| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of enhancing the run-flat durability without impairing the rolling resistance and the ride quality during the normal travel. SOLUTION: The pneumatic tire comprises a bead core, a carcass layer, a tread rubber layer, an inner liner, a side reinforcing layer and a bead filler. The rubber composition contains (A) rubber component of 100 pts.mass, and (B) carbon black of ≥55 pts.mass, and in the physical properties of vulcanized rubber, the 100% elongation elasticity (M100) at 25°C is ≥10 MPa, and Σ value of tangent loss tanδ at 28-150°C is ≤6.0. COPYRIGHT: (C)2009,JPO&INPIT
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