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    • 16. 发明申请
    • PROCESS FOR PRODUCTION OF CYCLIC POLYORGANOSILOXANE, CURING AGENT, CURABLE COMPOSITION, AND CURED PRODUCT OF THE CURABLE COMPOSITION
    • 生产环状聚硅氧烷,固化剂,可固化组合物和可固化组合物固化产物的方法
    • US20100267919A1
    • 2010-10-21
    • US12741697
    • 2008-11-07
    • Yoshikatsu IchiryuMasayuki Fujita
    • Yoshikatsu IchiryuMasayuki Fujita
    • C08G77/18C07F7/07C07D251/34
    • C07F7/21C07F7/0874C08G77/045C08G77/12C08G77/54
    • An object of the invention is to provide a curing agent and a curable composition capable of forming a cured product, which is applicable for optical material and which has excellent heat and light transparency and crack resistance, and a cured product obtained by curing the same. Moreover, an object of the invention is to provide a method for producing with use of the components of the curing agent a cyclic polyorganosiloxane having a specific structure, in a selective manner and in high yield. In order to attain the objects, a curable composition including, as essential components, (A) an organic compound including at least two carbon-carbon double bonds that are reactive with a SiH group, (B) a compound having at least two SiH groups per molecule, and (C) a hydrosilylation catalyst, uses a modified polyorganosiloxane compound having at least two SiH groups per molecule as the compound having at least two SiH groups, which modified polyorganosiloxane compound is a reaction product of a specific cyclic polyorganosiloxane.
    • 本发明的目的是提供能够形成固化产物的固化剂和可固化组合物,其可应用于光学材料并且具有优异的耐热和光透明性和抗裂性,以及通过固化获得的固化产物。 此外,本发明的目的是提供一种使用固化剂的组分以选择性方式和高产率制备具有特定结构的环状聚有机硅氧烷的方法。 为了达到上述目的,作为必要成分的(A)含有至少两个与SiH基反应的碳 - 碳双键的有机化合物,(B)具有至少两个SiH基的化合物作为必要成分的固化性组合物 和(C)氢化硅烷化催化剂,使用每分子具有至少两个SiH基团的改性聚有机硅氧烷化合物作为具有至少两个SiH基团的化合物,该改性聚有机硅氧烷化合物是特定的环状聚有机硅氧烷的反应产物。