REACTIVE ESTERS AS PLASTICIZERS FOR ELASTOMERS
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United States of America Patent
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Issued Date -
Apr 15, 2010
app pub date -
Oct 14, 2008
filing date -
Oct 14, 2008
priority date (Note) -
Abandoned
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Abstract
The present disclosure is directed to plasticized elastomer compositions and methods of preparing plasticized elastomers. The plasticized elastomer compositions comprise an elastomer, and an unsaturated linear or branched dicarboxylic acid diester plasticizer. The compositions are formed by combining the elastic polymer and reactive ester plasticizer with a curing agent to react at least 5% by weight of the diester plasticizer to the elastic polymer. The elastomer includes natural and synthetic rubbers, such as nitrile butadiene rubber, hydrogenated nitrile butadiene rubber, chlorinated polyethylene rubber, and ethylene propylene diene monomer rubber. The plasticized elastomer compositions disclosed herein provide improved solvent immersion properties, and are useful, for example, for hoses, belts, conveyor belts, motor mounts, gaskets, automotive drive train belts, including transmission belts, roofing compounds, and the like.
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