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    • 40. 发明授权
    • High water content silicone hydrogel contact lenses
    • 高含水硅胶水凝胶隐形眼镜
    • US09360594B2
    • 2016-06-07
    • US13985109
    • 2012-02-23
    • Yuwen LiuCharlie ChenYe HongCharles A. FrancisLi YaoArthur Back
    • Yuwen LiuCharlie ChenYe HongCharles A. FrancisLi YaoArthur Back
    • C08L101/14G02B1/04G02C7/04C08G77/04C08L51/08C08F283/06
    • G02B1/043C08F283/065C08L51/085C08L101/14
    • Silicone hydrogel contact lenses having a high water content are described. The lenses are derived from a polymerizable composition including a first siloxane monomer represented by formula (1): wherein m of formula (1) represents one integer from 3 to 10, n of formula (1) represents one integer from 1 to 10, R1 of formula (1) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (1) is independently either a hydrogen atom or a methyl group; the lenses also include units derived from a second siloxane monomer having a number average molecular weight of at least 7,000 daltons, and at least one vinyl-containing cross-linking agent. The lenses have average equilibrium water contents from about 30% wt/wt to about 70% wt/wt when fully hydrated. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.
    • 描述了具有高水含量的硅氧烷水凝胶隐形眼镜。 透镜衍生自包含由式(1)表示的第一硅氧烷单体的可聚合组合物:其中式(1)的m表示3至10的一个整数,式(1)的n表示1至10的整数,R 1 式(1)的烷基是碳原子数为1〜4的烷基,式(1)的各R 2独立地为氢原子或甲基。 透镜还包括衍生自数均分子量为至少7,000道尔顿的第二硅氧烷单体的单元和至少一种含乙烯基交联剂。 当完全水合时,透镜具有约30重量%至约70重量%的平均水含量。 还描述了硅胶水凝胶隐形眼镜的批次和制造硅酮水凝胶隐形眼镜的方法。