Use of a product for keratin fibers, containing at least one specific polymer combination for improving the color retention of oxidative hair colorations

Patent metadata

Field	Value
Publication number	US-9283167-B2
Application number	US-201514742826-A
Country	US
Kind code	B2
Filing date	Jun 18, 2015
Priority date	Dec 20, 2012
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

Methods and related agents. Said agents including, in a cosmetically acceptable carrier, a) at least one copolymer A having at least one structural unit (A1), at least one structural unit (A2), at least one structural unit (A3) and at least one structural unit (A4), wherein R1 represents an optionally heterofunctionalized alkyl group; R2 represents an optionally heterofunctionalized alkyl group which is different from R1; R3 independently represents an optionally heterofunctionalized alkyl group different from R1 and R2, and b) at least one copolymer B, which is different from copolymer A and has at least one structural unit (B1), wherein R4 represents an optionally heterofunctionalized alkyl group, improve the color retention of oxidatively dyed keratin-containing fibers.

First claim

What is claimed is:

1. Method for treating keratin-containing fibers, in particular human hair, comprising the following steps:
i) carrying out oxidative dyeing of the keratin-containing fiber,
ii) applying an agent to the oxidatively dyed keratin-containing fiber, said agent including a cosmetically acceptable carrier and
a) at least one copolymer A comprising at least one structural unit (A1), at least one structural unit (A2), at least one structural unit (A3), and at least one structural unit (A4)

wherein
R1 stands for an optionally heterofunctionalized alkyl radical;
R2 stands for an optionally heterofunctionalized alkyl radical which is different from R1;
R3 independently stands for an optionally heterofunctionalized alkyl radical which is different from R1 and R2;
b) at least one copolymer B, which is different from copolymer A, having at least one structural unit (B1)

wherein R4 stands for an optionally heterofunctionalized alkyl radical.

2. The method of claim 1 , improves the color retention of the oxidatively dyed keratin-containing fibers.

3. The method of claim 1 , wherein R1 in formula (A1) stands for a —CH(CH 3 )CH 2 —(OCH(CH 3 )CH 2 ) x (O[CH 2 ] 2 ) y OCH 3 radical, in which x and y independently have a value between 1 and 100.

4. The method of claim 1 , wherein the radical R2 in the structural unit (A2) stands for a radical containing an amino group.

5. The method of claim 4 , wherein the amino group is a tertiary amine.

6. The method of claim 1 , wherein at least one of the radicals R3 of the structural unit (A3) stands for an alkyl radical.

7. The method of claim 6 , wherein the alkyl radical is a C1 to C4 alkyl radical.

8. The method of claim 1 , wherein the radical R4 in the structural unit (B1) stands for an alkyl radical.

9. The method of claim 8 , wherein the alkyl radical is a C1 to C4 alkyl radical.

10. The method of claim 8 , wherein the alkyl radical is —CH 3 .

11. The method of claim 1 , wherein the weight fraction of copolymer A relative to the total weight of cosmetic agents according to the invention is 0.05 to 10% by weight.

12. The method of claim 1 , wherein the weight fraction of copolymer A relative to total weight of cosmetic agents according to the invention is 0.2 to 5.0% by weight.

13. The method of claim 1 , wherein the weight fraction of copolymer B relative to the total weight of cosmetic agents according to the invention is 0.05 to 10% by weight.

14. The method of claim 1 , wherein the weight fraction of copolymer B relative to the total weight of cosmetic agents according to the invention is 0.2 to 5.0% by weight.

15. The method of claim 1 , wherein the weight ratio of copolymer A to copolymer B is 20:1 to 1:20.

16. The method of claim 1 , wherein the weight ratio of copolymer A to copolymer B is 5:1 to 1:5.

17. The method of claim 1 , wherein the total quantity of the mixture of copolymer A and copolymer B is 0.1 to 10.0%, based on the total weight of the agent.

18. The method of claim 1 , wherein the total quantity of the mixture of copolymer A and copolymer B is 1.0 to 5.0% by weight, based on the total weight of the agent.

19. The method of claim 1 , wherein the agent has a pH of 6.8 to 9.5.

20. The method of claim 1 , wherein the agent is present as a cream, gel, pump foam, or aerosol foam.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Metten Diane
• Richters Bernd
• Scheffler Rene

Classifications

• A61K2800/594

  Mixtures of polymers · CPC title

• A61Q5/004

  Preparations used to protect coloured hair · CPC title

• A61K8/8164 Primary

  Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers, e.g. poly (methyl vinyl ether-co-maleic anhydride) · CPC title

• A61Q5/10

  Preparations for permanently dyeing the hair · CPC title

• A61K2800/4324

  in preparations for permanently dyeing the hair · CPC title