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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 9932446 B1

PDFFull Text
Date of Patent:
Apr. 03, 2018

Filed:

Sep. 08, 2010

Method of manufacturing a purified product of alkyl-modified polydimethylsiloxane, a cosmetic raw material, and cosmetics

Applicants:

Yasuo Nomura, Yokohama, JP;

Keisuke Nishino, Hakusan, JP;

Yasue Kanzaki, Chiba, JP;

Inventors:

Yasuo Nomura, Yokohama, JP;

Keisuke Nishino, Hakusan, JP;

Yasue Kanzaki, Chiba, JP;

Assignee:

DOW CORNING TORAY CO., LTD., Chiyoda-Ku, Tokyo, JP;

Attorney:

Howard & Howard Attorneys PLLC

Primary Examiner:

Anna Falkowitz

Int. Cl.
CPC ...
A61K 8/58 (2006.01); C07F 7/08 (2006.01); C08G 77/34 (2006.01); A61K 8/06 (2006.01); A61K 8/891 (2006.01); A61Q 17/04 (2006.01);
U.S. Cl.
CPC ...
C08G 77/34 (2013.01); A61K 8/064 (2013.01); A61K 8/585 (2013.01); A61K 8/891 (2013.01); A61Q 17/04 (2013.01);
Abstract

To provide a method for manufacturing a purified product of an alkyl-modified polydimethylsiloxane that is practically odorless and compatible with other cosmetic raw materials. The manufacturing method comprises the steps of: [A] synthesizing an alkyl-modified polydimethylsiloxane by subjecting a hydrosilyl-containing polydimethylsiloxane and an C2-C30 α-olefin to a hydrosilation reaction, and [B] subjecting the crude alkyl-modified polydimethylsiloxane obtained in Step [A] to a treatment of rendering it odorless by a hydrogenation reaction in the presence of a hydrogenation catalyst in an organic solvent (c) that is essentially free of active hydrogen atoms and has a boiling point equal to or greater than 70° C.

Find Patent Forward Citations

Nomura, Yasuo. (2018). Method of manufacturing a purified product of alkyl-modified polydimethylsiloxane, a cosmetic raw material, and cosmetics (U.S. Patent No. 9932446). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9932446

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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