申请人:Mitsui Toatsu Chemicals, Incorporated
公开号:US04522993A1
公开(公告)日:1985-06-11
Disclosed herein are a resin for high-refractivity lenses, formed by copolymerizing at least one nucleus-halogenated benzene dicarboxylate represented by the following general formula (I): ##STR1## wherein X means a chlorine or bromine atom, n is 2 or 4, m stands for 0 or 1 and R denotes a hydrogen atom or a methyl group with at least one unifunctional monomer having a refractive index of at least 1.55 as a homopolymer, capable of undergoing a radical polymerization and containing an aromatic ring as well as high-refractivity lenses made of such a resin. The lens-making resin according to this invention features a high refractive index, excellent processability such as superb grinding processability and high impact resistance, outstanding miscibility between the unifunctional monomer and bifunctional monomer upon copolymerization thereof, and minimized polymerization strain.
本文披露了一种用于高折射率透镜的树脂,由共聚至少一种由以下通式(I)表示的核-卤代苯二羧酸酯形成:##STR1## 其中X表示氯或溴原子,n为2或4,m表示0或1,R表示氢原子或甲基基团,具有折射率至少为1.55的单官能单体作为均聚物,能够进行自由基聚合并含有芳香环,并且由此制成的高折射率透镜。本发明的透镜制造树脂具有高折射率、优异的加工性能,如卓越的磨削加工性能和高冲击抗性,单官能单体和双官能单体在共聚聚合时的出色混溶性,以及最小化聚合应变。