Propellant-containing cosmetic preparations with starch particles and anionic polymer

Patent metadata

Field	Value
Publication number	US-10835472-B2
Application number	US-201816117455-A
Country	US
Kind code	B2
Filing date	Aug 30, 2018
Priority date	Sep 1, 2017
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

The present disclosure relates to cosmetic compositions for cleaning keratin fibres. An exemplary cosmetic composition includes, in relation to the total weight of the cosmetic composition, a) a particle comprising, in relation to the total weight of the particle, from about 65 to about 99% by weight of a native and/or physically modified starch, b) an anionic polymer comprising a structural unit of formula (I), a structural unit of formula (II), and a structural unit of formula (III):

in which R1, R2 and R4, independently of one another, stand for a hydrogen atom or a C1-C4 alkyl group, R3 stands for a branched or unbranched, saturated or unsaturated C1-C12 alkyl group, R5 stands for a branched or unbranched, saturated or unsaturated C6-C14 alkyl group, and A stands for oxygen, sulfur or an NH group, and c) at least one propellant.

First claim

The invention claimed is:

1. A cosmetic composition comprising,
a) particles comprising, in relation to the total weight of the particles, from 65 to 99% by weight of at least one native and/or physically modified starch, wherein the particles have a mean particle diameter of from 0.5 microns to 50 microns as measured by dynamic light scattering,
b) at least one anionic polymer comprising at least one structural unit of formula (I), at least one structural unit of formula (II), and at least one structural unit of formula (III):

in which
R 1 , R 2 and R 4 , independently of one another, stand for a hydrogen atom or a C 1 -C 4 alkyl group,
R 3 stands for a branched or unbranched, saturated or unsaturated C 1 -C 12 alkyl group,
A stands for oxygen, sulfur or an NH group, and wherein when A stand for oxygen, R 5 stands for a branched or unbranched, saturated unsaturated C 13 -C 14 alkyl group, and wherein when A stands for sulfur or an NH group, R 5 stands for a branched or unbranched, saturated or unsaturated C 6 -C 14 alkyl group, and
c) at least one propellant, wherein the cosmetic composition is free of chemically modified starch.

2. The cosmetic composition according to claim 1 , wherein the at least one native and/or physically modified starch is selected from native and/or physically modified rice starches.

3. The cosmetic composition according to claim 1 , wherein the particles a) comprise the at least one native and/or physically modified starch in a total amount of from 70% to 99% by weight in relation to the total weight of the particles.

4. The cosmetic composition according to claim 1 , wherein the cosmetic composition comprises the particles a) in a total amount of from 1.0% to 10% by weight in relation to the total weight of the cosmetic composition.

5. The cosmetic composition according to claim 1 , wherein, in the structural unit of formula (II), the group R 3 stands for a branched C 3 -C 6 alkyl group.

6. The cosmetic composition according to claim 1 , wherein, in the structural unit of formula (III), the group R 5 stands for a branched C 6 -C 10 alkyl group.

7. The cosmetic composition according to claim 1 , wherein the cosmetic composition comprises the at least one anionic polymer b) in a total amount of from 1.0% to 8.0% 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 at least one propellant c) in a total amount of from 80% to 96% by weight in relation to the total weight of the cosmetic composition.

9. A method for cleaning keratin fibres in which the cosmetic composition according to claim 1 is applied to keratin fibres.

10. The cosmetic composition according to claim 1 , wherein, in the structural unit of formula (II), the group R 3 stands for a *—CH 2 —CH(CH 3 ) 2 group.

11. The cosmetic composition according to claim 1 , wherein, in the structural unit of formula (III), the group R 5 stands for a *—C(CH 3 ) 2 —CH 2 —C(CH 3 ) 3 group.

12. The cosmetic composition according to claim 1 , wherein the at least one propellant c) is a propane/butane mixture, and wherein the cosmetic composition comprises the at least one propellant c) in a total amount of from 80% to 96% by weight in relation to the total weight of the cosmetic composition.

13. The cosmetic composition according to claim 1 , wherein the particles a) further comprise at least one cationic surfactant.

14. The cosmetic composition according to claim 13 , wherein the at least one cationic surfactant, in relation to the total weight of the particles a), is present in an amount of from 0.01% to 1.0% by weight.

15. The cosmetic composition according to claim 14 , wherein the at least one cationic surfactant is selected from the group of cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, distearyldimethylammonium chloride, lauryldimethylammonium chloride, lauryldimethylbenzylammonium chloride, and tricetylmethylammonium chloride.

16. The cosmetic composition according to claim 15 , wherein the at least one cationic surfactant is cetyltrimethylammonium chloride.

17. The cosmetic composition according to claim 16 , wherein the at least one cationic surfactant, in relation to the total weight of the particles a), is present in an amount of from 0.05% to 0.5% by weight.

18. The cosmetic composition according to claim 1 , wherein the mean particle diameter of the particles a) is from 5.0 microns to 20 microns as measured by dynamic light scattering.

19. A cosmetic composition consisting of, in relation to the total weight of the cosmetic composition,
a) particles present in a total amount of from 1.0% to 10% by weight and consisting of, in relation to the total weight of the particles,
from 65% to 99% by weight of at least one native and/or physically modified starch, wherein the particles have a mean particle diameter of from 0.5 microns to 50 microns as measured by dynamic light scattering, and
from 0.01% to 1.0% by weight of at least one cationic surfactant,

b) at least one anionic polymer that is present in a total amount of from 1.0% to 8.0% by weight and that comprising at least one structural unit of formula (I), at least one structural unit of formula (II), and at least one structural unit of formula (III):

in which
R 1 , R 2 and R 4 , independently of one another, stand for a hydrogen atom or a C 1 -C 4 alkyl group,
R 3 stands for a branched or unbranched, saturated or unsaturated C 1 -C 12 alkyl group,
A stands for oxygen, sulfur or an NH group, and wherein when A stand for oxygen, R 5 stands for a branched or unbranched, saturated unsaturated C 13 -C 14 alkyl group, and wherein when A stands for sulfur or an NH group, R 5 stands for a branched or unbranched, saturated or unsaturated C 6 -C 14 alkyl group,
c) at least one propellant present in a total amount of from 80% to 96% by weight,
d) water that is present in a total amount of from 0 to 2.0% by weight,
e) optionally at least one organic solvent that, if present, is in a total amount of from 3.0% to 8.0% by weight, and
f) optionally at least one nourishing substance selected from the group of protein hydrolysates, vitamins, provitamins, vitamin precursors, panthenol, caffeine, nicotinamide, sorbitol, plant extracts, monosaccharides, oligosaccharides, and lipids.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Knappe Thorsten
• Bethge Tim

Classifications

• A61K8/8158 Primary

  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

• A61K8/84

  obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds · CPC title

• A61Q5/02

  Preparations for cleaning the hair · CPC title

• A61K8/046

  Aerosols; Foams · CPC title