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    • 6. 发明申请
    • VINYLHYDROGENPOLYSILOXANE ADHESIVE COMPOSITION
    • 乙烯基硅氧烷粘合剂组合物
    • WO2010129123A3
    • 2011-01-06
    • PCT/US2010030023
    • 2010-04-06
    • DOW CORNINGGREER NATHANSHOPE MARILYNSUTO MICHITAKAZHONG BIANXIAOZHU BIZHONG
    • GREER NATHANSHOPE MARILYNSUTO MICHITAKAZHONG BIANXIAOZHU BIZHONG
    • C08G77/12B32B7/12B32B27/00C08G77/20
    • C08G77/20B32B17/10B32B27/28B32B2383/00C08G77/12Y10T428/24802
    • Vinylhydrogenpolysiloxanes are provided. The vinylhydrogenpolysiloxanes comprise organopolysiloxanes having at least two silicon-bonded hydrogen atoms and at least two silicon-bonded vinyl groups. As a fraction of the total number of silicon atoms in the vinylhydrogenpolysiloxanes, about 25% to about 90% of the silicon atoms are bonded to a hydrogen atom and about 10% to about 45% are bonded to a vinyl group. The ratio of the number of silicon-bonded hydrogen groups to the number of silicon-bonded vinyl groups is about 1.3 to about 6. Also provided are silicone compositions comprising at least one vinylhydrogenpolysiloxane and a hydrosilylation catalyst; silicone adhesives comprising a cured product of at least one vinylhydrogenpolysiloxane; and laminates comprising at least one such silicone adhesive. When subjected to high temperatures or direct flame, the vinylhydrogenpolysiloxanes form chars that retain adhesion to various substrates.
    • 提供乙烯基聚硅氧烷。 乙烯基氢聚硅氧烷包括具有至少两个与硅键合的氢原子和至少两个与硅键合的乙烯基的有机聚硅氧烷。 作为乙烯基聚硅氧烷中硅原子总数的一部分,约25%至约90%的硅原子与氢原子结合,约10%至约45%与乙烯基结合。 与硅键合的乙烯基基团的数量的比例为约1.3至约6.还提供了包含至少一种乙烯基氢聚硅氧烷和氢化硅烷化催化剂的硅氧烷组合物; 包含至少一种乙烯基氢聚硅氧烷的固化产物的硅氧烷粘合剂; 以及包含至少一种这种硅氧烷粘合剂的层压材料。 当经受高温或直接火焰时,乙烯基氢聚硅氧烷形成保留对各种基材的粘合性的炭。