Invention Grant
- Patent Title: Low platinum content hydrosilylation reaction-crosslinked silicone rubber powder
- Patent Title (中): 低铂含量硅氢化反应交联硅橡胶粉末
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Application No.: US14654625Application Date: 2013-12-13
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Publication No.: US09561171B2Publication Date: 2017-02-07
- Inventor: Mari Wakita
- Applicant: DOW CORNING TORAY CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: Dow Corning Toray Co., Ltd.
- Current Assignee: Dow Corning Toray Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Warner Norcross & Judd LLP
- Priority: JP2012-280345 20121222
- International Application: PCT/JP2013/084178 WO 20131213
- International Announcement: WO2014/098205 WO 20140626
- Main IPC: A61K8/895
- IPC: A61K8/895 ; A61K8/02 ; C08G77/34 ; C08G77/38 ; C08G77/20 ; C08G77/12
Abstract:
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.
Public/Granted literature
- US20150306019A1 LOW PLATINUM CONTENT HYDROSILYLATION REACTION-CROSSLINKABLE SILICONE RUBBER POWDER Public/Granted day:2015-10-29
Information query
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