| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition for an under tread and a wing which can achieve both of low fuel consumption properties and deterioration resisting performance, and a tire for a passenger car using them.SOLUTION: The rubber composition for an under tread comprises: modified natural rubber having a phosphorus content of ≤200 ppm; and an antiaging agent, and in which the content of the antiaging agent is ≥2 pts.mass to 100 pts.mass of the rubber component. |
