| 摘要 |
<p>PURPOSE:The titled composition excellent in room temperature storage stability and quickly curable by heating, obtained by adding a platinum catalyst and a specified silane compound to an organo(hydrogen)polysiloxane containing no halohydrocarbon group. CONSTITUTION:The purpose organopolysiloxane composition is obtained by mixing (A) an organohydrogenpolysiloxane having an organosiloxane unit of formula I (wherein R<1> is a 2-4C alkenyl, R<2> is a monovalent hydrocarbon, a is 1-3, b is 0-2, and a+b<=3) and containing no halohydrocarbon group with (B) an organohydrogenpolysiloxane having an organohydrogensiloxane unit of formula II (wherein R<3> is a monovalent hydrocarbon, c is 1-3, d is 0-2, and c+d<=3) and containing no halohydrocarbon group, (C) a platinum catalyst (e.g., chloroplatinic acid) and (D) a silane compound of formula III (wherein R<4>, R<5>, and R<6> are each a 1-10C hydrocarbon), e.g., a compound of formula IV.</p> |
