发明授权
- 专利标题： Water repellent and method of preparation
- 专利标题（中）： 防水剂及其制备方法
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申请号： US85809申请日： 1993-07-06
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公开(公告)号： US5328683A公开(公告)日： 1994-07-12
- 发明人: Asao Harashima
- 申请人： Asao Harashima
- 申请人地址： JPX Tokyo
- 专利权人： Dow Corning Toray Silicone Co., Ltd.
- 当前专利权人： Dow Corning Toray Silicone Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX4-079050 19920228
- 主分类号： A61K8/18
- IPC分类号： A61K8/18 ; A61K8/11 ; A61K8/26 ; A61K8/58 ; A61Q1/00 ; A61Q1/02 ; A61Q1/12 ; C08K9/06 ; C08L83/04 ; C09C1/36 ; C09C3/12 ; C09D7/12 ; C09D11/02 ; C09D11/03 ; C09D183/00 ; C09D183/02 ; C09K3/18 ; A61K7/021
摘要：
A water repellent powdered material and a method of making the powder in which the powdered material is mixed with an organic solvent solution of a triorganosiloxysilicic acid having the formula (R.sub.3 SiO.sub.1/2).sub.2 nSiO.sub.2 in which R is a monovalent hydrocarbon radical such as alkyl, aryl, and alkenyl; and n is an integer having a value of one to five; with the acid being present in an amount of from 0.1 to 20 parts by weight per one hundred parts by weight of the powdered material. The powder can be used to formulate cosmetic foundations.
公开/授权文献
- US6165093A Pulley with belt-wiping surface 公开/授权日：2000-12-26
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