Pneumatic tire

Details Pneumatic tire Pneumatic tire

2011-04-19

2011-04-19

Fischer, Justin (Department: 1747)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S548000, C152S556000

Reexamination Certificate

active

07926531

ABSTRACT:
A pneumatic tire includes a carcass ply with carcass cords. The carcass cords comprise high tenacity vinylon fiber, polyethylene naphthalate fiber or polyalylate fiber. Viscoelasticity characteristics per one cord at 120° C. of the carcass cord satisfy the following equations (1) to (3):in-line-formulae description="In-line Formulae" end="lead"?B>0  (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?B≦0.0000437×A+0.042857  (2)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?B≦−0.00003636×A+0.163636  (3)in-line-formulae description="In-line Formulae" end="tail"?(wherein “A” represents a product of complex modulus E*(N/cm2) and cross-sectional area “S” (cm2) of cord), and “B” represents a loss tangent tanδ).

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