RUBBER COMPOSITION FOR TIRE, AND PNEUMATIC TIRE

摘要

PROBLEM TO BE SOLVED: To easily obtain a rubber composition for tires improved in abrasion resistance with low rolling resistance and wetting performance made compatible with each other in good balance, and to provide a pneumatic tire using the composition. SOLUTION: The rubber composition for tires is obtained by compounding 100 pts. wt. of the main rubber component, i.e. two kinds of diene rubbers differing in glass transition temperature from each other with 40-120 pts. wt. of carbon black and 1-20 pts. wt. of a low-molecular weight polymer having a functional group interacting with the carbon black on the molecular chain end and having a polymer structure similar to the diene rubber of lower glass transition temperature. COPYRIGHT: (C)2005,JPO&NCIPI