Skin care composition

Patent metadata

Field	Value
Publication number	US-10709652-B2
Application number	US-201716309662-A
Country	US
Kind code	B2
Filing date	May 16, 2017
Priority date	Jun 21, 2016
Publication date	Jul 14, 2020
Grant date	Jul 14, 2020

Abstract

Disclosed is a skin care composition comprising starch, benzotriazole derivative sunscreen, whitening pigment and a cosmetically acceptable carrier, wherein the starch is present in amount of less than 2.2% by weight of the composition, and the benzotriazole derivative sunscreen is present in amount of less than 0.22% by weight of the composition.

First claim

The invention claimed is:

1. A skin care composition comprising starch, benzotriazole derivative sunscreen, whitening pigment and a cosmetically acceptable carrier wherein the starch is present in amount of less than 2.2% by weight of the composition, and the benzotriazole derivative sunscreen is present in amount of less than 0.22% by weight of the composition, and further wherein the weight ratio of starch to benzotriazole derivative sunscreen is 5:1 to 10:1.

2. The composition according to claim 1 wherein the starch is aluminum starch octenylsuccinate.

3. The composition according to claim 1 wherein the starch is present in an amount of 0.001 to 2% by weight of the composition.

4. The composition according to claim 1 wherein the benzotriazole derivative sunscreen is methylene bis-benzotriazolyl tetramethylbutylphenol.

5. The composition according to claim 1 wherein the amount of the benzotriazole derivative sunscreen is 0.001 to 0.2% by weight of the composition.

6. The composition according to claim 1 wherein the starch is present in an amount from 0.6 to 1.2% by weight.

7. The composition according to claim 1 wherein the whitening pigment is titanium dioxide.

8. The composition according to claim 7 wherein the titanium dioxide has an average particle diameter from 0.1 to 1 micron.

9. The composition according to claim 7 wherein the titanium dioxide is present in an amount from 0.2 to 3% by weight of the composition.

10. The composition according to claim 1 wherein the composition further comprises non-ionic surfactant.

11. The composition according to claim 1 wherein the composition is an oil-in-water emulsion.

12. The composition according to claim 1 wherein the composition comprises from 50 to 90% of water by weight of the composition.

13. The composition according to claim 5 wherein the amount of benzotriazole derivative sunscreen is from 0.05 to 0.15% by weight of the composition.

14. The composition according to claim 6 wherein the benzotriazole derivative sunscreen is present in an amount from 0.07 to 0.12% by weight.

15. The composition according to claim 8 wherein titanium dioxide has an average particle size from 300 to 700 nm.

16. The composition according to claim 1 where the benzotriazole derivative sunscreen is methylene bis-benzotriazolyl tetramethylbutylphenol, the starch is aluminum starch octenylsuccinate wherein the starch is present at an amount from 0.6 to 1.2% by weight, the sunscreen is present 0.07 to 0.12% by weight and the whitening pigment is titanium dioxide having an average particle diameter from 300 to 700 nm.

Assignees

• Conopco Inc

Inventors

• Wang Bingqing
• Wang Zheng
• Zhang Qian
• Zheng Xia

Classifications

• A61K8/062

  Oil-in-water emulsions · CPC title

• A61K8/496 Primary

  Triazoles or their condensed derivatives, e.g. benzotriazoles · CPC title

• A61K8/732

  Starch; Amylose; Amylopectin; Derivatives thereof · CPC title

• A61K8/29

  Titanium; Compounds thereof · CPC title

• A61Q17/04

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