| 摘要 |
A runflat tire improved in durability which and increased in running distance and velocity at the time of puncture is provided. A side portion reinforcing layer (11) for a runflat tire, the layer being made of a rubber composition prepared by blending 0.1 to 50 parts by mass of a reinforcing material of polyparaphenylene terephthalamide based on 100 parts by mass of a rubber component comprising 20 to 80% by mass of a natural rubber and/or a polyisoprene rubber and 80 to 20% by mass of a polybutadiene rubber, and a runflat tire using the same. |
