Modified rubber compositions containing aromatic six-membered heterocyclic nitrogen-containing groups
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United States of America Patent
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May 22, 1990
Issued Date -
N/A
app pub date -
Aug 19, 1988
filing date -
Sep 21, 1984
priority date (Note) -
Expired
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Abstract
Modified rubber compositions are described which when cured exhibit high rebound and reduced hysteresis. The uncured rubber compositions are prepared by reacting (a) at least one polymer rubber containing an alkali metal and carbon-carbon unsaturation with (b) at least one aromatic six-membered heterocyclic nitrogen-containing compound substituted with a group capable of reacting with the alkali metal of the polymer rubber. Filled vulcanizates made by vulcanizing a composition comprising at least one of the above-described uncured modified rubber compositions and one or more reinforcing fillers also are described. When tire treads are prepared utilizing the filled vulcanizates of the present invention, the tires exhibit improved properties such as reduced running temperature and rolling resistance.
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