Friction modifiers for engine oil composition
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United States of America Patent
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Mar 19, 2002
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N/A
app pub date -
Dec 6, 2000
filing date -
Dec 6, 2000
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Expired
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Abstract
A lubricating oil composition which exhibits improved fuel economy and fuel economy retention which contains keto-amide and keto-ester friction modifiers formed by reaction or trans-esterification of alkyl acetoacetates. The trans-esterified products are also novel compositions of matter.
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