RUBBER COMPOSITION FOR TIRE BEAD FILLER, AND PNEUMATIC TIRE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a rubber composition for a tire bead filler with low viscosity having sufficient processability and making high modulus of elasticity and bending fatigue-resistance compatible, and a pneumatic tire using it. Ž

SOLUTION: In the rubber composition for the tire bead filler (6), 60-100 pts.mass of carbon black having a nitrogen adsorption specific surface area of 20-98 m2/g and 0.5-10 pts.mass of an esterified product of a styrene-maleic anhydride resin are formulated based on 100 pts.mass of a diene-based rubber. In the pneumatic tire, the rubber composition is used for the bead filler (6). Ž

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