| 摘要 |
Addition-crosslinking silicone rubber mixtures and a process for coating substrate surfaces and shaped composites with this mixture are disclosed. The addition-crosslinking silicone rubber mixture comprises at least the following constituents:(a) a cyclic, linear or branched organopolysiloxane which contains on average at least two alkenyl groups per molecule and has a viscosity of from 0.01 to 30,000 Pas;(b) a cyclic, linear or branched organohydrogenpolysiloxane which may contain dimethylsilyloxy groups and preferably has on average at least two SiH groups per molecule; and(c) a catalytically effective amount of the compound cis-dichlorobis(styrene) platinum(II), which may have been dissolved in a suitable organic solvent,where the molar ratio of the SiH groups present in the mixture to the Si-bonded alkenyl groups present in the mixture is at least 1.5, preferably from about 1.5 to 4.5 and more preferably from about 1.8 to about 2.5.
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