abstract |
PROBLEM TO BE SOLVED: To provide a rubber composition having excellent abrasion resistance, heat generation properties, rebound resilience, mechanical strength, antistatic property, etc., and good processability when silica is compounded. To provide a novel polyether copolymer useful as a raw material for a rubber composition having such excellent properties. SOLUTION: Mooney viscosity (ML 1 + 4 , ML 1 + 4 , 100 ° C.) is in the range of 70 to 150, and a rubber composition containing a diene rubber and the polyether copolymer. |