RUBBER COMPOSITION FOR TREAD OF HEAVY-LOAD TIRE FOR ICE SNOW ROAD AND HEAVY-LOAD TIRE FOR ICE SNOW ROAD USING THE SAME

摘要

PPROBLEM TO BE SOLVED: To provide a rubber composition for a tread of a heavy-load tire for an ice snow road improving snow sticking resistance on the tire tread surface and thereby improving performances on the ice snow without deteriorating heat buildup properties and fatigue resistance. PSOLUTION: The rubber composition for the tread of the heavy-load tire for the ice snow road is obtained by compounding 100 pts.wt. of diene rubber consisting essentially of natural rubber and/or butadiene rubber with 30-70 pts.wt. of the total amount of carbon black and silica having ≥90 mSP2/SP/g NSB2/SBSA (nitrogen adsorption specific surface area) and 3 pts.wt. of an ultrahigh-molecular weight polyethylene. PCOPYRIGHT: (C)2006,JPO&NCIPI