Back to results
US 9,540,585 B2Granted
Lubricating composition containing an antiwear agent
AssigneeThe Lubrizol Corporation
InventorsWilliam R. S. Barton, Matthew D. Gieselman
Life of this patent
Estimating the term…
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 a mechanical device such as an internal combustion engine, or a driveline device.
Claims19
A lubricating composition comprising an oil of lubricating viscosity and 0.01 to 5 wt % of a product obtained/obtainable by reacting:
- (i) a hydroxy-containing carboxylic compound, a phosphorylating agent, or reactive equivalents thereof, and optionally an alcohol wherein the hydroxy-containing carboxylic compound is derived from glycolic acid, malic acid, tartaric acid, citric acid, or mixtures thereof, and
- wherein the phosphorylating agent, or reactive equivalents thereof is POCl3, P2O5, P4O10, or polyphosphoric acid, and
- optionally (ii) reacting the product of (i) with an amine, or mixtures thereof.
Dependencies are inferred from the claim text.