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1. 发明授权

US5310842A Higher alkoxy-substituted organopolysiloxane 失效
标题翻译：高级烷氧基取代的有机聚硅氧烷
公开(公告)号：US5310842A
公开(公告)日：1994-05-10
申请号：US046287
申请日：1993-04-14
申请人： Shoji Ichinohe , Syuichi Arai
发明人： Shoji Ichinohe , Syuichi Arai
IPC分类号： A61K8/893 , A61Q19/00 , C08G77/08 , C08G77/12 , C08G77/14 , C08G77/18 , C08G77/38
CPC分类号： A61K8/893 , A61Q19/00 , C08G77/38
摘要： The invention provides a higher alkoxy-substituted organopolysiloxane having, in a molecule, at least one alkoxy group of 4 to 30 carbon atoms bonded to the silicon atom excepting those at the molecular chain ends and still having a high degree of polymerization of at least 15. Such an organopolysiloxane, not known in the prior art, can be prepared by the dehydrogenation condensation reaction between an organohydrogenpolysiloxane and a higher aliphatic alcohol in the presence of a catalyst system consisting of a platinum compound and an organic acid such as acetic and citric acids. The higher alkoxy-substituted organopolysiloxane is useful as an additive in toiletry and cosmetic preparations by virtue of the good compatibility with other ingredients therein and high resistance against hydrolysis.
摘要翻译：本发明提供了在分子中具有至少一个与硅原子键合的至少一个具有4-30个碳原子的烷氧基的高级烷氧基取代的有机聚硅氧烷，除了分子链末端的那些，仍然具有至少15个聚合度在现有技术中未知的这种有机聚硅氧烷可以通过在由铂化合物和有机酸如乙酸和柠檬酸组成的催化剂体系的存在下，通过有机氢聚硅氧烷和高级脂族醇之间的脱氢缩合反应来制备。高级烷氧基取代的有机聚硅氧烷由于与其它成分的良好相容性和高抗水解性而可用作化妆品和化妆品制剂中的添加剂。

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