The Lubrizol Corporation

Jamal Kassir

Paul E Adams

William R S Barton

Lisa Blanazs

Ewan E Delbridge

Yanshi Zhang

Daniel J Saccomando

Stephen J Cook

Michael R Sutton

Paul R Vincent

William RS Barton

Lisa Blanasz

A lubricant composition comprising an oil of lubricating viscosity and 0.01 to 5 percent by weight of a substantially sulfur-free alkyl phosphate amine salt, where at least 30 mole percent of the phosphorus atoms are in an alkyl pyrophosphate salt structure, exhibits good antiwear performance. In the phosphate amine salt, at least 80 mole percent of the alkyl groups are typically secondary alkyl groups of 3 to 12 carbon atoms.

Alkyl phosphate amine salts for use in lubricants

Lubricant with high pyrophosphate level

Growing community of inventors

Dearborn, MI, United States of America

Jamal Kassir