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US 10,704,006 B2Granted
Lubricating composition containing an antiwear agent
AssigneeThe Lubrizol Corporation
InventorsWilliam R. S. Barton, Mark C. Davies, Michael R. Sutton, Matthew D. Gieselman, Christopher L. Friend, Ewan E. Delbridge, Patrick E. Mosier
Life of this patent
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Abstract
The invention provides a lubricating composition containing an antiwear agent and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in an internal combustion engine, or a driveline device.
Claims17
A lubricating composition comprising an oil of lubricating viscosity and 0.1 wt % to 0.5 wt % a non-metallic cationic pnictogen salt of a hydroxy-carboxylic acid, or mixtures thereof,
- wherein the non-metallic cationic pnictogen salt of a hydroxy-carboxylic acid is a quaternary ammonium salt of a hydroxy-carboxylic acid,
- wherein the quaternary ammonium salt is derived from an amine comprising alkyl groups having 3 to 10 carbon atoms, and
- wherein the hydroxy-carboxylic acid is selected from the group consisting of glycolic acid, tartaric acid and mixtures thereof.
Dependencies are inferred from the claim text.