pH-sensitive compound, use, composition and treatment process using same

Patent metadata

Field	Value
Publication number	US-9770398-B2
Application number	US-201214350007-A
Country	US
Kind code	B2
Filing date	Oct 5, 2012
Priority date	Oct 6, 2011
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

The subject of the present invention is a compound of formula (I) below, the addition salts thereof, the dimer thereof and also the organic or inorganic acid salts thereof, the optical isomers thereof, the geometric isomers thereof, and the solvates thereof such as hydrates: (I) These compounds are sensitive to pH and of use for the treatment of keratin fibers, such as human keratin fibers and in particular the hair.

First claim

The invention claimed is:

1. A cosmetic composition comprising, in an aqueous or aqueous-alcoholic cosmetically acceptable medium, one or more compounds chosen from the following compounds:

wherein the cosmetic composition modulates a hydrophobic nature of human keratin fibres and wherein the composition comprises one or more inorganic or organic thickeners.

2. The composition according to claim 1 , characterized in that the total concentration of the said compounds ranges from 0.05 to 20% by weight relative to the total weight of the composition.

3. A process for treating keratin fibres comprising a step of applying the composition as defined in claim 1 or 2 to said fibres.

4. The process according to claim 3 , characterized in that the composition contains one or more reducing agents.

5. The process according to claim 3 or 4 , further comprising an additional step of applying an oxidizing agent, after the step of applying the composition.

6. A method of treating human keratin fibers, comprising applying the composition of claim 1 to a human keratin fiber, wherein the human keratin fiber is hair.

7. The method of claim 4 , wherein applying the composition of claim 1 to hair modulates the hydrophobic nature of hair.

8. A multi-compartment device or kit, comprising:
a first compartment comprising a composition as defined in claim 1 or 2 ,
a second compartment comprising an oxidizing composition.

9. The cosmetic composition of claim 1 , wherein the human keratin fibre is hair.

Assignees

• Oreal

Inventors

• Greaves Andrew
• Luengo Gustavo

Classifications

• A61K8/46 Primary

  containing sulfur (A61K8/44 takes precedence) · CPC title

• C07C323/60

  with the carbon atom of at least one of the carboxyl groups bound to nitrogen atoms · CPC title

• A61Q5/002

  Preparations for repairing the hair, e.g. hair cure · CPC title

• C07C323/25

  the carbon skeleton being acyclic and saturated · CPC title

• A61Q5/00

  Preparations for care of the hair · CPC title