Power transmitting fluids with improved materials compatibility

A power transmitting fluid comprises a major amount of a lubricating oil and a minor amount of an additive composition which comprises (a) a friction modifier of formula R1 C(=O) Z C(=O) R2, (b) an oil-soluble phosphorus compound, and (c) an ashless dispersant; where R1 and R2 are linear or branched...

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Hauptverfasser:	Keith Raymond Gorda, Raymond F Watts
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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creator	Keith Raymond Gorda Raymond F Watts
description	A power transmitting fluid comprises a major amount of a lubricating oil and a minor amount of an additive composition which comprises (a) a friction modifier of formula R1 C(=O) Z C(=O) R2, (b) an oil-soluble phosphorus compound, and (c) an ashless dispersant; where R1 and R2 are linear or branched (un)saturated hydrocarbyl groups having 8-20 carbon atoms (e.g. derived from oleic or stearic acids), and Z is a polyoxyalkylene segment or a polyoxyalkylated alkyl amine segment (e.g. derived from PEG). The friction modifiers provide the fluid with improved fluoroelastomer seal compatilbility and enhanced copper corrosion compatibility.
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subjects	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
title	Power transmitting fluids with improved materials compatibility
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