Cosmetic composition comprising mattifying fillers and a silane

Patent metadata

Field	Value
Publication number	US-9717670-B2
Application number	US-201314395883-A
Country	US
Kind code	B2
Filing date	Apr 24, 2013
Priority date	Apr 26, 2012
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

The present invention relates to a composition comprising an aqueous phase, at least one mattifying filler and at least one silane corresponding to formula (I) below and/or oligomers thereof: R 1 Si(OR 2 ) z (R3) x (OH) y (I) in which: •Ri is a linear or branched, saturated or unsaturated C1-C22 hydrocarbon-based chain, which may be substituted with an amine group NH2 or NHR (R=C1-C20 and especially C1-C6 alkyl, C3-C40 cycloalkyl or C6-C30 aromatic); or with a hydroxyl group, a thiol group, an aryl group (more particularly benzyl), which is substituted or unsubstituted; Ri possibly being interrupted with a heteroatom (O, S or NH) or a carbonyl group (CO), •R2 and R3, which may be identical or different, represent a linear or branched alkyl group comprising from 1 to 6 carbon atoms, •y denotes an integer ranging from 0 to 3, and •z denotes an integer ranging from 0 to 3, and •x denotes an integer ranging from 0 to 2, •with z+x+y=3, The invention also relates to a cosmetic process for making up and/or caring for keratin materials comprising a step of applying a composition according to one of the preceding claims to the said materials.

First claim

The invention claimed is:

1. A cosmetic process for treating skin, wherein scalp is excluded from the skin to be treated which comprises applying to the skin a cosmetic composition comprising:
an aqueous phase,
at least one mattifying filler, which are chosen from hydrophobic silica aerogel particles, and
at least one silane corresponding to formula (I) below and/or oligomer thereof:
R 1 Si(OR 2 ) z (R 3 ) x (OH) y   (I)

in which:
R 1 represents an alkyl group comprising from 7 to 18 carbon atoms,
R 2 represents lower alkyl group comprising from 1 to 4 carbon atoms
R 3 represents lower alkyl group comprising from 1 to 4 carbon atoms
z is equal to 3
y and x are equal to 0

the at least one silane of formula (I) and/or oligomer thereof is present from 2% to 20% by weight relative to the total weight of the composition.

2. The cosmetic process according to claim 1 , wherein the cosmetic composition comprises at least octyltriethoxysilane.

3. The cosmetic process according to claim 1 , wherein the silane(s) of formula (I) and/or oligomers thereof are present in a content ranging from 5% to 15% by weight relative to the total weight of the composition.

4. The cosmetic process according to claim 1 , wherein the at least one mattifying filler are chosen from hydrophobic aerogel particles with a specific surface area per unit of mass (SM) ranging from 200 to 1500 m 2 /g, and a size expressed as the volume mean diameter (D[0.5]) ranging from 1 to 30 μm and/or an oil-absorbing capacity measured at the Wet Point ranging from 5 to 18 ml/g of particles.

5. The cosmetic process according claim 1 , wherein the at least one mattifying filler represent from 0.05% to 30% by weight relative to the total weight of the composition.

6. The cosmetic process according to claim 1 , wherein R 2 represents an ethyl group, and R 3 represents methyl or ethyl groups.

7. The cosmetic process according to claim 1 , wherein R 1 represents an octyl group.

8. The cosmetic process according to claim 1 , wherein the cosmetic composition comprises at least one silane selected from the group consisting of octyltriethoxysilane, dodecyltriethoxysilane, octadecyltriethoxysilane and hexadecyltriethoxysilane.

Assignees

• Oreal

Inventors

• Lorant Raluca
• Guillier Nathalie
• Chabrillangeas Mathieu

Classifications

• A61K8/585 Primary

  Organosilicon compounds · CPC title

• A61Q19/00

  Preparations for care of the skin · CPC title

• A61Q19/008

  Preparations for oily skin · CPC title

• A61K8/25

  Silicon; Compounds thereof · CPC title

• A61K2800/412

  Microsized, i.e. having sizes between 0.1 and 100 microns · CPC title