A rubber composition containing a conjugated diene polymer.

摘要

A rubber composition having good physical properties such as breaking properties, wear strength and grip properties, and good processability at the same time is suitable for a high performance tire. A nitrogen-containing polymer with a weight average molecular weight of 70x10<4> to 250x10<4> is compounded with 60 to 200 phr of carbon black, a process oil comprising 30 to 250 phr of softener and/or 5 to 100 phr of liquid polymer, and not more than 60 parts of another polymer.