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    • 4. 发明授权
    • Addition-curable silicone composition and optical element
    • 可加成固化的硅氧烷组合物和光学元件
    • US08957165B2
    • 2015-02-17
    • US14095236
    • 2013-12-03
    • Shin-Etsu Chemical Co., Ltd.
    • Mitsuhiro IwataToshiyuki OzaiYukito Kobayashi
    • C08L83/08G02B1/04
    • G02B1/04C08L83/04C08L51/085
    • An addition-curable silicone composition that provides a cured product having a particularly high transparency, an excellent light extraction efficiency and a favorable strength characteristic by subjecting the cured product to a lower refractive index by using a specific composition. The present invention was accomplished by an addition-curable silicone composition, including at least: (A) a linear organopolysiloxane having 2 or more aliphatic unsaturated groups bonded to a silicon atom and 1 or more CF3—(CF2)y—(CH2)z— groups bonded to a silicon atom in one molecule; (B) an organopolysiloxane having 2 or more aliphatic unsaturated groups bonded to a silicon atom and 1 or more CF3—(CF2)y—(CH2)z— groups bonded to a silicon atom in one molecule and having a branch structure of a siloxane unit represented by an SiO4/2 and/or an RSiO3/2; (C) an organosilicon compound represented by the following general formula (1); and (D) a platinum group metal-based catalyst.
    • 提供通过使用特定组合物使固化产物经受较低折射率的具有特别高的透明度,优异的光提取效率和良好的强度特性的固化产物的可加成固化的硅氧烷组合物。 本发明通过加成可固化的有机硅组合物完成,该组合物至少包括:(A)具有键合到硅原子上的2个或更多个脂族不饱和基团和1个或多个CF 3 - (CF 2)y - (CH 2)z的直链有机聚硅氧烷 - 在一个分子中与硅原子键合的基团; (B)具有键合到硅原子上的2个或更多个脂族不饱和基团和1个或多个与一个分子中的硅原子键合的CF 3 - (CF 2)y - (CH 2)z - 基团并具有硅氧烷的分支结构的有机聚硅氧烷 由SiO4 / 2和/或RSiO3 / 2表示的单元; (C)由以下通式(1)表示的有机硅化合物; 和(D)铂族金属类催化剂。