发明授权
- 专利标题： Composite silicone rubber powder coated with inorganic microfines and an organic silicon compound, method of its manufacture, and use thereof
- 专利标题（中）： 涂覆有无机微细颗粒和有机硅化合物的复合硅橡胶粉末，其制造方法及其用途
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申请号： US11813323申请日： 2005-12-15
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公开(公告)号： US07648766B2公开(公告)日： 2010-01-19
- 发明人: Yoshitsugu Morita
- 申请人： Yoshitsugu Morita
- 申请人地址： JP Tokyo
- 专利权人： Dow Corning Toray Company, Ltd.
- 当前专利权人： Dow Corning Toray Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Howard & Howard Attorneys PLLC
- 优先权： JP2005-001014 20050105
- 国际申请： PCT/JP2005/023444 WO 20051215
- 国际公布： WO2006/073055 WO 20060713
- 主分类号： B32B5/16
- IPC分类号： B32B5/16
摘要：
A composite silicone rubber powder comprising: (A) a silicone rubber powder having an average particle size within the range of 0.1 to 500 μm and hardness of at least 15 by type A durometer according to JIS K 6253, wherein the surface of said silicone rubber powder is coated with (B) a microfine inorganic powder having the BET specific surface area of at least 10 m2/g, said composite silicone rubber powder being characterized by the fact that the surface thereof is treated with (C) an organic silicon compound having a silicon-bonded hydrolyzable group, or with a product of partial hydrolysis of said compound, is characterized by excellent dispersibility in coating and cosmetic materials and having the possibility of improving matting properties of coating materials, and feel of use of cosmetic materials.
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