hydrophilic (soluble or dispersible in water). Emulsifying surfactants are characterized by the value of their HLB (Hydrophilic Lipophilic Balance), the HLB being the ratio of the hydrophilic part to the lipophilic part in the molecule. The term “HLB” is well known to a person skilled in the art and is described, for example, in “The HLB System. A Time- Saving Guide to Emulsifier Selection” (published by ICI Americas Inc.; 1984). For emulsifying surfactants, the HLB generally ranges from 3 to 8 for the preparation of W/O emulsions. The HLB of the surfactant(s) used according to the invention can be determined by the Griffin method or the Davies method.

[0177] Mention may preferably be made of nonionic nonsilicone emulsifying surfactants, in particular alkyl esters or ethers of sorbitan, of glycerol, of polyol or of sugars.

[0178] Mention may in particular be made, as polyol alkyl esters, of polyethylene glycol esters, such as PEG-30 dipolyhydroxystearate, such as the product sold under the name Cithrol DPHS-SO-(MV)® from Croda.

[0179] Mention may be made, as glycerol and/or sorbitan esters, for example, of polyglycerol isostearate (INCI name: Polyglyceryl-4 Isostearate), such as the product sold under the name Isolan Gl 34® by Evonik Goldschmidt; Polyglyceryl- 3 Di isostearate, sold under the name Lameform TGI® by BASF; sorbitan isostearate, such as the product sold under the name Arlacel 987® by ICI; sorbitan glyceryl isostearate, such as the product sold under the name Arlacel 986® by ICI; the diester of a mixture of isostearic, polyhydroxystearic and sebacic acids with polyglycerol-4 (INCI name: Polyglyceryl-4

Diisostearate/(Polyhydroxystearate/Sebacate), such as the product sold under the name Isolan GPS® by Evonik; and their mixtures.

C2-C6 Monoalcohol

[0180] According to a particularly preferred form, the composition additionally comprises at least one monoalcohol comprising from 2 to 6 carbon atoms.

[0181] The monoalcohol(s) in accordance with the invention preferably comprise from 2 to 4 carbon atoms and their mixtures.

[0182] The monoalcohol(s) can be represented, for example, by the formula RaOH, in which Ra represents a linear or branched alkyl group comprising from 2 to 6 carbon atoms.

[0183] Mention may be made, by way of monoalcohol, of ethanol, isopropanol, propanol or butanol, and more particularly of ethanol.

[0184] According to an advantageous embodiment, the amount of monoalcohol(s) varies from 1% to 8% by weight, preferably from 2% to 5% by weight, with respect to the total weight of said composition.

Cosmetic compositions

[0185] The present invention also relates to a cosmetic composition comprising, in a physiologically acceptable medium, a composition as defined above.

[0186] The physiologically acceptable medium is generally adapted to the nature of the support onto which the composition has to be applied, and also to the appearance under which the composition has to be packaged.

[0187] The compositions according to the invention can additionally comprise additives commonly used in care and/or makeup products, such as:

- active agents, such as vitamins, for example vitamins A, E, C and B3, adenosine, hyaluronic acid and its salts;

- additional fat-soluble or water-soluble colorants;

- LIV screening agents;

- fillers; - hydrophilic gelling agents;

- film-forming agents;

- lipophilic gelling agents;

- fragrances;

- preservatives;

- and their mixtures.

[0188] It is a matter of routine operations for a person skilled in the art to adjust the nature and the amount of the additives present in the compositions in accordance with the invention so that the cosmetic properties desired for these are not thereby affected.

Water-soluble or fat-soluble colorants

[0189] A composition according to the invention can comprise at least one water- soluble or fat-soluble colorant and preferably in a proportion of at least 0.01 % by weight, with respect to the total weight of the composition.

[0190] For obvious reasons, this amount is liable to vary significantly with regard to the desired intensity of the color effect and to the color intensity provided by the colorants under consideration, and its adjustment clearly falls within the competence of a person skilled in the art.

[0191] The additional colorants suitable for the invention can be fat-soluble.

[0192] Within the meaning of the invention, the term “fat-soluble colorant” is understood to mean any natural or synthetic, generally organic, compound which is soluble in an oily phase or miscible with a fatty substance and which is capable of imparting color.

[0193] Mention may in particular be made, as fat-soluble dyes suitable for the invention, of synthetic or natural fat-soluble dyes, such as, for example, DC Red 17, DC Red 21 , DC Red 27, DC Green 6, DC Yellow 11 , DC Violet 2, DC Orange 5, Sudan red, carotenes ( -carotene, lycopene), xanthophylls (capsanthin, capsorubin, lutein), palm oil, Sudan brown, quinoline yellow, annatto or curcumin.

[0194] [00133] The additional colorants suitable for the invention can be water- soluble. [0195] [00134] Within the meaning of the invention, the term “water-soluble colorant” is understood to mean any natural or synthetic, generally organic, compound which is soluble in an aqueous phase or water-miscible and which is capable of imparting color.

[0196] Mention may in particular be made, as water-soluble dyes suitable for the invention, of synthetic or natural water-soluble dyes, such as, for example, FDC Red 4, DC Red 6, DC Red 22, DC Red 28, DC Red 30, DC Red 33, DC Orange 4, DC Yellow 5, DC Yellow 6, DC Yellow 8, FDC Green 3, DC Green 5, FDC Blue 1 , betanin (beetroot), carmine, copper chlorophyllin, methylene blue, anthocyanins (enocyanin, black carrot, hibiscus or elder), caramel or riboflavin.

Fillers

[0197] The compositions in accordance with the invention can also comprise at least one filler which makes it possible in particular to confer on them additional properties of improved stability, wear property, coverage and/or mattness.

[0198] The term “filler” should be understood as meaning colorless or white solid particles of any shape which are provided in an insoluble form and dispersed in the medium of the composition. They make it possible to confer body or firmness on the composition and/or softness and uniformity on the makeup.

[0199] The fillers can be inorganic or organic.

[0200] Preferably, they can be chosen from natural fillers or fillers of natural origin.

[0201] The term "natural compound" is understood to mean a compound which is obtained directly from the earth or the soil, or from plants or animals, via, if appropriate, one or more physical processes, such as, for example, milling, refining, distillation, purification or filtration.

[0202] The term “compound of natural origin" is understood to mean a natural compound which has undergone one or more additional chemical or industrial treatments, bringing about modifications which do not affect the essential qualities of this compound, and/or a compound predominantly comprising natural constituents which have or have not undergone transformations. Mention may be made, as nonlimiting example of additional chemical or industrial treatment bringing about modifications which do not affect the essential qualities of a natural compound, of those permitted by the controlling bodies, such as Ecocert (Reference system for biological and ecological cosmetic products, January 2003), or defined in recognized handbooks in the field, such as “Cosmetics and Toiletries Magazine”, 2005, Vol. 120, 9: 10.

[0203] The fillers used in the compositions according to the present invention can be of lamellar, globular, spherical or fibrous forms or of any other form intermediate between these defined forms.

[0204] The fillers according to the invention may or may not be surface-coated, and in particular they may be surface-treated with amino acids or any other substance which promotes the dispersion and the compatibility of the filler in the composition. a) Inorganic fillers

[0205] Mention may be made, as examples of inorganic fillers, of talcs, natural or synthetic micas, such as synthetic fluorphlogopites, silica, hydrophobic silica aerogels, hollow silica microspheres, kaolin, calcium carbonate, magnesium carbonate, hydroxyapatite, boron nitride, bismuth oxychloride, glass or ceramic microcapsules, or composites of silica and of titanium dioxide, such as the TSG® series sold by Nippon Sheet Glass. b) Organic fillers

[0206] Mention may be made, as examples of organic fillers, of micronized natural waxes; metal soaps derived from organic carboxylic acids having from 8 to 22 carbon atoms, preferably from 12 to 18 carbon atoms, for example zinc, magnesium or lithium stearate, zinc laurate or magnesium myristate; lauroyl lysine; or cellulose powders, such as that sold by Daito in the Cellulobeads® range.

[0207] Preferentially, kaolin will be used as filler.

[0208] Preferably, the filler(s) are present in the composition in a content ranging from 0.5% to 20% by weight, preferably from 1 % to 15% by weight, more particularly from 3% to 10% by weight, with respect to the total weight of the composition. Gelling agents

[0209] Depending on the viscosity of the composition which it is desired to obtain, one or more gelling agents which are hydrophilic, that is to say soluble or dispersible in water, and/or one or more gelling agents which are lipophilic, that is to say soluble or dispersible in oils, can be incorporated in a composition of the invention.

[0210] Preferably, the hydrophilic gelling agents and/or the lipophilic gelling agents will be chosen from natural gelling agents or gelling agents of natural origin.

Hydrophilic gelling agents

[0211] Mention may be made, as hydrophilic gelling agents, of polysaccharides, for example polysaccharide biopolymers, such as pullulan, xanthan gum, guar gum, locust bean gum, acacia gum, scleroglucans, chitin and chitosan derivatives, carrageenans, gellans, alginates, celluloses, such as cellulose gums, microcrystalline cellulose, carboxymethylcellulose, hydroxymethylcellulose and hydroxypropylcellulose, and their mixtures, and more particularly of pullulan.

[0212] According to a particularly preferred form, the composition of the invention additionally contains a hydrophilic gelling agent chosen from polysaccharides, in particular pullulan.

Lipophilic celling agents

[0213] Mention may also be made, as lipophilic gelling agents, of esters of dextrin and of fatty acid.

[0214] According to a particularly preferred form, the composition of the invention contains a lipophilic gelling agent chosen from esters of dextrin and of fatty acid.

[0215] The esters of dextrin and of fatty acid are, preferably in particular C12 to C24 ones, in particular C14 to C18 ones, or their mixtures.

[0216] More preferentially, the dextrin ester is an ester of dextrin and of C12-C18, in particular C14-C18, fatty acid.

[0217] According to a particularly preferred embodiment, the dextrin ester is chosen from dextrin myristate and/or dextrin palmitate. [0218] Particularly preferably, the dextrin ester is dextrin palmitate. The latter can, for example, be chosen from those sold under the names Rheopearl TL®, Rheopearl KL® and Rheopearl® KL2 by Chiba Flour Milling.

[0219] Preferably, the dextrin ester can be present in the composition at concentrations ranging preferably from 0.1 % to 5% by weight and more preferentially from 0.5% to 3% by weight, with respect to the total weight of the composition.

Cosmetic applications

[0220] The composition used according to the invention may be a care and/or makeup composition for keratin materials, such as the skin (outline of the eyes, eyelids), the eyelashes or the eyebrows.

[0221] More especially, the composition according to the invention is a makeup product for the eyelashes, such as a mascara, or a makeup product for the eyebrows.

[0222] Such compositions are in particular prepared according to the general knowledge of a person skilled in the art.

Packaging and application assembly or kit

[0223] The present invention also relates to an assembly, or kit, for the packaging and application of a cosmetic composition for coating keratin materials, comprising:

- a packaging device comprising said cosmetic composition for coating keratin materials, as described above,

- an applicator for said composition.

[0224] According to another aspect, the invention also relates to a makeup assembly comprising: i) an applicator capable of drawing a line on the outline of the eye, ii) a composition in accordance with the invention placed inside a container.

[0225] The container can delimit one or more compartment(s). The container can, for example, be in the form of a tube.

[0226] Such an applicator can be integral with a cap reversibly fitted to said container between a position of closure of said container and a makeup position. [0227] In an alternative form, such an applicator can be irreversibly fitted to said container. Mention may be made, as examples of applicators, of those of felt or brush type which can be constituted of synthetic fibers.

[0228] It is understood that, in the context of the present invention, the percentages by weight given for a compound or a family of compounds are always expressed by weight with respect to the total weight of the composition.

[0229] Throughout the patent application, the term "comprises one" should be understood as meaning "comprising at least one", unless otherwise specified.

[0230] It is understood that the examples which follow are present by way of illustration and that they do not in any way limit the scope of the protection conferred by the present patent application.

Example 1 (invention) and comparative examples 1a, 1b and 1c: mascaras

[0231] Example 1 according to the invention containing 5% by weight of oily solution of polyester of the invention Diisostearoyl Polyglyceryl-3 Dimer Dilinoleate (60%) (and) Caprylic/Capric Triglyceride (40%) was prepared.

[0232] Comparative examples 1a, 1b and 1c outside the invention were prepared.

[0233] Comparative example 1a is of identical composition but contains, instead of the oily solution of polyester of the invention, the polyester Dilinoleic Acid/Butanediol Copolymer (Viscoplast 1 436H® - Biosynthis) in the same amount as starting material (5% by weight).

[0234] Comparative example 1 b is of identical composition but contains, instead of the oily solution of polyester of the invention, the polyester Hydrogenated Castor Oil/Sebacic Acid Copolymer (Crodabond CSA® - Croda) in the same amount as starting material (5% by weight).

[0235] Comparative example 1c is of identical composition but contains, instead of the oily solution of polyester of the invention, the polyester Dimer Dilinoleyl Dimer Dilinoleate (Lusplan DD-DA7® - Nippon Fine Chemical) in the same amount as starting material (5% by weight). [0236] [Table 1 ]

Preparation protocol

[0237] The starting materials were weighed out beforehand using a balance (accuracy = 0.01 g). The ingredients, except the ethanol, were introduced into a manufacturing vessel where the temperature was controlled. The set temperature was fixed at 90°C. The mixture was emulsified at 90°C after complete melting under vigorous stirring with a rotor-stator for 15 minutes. It was then cooled to 30°C under rotor-stator stirring. The ethanol was introduced at 30°C under rotorstator stirring.

Comparative test of wear property of the mascara on the eyelashes

[0238] In order to evaluate the wear property of the mascara, each example was applied to a false-eyelash test specimen and left to dry for 4 hours. The test specimen was subsequently sprinkled with water and was then deposited on a support. Five to-and-fro movements with a finger were carried out in order to simulate rubbing. The intensity of the black mark and the amount of black deposit lost were evaluated.

[0239] The following gradings A, B, C and D were given for the evaluation of the formation of flakes due to crumbling: A: no crumbling was observed;

B: slight crumbling was observed;

C: crumbling was observed;

D: significant crumbling is observed.

[0240] The following gradings A, B, C and D were given for the evaluation of the tendency to form marks: A: no mark was observed;

B: a slight mark was observed;

C: a mark was observed.

[0241] The results obtained are shown in the table below.

[0242] [Table 2]

[0243] From the observations and the gradings, example 1 of the invention according to the invention showed superior qualities of resistance to water and to rubbing actions than those of comparative examples 1 a, 1 b and 1 c.

Claims

[Claim 1 ] A liquid composition for caring for and/or making up keratin materials, such as the skin, the outline of the eyes, the outline of the eyelids, the eyelashes and the eyebrows, in the form of a water-in-oil emulsion, comprising in particular in a physiologically acceptable medium:

(i) at least one polyglycerol-3;

(ii) at least one dimer acid; and

B) at least one continuous oily phase comprising:

1 ) at least one volatile hydrocarbon oil; and

C) at least one aqueous phase dispersed in said oily phase;

D) at least one wax; and

E) optionally at least one pulverulent colorant.

[Claim 2] The composition as claimed in claim 1 , where the polyester is a substantially or completely nonsequential reaction product.

[Claim 3] The composition as claimed in claim 1 or 2, where the polyester is prepared by a one-stage 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 isostearic acid to the polyglycerol-3.

[Claim 4] The composition as claimed in any one of the preceding claims, where the polyglycerol-3 is triglycerol or a mixture of polyglycerols comprising at least triglycerol; said polyglycerols corresponding to the formula (I)

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.

[Claim 5] The composition as claimed in any one of the preceding claims, where 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 of triglycerol, with respect to the total weight of the polyglycerol-3 in the form of a mixture.

[Claim 6] The composition as claimed in any one of the preceding claims, where 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, of triglycerol; at least 10% by weight, or at least 12% by weight, of tetraglycerol, with respect to the total weight of the polyglycerol-3 in the form of a mixture.

[Claim 7] The composition as claimed in any one of the preceding claims, where the polyglycerol-3 is in the form of a mixture and comprises at least 25% by weight of diglycerol, at least 45% by weight of triglycerol and at least 10% by weight of tetraglycerol, with respect to the total weight of the polyglycerol-3 in the form of a mixture.

[Claim 8] The composition as claimed in any one of the preceding claims, where the polyester is a substantially or completely nonsequential 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 diglycerol, at least 45% by weight of triglycerol and at least 10% by weight of tetraglycerol, in each case with respect to the total weight of the polyglycerol-3 in the form of a mixture;

[Claim 9] The composition as claimed in any one of the preceding claims, comprising water in a content varying from 1 % to 40% by weight and more preferably still from 5% to 30% by weight, with respect to the total weight of the composition.

[Claim 10] The composition as claimed in any one of the preceding claims, where the total concentration of oily phase varies from 5% to 50% by weight and more particularly varies from 10% to 40% by weight, with respect to the total weight of the composition.

[Claim 11 ] The composition as claimed in any one of the preceding claims, where the volatile hydrocarbon oil or oils are at contents ranging from 5% to 50% by weight, preferably from 10% to 40% by weight, with respect to the total weight of said composition.

[Claim 12] The composition as claimed in any one of the preceding claims, where the volatile hydrocarbon oil is a mixture of volatile linear C9-C12 alkanes with the INCI name: C9-12 Alkane.

[Claim 13] The composition as claimed in any one of the preceding claims, comprising at least one nonvolatile oil, the ratio by weight of the total amount of nonvolatile oil(s) to the amount of polyester being less than 8.0, preferably of between 0 and 8 and more particularly from 1 to 3.

[Claim 14] The composition as claimed in any one of the preceding claims, where the nonvolatile oil is chosen from nonvolatile hydrocarbon oils and more preferentially from triglycerides of fatty acids containing from 4 to 24 carbon atoms, and more particularly is a triglyceride of capryl ic/capric acids (INCI name: Caprylic/Capric Triglyceride).

[Claim 15] The composition as claimed in any one of the preceding claims, where the polyester is a reaction product of polyglycerol-3, of hydrogenated C36 dimer acid and of isostearic acid in a molar ratio of 1/0.5/1 .

[Claim 16] The composition as claimed in any one of the preceding claims, comprising at least one oily solution comprising: a) at least one 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 having from 8 to 30 carbon atoms, the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mole of polyglycerol-3, of 0.5 to 1 mole of dimer acid and of 0.1 to less than 2.0 moles of fatty acids; and b) at least one nonvolatile oil; the ratio by weight of the total amount of nonvolatile oil(s) to the amount of copolymer being less than 8.0.

[Claim 17] The composition as claimed in claim 16, where the oily solution of polyester contains said 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, with respect to the total weight of the oily solution.

[Claim 18] The composition as claimed in claim 16 or 17, where the oily solution comprises 40% by weight of triglyceride of caprylic/capric acids and 60% by weight of polyester of polyglycerol-3, of hydrogenated C36 dimer acid and of isostearic acid, with respect to the total weight of the oily solution, in a molar ratio of 1/0.5/1.

[Claim 19] The composition as claimed in any one of claims 16 to 18, comprising an oily solution comprising: a) a polyester obtained by reaction:

(i) of a polyglycerol-3, and

(ii) of a hydrogenated C36 dimer acid, and

(iii) of isostearic acid; the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mole of polyglycerol-3, of 0.5 to 1 mole of dimer acid and of 0.1 to less than 2.0 moles of fatty acids; and b) a triglyceride of caprylic/capric acids; said mixture having, as INCI name: Diisostearoyl Polyglyceryl-3 Dimer Dilinoleate (and) Caprylic/Capric Triglyceride.

[Claim 20] The composition as claimed in any one of the preceding claims, additionally comprising at least one monoalcohol comprising from 2 to 6 carbon atoms, in particular ethanol.

[Claim 21 ] The composition as claimed in any one of the preceding claims, additionally comprising at least one colorant, preferably chosen from inorganic pigments, organic pigments, pearlescent agents and their mixtures; and more particularly chosen from uncoated black iron oxides.

[Claim 22] The composition as claimed in claim 21 , where the pulverulent colorant(s) is (are) present in a content ranging from 1 % to 30% by weight, preferably from 2% to 15% by weight, with respect to the total weight of the composition.

[Claim 23] The composition as claimed in any one of the preceding claims, additionally comprising at least one additive chosen from:

- UV screening agents;

- fillers;

- waxes;

- film-forming agents;

- hydrophilic gelling agents;

- lipophilic gelling agents;

- fragrances;

- preservatives;

- and their mixtures.

[Claim 24] The composition as claimed in claim 23, additionally containing at least one wax, preferably chosen from natural vegetable waxes, in particular chosen from rice waxes, carnauba waxes, jojoba waxes, sunflower waxes and their mixtures.

[Claim 25] The composition as claimed in claim 23, additionally containing at least one hydrophilic gelling agent, preferably chosen from polysaccharides, in particular pullulan.

[Claim 26] The composition as claimed in claim 23, additionally containing at least one lipophilic gelling agent, preferably chosen from esters of dextrin and of fatty acid, in particular dextrin palmitate.

[Claim 27] An assembly, or kit, for the packaging and application of a cosmetic composition for coating keratin materials, comprising:

- a packaging device comprising said cosmetic composition for coating keratin materials, as defined in any one of the preceding claims,

- an applicator for said composition.

[Claim 28] A method for coating keratin materials, more particularly for making up and/or caring for keratin materials, such as the skin (outline of the eyes, eyelids), the eyelashes and the eyebrows, characterized in that it comprises at least the application to keratin materials of a composition as defined in any one of claims 1 to 26.