| CPC C08L 9/06 (2013.01) [B60C 1/0016 (2013.01); C08L 2201/08 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01); C08L 2207/324 (2013.01)] | 2 Claims |
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1. A pneumatic tire, comprising a tread comprising a tread rubber composition, the 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):
1) AEf≥16.0%; and
2) AEo/AEf×100≥ 95%; wherein
the acetone extractable content is determined by a method for measuring acetone extractable content according to JIS K6229:2015, and
the heat aging is carried out under heat aging conditions of 80° C. for 168 hours in accordance with JIS K6257:2010,
wherein in the tread rubber composition, the amount of styrene-butadiene rubber based on 100% by mass of rubber component is 80 to 95% by mass, and the amount of polybutadiene rubber based on 100% by mass of rubber component is 5 to 20% by mass,
wherein the tread rubber composition comprises silica, and at least one of a liquid polymer or a resin, and
a combined amount of the liquid polymer and the resin per 100 parts by mass of the rubber component in the tread rubber composition is 30 to 100 parts by mass.
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