Light weight tire including polybenzazole fibers
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United States of America Patent
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Sep 7, 1999
Grant Date -
N/A
app pub date -
Jul 10, 1995
filing date -
Feb 9, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A tire includes polybenzazole (PBZ) fibers, preferably either polybenzoxazole (PBO) or polybenzothiazole (PBT) fibers which are liquid-crystalline. The PBZ fibers can be incorporated into either the carcass of the tire, the reinforcing belts, or both. Preferably the PBZ fibers have a) a tensile strength of at least 4.0 GPa; b) a tensile modulus of at least 140 GPa; and c) an average void diameter of 25 .ANG. or less.
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