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    • 9. 发明授权
    • Room temperature-curable organopolysiloxane composition
    • 室温可固化的有机聚硅氧烷组合物
    • US4623693A
    • 1986-11-18
    • US762555
    • 1985-08-05
    • Yoshio InoueTakehide OkamiKoji YokooHitoshi Kinami
    • Yoshio InoueTakehide OkamiKoji YokooHitoshi Kinami
    • C08L83/00C08K5/00C08K5/5419C08K5/5425C08K5/57C08L83/04C08L83/06C08K3/02
    • C08L83/04C08G77/16Y10S528/901
    • The room temperature-curable organopolysiloxane composition of the invention is characteristic in the remarkably increased adhesive bonding strength of the rubber of the composition to the surface of a substrate of metals, plastics and others on which the composition has been cured. The composition is also advantageous in the improved thixotropy despite the admixture of an adhesion improver mentioned below. Thus, the composition comprises, in addition to conventional components in a deacidification type room temperature curable organopolysiloxane composition, a specific organic silicon compound represented by the general formula(R.sup.3 O).sub.b (MeCOO).sub.3-b Si--O--R.sup.4 --O--Si(OCOMe).sub.3-b (OR.sup.3).sub.b,in which R.sup.3 is a monovalent hydrocarbon group, R.sup.4 is a divalent hydrocarbon group or a polyoxyalkylene group of the formula --C.sub.x H.sub.2x --O).sub.n C.sub.x H.sub.2x --, x being 2 to 4 and n being a positive integer, and b is 1 or 2.
    • 本发明的室温可固化的有机基聚硅氧烷组合物的特征在于组合物的橡胶与其组合物已经固化的金属,塑料和其它基材的表面的粘合强度显着增加。 尽管混合以下提及的粘合改进剂,该组合物在改善的触变性方面也是有利的。 因此,除了脱酸型室温可固化的有机聚硅氧烷组合物中的常规组分外,组合物还包含由通式(R3O)b(MeCOO)3-bSi-O-R4-O-Si(MeCOO)3-bSi-O-R4-O-Si OCOMe)3-b(OR3)b,其中R3是一价烃基,R4是二价烃基或式-CxH2x-O的聚氧化烯基)nCxH2x-,x是2-4,n是正的 整数和b为1或2。