| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain high steering stability, while keeping low rolling resistance performance. <P>SOLUTION: In a pneumatic tire 1 in which a belt layer 7 is arranged, which has at least a pair of crossing belts 72, 73 having each cord arranged at a prescribed angle with respect to a tire circumferential direction on the outside in the tire radial direction of a carcass layer 6, and has a reinforcement belt 71 having a cord having a larger angle to the tire circumferential direction than each cord of the crossing belts on the inside in the tire radial direction of the crossing belts, a rubber composition having a ≥0.2 and <3.0 pts. wt master batch comprising a para-series aramid fiber and stearic acid with respect to 100 pts. wt of natural rubber or vulcanizable rubber comprising at least two combinations between natural rubber, synthetic polyisoprene rubber, synthetic polybutadiene, and styrene-butadiene rubber, is used for coat rubber for coating a cord of at least one layer of the belt layer 7. <P>COPYRIGHT: (C)2012,JPO&INPIT |
