RUBBER COMPOSITION FOR TIRE THREAD

摘要

Disclosed is a rubber composition for a tire thread, which comprises (A) an unvulcanized diene rubber and (B) (i) a regenerated diene rubber or (ii) a valcanized and regenerated diene rubber in an amount of 0.5 to 5 parts by weight in terms of a rubbery component in the regenerated diene rubber (i) or the valcanized and regenerated diene rubber (ii) relative to 100 parts by weight of the unvulcanized diene rubber (A), wherein the regenerated diene rubber (i) contains a bound sulfur in an amount of 5.0% by weight in terms of a rubbery component and the valcanized and regenerated diene rubber (ii) contains a bound sulfur in an amount of 5.0% by weight or less in terms of a rubbery component. The rubber composition has excellent wear resistance, break resistance and controllability on ice.