RUBBER COMPOSITION FOR TIRE INNER LINER AND PNEUMATIC TIRE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To satisfy requests of air permeation resistance or crack growth resistance, further high hardness from a point of view for enhancing operation stability and also improving heat generation for an inner liner mainly containing a butyl-based rubber excellent in air permeation prevention performance and arranged on an inner surface of a tubeless pneumatic tire.SOLUTION: The above described problem is solved by a rubber composition for tire inner liner which is obtained by blending 100 pts.mass of a rubber component containing a butyl-based rubber of 50 pts.wt. or more and a diene-based rubber of 5 pts.wt. or more, 25 to 75 pts.mass of carbon black having nitrogen adsorption specific surface area (NSA) of 25 to 95 m/g and for example 0.1 to 10 pts.mass of anthraquinone sodium sulfonate.SELECTED DRAWING: None