Cosmetic composition comprising an oil, hydrophobic silica aerogel particles and a semi-crystalline polymer

Patent metadata

Field	Value
Publication number	US-10028898-B2
Application number	US-201314404980-A
Country	US
Kind code	B2
Filing date	Jun 21, 2013
Priority date	Jun 21, 2012
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

The present invention relates to a liquid cosmetic composition, preferably for making up and/or caring for the skin and/or the lips, comprising, in a physiologically acceptable medium, at least one fatty phase comprising: —at least one oil, which is preferably non-volatile, —at least hydrophobic silica aerogel particles, —at least one semi-crystalline polymer, —the said composition comprising less than 5% by weight of water relative to the total weight of the composition, and preferably being anhydrous.

First claim

The invention claimed is:

1. A liquid cosmetic composition, comprising:
in a physiologically acceptable medium, a fatty phase comprising:
an oil,
hydrophobic silica aerogel particles in an amount of 0.2% to 4% by weight relative to the total weight of the composition, wherein the hydrophobic silica aerogel particles have a specific surface area per unit of mass S M ranging from 500 to 1500 m 2 /g, and a size expressed as a volume-mean diameter D[0.5] ranging from 1 to 1500 μm, and
a semi-crystalline polymer, and
less than 5% by weight of water relative to a total weight of the composition.

2. The composition according to claim 1 , wherein the hydrophobic aerogel particles have an oil absorption capacity, measured at a wet point, ranging from 5 to 18 ml/g.

3. The composition according to claim 1 , wherein the hydrophobic aerogel particles have a tapped density ranging from 0.02 g/cm 3 to 0.10 g/cm 3 .

4. The composition according to claim 1 , wherein the hydrophobic silica aerogel particles are surface-modified with trimethylsilyl groups.

5. The composition according to claim 1 , wherein the oil is a non-volatile oil, which is optionally selected from the group consisting of:
a hydrocarbon-based oil,
a silicone oil,
a fluoro oil, and
any mixture thereof.

6. The composition according to claim 1 , wherein a total content of the oil ranges from 15% to 90% by weight relative to the total weight of the composition.

7. The composition according to claim 1 , wherein the semi-crystalline polymer is selected from the group consisting of:
a semi-crystalline polymer bearing crystallizable side chains;
a polymer bearing in the backbone at least one crystallizable block,
a polycondensate of aliphatic or aromatic or aliphatic/aromatic polyester type;
a copolymer of ethylene and propylene prepared by metallocene catalysis, and
any mixture thereof.

8. The composition according to claim 1 , wherein the semi-crystalline polymer is a semi-crystalline polymer bearing crystallizable side chains of formula:

where:
M represents an atom of the polymer backbone,
C represents a crystallizable group,
S represents a spacer, and
the crystallizable chains “—S—C” are optionally fluorinated or perfluorinated hydrocarbon-based aliphatic or aromatic chains, and comprise saturated or unsaturated C 12 -C 40 .

9. The composition according to claim 1 , wherein the semi-crystalline polymer is a semi-crystalline homopolymer or copolymer bearing at least one crystallizable chain resulting from polymerization of at least one monomer selected from the group consisting of: a saturated alkyl (meth)acrylate with a C 14 -C 24 alkyl group, a perfluoroalkyl (meth)acrylate with a C 11 -C 15 perfluoroalkyl group, a N-alkyl(meth)acrylamide with a C 14 -C 24 alkyl group with or without a fluorine atom, a vinyl ester bearing alkyl or perfluoro(alkyl) chains with a C 14 -C 24 alkyl group and at least 6 fluorine atoms per perfluoroalkyl chain, a vinyl ether bearing alkyl or perfluoro(alkyl) chains with a C 14 -C 24 alkyl group and at least 6 fluorine atoms per perfluoroalkyl chain, and a C 14 to C 24 .

10. The composition according to claim 1 , wherein
the semi-crystalline polymer is a homopolymer or a copolymer resulting from polymerization of at least one saturated C 10 to C 30 alkyl (meth)acrylate monomer bearing a crystallizable side chain, and
the at least one saturated C 10 to C 30 alkyl (meth)acrylate is optionally represented by formula:

where R 1 is H or CH 3 , R is a C 10 to C 30 alkyl group, and X is O.

11. The composition according to claim 1 , wherein the semi-crystalline polymer is derived from polymerization of at least one saturated C 10 to C 30 alkyl (meth)acrylate monomer bearing a crystallizable chain.

12. The composition according to claim 1 , wherein the semi-crystalline polymer is present in a total content ranging from 0.1% to 30% of the total weight of the composition.

13. The composition according to claim 1 , further comprising: a wax.

14. The composition according to claim 1 , which is free of nanometric-sized silica.

15. The composition according to claim 1 , which is free of hydrophobic-treated fumed silica that is a Silica Dimethyl Silylate.

16. The composition according to claim 1 , further comprising: at least one compound selected from the group consisting of a dyestuff, a wax, a hydrocarbon-based resin, a dextrin ester, a pasty fatty substance, a film-forming polymer, a hydrocarbon-based block copolymer, a block ethylenic copolymer, an organogelling agent, a hydrocarbon-based polyamide, a silicone polyamide, a polyurethane, an additional filler, an active agent, an antioxidant, a sweetener, and a preserving basifying or acidifying agent.

17. The composition according to claim 1 , further comprising: at least one dyestuff selected from the group consisting of a pigment and a nacre.

18. The composition according to claim 1 , which is in liquid form at room temperature.

19. The composition according to claim 1 , which is suitable for a product for making up skin and/or lips.

20. A process for making up and/or caring for skin and/or lips, the process comprising: applying the composition according to claim 1 to the skin and/or the lips.

Assignees

• Oreal

Inventors

• Arditty Stephane
• Auguste Frederic

Classifications

• A61Q1/04

  for lips · CPC title

• A61K8/0279

  Porous; Hollow · CPC title

• A61K8/8152

  Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers · CPC title

• A61K2800/31

  Anhydrous · CPC title

• A61K8/891

  saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone · CPC title