RUBBER COMPOSITION FOR COATING FIBER AND PNEUMATIC TIRE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide high hardness, low heat generation property and good adhesiveness with a fiber to a rubber coating the fiber which is an organic reinforcement fiber (textile) used for reinforcing a carcass layer, a belt cover layer or the like of a pneumatic tire.SOLUTION: The above described problem is solved by a rubber composition for coating a fiber by blending 100 pts.mass of a diene rubber containing a natural rubber and/or a synthetic isoprene rubber of 30 to 100 pts.mass and a butadiene rubber of 0 to 50 pts.mass, 30 to 80 pts.mass of carbon black having nitrogen adsorption specific surface (NSA) of 90 m/g or less and 0.1 to 10 pts.mass of a compound having a structure of a quinone compound and sulfonic acid or salts hereof in a molecule and/or a compound having the structure of the quinone compound and thiosulfuric acid or salts thereof in a molecule.SELECTED DRAWING: None