Cosmetic agent for temporarily reshaping keratinous fibres with film former

Patent metadata

Field	Value
Publication number	US-11234922-B2
Application number	US-201816220921-A
Country	US
Kind code	B2
Filing date	Dec 14, 2018
Priority date	Dec 15, 2017
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

The application describes a cosmetic agent for temporarily reshaping keratin fibres, in particular human hair, comprising a film former and a cosmetic carrier, wherein the film former comprises
at least one neutralization product of chitosan with at least one organic acid and at least one non-ionic propylene oxide-modified starch,

which cosmetic agent is also substantially free of a fully synthetic film former.

First claim

The invention claimed is:

1. A cosmetic composition for temporarily reshaping keratin fibers, comprising a film former and a cosmetic carrier, wherein the film former comprises:
from 0.05% by weight to 2% by weight of at least one neutralisation product of chitosan with at least one organic acid, wherein the ratio by weight of chitosan to the organic acid is from 1:1 to 1:10, and
from 0.5% by weight to 20% by weight of at least one non-ionic propylene oxide-modified starch,

wherein the cosmetic composition is substantially free from a fully synthetic film former.

2. The cosmetic composition according to claim 1 , wherein the film former consists substantially of:
at least one neutralisation product of chitosan with at least one organic acid, and
at least one non-ionic propylene oxide-modified starch.

3. The cosmetic composition according to claim 1 , wherein the at least one organic acid is formic acid, acetic acid, citric acid, lactic acid, pyrrolidone carboxylic acid, tartaric acid, glycolic acid, nicotinic acid, hydroxyisobutyric acid, hydroxyisovaleric acid, and mixtures thereof.

4. The cosmetic composition according to claim 1 , wherein the at least one organic acid is lactic acid.

5. The cosmetic composition according to claim 1 , wherein the ratio by weight of chitosan to the organic acid is between 1:1 and 1:6.

6. The cosmetic composition according to claim 1 , wherein the ratio by weight of chitosan to the organic acid is between 1:2 and 1:4.

7. The cosmetic composition according to claim 1 , wherein the cosmetic composition comprises the neutralisation product of chitosan with the organic acid in an amount of from 0.3% by weight to 0.7% by weight, in relation to the total weight of the cosmetic composition, and wherein the cosmetic composition comprises the non-ionic propylene oxide-modified starch in an amount of from 3% by weight to 6.5% by weight, in relation to the total weight of the cosmetic composition.

8. The cosmetic composition according to claim 1 , wherein the cosmetic composition comprises the neutralisation product of chitosan with the organic acid in an amount of from 0.1% by weight to 0.8% by weight, in relation to the total weight of the cosmetic composition.

9. The cosmetic composition according to claim 1 , wherein the cosmetic composition comprises the neutralisation product of chitosan with the organic acid in an amount of from 0.3% by weight to 0.7% by weight, in relation to the total weight of the cosmetic composition.

10. The cosmetic composition according to claim 1 , wherein the non-ionic propylene oxide-modified starch is a non-ionic propylene oxide-modified tapioca starch or a non-ionic propylene oxide-modified potato starch.

11. The cosmetic composition according to claim 1 , wherein the cosmetic composition comprises the neutralisation product of chitosan with the organic acid in an amount of from 0.1% by weight to 0.8% by weight, in relation to the total weight of the cosmetic composition, and wherein the cosmetic composition comprises the non-ionic propylene oxide-modified starch in an amount of from 1% by weight to 7% by weight, in relation to the total weight of the cosmetic composition.

12. The cosmetic composition according to claim 1 , wherein the cosmetic composition comprises the non-ionic propylene oxide-modified starch in an amount of from 3% by weight to 6.5% by weight, in relation to the total weight of the cosmetic composition.

13. The cosmetic composition according to claim 1 , wherein:
the film former consists substantially of at least one neutralisation product of chitosan with at least one organic acid, and at least one non-ionic propylene oxide-modified starch;
the at least one organic acid is lactic acid;
the non-ionic propylene oxide-modified starch is a non-ionic propylene oxide-modified tapioca starch or a non-ionic propylene oxide-modified potato starch;
the ratio by weight of chitosan to the organic acid is between 1:2 and 1:4;
the cosmetic composition comprises the neutralisation product of chitosan with the organic acid in an amount of from 0.3% by weight to 0.7% by weight, in relation to the total weight of the cosmetic composition; and
the cosmetic composition comprises the non-ionic propylene oxide-modified starch in an amount of from 3% by weight to 6.5% by weight, in relation to the total weight of the cosmetic composition.

14. The cosmetic composition according to claim 13 , wherein the non-ionic propylene oxide-modified starch is a non-ionic propylene oxide-modified tapioca starch.

15. The cosmetic composition according to claim 14 , wherein the cosmetic composition comprises from 0.01 to 1.5% by weight of one or more C3 to C12 alkane-1,2 diols.

16. The cosmetic composition according to claim 13 , wherein the cosmetic composition comprises from 0.01 to 1.5% by weight of one or more C3 to C12 alkane-1,2 diols.

17. The cosmetic composition according to claim 1 , wherein the cosmetic composition comprises from 0.01 to 1.5% by weight of one or more C3 to C12 alkane-1,2 diols.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Knappe Thorsten
• Meisel Marie
• Meunier Laura

Classifications

• A61Q5/06

  Preparations for styling the hair, e.g. by temporary shaping or colouring · CPC title

• A61K8/736 Primary

  Chitin; Chitosan; Derivatives thereof · CPC title

• A61K8/86

  Polyethers · CPC title

• A61K8/8158

  Homopolymers or copolymers of amides or imides, e.g. (meth) acrylamide; Compositions of derivatives of such polymers · CPC title

• A61K8/732 Primary

  Starch; Amylose; Amylopectin; Derivatives thereof · CPC title