RUBBER COMPOSITION FOR TIRES AND PNEUMATIC TIRE

摘要

A rubber composition for a tire soft stiffener having improved crack resistance and low heat-buildup and containing (A) carbon black presenting specific particle size distribution behavior in an aggregate mass distribution curve, (B) bismaleimide, (C) alkylidene hydrazide, (D) disulfane, and (E) at least one compound selected from carbon black coupling agents comprising carboxylic hydrazides; and a heavy-duty tire using the rubber composition.