Lubricant Compositions Comprising Ethylene Propylene Copolymers and Methods for Making Them
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United States of America Patent
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Issued Date -
Oct 24, 2013
app pub date -
Mar 12, 2013
filing date -
Apr 19, 2012
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Abandoned
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Abstract
Lubricant compositions, as well as processes for their formulation, are provided. The lubricant compositions comprise an oil basestock and one or more blocky ethylene propylene copolymers. The copolymers are preferably prepared using metallocene catalyst systems but without using a chain shuttling agent.
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