LUBRICANT OIL, FRICTION MEMBER, AND GEAR-TYPE DIFFERENTIAL WITH DIFFERENTIAL LIMITING FUNCTION
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United States of America Patent
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app pub date -
Dec 17, 2014
filing date -
Nov 19, 2009
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Abandoned
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Abstract
A lubricating oil according to the present invention is a lubricating oil used in a friction-type driving force transmission apparatus, the lubricating oil including: at least one of two additives; a first additive selected from at least one of an aliphatic amine having a saturated or unsaturated hydrocarbon group with a carbon number of 12 to 20 (Chemical Formula 1) and an aliphatic amine ethylene oxide adduct having a saturated or unsaturated hydrocarbon group with a carbon number of 12 to 20 (Chemical Formula 2); and a second additive selected from at least one of a phosphorous acid diester having a saturated or unsaturated hydrocarbon group with a carbon number of 12 to 20 (Chemical Formula 3) and a phosphorous acid monoester having a saturated or unsaturated hydrocarbon group with a carbon number of 12 to 20 (Chemical Formula 4).
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