发明申请
- 专利标题： LOW PLATINUM CONTENT HYDROSILYLATION REACTION-CROSSLINKABLE SILICONE RUBBER POWDER
- 专利标题（中）： 低白度含硅氢化反应交联硅橡胶粉
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申请号： US14654625申请日： 2013-12-13
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公开(公告)号： US20150306019A1公开(公告)日： 2015-10-29
- 发明人: Mari WAKITA
- 申请人： DOW CORNING TORAY CO., LTD.
- 优先权： JP2012-280345 20121222
- 国际申请： PCT/JP2013/084178 WO 20131213
- 主分类号： A61K8/895
- IPC分类号： A61K8/895 ; C08G77/38 ; C08G77/34 ; A61K8/02
摘要：
A method to produce a hydrosilylation reaction-crosslinkable silicone rubber powder includes washing the hydrosilylation reaction-crosslinkable silicone rubber powder using an aqueous solution. The aqueous solution can be heated to a temperature of 30° C. to 99° C. The aqueous solution contains at least one type of surfactant. The hydrosilylation reaction-crosslinkable silicone rubber powder produced via the method has a platinum metal content ≦3.5 ppm by mass. The hydrosilylation reaction-crosslinkable silicone rubber powder can be used for various applications, including use in a cosmetic composition, which can also include a cosmetic raw material.
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