Method of treating diene rubber and improved rubber compositions
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United States of America Patent
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Apr 23, 1985
Grant Date -
N/A
app pub date -
Jun 9, 1983
filing date -
Jun 9, 1983
priority date (Note) -
Expired
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Abstract
Treatment of diene rubber with a diketo compound, in which the keto groups are part of a six-carbon hydrocarbon ring containing carbon-to-carbon unsaturation, or a tautomer of the compound, is performed at temperatures above 130.degree. C. Rubber compositions treated in this manner exhibit increased green strength, decreased plasticity, and, when vulcanized, decreased hysteresis.
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