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    Sulfur-containing acryl oligomer composition
    1.
    发明授权
    Sulfur-containing acryl oligomer composition 失效
    含硫丙烯酰低聚物组合物

    公开(公告)号：US4990653A

    公开(公告)日：1991-02-05

    申请号：US330809

    申请日：1989-03-30

    申请人： Seiichiro Hayakawa ,  Shoji Ichihara

    发明人： Seiichiro Hayakawa ,  Shoji Ichihara

    IPC分类号： C07C67/00 ,  C07C313/00 ,  C07C323/12 ,  C08G75/02 ,  C08G75/04 ,  G02B1/04

    CPC分类号： C07C323/12 ,  G02B1/041

    摘要： A sulfur-containing acryl oligomer composition represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents an alkylene group having from 1 to 12 carbon atoms; R.sub.4 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.

    Resin for high-refraction lens containing a sulfur-containing aromatic(meth)acrylate and a mercapto compound
    4.
    发明授权
    Resin for high-refraction lens containing a sulfur-containing aromatic(meth)acrylate and a mercapto compound 失效
    含有含硫磺酸（甲基）丙烯酸酯和乳化剂的高折射率树脂树脂

    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.