The not yet building a bridge rubber which possesses double bond in polyfunctional isoshianeto and

摘要

The not yet building a bridge rubber, although rubber vulcanization ones or the various rubber formation items are produced, be able to use building a bridge rubber particle and multi functionality isoshianeto and the rubber compound of this invention which designates poly- all as the base, in this case, any vulcanization things with the machine quality which is superior have the big chip resistance difference with of the 70C and the 23C.