▎ 摘　　要

NOVELTY - Rubber composition comprises graphene sonicated with alkanoic acid. USE - The composition is useful for run flat tire (claimed). ADVANTAGE - The composition contains graphene having high specific surface area, and improves stiffness and heat generation performance of tire. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for run flat tire (10) comprising insert rubber containing graphene sonicated with alkanoic acid. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the structure of the tire. Tire (10) Tread (100) Side wall unit (200) Bead unit (300) Carcass layer (400)