Additive compositions with a friction modifier and a metal dialkyl dithio phosphate salt

摘要

A lubricating composition comprising a major amount of base oil and a minor amount of an additive package, wherein the additive package comprises: (A) a friction modifier component selected from:
(a) one or more a reaction products of an alcohol with a compound of the formula IV:;
and
(b) one or more compounds of the Formulae II-III:;
wherein R is a linear or branched, saturated, unsaturated, or partially saturated hydrocarbyl having about 8 to about 22 carbon atoms; R2 and R3 are independently selected from hydrogen, C1-C18 hydrocarbyl groups, and C1-C18 hydrocarbyl groups containing one or more heteroatoms; and X is an alkali metal, alkaline earth metal, or ammonium cation and n is the valence of cation X; and
(B) at least one metal dialkyl dithio phosphate salt.

主权项

1. An engine oil composition comprising a major amount of a base oil having at least 90% saturates and being selected from a Group II, Group III, Group IV and Group V base oil and mixtures thereof, and a minor amount of an additive package, wherein the additive package comprises:
(A) a friction modifier component selected from one or more compounds of the Formulae I-III: wherein R is a linear or branched, saturated, unsaturated, or partially saturated hydrocarbyl having about 8 to about 22 carbon atoms and R1 is hydrogen or a hydrocarbyl having from about 1 to about 8 carbon atoms, or a C1-C8 hydrocarbyl group containing one or more heteroatoms; wherein R is a linear or branched, saturated, unsaturated, or partially saturated hydrocarbyl having about 8 to about 22 carbon atoms and R2 and R3 are independently selected from hydrogen, C1-C18 hydrocarbyl groups, and C1-C18 hydrocarbyl groups containing one or more heteroatoms; and wherein R is a linear or branched, saturated, unsaturated, or partially saturated hydrocarbyl having about 8 to about 22 carbon atoms; and X is an alkali metal, alkaline earth metal, or ammonium cation and n is the valence of cation X; and (B) at least one metal dialkyl dithio phosphate salt; and wherein the engine oil composition is adapted for use as an engine oil, the engine oil composition has a phosphorus content of 50-1000 ppm and the engine oil composition contains 0.1 to 2.0 wt. % of the friction modifier component (A), based on a total weight of the composition, and when the friction modifier component is a compound of the formula (III), the engine oil composition comprises a major amount of a base oil having at least 90% saturates and being selected from a Group II, Group III and Group IV base oil and mixtures thereof.