Lubricating Composition Containing a Salt of a Carboxylic Acid

摘要

The invention provides a lubricating composition containing an oil of lubricating viscosity and an amine or ammonia salt of a carboxylic acid compound where said carboxylic acid is characterized in that it is functionalized with a hydroxy-substituted aromatic moiety. The invention further relates to methods of lubricating an internal combustion engine by supplying the described lubricating composition to the internal combustion engine. The invention further relates to the use of the salt of the carboxylic acid compound as an antiwear agent or an antioxidant.

主权项

1. A lubricating composition comprising an oil of lubricating viscosity and an amine or ammonia salt of a carboxylic acid wherein the carbonyl carbon of the acid is attached directly to or through a divalent hydrocarbyl linkage to an aromatic moiety wherein said aromatic moiety includes two or more hydroxy-groups, alkoxy-groups, or mixtures thereof.