POLYTHIOURETHANE-BASED POLYMERIZABLE COMPOSITION AND OPTICAL RESIN OBTAINED FROM THE SAME
申请人:Mitsui Chemicals, Inc.
公开号:EP1925629A1
公开(公告)日:2008-05-28
Provided are a polymerizable composition for giving a resin which has a high refractive index and low dispersion, and is especially excellent in impact resistance and tintability; and a resin and an optical component each obtained by curing the composition. There used a polymerizable composition comprising (A) a compound represented by Formula (1) and/or by Formula (2), at least one compound as the following component (B), and at least one compound as the following component (C):
(B) polythiol compounds optionally having at least one (poly)sulfide bond in a molecule, and
(C) compounds represented by Formula (3):
HO-[R1-(Y)n]m-R2-X (3)
(in above Formula (3), X is an OH group or a SH group; Y is an oxygen atom or a sulfur atom; R1 and R2 are each independently an optionally substituted methylene group or an optionally substituted alkylene group having carbon atoms of not smaller than 2 and not larger than 4; n is an integer of 0 or 1 when Y is an oxygen atom, or 0 or an integer of not smaller than 1 and not larger than 2 when Y is a sulfur atom; and m is 0 or an integer of not smaller than 1 and not larger than 3, provided that (carbon number of R1+n) × m + (carbon number of R2) is 3 or larger).
本发明提供了一种可聚合组合物,该组合物可生成具有高折射率和低分散性,特别是具有优异抗冲击性和着色性的树脂;还提供了通过固化该组合物获得的树脂和光学元件。本发明使用了一种可聚合组合物,该组合物包含 (A) 由式 (1) 和/或式 (2) 表示的化合物、至少一种作为以下组分的化合物 (B) 以及至少一种作为以下组分的化合物 (C):
(B) 分子中任选具有至少一个(多)硫化键的聚硫醇化合物,和
(C) 由式 (3) 表示的化合物:
HO-[R1-(Y)n]m-R2-X (3)
(在上式(3)中,X 是 OH 基团或 SH 基团;Y 是氧原子或硫原子;R1 和 R2 各自独立地是任选取代的亚甲基或任选取代的亚烷基,其碳原子数不小于 2 且不大于 4;当 Y 为氧原子时,n 为 0 或 1 的整数;当 Y 为硫原子时,n 为 0 或不小于 1 且不大于 2 的整数;以及 m 为 0 或不小于 1 且不大于 3 的整数,条件是(R1+n 的碳数)×m +(R2 的碳数)为 3 或更大)。