LUBRICANT COMPOSITION

A lubricant composition comprising a major amount of an oil of lubricating viscosity and a minor amount of: (A) an oil-soluble or oil-dispersible salt of a dihydrocarbylthiophosphoric acid, which acid is derivable from the reaction of a phosphorus sulfide and (I) compound (P) having at least two gro...

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Bibliographische Detailangaben
Hauptverfasser:	CHUNG, SIMON SIU MING, GILMORE, JANE, BROWN, ALISDAIR JAMES, GLYDE, ROGER WOODGATE, CASTLE, REBECCA, HARTLEY, ROLFE JOHN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LUBRICANTS LUBRICATING COMPOSITIONS METALLURGY ORGANIC CHEMISTRY 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 lubricant composition comprising a major amount of an oil of lubricating viscosity and a minor amount of: (A) an oil-soluble or oil-dispersible salt of a dihydrocarbylthiophosphoric acid, which acid is derivable from the reaction of a phosphorus sulfide and (I) compound (P) having at least two groups independently selected from hydroxyl (OH) and sulfhydryl (SH), wherein there is at least four, preferably at least five, atoms, separating two groups, preferably any two groups, in compound (P), or (II) a mixture of two or more compounds comprising compound (P) as defined in (I) and one or more compounds, wherein each or the compound has at least one group selected from hydroxyl (OH) and sulfhydryl (SH); and (B) an oil-soluble or oil-dispersible molybdenum compound. Such a composition has been found to demonstrate improved friction-reduci ng performance.