申请人:Johnson & Johnson Vision Care, Inc.
公开号:EP1445641A1
公开(公告)日:2004-08-11
This invention provides an ophthalmic lens of high tensile elongation (i.e., that does not break easily). It is an ophthalmic lens comprising, as a polymerization component, monomers represented by formula (a) below:
wherein, in formula (a), R1 is H or a methyl group; R2 is a group that is selected from alkyl groups with 1 to 8 carbon atoms, aralkyl groups with 7 to 12 carbon atoms and aryl groups with 6 to 10 carbon atoms; L1 is a substituent that is selected from ethylene groups, 1,2-propylene groups, 1,3-propylene groups and 1,4-butylene groups; and L2 is a substituent that is selected from methylene groups, ethylene groups, 1,2-propylene groups, 1,3-propylene groups and 1,4-butylene groups.
本发明提供了一种拉伸伸长率高(即不易断裂)的眼科镜片。它是一种眼科镜片,包括作为聚合成分的下式(a)所代表的单体:
其中,在式(a)中,R1 是 H 或甲基;R2 是选自 1 至 8 个碳原子的烷基、7 至 12 个碳原子的芳基和 6 至 10 个碳原子的芳基的基团;L1 是选自
乙烯基、1,2-
丙烯基、1,3-
丙烯基和 1,4-
丁烯基的取代基;以及
L2 是选自亚甲基、
乙烯基、1,2-
丙烯基、1,3-
丙烯基和 1,4-
丁烯基的取代基。