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シリコーンエラストマー球状微粒子をポリオルガノシルセスキオキサンで被覆したシリコーン微粒子およびその製造方法
专利权人:
信越化学工業株式会社
发明人:
井口 良範,堀口 隆二
申请号:
JP2009240813
公开号:
JP5375513B2
申请日:
2009.10.19
申请国别(地区):
JP
年份:
2013
代理人:
摘要:
Provided are silicone microparticles including 100 parts by mass of silicone elastomer spherical microparticles having a volume average particle diameter within a range from 0.1 to 100 µm, and 0.5 to 25 parts by mass of a polyorganosilsesquioxane that coats the surface of the silicone elastomer spherical microparticles, in which the silicone elastomer is capable of absorbing not less than 200 parts by mass of a polymethylsiloxane having a viscosity at 25°C of not more than 10 mm 2 /s per 100 parts by mass of the silicone elastomer. These silicone microparticles are capable of absorbing a large amount of the above types of polymethylsiloxanes, which represent low-viscosity silicones, and can therefore suppress the greasiness, stickiness, and oily film feeling of cosmetic materials containing this type of polymethylsiloxane. The silicone microparticles can be produced by hydrolyzing and condensing an organotrialkoxysilane in a water medium, in the presence of the above silicone elastomer spherical microparticles and an alkaline material, thereby coating the surface of the silicone elastomer spherical microparticles with a polyorganosilsesquioxane.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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