Runflat tire

Details Runflat tire Runflat tire

2006-12-12

2010-06-22

Fischer, Justin (Department: 1791)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S520000

Reexamination Certificate

active

07740037

ABSTRACT:
A runflat tire having an improved ride comfort performance without impairing the runflat durability, and comprising a carcass6and sidewall-reinforcing rubber layers9having a crescent-shaped cross section disposed axially inward of carcass6in sidewall portion3, wherein each sidewall-reinforcing rubber layer9comprises at least a radially outermost first rubber portion9aand a second rubber portion9bwhich is contiguous to the first rubber portion9aand extends toward a bead portion4, and the second rubber portion9bhas a complex modulus E*2of at least 1.1 times the complex modulus E*1of the first rubber portion9a.

REFERENCES:
patent: 5309970 (1994-05-01), Kawabata et al.
patent: 7255146 (2007-08-01), Kirby
patent: 8-337101 (1996-12-01), None
patent: 2002-211216 (2002-07-01), None
patent: 2002-301911 (2002-10-01), None
patent: 2006-264492 (2006-10-01), None

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