Lithium complex grease with extended lubrication life
AssigneeExxon Research & Engineering Co.
InventorDavid Leslie Andrew
Life of this patent
Estimating the term…
Abstract
A lithium complex grease of extended lubricating life and possessing enhanced high temperature antioxidancy comprises a major portion of a base oil stock of lubricating viscosity and a minor mount of a lithium complex soap thickener, dilithium salicylate and a thiadiazole.
Claims19
A grease composition of extended lubricating life and improved high temperature antioxidancy comprising a major amount of a basestock oil of lubricating viscosity and a minor amount of a complex lithium soap thickener, a lithium salt of a C.sub.3 -C.sub.14 hydroxy carboxylic acid wherein the OH group is attached to a carbon atom that is not more than 6 carbon atoms removed from the carbon of the carboxyl group and a thiadiazole.
A method for extending the lubricating life and improving the high temperature antioxidancy of a lithium complex grease comprising a major amount of a base stock of lubricating viscosity and a minor amount of a complex lithium soap thickener by adding to the grease a lithium salt of a C.sub.3 -C.sub.14 hydroxy carboxylic and wherein the OH group is attached to a carbon atom that is not more than 6 carbon atoms removed from the carbon of the carboxyl group and a thiadiazole.
Dependencies are inferred from the claim text.