Rubber composition containing rubbery polymer and modified liquid polymer

摘要

A rubber composition comprising a rubbery polymer and a modified liquid polymer. The modified liquid polymer is obtained by reacting a liquid polymer having at least one carbon-carbon double bond in the molecule with an organic compound having the group -CH=N- and an organic acid halide having the group -COX where X is halogen, in the presence of a Friedel-Crafts catalyst.