(Vinyl sulfoxide)-capped elastomers and compositions containing them having reduced hysteresis properties
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United States of America Patent
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Jan 4, 1994
Grant Date -
N/A
app pub date -
Dec 30, 1991
filing date -
Dec 30, 1991
priority date (Note) -
Expired
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Abstract
Poly (vinyl sulfoxide)- and (vinyl sulfoxide)-capped elastomers made by capping a lithium terminated elastomer (such as a lithium terminated styrene-butadiene rubber) with more than 0.5 equivalent of vinyl sulfoxide monomer provide compounded elastomer vulcanizates of lowered hysteresis characteristics. Such low hysteresis vulcanizates are useful in making road-contacting tread components of pneumatic tires. Tires with such tread components exhibit low rolling resistance and reduced heat build-up during use.
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