RUBBER COMPOSITION FOR TIRE TREAD WITH HIGH GASOLINE MILEAGE

摘要

PURPOSE: A rubber composition for a tire tread is provided, to improve the gasoline mileage by employing carbon black with the rotation resistance and the abrasion resistance improved by the control of an aggregate size. CONSTITUTION: The rubber composition comprises 100 parts by weight of a rubber; 30-60 parts by weight of carbon black which contains 22% or less of the carbon black with an aggregate size of 150 nm or more; and an additive. Preferably the carbon black is surface-modified one.