Patent ID: 6588470
Filing Date: 2003-07-08
Classification: B60C,Y10T

Abstract:
A pneumatic tire comprising a tread containing a short fiber Aâ€² formed by the fibrillation of a short fiber A whose cross section takes a sea-island structure essentially composed of at least two polymers,wherein the ratio b/a of the tire circumferential modulus b of the tread to the tire radial modulus a thereof is adjusted to 1.2 or above by incorporating said short fiber Aâ€² formed by the fibrillation of the above short fiber A into the tread rubber in a proportion of 0.5 to 15 parts by weight per 100 parts by weight of the rubber and orientating the short fiber Aâ€² in a tire circumferential direction, and the groove area ratio of the tread is adjusted to 30 to 40%.