Composition comprising a superabsorbent polymer and a gemini surfactant

Patent metadata

Field	Value
Publication number	US-9364690-B2
Application number	US-201113580264-A
Country	US
Kind code	B2
Filing date	Feb 22, 2011
Priority date	Feb 24, 2010
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

A cosmetic composition in the form of an emulsion comprising at least one aqueous phase and at least one fatty phase, at least one superabsorbent polymer and at least one surfactant of formula (I):

Wherein: R 1 and R 3 denote, independently of each other, an alkyl radical containing from 1 to 25 carbon atoms; R 2 denotes a spacer formed from a linear or branched alkylene chain containing from 1 to 12 carbon atoms; X and Y denote, independently of each other, a group —(C 2 H 4 O) a —(C 3 H 6 O) b Z, in which Z denotes a hydrogen atom or a radical —CH 2 —COOM, —SO 3 M, —P(O)(OM) 2 , —C 2 H 4 —SO 3 M, —C 3 H 6 —SO 3 M or —CH 2 (CHOH) 4 CH 2 OH, in which M, M′ represent H or an alkali metal, alkaline-earth metal, ammonium or alkanolammonium ion, a ranges from 0 to 15, b ranges from 0 to 10, and the sum of a+b ranges from 1 to 25; and n ranges from 1 to 10 is provided.

First claim

The invention claimed is:

1. Cosmetic compositions in emulsion form comprising at least one aqueous phase and at least one fatty phase, at least one superabsorbent polymer and at least one surfactant of formula (I):

in which:
R1 and R3 denote, independently of each other, an alkyl radical containing from 1 to 25 carbon atoms;
R2 denotes a spacer formed from a linear or branched alkylene chain containing from 1 to 12 carbon atoms;
X and Y denote, independently of each other, a group —(C 2 H 4 O) a —(C 3 H 6 O) b Z in which
Z denotes a hydrogen atom or a radical —CH 2 —COOM, —SO 3 M, P(O)(OM) 2 , —C 2 H 4 —SO 3 M, —C 3 H 6 —SO 3 M or CH 2 (CHOH) 4 CH 2 OH, in which M, M′ represent H or an alkali metal, alkaline-earth metal, ammonium or alkanolammonium ion,
a ranges from 0 to 15,
b ranges from 0 to 10, and
the sum of a+b ranges from 1 to 25; and

n ranges from 1 to 10; wherein the surfactant of formula (I) is at least one gemini surfactant.

2. Composition according to claim 1 , wherein the superabsorbent polymer is in the form of particles having in dry form a mean size of less than or equal to 100 μm.

3. Composition according to claim 1 , wherein the superabsorbent polymer is in the form of particles having in dry form a mean size ranging from 10 to 100 μm.

4. Composition according to claim 1 , wherein the superabsorbent polymer has a water-absorbing capacity of from 50 to 1000 times its own weight.

5. Composition according to claim 1 , wherein the superabsorbent polymer is chosen from crosslinked sodium polyacrylates, starches grafted with an acrylic polymer, hydrolysed starches grafted with an acrylic polymer, and polymers based on starch, gum and cellulose derivative, and mixtures thereof.

6. Composition according to claim 1 , wherein the superabsorbent polymer is crosslinked.

7. Composition according to claim 1 , wherein the superabsorbent polymer is chosen from crosslinked acrylic homopolymers or copolymers.

8. Composition according to claim 1 , wherein the superabsorbent polymer is chosen from crosslinked sodium polyacrylates.

9. Composition according to claim 1 , wherein the superabsorbent polymer is in the form of spherical particles.

10. Composition according to claim 1 , wherein the superabsorbent polymer is present in an active material content ranging from 0.05% to 15% by weight relative to the total weight of the composition.

11. Composition according to claim 1 , wherein, for the gemini surfactant of formula (I), each of the groups R 1 —CO— and R 3 —CO— denotes a coconut fatty acid residue.

12. Composition according to claim 1 , wherein, for the gemini surfactant of formula (I), for each of the radicals X and Y, the sum of a and b has a mean value ranging from 10 to 20.

13. Composition according to claim 1 , wherein, for the gemini surfactant of formula (I), Y is a group —SO 3 M in which M is an alkali metal ion such as a sodium ion.

14. Composition according to claim 1 , wherein, for the gemini surfactant of formula (I), n is equal to 1.

15. Composition according to claim 1 , wherein the surfactant of formula (I) has the following structure:

16. Composition according to claim 1 , wherein the gemini surfactant is mixed with (a) an ester of a C 6 -C 22 fatty acid and of glycerol, (b) a diester of a C 6 -C 22 fatty acid and of citric acid and glycerol, and (c) a C 10 -C 30 fatty alcohol.

17. Composition according to claim 1 , wherein the gemini surfactant is present in a content ranging from 0.05% to 10% by weight relative to the total weight of the composition.

18. Cosmetic process for treating a keratin material, wherein a cosmetic composition as defined according to claim 1 is applied to the keratin material.

19. Composition according to claim 2 , wherein the superabsorbent polymer is in the form of particles having in dry form a mean size ranging from 10 to 100 μm.

20. Composition according to claim 2 , wherein the superabsorbent polymer has a water-absorbing capacity of from 50 to 1000 times its own weight.

21. Composition according to claim 1 , wherein the emulsion is an oil-in-water emulsion, wherein the superabsorbent polymer is present in an active material content ranging from 0.1% to 10% by weight relative to the total weight of the composition, and wherein the gemini surfactant is present in a content ranging from 0.1% to 5% by weight relative to the total weight of the composition.

22. Composition according to claim 21 , wherein the superabsorbent polymer is present in an active material content ranging from 0.1% to 5% by weight relative to the total weight of the composition, and wherein the gemini surfactant is present in a content ranging from 0.2% to 2% by weight relative to the total weight of the composition.

23. Composition according to claim 22 , wherein the superabsorbent polymer is present in an active material content ranging from 0.1% to 3% by weight relative to the total weight of the composition.

24. Composition according to claim 22 , wherein the superabsorbent polymer is present in an active material content ranging from 0.5% to 2% by weight relative to the total weight of the composition.

Assignees

• Lorant Raluca
• Fageon Laure
• Boutelet Karl
• Oreal

Inventors

• Lorant Raluca
• Fageon Laure
• Boutelet Karl

Classifications

• A61Q17/04

  Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations · CPC title

• A61K8/8147

  Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers · CPC title

• A61K8/062

  Oil-in-water emulsions · CPC title

• A61K2800/546

  Swellable particulate polymers · CPC title

• A61Q19/00 Primary

  Preparations for care of the skin · CPC title