申请人:Novartis AG
公开号:US10081697B2
公开(公告)日:2018-09-25
The invention provides a hydrophilized polydiorganosiloxane vinylic crosslinker which comprises (1) a polydiorganosiloxane polymer chain comprising dimethylsiloxane units and hydrophilized siloxane units each having one methyl substituent and one monovalent C4-C40 organic radical substituent having two to six hydroxyl groups, wherein the molar ratio of the hydrophilized siloxane units to the dimethylsiloxane units is from about 0.035 to about 0.15, and (2) two terminal (meth)acryloyl groups. The hydrophilized polydiorganosiloxane vinylic crosslinker has a number average molecular weight of from about 3000 Daltons to about 80,000 Daltons. The present invention is also related to a silicone hydrogel contact lens, which comprises repeating units derived from a hydrophilized polydiorganosiloxane vinylic crosslinker of the invention.
本发明提供了一种亲水聚二有机硅氧烷乙烯基交联剂,它包括(1)聚二有机硅氧烷聚合物链,该链由二甲基硅氧烷单元和亲水硅氧烷单元组成,每个二甲基硅氧烷单元具有一个甲基取代基和一个具有二至六个羟基的单价C4-C40有机基取代基,其中亲水硅氧烷单元与二甲基硅氧烷单元的摩尔比为约0.035至约0.15,以及(2)两个末端(甲基)丙烯酰基。亲水性聚二有机硅氧烷乙烯基交联剂的平均分子量为约 3000 道尔顿至约 80000 道尔顿。本发明还涉及一种硅酮水凝胶隐形眼镜,它包括由本发明的亲水聚二有机硅氧烷乙烯基交联剂衍生的重复单元。