RUBBER COMPOSITION FOR TIRE BELT CUSHION AND PNEUMATIC TIRE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To satisfy requirements of low heat generation and crack growth resistance as large tension and compression stress are added to a belt cushion of a pneumatic tire during tire running as well as need of partial abrasion resistance.SOLUTION: There is provided a rubber composition for tire belt cushion by blending 100 pts.mass of a diene rubber, 25 to 45 pts.mass of carbon black having nitrogen adsorption specific area (NSA) of 35 to 85 m/g and 0.1 to 5 pts.mass of a compound having a structure of quinones and a structure of sulfonic acid or salts thereof in a molecule and/or a compound having a structure of quinones and a structure of thiosulfuric acid or salts thereof in a molecule.SELECTED DRAWING: None