AUTOMATIC TRANSMISSION FLUID COMPOSITIONS WITH IMPROVED VISCOMETRIC PROPERTIES

This invention provides a composition and method for producing partial synthetic automatic transmission fluid composition having improved shear stability and low temperature properties whereby the automati c transmission fluid composition beside a natural lubricating oil, a synthetic lubricating oil...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WATTS, RAYMOND FREDERICK, BLOCH, RICARDO ALFREDO
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:	This invention provides a composition and method for producing partial synthetic automatic transmission fluid composition having improved shear stability and low temperature properties whereby the automati c transmission fluid composition beside a natural lubricating oil, a synthetic lubricating oil, a seal swelling agent and a friction modifier also contains a specific amount of a flow improver which is a selected polymer with a specific weight average molecular weight and which composition is devoid of polymeric high molecular weight viscosity modifiers.