LUBRICANT COMPRISING A MIXTURE OF AN OLEFIN-ESTER COPOLYMER WITH AN ETHYLENE ALPHA-OLEFIN COPOLYMER
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United States of America Patent
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Issued Date -
Aug 27, 2015
app pub date -
Sep 17, 2013
filing date -
Sep 24, 2012
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Abandoned
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Abstract
A lubricant composition comprising an oil of lubricating viscosity having a kinematic viscosity at 100° C. of less than 15 mm2/s; and an esterified copolymer with a backbone comprising units derived from (i) an α-olefin monomer of at least 6 carbon atoms and (ii) an ethylenically unsaturated carboxylic acid or derivative thereof, optionally containing nitrogen functionality; and an ethylene α-olefin copolymer comprising greater than 5 weight percent ethylene monomer units, exhibits good operating efficiency when used to lubricate a mechanical device.
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