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Silicone microparticles comprising silicone elastomer spherical microparticles coated with polyorganosilsesquioxane, and method of producing same
专利权人:
Ryuji Horiguchi;Yoshinori Inokuchi
发明人:
Yoshinori Inokuchi,Ryuji Horiguchi
申请号:
US12609524
公开号:
US08632791B2
申请日:
2009.10.30
申请国别(地区):
US
年份:
2014
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 30 parts by mass of at least one oily substance selected from the group consisting of sebum, hydrocarbon oils and ester oils per 100 parts by mass of the silicone elastomer. These silicone microparticles are capable of absorbing a large amount of the above oily substances, are able to ameliorate various problems caused by sebum such as changes in cosmetic make-up properties, changes in the color of cosmetic materials and increased shininess of cosmetic materials, and are also able to suppress the greasiness, stickiness, and oily film feeling of cosmetic materials containing at least one of liquid oils composed of hydrocarbon oils and ester oils. 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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