Composition comprising an alkoxysilane, a fatty ester and a silicone, and cosmetic use thereof

Composition according to the preceding claim, characterized in that the alkoxysilane is chosen from the following compounds:

• compounds of formula (I):
• in which:
• R4 represents a halogen or a group ORa or R1a;
• R5 represents a halogen or a group ORb or R2a;
• R6 represents a halogen or a group ORc or R3a;
• R1 and R2 represent, independently of each other, a hydrogen atom or a saturated or unsaturated, linear or branched hydrocarbon-based group, preferably R1 or R2 necessarily denoting a hydrogen atom,
• R3, Ra, Rb, Rc, R1a, R2a and R3a represent, independently of each other, a saturated or unsaturated, linear or branched hydrocarbon-based group, optionally bearing additional chemical groups such as acid or amine groups, Ra, Rb and Rc also possibly denoting hydrogen, and at least two of the groups R4, R5 and R6 being other than groups R1a, R2a and R3a, and preferably at least two of the groups Ra, Rb and Rc being other than hydrogen.
• compounds of formula (II):
• (R21O)x(R22)ySi—(B)p-[NR23—(Ba)pa]q-[NR23a—(Bb)pb]qa-Si(R22a)ya(OR21a)xa
• in which:
• R21, R22, R21a and R22a represent, independently of each other, a saturated or unsaturated, linear or branched hydrocarbon-based chain, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more groups chosen from ether, ester, amine, amide, carboxyl, hydroxyl and carbonyl groups,
• R23 and R23a each independently represent a hydrogen atom or a saturated or unsaturated, linear or branched hydrocarbon-based chain, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more ether, C1-C20 alcohol ester, amine, carboxyl, C6-C30 aryl, hydroxyl or carbonyl groups, or a heterocyclic or non-heterocyclic aromatic ring, optionally substituted with one or more C1-C20 alcohol ester, amine, amide, carboxyl, hydroxyl, carbonyl or acyl groups, R23 and R23a preferably representing a hydrogen atom,
• x is an integer ranging from 1 to 3, y=3-x, xa is an integer ranging from 1 to 3, ya=3-xa, p=0 or 1, pa=0 or 1, pb=0 or 1, q=0 or 1, qa=0 or 1, it being understood that at least q or qa is other than zero,
• B, Ba and Bb each independently represent a linear or branched divalent C1-C20 alkylene radical.
• compounds of formula (III):
• in which:
• R24 and R25 represent, independently of each other, a saturated or unsaturated, linear or branched hydrocarbon-based chain, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more groups chosen from ether, ester, amine, amide, carboxyl, hydroxyl and carbonyl groups,
• e=2 or 3;
• f=3-e;
• g=0 or 1;
• j=0 or 1;
• E and Ea each independently represent a linear or branched divalent C1-C20 alkylene radical,
• R26 and R27 each independently represent a hydrogen atom or a saturated or unsaturated, linear or branched hydrocarbon-based chain, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more ether, C1-C20 alcohol ester, amine, carboxyl, C6-C30 aryl, hydroxyl or carbonyl groups, or a heterocyclic or non-heterocyclic aromatic ring, optionally substituted with one or more C1-C20 alcohol ester, amine, amide, carboxyl, hydroxyl, carbonyl or acyl groups, R26 or R27 preferably representing a hydrogen atom,
• i is an integer ranging from 0 to 4,
• h is 0 or 1,
• the group(s) R28 each independently represent a hydrogen atom or a saturated or unsaturated, linear or branched, preferably C1-C10 hydrocarbon-based chain, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more ether, C1-C20 alcohol ester, amine, carboxyl, C6-C30 aryl, hydroxyl or carbonyl groups, or a heterocyclic or non-heterocyclic aromatic ring, optionally substituted with one or more C1-C20 alcohol ester, amine, amide, carboxyl, hydroxyl, carbonyl or acyl groups.

Composition according to either of the preceding claims, characterized in that the alkoxysilane is of formula (I) below:

• in which:
• R1 and R2, independently of each other, are chosen from hydrogen and ethyl, propyl and aminoethyl groups;
• R3 is chosen from ethyl, propyl and methylphenethyl groups;
• R4, R5 and R6, independently of each other, are chosen from methyl, methoxy and ethoxy groups.

Composition according to any one of the preceding claims, characterized in that the fatty esters are chosen from:

• esters of saturated, linear or branched C1-C30 monoalcohols, with C10-C30 monofunctional fatty acids, the latter possibly being linear or branched, and saturated or unsaturated;
• esters of linear or branched C3-C8 monoalcohols, with C10-C30 difunctional fatty acids, the latter possibly being linear or branched, and saturated or unsaturated;
• esters and diesters of sugars and of C10-C30 fatty acids;
• mixtures thereof.