Alkaline agent for lightening hair containing oxidants and special carboxylic acid esters

• US 10,251,826 B2
• Filed: 10/20/2017
• Issued: 04/09/2019
• Est. Priority Date: 11/24/2016
• Status: Active Grant

• Current Assignee: Henkel AG & Co KGaA
• Original Assignee: Henkel AG & Co KGaA
• Inventors: Gebert-Schwarzwaelder, Antje, Giesa, Helmut, Kroos, Astrid
• Primary Examiner(s): Rosenthal, Andrew S
• Application Number:
  US15/788,842
• Publication Number:
  US 20180140523A1
• Time in Patent Office: 536 Days
• CPC Class Codes: A61K 2800/31 Anhydrous
• CPC Class Codes: A61K 8/22 Peroxides; Oxygen; Ozone
• CPC Class Codes: A61K 8/23 Sulfur; Selenium; Tellurium; Compounds thereof
• CPC Class Codes: A61K 8/25 Silicon; Compounds thereof
• CPC Class Codes: A61K 8/37 Esters of carboxylic acids
• CPC Class Codes: A61Q 5/08 Preparations for bleaching the hair
• CPC Class Codes: A61Q 5/10 Preparations for permanently dyeing the hair

Abstract

The subject matter of the present disclosure includes agents for lightening keratin fibers, more particularly human hair, containing in a cosmetic carrier:

• • (a) at least one carboxylic acid ester of the formula (I)

• • (b) at least one peroxide compound, and
  • (c) water,
  • wherein the agent has a pH value in the range of from about 7.5 to about 12.5.

A further subject matter of the present disclosure includes a kit-of-parts in which the aforementioned components exist packed separately in two agents (A) and (B).

Claims

1. An agent for lightening keratin fibers, comprising a cosmetic carrier and:

(a) at least one carboxylic acid ester of the formula (I)

2. The agent according to claim 1, wherein the agent has a pH value in the range of from 7.5 to 12.5.

3. The agent according to claim 1, wherein R₂ denotes a hydrogen atom.

4. The agent according to claim 1, wherein R₃ denotes a hydrogen atom.

5. The agent according to claim 1, wherein R₄ denotes a methyl group, an ethyl group, a n-propyl group or a n-butyl group.

6. The agent according to claim 1, wherein the (a) at least one carboxylic acid ester of the formula (I) is selected from the group of methyl 2-methylprop-2-enoate, ethyl 2-methylprop-2-enoate, propyl 2-methylprop-2-enoate, phenyl 2-methylprop-2-enoate, methyl (E)-2-butenoate, ethyl (E)-2-butenoate, propyl (E)-2-butenoate, phenyl (E)-2-butenoate, methyl 3-methyl-2-butenoate, ethyl 3-methyl-2-butenoate, propyl 3-methyl-2-butenoate, phenyl 3-methyl-2-butenoate, methyl (E)-2-methyl-2-butenoate, ethyl (E)-2-methyl-2-butenoate, propyl (E)-2-methyl-2-butenoate, phenyl (E)-2-methyl-2-butenoate, methyl (Z)-2-methyl-2-butenoate, ethyl (Z)-2-methyl-2-butenoate, propyl (Z)-2-methyl-2-butenoate, phenyl (Z)-2-methyl-2-butenoate, methyl 2,3-dimethyl-2-butenoate, ethyl 2,3-dimethyl-2-butenoate, propyl 2,3-dimethyl-2-butenoate, phenyl 2,3-dimethyl-2-butenoate, methyl 2-methylbutanoate, ethyl 2-methylbutanoate, propyl 2-methylbutanoate, phenyl 2-methylbutanoate, methyl (E)-2-pentenoate, ethyl (E)-2-pentenoate, phenyl (E)-2-pentenoate, methyl (E)-3-methyl-2-pentenoate, ethyl (E)-3-methyl-2-pentenoate, phenyl (E)-3-methyl-2-pentenoate, methyl (E)-2-ethyl-2-butenoate, ethyl (E)-2-ethyl-2-butenoate, phenyl (E)-2-ethyl-2-butenoate, methyl (E)-2,3-dimethyl-2-pentenoate, ethyl (E)-2,3-dimethyl-2-pentenoate, phenyl (E)-2,3-dimethyl-2-pentenoate, methyl-2-ethyl-3-methyl-2-butenoate, ethyl-2-ethyl-3-methyl-2-butenoate and phenyl-2-ethyl-3-methyl-2-butenoate.

7. The agent according to claim 1, wherein—

relative to the total weight thereof—

the (a) one or more carboxylic acid esters of the formula (I) is present in a total quantity of from 0.1 to 3.5 wt. %.

8. The agent according to claim 1, wherein the agent comprises as the component (b) at least one peroxide compound from the group of hydrogen peroxide, ammonium peroxodisulfate, potassium persulfate and sodium peroxodisulfate.

9. The agent according to claim 1, wherein the agent comprises as the component (b)—

relative to the total weight of the agent—

(b1) hydrogen peroxide in a quantity of from 1.0 to 10.0 wt. %, and

(b2) one or more persulfates in a total quantity of from 10.0 to 25.0 wt. %.

10. The agent according to claim 1, wherein a weight ratio from (a) all carboxylic acid esters of the formula (I) contained in the agent to (b) all peroxide compounds contained in the agent (weight ratio (a)/(b)), stands at a value of from 1/20 to 1/100.

11. The agent according to claim 1, wherein the agent has a pH value in the range of from 8.0 to 10.5.

12. The agent according to claim 1, wherein the agent further comprises sodium silicate or sodium metasilicate as an alkalizing agent.

16. The agent according to claim 1, wherein the keratin fibers comprise human hair.

17. The agent according to claim 1, wherein R₁ denotes a methyl group or an ethyl group.

18. The agent according to claim 1, wherein—

relative to the total weight thereof—

the (a) one or more carboxylic acid esters of the formula (I) is present in a total quantity of from 0.2 to 2.4 wt. %.

19. The agent according to claim 1, wherein—

relative to the total weight thereof—

the (a) one or more carboxylic acid esters of the formula (I) is present in a total quantity of from 0.4 to 1.2 wt. %.

20. The agent according to claim 1, wherein the agent comprises as the component (b)—

relative to the total weight of the agent—

(b1) hydrogen peroxide in a quantity of from 3.0 to 8.0 wt. %, and

(b2) one or more persulfates in a total quantity of from 15.0 to 20.0 wt. %.

13. A kit-of-parts for lightening keratin fibers, packed separately from one another, and comprising:

a container (i) comprising an anhydrous cosmetic agent (A), and

a container (ii) comprising an anhydrous cosmetic agent (B), wherein

agent (A) comprises hydrogen peroxide, and

agent (B) comprises at least one persulfate and at least one carboxylic acid ester of the formula (I)

14. The kit-of-parts is according to claim 13, wherein agent (B)—

relative to the total weight of agent (B)—

comprises one or more fatty constituents in a total quantity of at least 20 wt. %, wherein the one or more fatty constituents are selected from the group of C₁₂-C₃₀ fatty alcohols, C₁₂-C₃₀ fatty acid triglycerides, C₁₂-C₃₀ fatty acid monoglycerides, C₁₂-C₃₀ fatty acid diglycerides and hydrocarbons.

15. The kit-of-parts is according to claim 14, wherein agent (B)—

relative to the total weight of agent (B)—

comprises one or more fatty constituents in a total quantity of at least 30 wt. %.