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    • 1. 发明授权
    • High refractive index optical resin composition
    • 高折射率光学树脂组合物
    • US06342571B1
    • 2002-01-29
    • US09377805
    • 1999-08-20
    • Robert A. SmithMichael O. OkoroaforRobert D. HeroldT. Edwin Freeman
    • Robert A. SmithMichael O. OkoroaforRobert D. HeroldT. Edwin Freeman
    • C08F22020
    • C08F222/24
    • Polymerizable compositions comprising: (a) a mixture of thio(meth)acrylate functional monomers comprising, (a)(i) a first thio(meth)acrylate functional monomer, e.g., bis(thiomethacrylate)-1,2-ethylene, and (a)(ii) a second thio(meth)acrylate functional monomer, which is chain extended; (b) an aromatic monomer having at least two vinyl groups, e.g., divinyl benzene; (c) a polythiol monomer having at least two thiol groups, e.g., pentaerythritol tetrakis(3-mercaptopropionate); and (d) a comonomer selected from, (d)(i) an anhydride monomer having at least one ethylenically unsaturated group, e.g., methacrylic anhydride; (d) (ii) a monomer having at least three (meth)acryloyl groups, e.g., pentaerythritol tetrakis(acrylate); and (d)(iii) mixtures of monomers (d)(i) and (d)(ii). A polymerizate of the polymerizable composition has a refractive index of at least 1.57 and an Abbe number of at least 33.
    • 可聚合组合物包括:(a)硫代(甲基)丙烯酸酯官能单体的混合物,其包含(a)(i)第一硫代(甲基)丙烯酸酯官能单体,例如双(硫代甲基丙烯酸酯)-1,2-亚乙基和( a)(ii)链延伸的第二硫代(甲基)丙烯酸酯官能单体; (b)具有至少两个乙烯基的芳族单体,例如二乙烯基苯; (c)具有至少两个硫醇基的多硫醇单体,例如季戊四醇四(3-巯基丙酸酯); 和(d)选自(d)(i)具有至少一个烯属不饱和基团的酸酐单体的共聚单体,例如甲基丙烯酸酐; (d)(ii)具有至少三个(甲基)丙烯酰基的单体,例如季戊四醇四(丙烯酸酯); 和(d)(iii)单体(d)(i)和(d)(ii)的混合物。 聚合性组合物的聚合物的折射率为至少1.57,阿贝数为33以上。