| 摘要 |
PURPOSE:To make the surface of a vulcanized rubber molding lowly frictional and nonsticky without detriment to the inherent elasticity of rubber, by surface- treating the molding with an alkylhydrogensiloxane or an arylhydrogensiloxane. CONSTITUTION:An alkylhydrogensiloxane or arylhydrogensiloxane of the formula (wherein R1 is methyl, ethyl, phenyl or the like, R2 is H, methyl, ethyl or the like, R3 is methyl, ethyl or the like, n>=2 and m is 0 or a positive integer) is applied as such or after dilution with a solvent such as benzene or carbon tetrachloride to the surface of a vulcanized rubber molding by brushing, spraying, immersion or the like and dried by heating at a temperature of about 50-200 deg.C for about 10min-24hr to form a hydrogensiloxane film of a thickness of the order of mum on the surface of the molding. |
