Run-flat tire with tread reinforcing layer

Details Run-flat tire with tread reinforcing layer Run-flat tire with tread reinforcing layer

1998-10-20

2000-11-07

Johnstone, Adrienne C.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152516, 152532, 152533, 152537, 152549, 152554, 152564, B60C 902, B60C 918, B60C 920, B60C 1500, B60C 1700

Patent

active

061422045

ABSTRACT:
A run-flat tire comprises a tread portion, a pair of bead portions, a pair of sidewall portions, a carcass comprising at least one carcass ply extending between the bead portions, a belt disposed radially outside the carcass in the tread portion, and a tread reinforcing layer disposed between carcass plies or alternatively between the carcass and belt, the tread reinforcing layer made of a high elastic modulus rubber compound having a complex elastic modulus E* of from 10 to 30 MPa, a thickness t of from 0.8 to 2.5 mm, and an axial width WA of 0.7 to 1.0 times the tread width TW of the tire.

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