Pneumatic tires containing a composite belt
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United States of America Patent
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Apr 13, 1993
Issued Date -
N/A
app pub date -
Jul 20, 1992
filing date -
Apr 19, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved reinforcing belt is provided for a pneumatic tire. In one embodiment, a composite belt is formed by bonding together a plurality of resin impregnated plies. Each ply is further formed from cords having a high extensional modulus of elasticity and a high tenacity which reinforce a matrix of semi-rigid resin. Preferably, the resin is cured or formed in situ during the curing of the tire in which the plies are placed. In another embodiment, a structural separator having a high resistance to compression is bonded to and between at least two of the plies.
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