申请人:NIPPON OIL AND FATS COMPANY, LIMITED
公开号:EP0425831A2
公开(公告)日:1991-05-08
A contact lens contains a copolymer obtained by copolymerizing, as an indispensible feed monomer, 2 to 95 wt.% of a carboxylic acid ester monomer and 98 to 5 wt.% of a copolymerizable monomer. The carboxylic acid ester monomer is represented by the formula (I)
CH₂ = - COO(CH₂)n - R₁ (I)
wherein R₁ stands for a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 1 to 12 carbon atoms, a cyclic alkyl group having 3 to 12 carbon atoms or an aryl group, and X stands for
in which R₂ and R₃ each stand for a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 1 to 12 carbon atoms, a cyclic alkyl group having 3 to 12 carbon atoms or an aryl group, m and l being integers of from 0 to 4, at least one of R₁, R₂ and R₃ being a group containing a fluorine atom and n being an integer of from 0 to 4.
一种隐形眼镜含有一种共聚物,该共聚物是由 2 至 95 重量份的羧酸酯单体和 98 至 5 重量份的可共聚单体作为不可缺少的进料单体共聚而成。羧酸酯单体由式 (I) 表示
CH₂ = - COO(CH₂)n - R₁ (I)
其中 R₁ 代表氢原子、具有 1 至 12 个碳原子的烷基、具有 1 至 12 个碳原子的烯基、具有 3 至 12 个碳原子的环状烷基或芳基,X 代表
其中 R₂ 和 R₃ 分别代表氢原子、具有 1 至 12 个碳原子的烷基、具有 1 至 12 个碳原子的烯基、具有 3 至 12 个碳原子的环状烷基或芳基,m 和 l 为 0 至 4 的整数,R₁、R₂ 和 R₃ 中至少有一个为含氟原子的基团,n 为 0 至 4 的整数。