LUBRICATING OILS HAVING IMPROVED FRICTION STABILITY

A lubricating oil composition is provided to improve rubbing stability achieving excellent stability by acylating a plurality of second amino radicals existing in the friction modifier in case that one or more second amino radicals exist in a polyamine chain. A lubricating oil composition includes a...

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Bibliographische Detailangaben
Hauptverfasser:	GORDA KEITH R, NOLES JR. JOE R, WATTS RAYMOND F, COGEN KERRY L
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LUBRICANTS LUBRICATING COMPOSITIONS METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MONOXIDE USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:	A lubricating oil composition is provided to improve rubbing stability achieving excellent stability by acylating a plurality of second amino radicals existing in the friction modifier in case that one or more second amino radicals exist in a polyamine chain. A lubricating oil composition includes a base lubricating oil, one or more oil soluble phosphorus-containing compounds and one or more polyalkylene polyamine friction modifiers. The hydrocarbyl substituent includes a carbon atom of 6 to 30.