申请人:MITSUBISHI PETROCHEMICAL CO., LTD.
公开号:EP0336361A1
公开(公告)日:1989-10-11
A sulfur-containing acryl oligomer composition represented by formula (I):
wherein R₁ represents a hydrogen atom or a methyl group; R₂ and R₃ each represents an alkylene group having from 1 to 12 carbon atoms; R₄ represents an alkylene group having from 1 to 12 carbon atoms, an oxydialkylene group having from 2 to 12 carbon atoms, or an aralkylene group having from 6 to 20 carbon atoms; X represents a chlorine, bromine or iodine atom; m represents 0 or an integer of from 1 to 4; and n represents an average degree of oligomerization of 10 or smaller.
The oligomer composition provides on polymerization a cured product having a refractive indices of 1.60 or higher, excellent transparency, and optical uniformity and is therefore useful as a material for plastic lenses.
一种由式(I)代表的含硫丙烯酸低聚物组合物:
其中 R₁ 代表氢原子或甲基;R₂ 和 R₃ 各自代表具有 1 至 12 个碳原子的亚烷基;R₄ 代表具有 1 至 12 个碳原子的亚烷基、具有 2 至 12 个碳原子的氧二亚烷基或具有 6 至 20 个碳原子的芳烷基;X 代表氯原子、溴原子或碘原子;m 代表 0 或 1 至 4 的整数;以及 n 代表 10 或更小的平均低聚度。
这种低聚物组合物在聚合过程中产生的固化产物具有 1.60 或更高的折射率、出色的透明度和光学均匀性,因此可用作塑料镜片的材料。