Lubricating Oil Composition
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United States of America Patent
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Issued Date -
Dec 24, 2009
app pub date -
Sep 11, 2007
filing date -
Sep 11, 2006
priority date (Note) -
Abandoned
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Abstract
The present invention involves the addition of an aspartic acid derivative and a fatty acid ester of a polyhydric alcohol to a base oil of, e.g., mineral oil or synthetic oil type. By including these additives, a lubricating oil composition having excellent rust-preventing properties, reduced friction coefficient and excellent energy-saving properties and so being suitable for industrial lubricating oils can be obtained. Also, by further adding an epoxy compound and by adding also a fatty acid amine, it is possible to obtain a lubricating oil composition even more endowed with rust-preventing properties and energy-saving properties.
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