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    • 83. 发明授权
    • Silicone lens and silicone resin composition for molding lens
    • 硅胶透镜和用于成型镜片的硅树脂组合物
    • US07737194B2
    • 2010-06-15
    • US11785791
    • 2007-04-20
    • Tsutomu KashiwagiToshio Shiobara
    • Tsutomu KashiwagiToshio Shiobara
    • C08L83/04
    • C08L83/04C08G77/12C08G77/16C08G77/20C08G77/70C08G77/80C08K5/56C08L83/00
    • A colorless transparent silicone lens produced by thermally curing a silicone resin composition comprising (A) an organopolysiloxane having a resin structure comprising R1SiO1.5 unit, R22SiO unit, and R3aR4bSiO(4-a-b)/2 unit wherein R1, R2, and R3 are independently methyl group, ethyl group, propyl group, cyclohexyl group, or phenyl group, R4 is vinyl group or allyl group, a is 0, 1, or 2, b is 1 or 2, and a+b is 2 or 3, and wherein number of repetition of the R22SiO unit is 5 to 300, (B) an organohydrogen polysiloxane having a resin structure comprising R1SiO1.5 unit, R22SiO unit, and R3cHdSiO(4-c-d)/2 unit wherein c is 0, 1, or 2, d is 1 or 2, and c+d is 2 or 3, and wherein number of repetition of the R22SiO unit is 5 to 300, the component, and (C) a platinum group catalyst. A silicone lens having excellent flexibility, transparency, and moldability as well as reduced surface tackiness is provided.
    • 通过热固化硅氧烷树脂组合物制得的无色透明硅氧烷透镜,其包含(A)具有包含R1SiO1.5单元,R22SiO单元和R3aR4bSiO(4-ab)/ 2单元的树脂结构的有机聚硅氧烷,其中R1,R2和R3为 乙基,丙基,环己基或苯基,R4为乙烯基或烯丙基,a为0,1或2,b为1或2,a + b为2或3,以及 其中R22SiO单元的重复数为5〜300,(B)具有包含R1SiO1.5单元,R22SiO单元和R3cHdSiO(4-cd)/ 2单元的树脂结构的有机氢聚硅氧烷,其中c为0,1或 2,d为1或2,c + d为2或3,R22SiO单元的重复数为5〜300,该成分为(C)铂族催化剂。 提供了具有优异的柔性,透明性和成型性以及降低的表面粘性的硅氧烷透镜。