Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2006-12-20
2011-12-20
Seidleck, James J (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S394000, C524S397000, C524S400000, C525S305000, C525S088000, C525S098000, C525S099000
Reexamination Certificate
active
08080603
ABSTRACT:
Curable elastomer compositions and cured and/or curable articles made therefrom, the curable elastomer composition comprising an essentially unsaturated rubber elastomer, between 0.5 and 25 phr of a metal salt of a carboxylic acid, an effective amount of a peroxide curing agent for curing the elastomer composition and between 0.1 and 10. phr of a hysteresis-decreasing multifunctional curing coagent that decreases the hysteresis of the cured elastomer composition, wherein the hysteresis is measured using a rotorless shear rheometer as a loss tangent at 150° C., 41.85% strain and 10 Hz. The hysteresis of such a cured composition may decrease by at least 15% or alternatively, by at least 25%. The elastomer is useful in tires including, for example, the sidewall supports, the carcass reinforcement and the tread.
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Campigotto Frank J.
Fugman Kurt J.
Michelin & Recherche et Technique S.A.
Remick E. Martin
Seidleck James J
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