Grafted polymer with soot handling properties
AssigneeAfton Chemical Corporation
InventorsSheng Jiang, Arturo Carranza
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Abstract
The present disclosure relates to oxazoline modified lubricant additives that have dispersant properties and lubricating oil compositions comprising said dispersant lubricant additives. The disclosure also relates to the use of lubricant compositions comprising the additives of the disclosure for improving the soot or sludge handling characteristics of an engine lubricant composition, while minimizing the deterioration of engine seals.
Claims23
A multi-functional olefin copolymer viscosity modifier comprising the reaction product of (i) an amine-functionalized acylated olefin copolymer including one or more primary and/or secondary aryl amines, one or more primary and/or secondary alkyl amines, or mixtures thereof and (ii) an oxazoline or derivative thereof;
- and wherein the oxazoline or derivative thereof is a capping agent for a nitrogen of the primary and/or secondary amines.
A lubricant comprising:
- a major amount of base oil of lubricating viscosity;
- and
- a minor amount of a multi-functional olefin copolymer viscosity modifier comprising the reaction product of (i) an amine-functionalized acylated olefin copolymer including one or more primary and/or secondary aryl amines, one or more primary and/or secondary alkyl amines, or mixtures thereof and (ii) an oxazoline or derivative thereof and wherein the oxazoline or derivative thereof is a capping agent for a nitrogen of the primary and/or secondary amines.
Dependencies are inferred from the claim text.