Lubricant composition containing the reaction product of an olefinic compound and an alkoxylated-amine-phosphite
AssigneeMobil Oil Corporation
InventorsLinda A. Benjamin, Andrew G. Horodysky, Derek A. Law, Shi-Ming Wu
Life of this patent
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Abstract
Alkoxylated- or polyalkoxylate-amine-phosphite derived olefin adducts are superior as lubricating fluid media and as multifunctional additives with internal synergistic antioxidant and extreme pressure/antiwear properties for both mineral and synthetic lubricating oils as well as fuels.
Claims30
A lubricant composition comprising a major amount of an oil of lubricating viscosity or grease prepared therefrom and a minor amount of a multifunctional antioxidant, friction reducing and extreme pressure/antiwear additive comprising the reaction product of an alkoxylated- or polyalkoxylated-amine-phosphite and an olefinic compound.
A process for improving lubricity and the antiwear antioxidant and extreme-pressure properties of a base oil of lubricating viscosity or grease prepared therefrom comprising adding an alkoxylated or polyalkoxylated-amine-phosphite to an olefinic compound and thereafter heating the obtained reaction mixture to reflux for about four hours at a temperature of about 50.degree. C. to about 200.degree. C. at about ambient pressure thereby producing a reaction product and thereafter adding said reaction product to said base oil in an amount of from about 0.001 to less than 100% by weight of the total composition.
A process for improving the fuel economy of an internal combustion engine comprising contacting the moving parts thereof with the reaction product of an alkoxylated or polyalkoxylated amine phosphite with an olefinic compound which product of reaction is contained in an oil of lubricating viscosity.
A lubricant composition comprising an oil of lubricating viscosity or grease prepared therefrom and from about 0.001 wt % to less than 100 wt % of the reaction product of an alkoxylated- or polyalkoxylated-amine-phosphite and an olefinic compound, said reaction product having multi-functional antioxidant friction reducing and extreme pressure/antiwear characteristics.
Dependencies are inferred from the claim text.