BORON-CONTAINING LUBRICATING OIL EXHIBITING IMPROVED FRICTION STABILITY

PROBLEM TO BE SOLVED: To provide an additive composition useful for providing a lubricating oil, concretely a transmission fluid, for example, an automatic transmission fluid (ATF), a continuously variable transmission fluid (CVTF) and a double-clutch transmission fluid (DCTF) with excellent frictio...

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Bibliographische Detailangaben
Hauptverfasser:	GORDA KEITH R, RAYMOND F WATTS, NOLES JOE R JR, 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:	PROBLEM TO BE SOLVED: To provide an additive composition useful for providing a lubricating oil, concretely a transmission fluid, for example, an automatic transmission fluid (ATF), a continuously variable transmission fluid (CVTF) and a double-clutch transmission fluid (DCTF) with excellent friction stability, and more concretely, useful for providing the transmission fluid with excellent friction properties during high-speed clutch engagement. SOLUTION: The lubricating oil composition exhibiting excellent friction stability comprises a lubricating base oil, an oil-soluble source of phosphorus, and a defined friction-improving agent based on polyalkylene polyamine having been reacted with a borating agent which converts at least one secondary amino group into a corresponding boric acid ester or boric acid salt. COPYRIGHT: (C)2009,JPO&INPIT