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    • 50. 发明授权
    • Method for the preparation of an integral rubber article having
electrically insulating and conductive parts
    • 制备具有电绝缘和导电部件的整体橡胶制品的方法
    • US5053167A
    • 1991-10-01
    • US366422
    • 1989-06-15
    • Toshiyuki Kawaguchi
    • Toshiyuki Kawaguchi
    • B32B25/20C08J5/12H01B1/24H01B3/46
    • C08J5/12B32B25/20H01B1/24H01B3/46C08J2383/04
    • A method is disclosed for the preparation of an integral silicone rubber article having an electrically insulating part and an electrically conductive part, in which the adhesive bonding between the two parts is greatly enhanced and each part exhibits a remarkably small permanent compression set. The method comprises the steps of preparing a first cured silicone rubber body from a first silicone rubber composition and then curing a second silicone rubber body in contact with the first cured silicone rubber body under specified conditions while either one of the first and the second silicone rubber composition contains a substantial amount of a carbon black to give conductivity. Both of the two compositions comprises a non-acyl type organic peroxide, e.g., dicumyl peroxide, as a curing agent of the organopolysiloxane. Characteristically, either one or both of the two composition, of which the organopolysiloxane has at least two silicon-bonded vinyl groups in a molecule, comprise, in addition to the above mentioned organic peroxide, a combination of an organohydrogenpolysiloxane and a platinum catalyst so that the composition or compositions are curable in two ways of, one, the peroxide-induced crosslinking and, the other, the platinum-catalyzed addition reaction between the silicon-bonded vinyl groups and silicon-bonded hydrogen atoms.
    • 公开了一种用于制备具有电绝缘部分和导电部件的整体硅橡胶制品的方法,其中两部分之间的粘合剂粘合力大大增强,并且每个部件都显示出非常小的永久压缩永久变形。 该方法包括以下步骤:从第一硅橡胶组合物制备第一固化硅橡胶体,然后在规定条件下固化与第一固化硅橡胶体接触的第二硅橡胶体,同时第一和第二硅橡胶 组合物含有大量的炭黑以产生导电性。 两种组合物都包含作为有机聚硅氧烷的固化剂的非酰基型有机过氧化物,例如过氧化二异丙苯。 特征地,除了上述有机过氧化物之外,有机聚硅氧烷在分子中具有至少两个与硅键合的乙烯基的两种组合物中的一种或两种包含有机氢聚硅氧烷和铂催化剂的组合,使得 组合物或组合物可以以两种方式固化,一种是过氧化物诱导的交联,另一种是与硅键合的乙烯基和与硅键合的氢原子之间的铂催化的加成反应。