Provided are a tread rubber composition and a pneumatic tire, which exhibit excellent wet grip performance when thermally damaged. A tread rubber composition having acetone extractable contents before and after heat aging (denoted by "AEf" and "AEo", respectively) that satisfy the following relationships 1) and 2):AEf≥16.0%;AEo/AEf×100≥95%.
TREAD RUBBER COMPOSITION AND PNEUMATIC TIRE
2020-03-12
Patent
Elektronische Ressource
Englisch