Patent ID: 7538076
Filing Date: 2009-05-26
Classification: C10M,C10N

Abstract:
1. A lubricant composition, comprising: (A) a major amount of an oil of lubricating viscosity; (B) a minor amount of at least one hindered-phenol-containing diester antioxidant wherein said antioxidant is formed from a 3-(3,5-di-t-alkyl-4-hydroxyphenyl)propionic acid or a reactive equivalent thereof and a 1,2-alkanediol; and (C) a minor amount of at least one other additive selected from the group consisting of viscosity modifiers, pour point depressants, dispersants, detergents, antiwear agents, antioxidants that are different from component (B), friction modifiers, corrosion inhibitors, seal swell agents, metal deactivators, foam inhibitors, and mixtures thereof.