公开(公告)号：US5225508A

公开(公告)日：1993-07-06

申请号：US710447

申请日：1991-06-05

申请人： Yutaka Tamura ,  Fumie Watari

发明人： Yutaka Tamura ,  Fumie Watari

IPC分类号： C07C321/20 ,  C07C321/28 ,  C08F12/34 ,  G02B1/04

CPC分类号： C08F12/34 ,  C07C321/20 ,  C07C321/28 ,  G02B1/04

摘要： Disclosed are a diethylenicallyunsaturated monomer represented by the following formula [Ia]: ##STR1## wherein n is an integer of from 1 to 10, and a and b each represent 0 or an integer of from 1 to 4,and an optical resin which is substantially insoluble and infusible and has a refractive index .eta..sub.D of at least 1.62, and which is obtained by polymerizing a monomer comprising 50 to 100% by weight of this diethylenically unsaturated monomer.

摘要翻译： 公开了由下式[Ia]表示的二烯类不饱和单体：其中n为1〜10的整数，a和b各自表示0或1〜4的整数， 树脂，其基本上不溶和不熔，折射率ηD至少为1.62，其通过聚合包含50-100重量％的该烯键式不饱和单体的单体而获得。

公开(公告)号：US5191061A

公开(公告)日：1993-03-02

申请号：US779051

申请日：1991-10-18

申请人： Yukihito Zanka ,  Seiichiro Hayakawa ,  Tsutomu Isaka ,  Fumie Watari

发明人： Yukihito Zanka ,  Seiichiro Hayakawa ,  Tsutomu Isaka ,  Fumie Watari

IPC分类号： C08F220/38 ,  G02B1/04

CPC分类号： C08F220/38 ,  G02B1/041

摘要： A cured resin for high-fraction lenses is disclosed, which is obtained by polymerizing a composition comprising (A) from 70 to 99 parts by weight of a sulfur-containing aromatic (meth)acrylate represented by formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group; R.sup.2 represents an alkylene group; Ar represents an arylene group, an arylene group substituted with a halogen atom except a fluorine atom, an aralkylene group, or an aralkylene group substituted with a halogen atom except a fluorine atom; X represents --O-- or --S--; Y represents --S-- or --SO.sub.2 -- when X is --O--, or Y represents --S--, --SO.sub.2 --, --CO--, an alkylene group, an aralkylene group, an alkylene ether group, an aralkylene ether group, an alkylene thioether group, or an aralkylene thioether group when X is --S--; m and n each represents an integer of from 1 to 5; and p represents 0 or an integer of from 1 to 10, (B) from 1 to 30 parts by weight of at least one mercapto compound selected from (B-1) a compound represented by formula (II): ##STR2## wherein R.sup.6 represents a methylene group or an ethylene group; R.sup.7 represents a hydrocarbon group having from 2 to 15 carbon atoms or an alkyl ether residue having from 2 to 15 carbon atoms; and r represents an integer of from 2 to 6, (B-2) a compound represented by formula (III): ##STR3## wherein W represents ##STR4## wherein s and u each represents an integer of from 1 to 8, and t represents 0 or an integer of 1 or 2, and (B-3) a compound represented by formula (IV): ##STR5## wherein R.sup.8 and R.sup.9 each represents an alkylene group having from 1 to 3 carbon atoms; a and b each represents 0 or 1; and c represents 1 or 2, and (C) up to 50 parts by weight of an ethylenically unsaturated monomer copolymerizable with the compound represened by formula (I). The resin has a high refractive index, high transparency, and excellent impact resistance.