LUBRICATING OIL COMPOSITIONS

A crankcase lubricating oil composition comprises an oil of lubricating viscosity, in a major amount, and, in respective minor amounts, a boron-containing additive and one or more co-additives, wherein the lubricating oil composition has greater than 200 ppm by mass of boron, less than 600 ppm by ma...

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Bibliographische Detailangaben
Hauptverfasser:	CHUNG, SIMON SIU MING, ROBSON, ROBERT, BROWN, ALISDAIR J, ARROWSMITH, STEPHEN, GLYDE, ROGER W
Format:	Patent
Sprache:	eng ; fre
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 crankcase lubricating oil composition comprises an oil of lubricating viscosity, in a major amount, and, in respective minor amounts, a boron-containing additive and one or more co-additives, wherein the lubricating oil composition has greater than 200 ppm by mass of boron, less than 600 ppm by mass of phosphorus and less than 4000 ppm by mass of sulfur, based on the mass of the oil composition. Such compositions demonstrate provide improved wear performance. Composition d'huile lubrifiante pour carter de moteur comprenant une huile de viscosité de lubrification, dans une proportion majoritaire, et, dans des quantités minoritaires respectives, un additif contenant du bore et un ou plusieurs coadditifs, la composition d'huile lubrifiante comprenant plus de 200 ppm en masse de bore, moins de 600 ppm en masse de phosphore et moins de 4000 ppm en masse de soufre, par rapport à la masse de la composition d'huile. De telles compositions démontrent et confèrent une performance d'usure améliorée.