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.:
Date of Patent:
May. 25, 2010
Filed:
Jun. 03, 2002
Ichiro Ono, Gunma, JP;
Masanao Kamei, Gunma, JP;
Kiyomi Tachibana, Tokyo, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
A surface-treated powder powder which is surface-treated with an acrylic/silicone copolymer having at least one hydrolyzable silyl group in the molecule, and a cosmetic material containing this powder. The surface-treated powder of this invention preferably contains 0.1-30 wt parts of the acrylic/silicone copolymer relative to 100 wt parts of the powder prior to surface treatment. The acrylic/silicone copolymer preferably comprises a trunk polymer comprising an acrylic polymer, and a branched polymer comprising an organic polysiloxane. The surface activity of the surface-treated powder of this invention is very well blocked, and it has excellent water resistance and sebum resistance. In addition, the cosmetic material of this invention containing this surface-treated powder has good cosmetic lasting properties, and is highly stable over time.