VULCANIZED RUBBER COMPOSITION FOR TIRE

摘要

PROBLEM TO BE SOLVED: To provide a vulcanized rubber composition for tire containing a thermally expandable microcapsule having more improved on-ice frictional performance than conventional level.SOLUTION: There is provided a vulcanized rubber composition for tire manufactured by blending 1 to 15 pts.wt. of a thermally expandable microcapsule with 100 pts.wt. of diene rubber containing natural rubber and/or butadiene rubber, containing hollow particles formed by expansion of the thermally expandable microcapsule during vulcanization molding and having particles with the particle diameter of 50μm or less in the hollow particles of 1 to 15% and particles with the particle diameter of 140μm or more of 10% or more.