Pneumatic tire

Details Pneumatic tire Pneumatic tire

2007-09-18

2007-09-18

Bellinger, Jason R. (Department: 3617)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S527000

Reexamination Certificate

active

10366658

ABSTRACT:
A pneumatic tire is provided which includes a carcass extending between bead portions, and a belt disposed radially outside the carcass in the tread portion. At least one of the carcass and belt includes a cord ply of a polyethylene-2,6-naphthalate fiber cord. The polyethylene-2,6-naphthalate fiber cord has a total denier number of from 2500 to 3600, a twist number of from 30 to 40 turns/10 cm, an initial stage modulus at 25 deg. C. in a range of from 50 to 65 gf/d, and a variation of the initial stage modulus at between 25 to 70 deg. C. which is not more than 20% in absolute value.

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