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Process for improving the cured adhesion of a precured compound to an uncured rubber compound
Process for improving the cured adhesion of a precured compound to an uncured rubber compound
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机译:改善预固化胶料与未固化橡胶胶料的固化粘合力的方法
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摘要
The present invention relates to a process for improving the cured adhesion of at least two rubber components which contact each other in a pneumatic tire. Prior to vulcanization of the pneumatic tire, one of the components is a precured rubber compound and the other is an uncured rubber compound. The process involves using a precured rubber compound comprising from 40 to 100 parts by weight of natural rubber or emulsion polymerized styrene-butadiene copolymer rubber containing .5 to 3 phr of a fatty acid, precipitated silica and no fatty acid other than contained in the natural rubber or emulsion polymerized styrene-butadiene rubber.
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