Cosmetic composition containing a rheological-modifying and stabilizing polymer blend

Patent metadata

Field	Value
Publication number	US-12226513-B2
Application number	US-202217852525-A
Country	US
Kind code	B2
Filing date	Jun 29, 2022
Priority date	Jun 29, 2021
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

The instant disclosure relates to a rheological-modifying and stabilizing polymer blend, cosmetic compositions comprising the polymer blend, and methods for stabilizing, for modifying viscosity, and for treating the skin using the polymer blend or using cosmetic compositions comprising the polymer blend. The rheological-modifying and stabilizing polymer blend comprises: (i) a carbomer; (ii) acrylates/C10-30 alkyl acrylate crosspolymer; and (iii) ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosspolymer.

First claim

What is claimed is:

1. A cosmetic composition comprising:
(a) a rheological-modifying and stabilizing polymer blend comprising:
(i) about 40 to 60 wt. % of a carbomer;
(ii) about 22 to 28 wt. % of an acrylates/C10-30 alkyl acrylate crosspolymer; and
(iii) about 22 to 28 wt. % of an ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosspolymer; and
(b) water;
wherein all weight percentages are based on the total weight of the polymer blend; and wherein (i) and ((ii)+(iii)) are in a weight ratio of 0.5:1 to 2:1 ((i):((ii)+(iii))).

2. The cosmetic composition of claim 1 , wherein (i) and ((ii)+(iii)) are in a weight ratio of 0.8:1 to 1.3:1 0.5:1 to 2:1 ((i):((ii)+(iii))) the weight ratio of (i) to ((ii)+(iii)) is 0.5:1 to 2:1.

3. The cosmetic composition of claim 1 comprising 0.1 to 10 wt. % of the polymer blend.

4. The cosmetic composition of claim 1 comprising:
(a)(i) 0.1 to 8 wt. % of the carbomer;
(a)(ii) 0.1 to 5 wt. % of the acrylates/C10-30 alkyl acrylate crosspolymer;
(a)(iii) 0.1 to 5 wt. % of the ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosspolymer; and
(b) 60 to 90 wt. % of the water;
wherein all weight percentages are based on the total weight of the cosmetic composition.

5. The composition of claim 4 , wherein (a)(i) and ((a)(ii)+(a)(iii)) are in a weight ratio of 0.8:1 to 1.3:1 0.5:1 to 2:1 ((a)(i):((a)(ii)+(a)(iii))).

6. The composition of claim 4 having a pH of 5 to 9.

7. The composition of claim 4 in the form of a gel.

8. The composition of claim 4 comprising:
(c) 1 to 40 wt. % of one or more fatty compounds; and
(d) 0.1 to 10 wt. % of one or more emulsifiers.

9. The composition of claim 8 , wherein the one or more fatty compounds are chosen from non-silicone fatty compounds.

10. The composition of claim 8 , wherein the one or more emulsifiers are chosen from glyceryl esters and derivatives, alkoxylated carboxylic acids, oxyalkylenated fatty acid esters of glycerol, oxyalkylenated fatty acid esters of sorbitan, oxyalkylenated fatty acid esters, oxyalkylenated fatty alkyl ethers, sugar esters, and mixtures thereof.

11. The composition of claim 8 in the form of an emulsion.

12. The composition of claim 4 , further comprising:
(e) 1 to 40 wt. % of one or more water-soluble solvents.

13. The composition of claim 12 , wherein the one or more water-soluble solvents are chosen from a glycol, glycerin, a C1-C4 alcohol, a polyhydric alcohol, and a mixture thereof.

14. The composition of claim 4 having a viscosity of 5,000 cP to about 100,000 cP at 25° C.

15. The composition of claim 4 , further comprising:
(f) one or more skin active agents.

16. The composition of claim 1 comprising:
(a)(i) 0.1 to 8 wt. % of the carbomer;
(a)(ii) 0.1 to 5 wt. % of the acrylates/C10-30 alkyl acrylate crosspolymer;
(a)(iii) 0.1 to 5 wt. % of the ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosspolymer; and
(b) 60 to 90 wt. % of the water;
wherein (a)(i) and ((a)(ii)+(a)(iii)) are in a weight ratio of 0.8:1 to 1.3:1 ((a)(i):((a)(ii)+(a)(iii))), and the composition comprises 0.1 to 10 wt. % of the polymer blend.

17. A method for treating skin comprising applying a cosmetic composition of claim 1 to the skin.

18. A rheological-modifying and stabilizing polymer blend comprising:
(i) about 40 to 60 wt. % of a carbomer;
(ii) about 22 to 28 wt. % of an acrylates/C10-30 alkyl acrylate crosspolymer; and
(iii) about 22 to 28 wt. % of an ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosspolymer;
wherein all weight percentages are based on the total weight of the rheological-modifying and stabilizing polymer blend; and wherein (i) and ((ii)+(iii)) are in a weight ratio of 0.5:1 to 2:1 ((i):((ii)+(iii))).

19. The composition of claim 1 , which is essentially free of crosslinked siloxane elastomers.

20. The composition of claim 1 , which is essentially free of silicones.

Assignees

• Oreal

Inventors

• Faig Jonathan
• Burkhard Nicole
• Chan David
• Halpern Chirch Susan

Classifications

• A61Q19/00 Primary

  Preparations for care of the skin · CPC title

• A61K2800/48

  Thickener, Thickening system · CPC title

• A61K8/44

  Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof · CPC title

• A61K8/4953

  containing pyrimidine ring derivatives, e.g. minoxidil · CPC title

• A61K8/368

  with carboxyl groups directly bound to carbon atoms of aromatic rings · CPC title