WO2012145862A1

WO2012145862A1 - Emulsion w/si foundation

Info

Publication number: WO2012145862A1
Application number: PCT/CN2011/000753
Authority: WO
Inventors: Yan Wang; Dario LIU; Caroline DELAUNAY
Original assignee: L'oréal
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2012-11-01
Also published as: CN103491942A; BR112013022152A2; BR112013022152B1

Abstract

A fluid care and/or make-up cosmetic composition in the form of a water-in-silicone emulsion dedicated in particular to the skin comprises a fatty phase, an aqueous phase and (i) at least one organopolysiloxane elastomer, (ii) at least one dimethicone copolyol, and (iii) at least one C₈-C₂₂ alkyl dimethicone copolyol, and its application to the skin in a cosmetic method for caring and/or making up the keratinic materials, in particular the skin.

Description

"Emulsion W/Si Foundation"

The present invention relates to the field of making up and/or caring for the keratinic materials, in particular the skin and is targeted in particular at providing cosmetic compositions, in particular fluid cosmetic compositions in the form of water-in-silicone emulsions, which are capable, on application, of providing a very fresh feeling via the water droplets on keratinic materials in particular the skin and a long time moisturization, as well as a makeup efficacy. Another subject-matter of the invention is a corresponding care and/or make-up method.

The composition can in particular be a foundation to be applied to the face or neck, a concealer, a tinted cream and a composition for making up the body.

Foundation compositions are commonly used to contribute to an attractive colour to the skin, in particular to the face, but also to conceal imperfections of the skin, such as red blotches or blemishes. Many corresponding formulations have to date been developed which can in particular be differentiated from one another according to whether they have a fluid structure or a solid structure.

The present invention is more particularly concerned with compositions having a texture which is sufficiently fluid to be compatible with application with the fingers by the user.

The present invention is more particularly dedicated to composition in the form of a water-in-silicone emulsion.

Traditionally, the size of the droplets in water-in-oil emulsions ranges between 1 and 5 μιη. Larger droplet size may be sought in order to increase the easiness to break the system and thus to obtain a fresh and light feeling for the consumer when applying it on the skin.

Indeed, the traditional liquid foundation may leave the skin dry after application. This may be due to their low capability to wrap large amounts of water. On the other hand, the getting of watery texture is usually in contradiction with the stability of the emulsion so that balancing the stability and the watery feeling is one of the difficulties the man skilled in the art is faced with. One way to have watery feeling is to enlarge water droplet in the emulsion. Indeed, merely enlarging droplet size presents a concern in terms of stability in view of their easiness to break.

Surprisingly, the present inventors have discovered that the specific combination of (i) at least one organopolysiloxane elastomer, (ii) at least one dimethicone copolyol, and (iii) at least one C₈-C₂₂ alkyl dimethicone copolyol may satisfy the abovementioned requirements.

It has been indeed observed that the specific composition in the form of a water- in-silicone emulsion according to the invention provides water droplets with a larger size, i.e. 5-20 μιη, in comparison to traditional emulsions with a good stability and an improved fresh sensation when applied on keratinic material. Consequently, it makes it possible to increase the amounts of water dispensed to the skin. Those bigger water droplets are moreover still easier to break than small droplets, i.e 2-5 μιη.

Thus, according to a first aspect, a subject-matter of the present invention is a fluid care and/or make-up cosmetic composition in the form of a water-in-silicone emulsion in particular dedicated to the skin comprising a fatty phase, an aqueous phase and

(i) at least one organopolysiloxane elastomer,

(ii) at least one dimethicone copolyol of formula (I)

in which:

Ri, R₂ and R₃ represent, independently of one another, a C C₆ alkyl radical or a -(CH₂)_X - (OCH₂CH2)_y - (OCH₂CH₂CH₂)_z - OR₄ radical, at least one R R₂ or R₃ radical not being an alkyl radical; _t being a hydrogen, a C_!-C₃ alkyl radical or a C₂-C₄ acyl radical;

A is an integer ranging from 0 to 200;

B is an integer ranging from 0 to 50; provided that A and B are not equal to zero at the same time; x is an integer ranging from 1 to 6; y is an integer ranging from 1 to 30; z is an integer ranging from 0 to 5, and

(iii) at least one C8-C22 alkyl dimethicone copolyol of formula (IV)

wherein:

- PE represents from groups (-C2H₄0)_x-(C₃H₆0)_y-R, wherein R is chosen from a hydrogen atom and an alkyl radical comprising from 1 to 4 carbon atoms, x is an integer ranging from 0 to 100, and y is an integer ranging from 0 to 80, provided that x and y are not simultaneously equal to 0; and

- m is an integer ranging from 1 to 40, n is an integer ranging from 10 to 200, o is an integer ranging from 1 to 100, p is an integer ranging from 7 to 21, and q is an integer ranging from 0 to 4.

Indeed, in the presence of at least one C₈-C₂2 alkyl dimethicone copolyol, the compositions according to the invention exhibit a good stability at ambient temperature (25°C). The stability of the compositions according to the present invention also exhibit a good stability at 37°C or 45°C, in particular after storing for 2 months.

Another subject-matter of the invention is a cosmetic method for non- therapeutically caring and/or making up the skin, comprising the application, to the said skin, of a composition of the invention. Unexpectedly, the inventors have indeed found that the compositions according to the invention prove to be very easy to apply to the skin with a good spreadability, are distributed homogeneously over the skin and provide the user with a feeling of freshness and a long time moisturization after application.

In addition, they are very thin and light, and prove to have a very good balance of skincare efficacy perception (fresh and moisturization) as well as make-up efficacy (proper coverage).

Advantageously, the compositions according to the invention can additionally comprise at least one thickening agent, which can be more particularly silica dimethyl silylate.

Advantageously, the compositions of the invention can moreover comprise at least one filler, which can be more particularly boron nitride.

Within the meaning of the present invention, "stable" refers in the sense of the present invention to a composition which, after having been placed in an oven at 45°C for two months, does not, when returned to ambient temperature, exhibit grains perceptible to the touch when a fine layer of the composition is sheared between the fingers.

Within the meaning of the present invention, the term "fluid" is understood to characterize an ability of the composition to flow under its own weight and in particular to spread when it is deposited on a flat surface.

In everything which follows or which precedes, the term "silicone" is understood to denote, in conformity with what is generally accepted, any organosilicon polymer or oligomer with a branched or crosslinked and linear or cyclic structure of variable molecular weight obtained by polymerisation and/or polycondensation of suitably functionalised silanes and essentially composed of a repetition of main units in which the silicon atoms are connected to one another via oxygen atoms (siloxane bond≡Si-0-Si≡), optionally substituted hydrocarbon radicals being directly bonded via a carbon atom to the said silicon atoms. The commonest hydrocarbon radicals are alkyl radicals, in particular Ci-Cio alkyl radicals and especially methyl radicals, fluoroalkyl radicals and aryl radicals, in particular phenyl radicals. They can, for example, be substituted by Cj-Qo ester or ether groups or C₇-C₆₀ aralkyl groups.

The term "volatile oil" is understood to mean, in the present invention, an oil (or non-aqueous medium) 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 oil which is liquid at ambient temperature and which has in particular a nonzero vapor pressure at ambient temperature and atmospheric pressure, in particular which has a vapor pressure ranging from 0.13 Pa to 40 000 Pa (10^"3 to 300 mmHg), preferably ranging from 1.3 Pa to 13 000 Pa (0.01 to 100 mmHg), and preferentially ranging from 1.3 Pa to 1300 Pa (0.01 to 10 mmHg).

In addition, the volatile oil generally has a boiling point, measured at atmospheric pressure, ranging from 150°C to 260°C and preferably ranging from 170°C to 250°C.

The term "silicone oil" is understood to mean an oil comprising at least one silicon atom and in particular comprising Si-0 groups.

The term "fluorinated oil" is understood to mean an oil comprising at least one fluorine atom.

The term "hydrocarbon oil" is understood to mean an oil essentially formed, and even composed, of carbon and hydrogen atoms and optionally of oxygen and nitrogen atoms which does not comprise a silicon or fluorine atom; it can comprise ester, ether, amine and amide groups.

Organopolysiloxane elastomer

The composition according to the invention comprises at least one organopolysiloxane elastomer (also named silicone elastomer).

The organopolysiloxane elastomer might be an emulsifying elastomer or a non- emulsifying elastomer.

In a preferred embodiment, the organopolysiloxane elastomer is an organopolysiloxane elastomer not containing a hydrophilic chain, such as polyoxyalkylene or polyglyqerolated units, which is also known under the name of non-emulsifying elastomer.

In one embodiment, the organopolysiloxane elastomer not containing a hydrophilic chain, or non-emulsifying silicone elastomer, can be defined as being an elastomeric crossbonded organopolysiloxane that may be obtained by crosslinking addition reaction of diorganopolysiloxane containing at least one hydrogen bonded to silicon and of diorganopolysiloxane containing ethylenically unsaturated groups bonded to silicon, especially in the presence of a platinum catalyst; or by dehydrogenation crosslinking coupling reaction between a diorganopolysiloxane with hydroxyl end groups and a diorganopolysiloxane containing at least one hydrogen bonded to silicon, especially in the presence of an organotin compound; or by crosslinking coupling reaction of a diorganopolysiloxane with hydroxyl end groups and of a hydrolysable organopolysilane; or by thermal crosslinking of organopolysiloxane, especially in the presence of an organoperoxide catalyst; or by crosslinking of organopolysiloxane via high-energy radiation such as gamma rays, ultraviolet rays or an electron beam.

Preferably, the elastomeric crossbonded organopolysiloxane is obtained by crosslinking addition reaction (A2) of diorganopolysiloxane containing at least two hydrogens each bonded to a silicon, and (B2) of diorganopolysiloxane containing at least two ethylenically unsaturated groups bonded to silicon, especially in the presence (C2) of a platinum catalyst, as described, for example, in patent application EP-A-295 886.

In particular, the organopolysiloxane may be obtained by reaction of dimethylpolysiloxane with dimethylvinylsiloxy end groups and of methylhydrogeno- polysiloxane with trimethylsiloxy end groups, in the presence of a platinum catalyst.

Compound (A2) is the base reagent for the formation of elastomeric organopolysiloxane, and the crosslinking is performed by addition reaction of compound (A2) with compound (B2) in the presence of the catalyst (C2).

Compound (A2) is advantageously a diorganopolysiloxane containing at least two lower (for example C₂-C₄) alkenyl groups; the lower alkenyl group may be chosen from vinyl, allyl and propenyl groups. These lower alkenyl groups may be located in any position on the organopolysiloxane molecule, but are preferably located at the ends of the organopolysiloxane molecule. The organopolysiloxane (A2) may have a branched-chain, linear-chain, cyclic or network structure, but the linear-chain structure is preferred. Compound (A2) may have a viscosity ranging from the liquid state to the gum state. Preferably, compound (A2) has a viscosity of at least 100 centistokes at 25°C.

The organopolysiloxanes (A2) may be chosen from methylvinylsiloxanes, methylvinylsiloxane-dimethylsiloxane copolymers, dimethylpolysiloxanes with dimethylvinylsiloxy end groups, dimethylsiloxane-methylphenylsiloxane copolymers with dimethylvinylsiloxy end groups, dimethylsiloxane-diphenylsiloxane-methylvinylsiloxane copolymers with dimethylvinylsiloxy end groups, dimethylsiloxane-methylvinylsiloxane copolymers with trimethylsiloxy end groups, dimethylsiloxane-methylphenylsiloxane-methyl- vinylsiloxane copolymers with trimethylsiloxy end groups, methyl(3,3,3-trifluoro- propyl)polysiloxanes with dimethylvinylsiloxy end groups, and dimethylsiloxane- methyl(3,3,3-trifluoropropyl)siloxane copolymers with dimethylvinylsiloxy end groups.

Compound (B2) is in particular an organopolysiloxane containing at least two hydrogens bonded to silicon in each molecule and is thus the crosslinking agent for compound (A2).

Advantageously, the sum of the number of ethylenic groups per molecule of compound (A2) and the number of hydrogen atoms bonded to silicon per molecule of compound (B2) is at least 4.

Compound (B2) may be in any molecular structure, especially of linear-chain or branched-chain structure, or cyclic structure.

Compound (B2) may have a viscosity at 25°C ranging from 1 to 50 000 centistokes, especially in order to have good miscibility with compound (A).

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

Compound (B2) may be chosen from methylhydrogenopolysiloxanes with trimethylsiloxy end groups, dimethylsiloxane-methylhydrogenosiloxane copolymers with trimethylsiloxy end groups, and dimethylsiloxane-methylhydrogenosiloxane cyclic copolymers.

Compound (C2) is the crosslinking reaction catalyst, and is especially chloroplatinic acid, chloroplatinic acid-olefin complexes, chloroplatinic acid-alkenylsiloxane complexes, chloroplatinic acid-diketone complexes, platinum black and platinum on a support.

The catalyst (C2) is preferably added in from 0.1 to 1000 parts by weight, better still from 1 to 100 parts by weight, as clean platinum metal per 1000 parts by weight of the total amount of compounds (A2) and (B2). Other organic groups may be bonded to silicon in the organopolysiloxanes (A2) and (B2) described above, for instance alkyl groups such as methyl, ethyl, propyl, butyl or octyl; substituted alkyl groups such as 2-phenylethyl, 2-phenylpropyl or 3,3,3-trifluoropropyl; aryl groups such as phenyl, tolyl or xylyl; substituted aryl groups such as phenylethyl; and substituted monovalent hydrocarbon-based groups such as an epoxy group, a carboxylate ester group or a mercapto group.

According to one preferred embodiment, the organopolysiloxane elastomer is mixed with at least one hydrocarbon-based oil and/or one silicone oil to form a gel. In these gels, the non-emulsifying organopolysiloxane elastomer is particularly in the form of non- spherical particles.

In a preferred embodiment, the silicone oil mixed with the organopolysiloxane elastomer to form a gel is a linear silicone oil (dimethylsiloxane) with molecular weight ranging from 1 to 350cst at 25°C, in particular 2 to lOOcst and preferably 2 to lOcst. The silicone oil viscosity might be measured according to ASTM D-445 norm.

As examples of organopolysiloxane elastomer mixed with linear silicone oil, used in the invention, mention may be made of the following references:

- DIMETHICONE/VINYL DIMETHICONE CROSSPOLYMER (and) DIMETHICONE, such as the commercial references « KSG-6 » and « KSG- 16 » sold by Shin Etsu;

- DIMETHICONE (and) DIMETHICONE CROSSPOLYMER, such as the comercial reference « DC9041 » sold by Dow Corning.

In a preferred embodiment, the composition comprises at least a non-emulsifying organopolysiloxane elastomer in a form of a gel wherein the organopolysiloxane elastomer is mixed with a linear silicone oil having a viscosity ranging from 1 to lOOcst at 25 °C, in particular 1 to lOcst at 25 °C, in particular the one having INCI Name DIMETHICONE/VINYL DIMETHICONE CROSSPOLYMER (and) DIMETHICONE, such as the commercial references « KSG-6 » and « KSG-16 » sold by Shin Etsu, preferably KSG- 16.

In another embodiment, the organopolysiloxane elastomer is an emulsifying elastomer. Emulsifying silicone elastomer is understood as meaning a silicone elastomer comprising at least one hydrophilic chain.

The emulsifying silicone elastomer can be chosen from amongst the elastomers of polyoxyalkylenated or polyglycerolated silicone.

The polyoxyalkylenated silicone elastomer is a crosslinked organopolysiloxane which can be obtained by crosslinking addition reaction of diorganopolysiloxane containing at least one hydrogen linked to the silicon and one polyoxyalkylene having at least two ethylenically unsaturated groups.

The polyoxyalkylenated elastomers are especially described in the patents US5236986, US5412004, US5837793 and US5811487, the content of which is incorporated by reference.

As a polyoxyalkylenated silicone elastomer, it is possible to use those marketed under the names "KSG-21", "KSG-20", "KSG-30", "KSG-31", KSG-32", "KSG-33", "KSG- 210", "KSG-310", "KSG-320", "KSG-330", "KSG-340", "X-226146" by Shin Etsu, and "DC9010", "DC9011" by Dow Corning.

The polyglycerolated silicone elastomer is a crosslinked organopolysiloxane elastomer which can be obtained by crosslinking addition reaction of diorganopolysiloxane containing at least one hydrogen linked to the silicon and of polyglycerolated compounds having ethylenically unsaturated groups, especially in the presence of platinum catalyst.

Such polyglycerolated elastomers are especially described in the patent application WO2004/024798.

As polyglycerolated silicone elastomers, it is possible to use those sold under the names "KSG-710", "KSG-810", "KSG-820", "KSG-830", "KSG-840" by Shin Etsu.

In a preferred embodiment, the organopolysiloxane elastomer is a non- emulsifying elastomer, i.e. an organopolysiloxane elastomers not containing a hydrophilic chain.

The non-emulsifying elastomers that may be used include those sold under the names KSG-6, KSG-15, KSG-16, KSG-18, KSG-31, KSG-32, KSG-33, KSG-41, KSG-42, KSG-43 and KSG-44 by the company Shin-Etsu, DC9040, DC9041, DC9509, DC9505 and DC9506 by the company Dow Corning, Gransil by the company Grant Industries, and SFE 839 by the company General Electric.

The non-emulsifying elastomer that may more particularly be used include those sold under the names KSG-6, KSG-15, KSG-16, KSG-18, KSG-41, KSG-42, KSG-43 and KSG-44 by the company Shin-Etsu, more particularly those sold under the names KSG-15 and KSG-16, and preferentially the one sold under the name KSG-16.

KSG-16 is a gel composed of 24% of dimethicone/vinyl dimethicone crosspolymer, and of 76% of dimethicone.

KSG15 is a gel composed of 6% of dimethicone/vinyl dimethicone crosspolymer, and of 94% of cyclodimethicone.

In a preferred embodiment, the organopolysiloxane elastomer has I CI name dimethicone/vinyl dimethicone crosspolymer.

The composition according to the invention may comprise such an organopolysiloxane elastomer, in particular an non-emulsifying organopolysiloxane elastomer, alone or as a mixture, in a content ranging from 0.01% to 0.9% by weight, preferably from 0.01% to 0.6% by weight, and even more preferably from 0.03% to 0.3% by weight, of active material relative to the total weight of the composition.

In a preferred embodiment, the compositions of the present invention comprise KSG-16 as non-emulsifying organopolysiloxane elastomer.

In a more preferred embodiment, the compositions of the invention comprise KSG-16 as non-emulsifying organopolysiloxane elastomer, in an amount ranging from 0.1% to 3%, preferably from 0.1% to 2% by weight, and even more preferably from 0.3% to 1% by weight, relative to the total weight of the composition.

According to the invention, the composition comprises at least one dimethicone copolyol.

Dimethicone copolyol

The dimethicone copolyol employed according to the invention is advantageously an oxypropylenated and/or oxyethylenated polydimethyl(methyl)siloxane. Use may be made, as dimethicone copolyol, of those corresponding to the following formula (I):

in which:

Ri, R₂ and R₃ represent, independently of one another, a C!-C₆ alkyl radical or a -(CH₂)x - (OCH₂CH2)_y - (OCH₂CH₂CH₂)_z - OR4 radical, at least one R_b R₂ or R₃ radical not being an alkyl radical; R₄ being a hydrogen, a C_!-C₃ alkyl radical or a C₂-C₄ acyl radical;

A is an integer ranging from 0 to 200;

B is an integer ranging from 0 to 50; provided that A and B are not equal to zero at the same time; x is an integer ranging from 1 to 6; y is an integer ranging from 1 to 30; z is an integer ranging from 0 to 5.

According to a preferred embodiment of the invention, in the compound of formula (I), R = R₃ = methyl radical, x is an integer ranging from 2 to 6 and y is an integer ranging from 4 to 30. R₄ is in particular a hydrogen.

Mention may be made, as examples of compounds of formula (I), of the compounds of formula (II):

(CH₃)₃SiO - [(CH₃)₂SiO]_A - (CH₃SiO)_B - Si(CH₃)₃

(Π)

(CH₂)₂-(OCH₂CH₂)_y-OH

in which A is an integer ranging from 20 to 105, B is an integer ranging from 2 to 10 and y is an integer ranging from 10 to 20. Mention may also be made, as examples of silicone compounds of formula (I), of the compounds of formula (III):

HO - (CH₂CH₂0)_y-(CH₂)₃ - [(CH₃)₂SiO]_A< - (CH₂)₃ - (OCH₂CH₂)_y - OH (III) in which A' and y are integers ranging from 10 to 20.

Use may be made, as dimethicone copolyol, of those sold under the names DC 5329, DC 7439-146, DC 2-5695 and Q4-3667 by Dow Corning; and KF-6013, KF-6015, KF-6016, KF-6017 and KF-6028 by Shin-Etsu.

In a preferred embodiment, the compositions of the invention comprise as dimethicone copolyol one of those sold under the names KF-6013, KF-6015, KF-6016, KF-6017 and KF-6028 by Shin-Etsu, and more particularly KF-6017. The INCI name of KF-6017 is PEG- 10 dimethicone.

The dimethicone copolyol can be present in the emulsion according to the invention in a content ranging from 0.1% to 2% by weight, preferably from 0.3% to 1.5% by weight, and preferentially from 0.3% to 1% by weight, with respect to the total weight of the emulsion.

In a more preferred embodiment, the compositions of the invention comprise PEG- 10 dimethicone as dimethicone copolyol, in an amount ranging from 0.1% to 2% by weight, preferably from 0.3% to 1.5% by weight, and preferentially from 0.3% to 1% by weight, with respect to the total weight of the emulsion.

In another preferred embodiment, the compositions of the invention comprise PEG- 10 dimethicone as dimethicone copolyol, and a mixture of dimethicone and dimethicone/vinyl dimethicone crosspolymer as organopolysiloxane elastomer not containing a hydrophilic chain.

The droplets in the compositions of the present invention have a size that ranges from 2 μηι to 50 μιτι, particularly from 2 μηι to 40 μιη, more particularly from 5 μπι to 30 μιη, and preferably from 5 μιη to 20 μηι. A composition according to the invention comprises, further to an organopolysiloxane elastomer and a dimethicone copolyol, at least one C₈-C₂₂ alkyl dimethicone copolyol.

CS-C22 alkyl dimethicone copolyol

As indicated previously, the composition of the invention comprises at least one C₈-C₂2 alkyl dimethicone copolyol.

This Cg-C₂₂ alkyl dimethicone copolyol of the invention is more particularly an oxypropylenated and/or oxyethylenated polymethyl (C₈-C₂₂) alkyl dimethyl methyl siloxane.

The C₈-C₂₂ alkyl dimethicone copolyol is advantageously a compound of the following formula (IV):

wherein:

- PE represents from groups (-C₂H₄0)_x-(C₃H₆0)_y-R, wherein R is chosen from a hydrogen atom and an alkyl radical comprising from 1 to 4 carbon atoms, x is an integer ranging from 0 to 100, and y is an integer ranging from 0 to 80, provided that x and y are not simultaneously equal to 0; and

Preferably, R is a hydrogen atom, m is an integer ranging from 1 to 10, n is an integer ranging from 10 to 100, o is an integer ranging from 1 to 30, p is 15, and q is 3. In a preferred embodiment^ the at least one C₈ C₂₂ alkyl dimethicone copolyol of the present invention is chosen from cetyl dimethicone copolyols such as the product marketed under the name Abil EM-90 by the company Goldschmidt.

The at least one C₈-C₂₂ alkyl dimethicone copolyol may be present, for example, in the emulsion disclosed herein in an amount ranging from 0.1% to 1.5% by weight, preferably from 0.1% to 1% by weight, and more particularly from 0.1% to 0.8% by weight, relative to the total weight of the composition.

In a preferred embodiment, the C8-C₂₂ alkyl dimethicone copolyol is a cetyl dimethicone copolyol, and more particularly the product marketed under the name Abil EM- 90 by the company Goldschmidt.

Abil EM-90 is a cetyl PEG/PPG- 10/1 dimethicone.

In a more preferred embodiment, the compositions of the invention comprise a cetyl PEG/PPG- 10/1 dimethicone as C₈-C₂₂ alkyl dimethicone copolyol, herein in an amount ranging from 0.1% to 1.5% by weight, preferably from 0.1% to 1% by weight, and more particularly from 0.1% to 0.8% by weight, relative to the total weight of the composition.

In another preferred embodiment, the compositions of the invention comprise cetyl PEG/PPG- 10/1 dimethicone as C₈-C₂₂ alkyl dimethicone copolyol and a mixture of dimethicone and dimethicone/vinyl dimethicone crosspolymer as organopolysiloxane elastomer not containing a hydrophilic chain.

In another preferred embodiment, the compositions of the invention comprise a mixture of dimethicone and dimethicone/vinyl dimethicone crosspolymer as organopolysiloxane elastomer not containing a hydrophilic chain, a PEG- 10 dimethicone as dimethicone copolyol, and a cetyl PEG/PPG- 10/1 dimethicone as C₈-C₂₂ alkyl dimethicone copolyol.

In another preferred embodiment, the compositions of the invention comprise from 0.03% to 0.3% by weight of dimethicone/vinyl dimethicone crosspolymer in active material, from 0.3% to l%by weight of PEG-10 dimethicone, and 0.1% to 0.8% by weight of cetyl PEG/PPG-10/1 dimethicone, relative to the total weight of the composition. Aqueous phase

The aqueous phase is present in an amount equal or above 40% by weight, in particular above 55% by weight, indeed even above 70% by weight and especially more than 74% by weight of the total weight of the composition.

This aqueous phase can comprise alcohol(s), in particular ethanol; polyehthylene glycols having from 6 to 80 ethylene oxide units; polyols, such as propylene glycol, isoprene glycol, butylene glycol, glycerol, maltitol, sorbitol, glycols, such as propylene glycol, butylene glycol, pentylene glycol, dipropylene glycol or diethylene glycol, glycol ethers, such as mono-, di- or tripropylene glycol or mono-, di- or triethylene glycol (C_j-C₄)alkyl ether, and their mixtures.

The aqueous phase comprises water. The water can be a floral water, such as cornflower water, and/or a mineral water, such as water from Vittel, water from Lucas or water from La Roche-Posay, and/or a thermal water. According to a particular embodiment of the invention, the amount of water in the aqueous phase is higher than the total amount of alcools/polyols in said aqueous phase.

In particular, the amount of polyols in the composition may represent from 0.5% to 40% by weight, preferably from 1% to 30% by weight, and more preferably from 5% to 20% by weight relative to the total weight of the compositioa

The aqueous phase can additionally comprise stabilizing agents, for example sodium chloride, magnesium dichloride, magnesium sulphate.

Preferably, the aqueous phase is present in the emulsion according to the invention in a content ranging from 40% to 85%, preferably ranging from 60% to 80% by weight, with respect to the total weight of the emulsion.

Fatty phase

Advantageously, the fatty phase comprises from 10% to 60% by weight, preferably ranging from 10% to 35% by weight and preferentially ranging from 20% to 30% by weight of volatile oil(s), with respect to the total weight of the composition.

Among volatile oils, hydrocarbon oils, silicone oils, fluorinated oils and their mixture may be mentioned. A volatile hydrocarbon oil Which can be used in the invention can be chosen from hydrocarbon oils having a flash point ranging from 40°C to 102°C, preferably ranging from 40°C to 55°C, and preferably ranging from 40°C to 50°C.

Mention may be made, as volatile hydrocarbon oil, of volatile hydrocarbon oils having from 8 to 16 carbon atoms and their mixtures, in particular branched Cg-C₁₆ alkanes, such as C₈-C₁₆ isoalkanes (also known as isoparaffins), isododecane, isodecane, isohexadecane and, for example, the oils sold under the Isopar or Permethyl commercial names, branched C₈-C₁₆ esters, such as isohexyl neopentanoate, and their mixtures. Preferably, the volatile hydrocarbon oil is chosen from volatile hydrocarbon oils having from 8 to 16 carbon atoms and their mixtures, in particular from isododecane, isodecane or isohexadecane, and is in particular isododecane. The volatile hydrocarbon-based oils may also be chosen from linear C8-C16 alkanes. Examples of linear C8-C16 alkanes that may be mentioned include n-nonadecane (C9), n-decane (CIO), n-undecane (CI 1), n-dodecane (CI 2), n- tridecane (CI 3), n-tetradecane (CI 4), n-pentadecane (CI 5) and n-hexadecane (CI 6), and mixtures thereof. According to one embodiment, a volatile linear alkane that is suitable for use in the invention may be chosen from n-nonadecane, n-undecane, n-dodecane and n- tridecane, and mixtures thereof. In particular, a volatile linear alkane may be used in the form of an n-undecane/n-tridecane mixture.

The volatile hydrocarbon oil can be present in a content ranging from 0.1% to 30% by weight, with respect to the total weight of the emulsion, preferably ranging from 0.5% to 20% by weight and preferentially ranging from 0.5% to 10% by weight. In particular, the composition comprises at least 0.5% by weight, with respect to the total weight of the emulsion, of volatile hydrocarbon oil.

The volatile silicone oil which can be used in the invention can be chosen from silicon oils having a flash point ranging from 40°C to 102°C, preferably having a flash point of greater than 55°C and less than or equal to 95 °C, and preferentially ranging from 65 °C to 95°C.

Mention may be made, as volatile silicone oil, of linear or cyclic silicone oils especially those with a viscosity < 8 centistokes (8 x 10^" m Is) and having from 2 to 7 silicon atoms, these silicones optionally comprising alkyl or alkoxy groups having from 1 to 10 carbon atoms. Mention may in particular be made, as examples of volatile silicone oil, of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane and their mixtures.

Mention may be made, as volatile fluorinated oil, of nonafluoroethoxybutane, nonafluoromethoxybutane, decafluoropentane, tetradecafluorohexane, dodecafluoropentane and their mixtures.

The volatile oil chosen from volatile silicone oils, volatile fluorinated oils and their mixtures can be present in a content ranging from 0.5% to 30% by weight, with respect to the total weight of the emulsion, preferably ranging from 0.5% to 20% by weight and preferentially ranging from 0.5% to 10% by weight, with respect to the total weight of the composition.

The fatty phase of the emulsion according to the invention can additionally comprise at least one non-volatile oil.

This non-volatile oil or one of its mixtures can be present in a content ranging from 0.5% to 50% by weight, with respect to the total weight of the emulsion, and preferably ranging from 3% to 30% by weight.

According to a particular embodiment of the invention, the composition may comprise a weight ratio of aqueous phase/oil phase ranging from 1 to 10.

Preferably, a composition may comprise a weight ratio of aqueous phase/oil phase ranging from 1 to 8.

More preferably, a composition may comprise a weight ratio of aqueous phase/oil phase ranging from 2 to 5.

The non-volatile oil can be chosen from carbon-comprising, hydrocarbon- comprising and/or silicone oils of mineral, animal, vegetable or synthetic origin, and their mixtures, insofar as they are compatible with the use envisaged.

Mention may be made of non-volatile hydrocarbon oils, such as liquid paraffin or liquid petrolatum, isoeicosane, mink, turtle or soybean oil, perhydrosqualene, sweet almond, calophyllum, palm, grape seed, sesame, corn, arara, rapeseed, sunflower, cottonseed, apricot, castor, avocado, jojoba, olive or cereal germ oil; esters of lanolic acid, oleic acid, lauric acid or stearic acid; fatty esters, such as isopropyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, diisopropyl adipate, isononyl isononanoate, 2-ethylhexyl palmitate, 2- hexyldexyl laurate, 2-octyldecyl palmitate, 2-octyldodecyl myristate or lactate, di(2- ethylhexyl) succinate, diisostearyl malate, glyceryl triisostearate or diglyceryl triisostearate; higher fatty acids, such as myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid or isostearic acid; or higher fatty alcohols, such as cetanol, stearyl alcohol or oleyl alcohol, linoleyl or linolenyl alcohol, isostearyl alcohol or octyldodecanol.

Mention may be made, as non-volatile silicone oil, of polydimethylsiloxanes (PDMSs), which are optionally phenylated, such as phenyl trimethicones, or optionally substituted by aliphatic and/or aromatic groups or by functional groups, such as hydroxyl, thiol and/or amine groups; polysiloxanes modified with fatty acids, fatty alcohols or polyoxyalkylenes, and their mixtures.

The fatty phase can also comprise at least one wax, at least one gum and/or at least one pasty fatty substance of vegetable, animal, mineral or synthetic origin, indeed even silicone origin, and their mixtures.

Mention may be made among waxes which are solid at ambient temperature and which are capable of being present in the composition according to the invention, of hydrocarbon waxes, such as beeswax, carnauba, candelilla, ouricury or Japan wax, cork fibre or sugarcane waxes, paraffin or lignite waxes, microcrystalline waxes, lanolin wax, montan wax, ozokerites, polyethylene waxes, the waxes obtained by the Fischer-Tropsch synthesis, hydrogenated oils, fatty esters and glycerides which are solid at 25°C. Use may also be made of silicone waxes, among which may be mentioned alkylpolymethylsiloxanes, alkoxypolymethylsiloxanes and/or polymethylsiloxane esters. The waxes can be provided in the form of stable dispersions of colloidal wax particles such that they can be prepared according to known methods, such as those of "Microemulsions Theory and Practice", edited by L.M. Prince, Academic Press (1977), pages 21-32. Mention may be made, as wax which is liquid at ambient temperature, of jojoba oil. The waxes can be present in a proportion of 0:1% to 5% by weight, with respect to the total weight of the emulsion, and preferably of 0.1% to 2% by weight.

The pasty fatty compounds can be defined using at least one of the following physicochemical properties:

- a viscosity of 0.1 to 40 Pa.s (1 to 400 poises), preferably 0.5 to 25 Pa.s, measured at 40°C with a Contraves TV rotary viscometer equipped with an MS-r3 or MS-r4 spindle at a frequency of 60 Hz,

- a melting point of 25-70°C, preferably 25-55°C.

The compositions of the invention can also comprise at least one alkyl, alkoxy or phenyl dimethicone, such as, for example, the product sold under the name of "Abil Wax 2440" by Goldschmidt.

The emulsion according to the invention can additionally comprise a thickening agent for the fatty phase. The thickening agent can be chosen from:

- organomodified clays, which are clays treated with compounds chosen in particular from quaternary amines or tertiary amines. Mention may be made, as organomodified clays, of organomodified bentonites, such as those sold under the name "Bentone 34" by Rheox, or organomodified hectorites, such as those sold under the name "Bentone 27" or "Bentone 38" by Rheox.

- hydrophobic pyrogenic silica. Such silicas are sold, for example, under the references "Aerosil R812^®" by Degussa and "Cab-O-Sil TS-530^®" by Cabot and under the references "Aerosil R972^®" and "Aerosil R974^®" by Degussa and "Cab-O-Sil TS-610^®" and "Cab-O-Sil TS-720^®" by Cabot.

The thickening agent for the fatty phase can be present in a content ranging from 0.1% to 5% by weight, with respect to the fatty phase, and better still from 0.2% to 3% by weight.

The fatty phase can represent from 5% to 50% by weight, preferably from 10% to 30% by weight, with respect to the total weight of the emulsion. In a preferred embodiment, the compositions of the invention comprise a thickening agent into the fatty phase, in particular a hydrophobic pyrogenic silica,

®

preferentially the silica sold under the name Aerosil R972 by Degussa, which is a silica dimethyl silylate.

Aerosil silicon dioxide, made from vaporized silicon tetrachloride oxidized in high-temperature flame with hydrogen and oxygen, treated by hydrophobation (Aerosil

®

R972 ), delivers several high important benefit to the formula and process. Indeed, it:

- gives thickening effect and thixotropy by dispersing to liquid materials;

- improves the possibility for pigment suspension;

- increases the stabilization of the big emulsion droplets;

- ensures water beads releasing effect without any impacts;

- speeds up emulsifying process and shortens batch time; and

- makes it easier to process.

In a known way, all the compositions of the invention can comprise one or more of the adjuvants usual in the cosmetic and dermatological fields: hydrophilic or lipophilic gelling and/or thickening agents; fillers; moisturising agents; emollients; hydrophilic or lipophilic active principles; agents for combating free radicals; sequestering agents; antioxidants; preservatives; basifying or acidifying agents; fragrances; film-forming agents; colouring materials; and their mixtures. The amounts of these various adjuvants are those conventionally used in foundations.

The compositions according to the invention can advantageously comprise more than 5% by weight, in particular more than 3% by weight, indeed more than 0.1% by weight, of a pulverulent phase. The latter is dispersed therein in a homogeneous and stabilized form. Within the meaning of the present invention, the term "pulverulent phase" covers all particles of pigment and/or filler type, as defined below.

The fillers can be present in the emulsion in a content ranging from 0.1% to 3% by weight, with respect to the total weight of the emulsion, preferably 0.1% to 1.5% by weight. Mention may in particular be ihade of talc, mica, silica, kaolin, starch, boron nitride, calcium carbonate, magnesium carbonate, basic magnesium carbonate, microcrystalline cellulose, powders formed of synthetic polymers, such as polyethylene, polyesters, polyamides, such as those sold under the "Nylon" tradename, or polytetrafluoroethylene ("Teflon"), and silicone powders.

In a preferred embodiment, the compositions of the invention comprise in the fatty phase a filler, more particularly a boron nitride.

Boron nitride, when added to the compositions of the invention, improves the evenness of the water droplets and the affinity to the skin. It also improves the smooth feeling on skin of the compositions and provides a cushion feeling between product and skin.

Concerning the coloring materials, they can be water-soluble coloring materials of vegetable, mineral or synthetic origin, pigments, pearlescent agents and mixtures thereof.

Advantageously, the pigments can be present in a hydrophobic coated form in the emulsion according to the invention. They can more particularly be pigments treated at the surface with a hydrophobic agent in order to render them compatible with the fatty phase of the emulsion, in particular in order for them to have good wettability with the oils of the fatty phase. Thus, these treated pigments are well dispersed in the fatty phase.

The pigments intended to be coated can be inorganic or organic pigments. Use may be made, as pigments, of metal oxides, such as iron oxides, in particular those which are yellow, red, brown or black in colour, titanium dioxides, cerium oxide, zirconium oxide or chromium oxide; manganese violet, ultramarine blue, Prussian blue, ferric blue, bismuth oxychloride, mother-of-pearl, mica covered with titanium oxide or with bismuth oxychloride, coloured pearlescent pigments, such as titanium oxide-coated mica with iron oxides, titanium oxide-coated 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, and their mixtures.

Use is preferably made of pigments formed of iron oxides or titanium oxide.

In a preferred embodiment, a composition according to the invention can comprise a pigment chosen among titanium dioxide (and) disodium stearoyl glutamate (and) aluminium hydroxide, iron dioxide (and) disodium stearoyl glutamate (and) aluminium hydroxide, and their mixture.

In a preferred embodiment, a composition of the invention can comprise up to 18% by weight of pigments, relative to the total weight of the composition.

The hydrophobic treating agent can be chosen from silicones, such as methicones, dimethicones or perfluoroalkylsilanes; fatty acids, such as stearic acid; metal soaps, such as aluminium dimyristate or the aluminium salt of hydrogenated tallow glutamate, perfluoroalkyl phosphates, perfluoroalkylsilanes, perfluoroalkylsilazanes, poly(hexafluoropropylene oxide)s, polyorganosiloxanes comprising perfluoroalkyl or perfluoropolyether groups, amino acids; N- acylated amino acids or their salts; lecithin, isopropyl triisostearyl titanate, and their mixtures.

The N-acylated amino acids 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. The salts of these compounds can be aluminium, magnesium, calcium, zirconium, zinc, sodium or potassium salts. The amino acid can, for example, be lysine, glutamic acid or alanine.

The term "alkyl" mentioned in the abovementioned compounds denotes in particular an alkyl group having from 1 to 30 carbon atoms, preferably having from 5 to 16 carbon atoms.

Hydrophobic treated pigments are described in particular in Application EP-A-1

086 683.

The hydrophobic coated pigments can be present in a composition in a content ranging from 0.5% to 20% by weight, with respect to the total weight of the composition, preferably ranging from 0.5% to 15% by weight, and preferentially ranging from 0.5% to 12% by weight.

Likewise, the compositions according to the invention can comprise active principles.

Mention may be made, as active principles which can be used in the composition of the invention, for example, of moisturising agents, such as protein hydrolysates, and polyols, for example glycerol, glycols, for example polyethylene glycols, and sugar derivatives; natural extracts;; vitamins, such as vitamin A (retinol), vitamin E (tocopherol), vitamin C (ascorbic acid), vitamin B5 (panthenol), vitamin B3 (niacinamide), the derivatives of these vitamins (in particular esters) and their mixtures; urea; caffeine; salicylic acid and its derivatives; alpha-hydroxy acids, such as lactic acid and glycolic acid, and their derivatives; retinoids, such as carotenoid and vitamin A derivatives; sunscreen; essential oils of mint, aloe vera or ginseng and their mixtures.

The sunscreens (or UV screening agents) can be chosen from organic screening agents, physical screening agents and their mixtures, and can more particularly be ethylhexyl methoxycinnammate. The composition of the invention can comprise, as chemical sunscreens which can be used in the composition of the invention, any UV-A or UV-B screening agent which can be used in the cosmetics field.

Of course, a person skilled in the art will take care to choose the optional adjuvants added to the composition according to the invention so that the advantageous properties intrinsically attached to the composition according to the invention are not, or not substantially, detrimentally affected by the envisaged addition.

The invention is illustrated in more details in the following examples.

Example 1

A water-in-silicone emulsion foundation conformed to the invention has been prepared from the following composition (the percentages are expressed in weight by weight of the total composition and the Active Material percentage (MA) is precised when required):

Boron nitride 0.50

Titanium dioxide (and) disodium stearoyl glutamate (and)

aluminium hydroxide 6%

Pigments

Iron dioxide (and) disodium stearoyl glutamate (and)

aluminium hydroxide

Water qsp 100

Butylene glycol 4.00

Sodium Chloride 2.60

Water

Maltitol (and) sorbitol 1.00

phase

Pentylene glycol 1.50

Glycerin 5.00

Ethanol 3.50

The composition was prepared as follows: In a pre-step:

The silica dimethyl silylate was mixed with isononyl isononanoate and passed in Tricylinder one time.

The pigments were dispersed in part of dimethicone and passed in Tricylinder three times.

The UV filter and ethyl menthane carboxamide were mixed and heated to 75 °C the cooled at room T°C.

Then the phases are mixed and homogenized as following:

In a main beaker, the surfactants, oil phase and pigments are mixed by Euro-star with a blender speed of 230-250rpm (45-60 sec.)

Then the aqueous phase is prepared to get a translucent solution.

The aqueous phase is then slowly added to the fatty phase (surfactants, oils and pigments) and mixed with blender speed 130-140rmp .

The blender speed is finally increased to 800rmp-900rmp (3 sec).

Results:

In terms of stability, it is good after keeping said emulsion for 12 weeks at 45°C. The emulsion was also tested on users. It provides expected properties enhanced in terms of freshness, particularly at room temperature (25°C).

Its aspect is smoothing and good.

Regarding the fresh and waterbeads releasing evaluation, it was performed as follows.

Step 1 : Pick up same quantity (around O.lg) of product, then using the pad of the middle finger and apply the product on inner forearm :

Step 2 : Spread the product simultaneously in order to have a good distribution of the product over same area.

Step 3 : Feel cooling/freshness to evaluation freshness.

Step 4: See water beads releasing effect (waterbeads size, beads releasing evenness, beads distribution in proper area)

It has been observed a significant difference between an area of the skin treated with this emulsion compared with an untreated area, said treated skin being better moisturized than said untreated skin.

Examples 2 to 4

The three following water-in-silicone emulsions conformed to the invention have been prepared and tested for there stability (the percentages are expressed in weight):

Ethylhexyl methoxycinnammate 4.0 4.0 4.0

Pigments 6.0 6.0 6.0

Water qsp 100 qsp 100 qsp 100

Butylene glycol 4.5 45 4.5

Sodium Chloride 0.5 0.5 0.5

Maltitol (and) sorbitol 1.0 1.0 1.0

Glycerin 2.0 2.0 2.0

Ethanol 3.0 3.0 3.0

The compositions were prepared as disclosed in example 1.

The stability of the said emulsions was measured after keeping of tested emulsions 12 weeks at 45°C.

All prepared emulsions have good stability, i.e. viscosity and appearance of bulk kept well but it is observed that the stability of those emulsions decreases with the diminution of the quantity of Cetyl PEG/PPG-10/1 dimethicone in said emulsions. Thus, the emulsion of Example 2 has a better stability than the emulsion of Example 3, itself having a better stability than the emulsion of Example 4, which had slightly water release on surface of the emulsion.

Example 5

The following water in silicone emulsion according to the invention was prepared as disclosed in Example 1.

A comparative formulation free from cetyl dimethicone copolyol was also prepared.

Isododecane 1.00 1.00

Isononyl isononanoate 6.40 6.40

Silica dimethyl silylate (Aerosil R972® sold by

1.00 1.00 Degussa)

Ethylhexyl methoxycinnammate 4.00 4.00

Ethyl menthane carboxamide 0.10 0.10

Boron nitride 0.50 0.50

Titanium dioxide (and) disodium stearoyl

5.32 5.32 glutamate (and) aluminium hydroxide

Pigments

Iron dioxide (and) disodium stearoyl glutamate

0.68 0.68 (and) aluminium hydroxide

Water qsp 100 qsp 100

Butylene glycol 4.00 4.00

Sodium Chloride 2.60 2.60

Water

Maltitol (and) sorbitol 1.00 1.00 phase

Pentylene glycol 1.50 1.50

Glycerin 5.00 5.00

Ethanol 3.50 3.50

The so-obtained emulsions were tested for their stability and their fresh and waterbeads releasing, by using the methods disclosed in Example 1.

The water droplets obtained with the claimed formulation were larger in size. When broken on the skin, they provide a significant fresh and light feeling for the user.

Claims

1. Fluid care and/or make-up cosmetic composition in the form of a water- in-silicone emulsion in particular dedicated to the skin comprising a fatty phase, an aqueous phase and

(i) at least one organopolysiloxane elastomer,

(ii) at least one dimethicone copolyol of formula (I)

in which:

Ri, R₂ and R₃ represent, independently of one another, a Ci-C₆ alkyl radical or a -(CH₂)_X - (OCH₂CH2)_y - (OCH₂CH₂CH₂)z - OR4 radical, at least one R_u R₂ or R₃ radical not being an alkyl radical; R4 being a hydrogen, a Ci-C₃ alkyl radical or a C₂-C₄ acyl radical;

A is an integer ranging from 0 to 200;

(iii) at least one Q-C₂₂ alkyl dimethicone copolyol of formula (IV)

(IV) wherein:

2. Composition according to claim 1, wherein said at least one organopolysiloxane elastomer is an elastomeric crossbonded organopolysiloxane that may be obtained by crosslinking addition reaction of diorganopolysiloxane containing at least one hydrogen bonded to silicon and of diorganopolysiloxane containing ethylenically unsaturated groups bonded to silicon, and is more particularly a mixture of dimethicone and dimethicone/vinyl dimethicone crosspolymer.

3. Composition according to claim 1 or 2, wherein the at least one organopolysiloxane elastomer is present in an amount ranging from 0.01% to 0.9% by weight, preferably from 0.01% to 0.6% by weight, and more particularly from 0.03% to 0.3% by weight, of active material relative to the total weight of the composition.

4. Composition according to anyone of the preceding claims, wherein Ri = R₃ = methyl radical, x is an integer ranging from 2 to 6 and y is an integer ranging from 4 to 30 in the dimethicone copolyol of formula (I).

5. Composition according to anyone of the preceding claims, wherein the at least one dimethicone copolyol is present in an amount ranging from 0.1% to 2% by weight, preferably from 0.3% to 1.5% by weight, and more particularly from 0.3% to 1% by weight, relative to the total weight of the composition.

6. Composition according to anyone of the preceding claims, wherein the at least one C₈-C₂₂ alkyl dimethicone copolyol is cetyl PEG/PPG- 10/1 dimethicone.

7. Composition according to anyone of the preceding claims, wherein the at least one C₈-C₂₂ alkyl dimethicone copolyol is present in an amount ranging from 0.1% to 1.5% by weight, preferably from 0.1% to 1% by weight, and more particularly from 0.1% to 0.8% by weight, relative to the total weight of the composition.

8. Composition according to anyone of the preceding claims, wherein said composition further comprises at least one thickening agent selected from silica dimethyl silylate, organomodified clays and hydrophobic pyrogenic silica, such as silica dimethyl silylate, and is more particularly silica dimethyl silylate.

9. Composition according to anyone of the preceding claims, wherein said composition further comprises at least one filler selected from talc, mica, silica, kaolin, starch, boron nitride, calcium carbonate, magnesium carbonate, basic magnesium carbonate, microcrystalline cellulose, powders formed of synthetic polymers, such as polyethylene, polyesters, polyamides and silicone powders, and is more particularly boron nitride.

10. Composition according to anyone of the preceding claims, wherein said composition further comprises at least one coloring material which can be water soluble coloring materials, pigments, pearlescent agents or mixtures thereof

11. Composition according to anyone of the preceding claims, wherein said composition further comprises up to 18% by weight of pigments, relative to the total weight of the composition.

12. Composition according to anyone of the preceding claims, wherein said fatty phase comprises at least one volatile oil and/or at least one non-volatile oil.

13. Composition according to anyone of the preceding claims, wherein said composition comprises from 0.03% to 0.3% by weight of dimethicone/vinyl dimethicone crosspolymer, from 0.3% to 1% by weight of PEG-10 dimethicone, and 0.1% to 0.8% by weight of cetyl PEG/PPG- 10/1 dimethicone, relative to the total weight of the composition.

14. Composition according to anyone of the preceding claims, wherein said composition is in the form of a foundation, a concealer or a cream, and more particularly is a foundation.

15. A cosmetic method for making up the skin, comprising the application, to the said skin, of a composition as defined in anyone of the preceding claims.