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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9616254 B1

PDFFull Text
Date of Patent:
Apr. 11, 2017

Filed:

Oct. 28, 2014

Aqueous dispersion comprising silicone elastomer particles, a silicone elastomer particle and a cosmetic

Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventors:

Yoshinori Inokuchi, Annaka, JP;

Ryuji Horiguchi, Annaka, JP;

Chihiro Hayakawa, Tokyo, JP;

Masayuki Konishi, Tokyo, JP;

Assignee:

SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Robert A Wax

Assistant Examiner:

Quanglong Truong

Int. Cl.
CPC ...
A61K 9/50 (2006.01); A61Q 1/02 (2006.01); A61K 8/86 (2006.01); C08L 83/04 (2006.01); C08L 83/14 (2006.01); A61Q 19/00 (2006.01); A61K 8/891 (2006.01); A61K 8/02 (2006.01); A61Q 1/12 (2006.01); A61Q 17/04 (2006.01); C08G 77/12 (2006.01); C08G 77/20 (2006.01);
U.S. Cl.
CPC ...
A61Q 1/02 (2013.01); A61K 8/0241 (2013.01); A61K 8/86 (2013.01); A61K 8/891 (2013.01); A61Q 19/00 (2013.01); C08L 83/04 (2013.01); C08L 83/14 (2013.01); A61K 2800/412 (2013.01); A61K 2800/56 (2013.01); A61K 2800/614 (2013.01); A61K 2800/654 (2013.01); A61Q 1/12 (2013.01); A61Q 17/04 (2013.01); C08G 77/12 (2013.01); C08G 77/20 (2013.01);
Abstract

One of the purposes of the present invention is to provide an aqueous dispersion of silicone elastomer particles to provide a stable emulsion and the silicone elastomer particle, wherein a polyoxyethylene alkyl ether which has an alkyl group having a large number of carbon atoms is used as a surfactant. Further, another purpose is to provide a cosmetic comprising said aqueous dispersion or said silicone elastomer particles and giving a good feeling in the use. The present invention provides an aqueous dispersion comprising (A) silicone elastomer particles having a 90% volume cumulative diameter (D90) of 0.3 to 20 μm in an amount of 5 to 80 mass %, based on a total mass of the aqueous dispersion, (B) at least one polyoxyethylene alkyl ether having an alkyl group having 18 carbon atoms in an amount of 0.01 to 15 mass %, based on a total mass of the aqueous dispersion, wherein a hydrophile-lipophile balance (HLB) of the polyoxyethylene alkyl ether is 12.8 to 15.1, and (C) water in an amount of 19 to 94 mass %, based on a total mass of the aqueous dispersion. Further, the present invention provides a material comprising the aforesaid components (A) and (B), a method for preparing the material and a cosmetic comprising the aqueous dispersion or the material.

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