Lubricating oil compositions

Details Lubricating oil compositions Lubricating oil compositions

2006-11-14

2010-12-07

Caldarola, Glenn (Department: 1797)

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic nitrogen compound

C508S110000, C564S307000

Reexamination Certificate

active

07846884

ABSTRACT:
Lubricating oil compositions containing (a) at least one oil of lubricating viscosity and (b) an effective amount of at least one thio-functionalized phenylenediamine compound of the general formula:wherein R1, R2, R3, R4and n are as defined herein are provided. Methods of operating an engine employing the lubricating oil composition are also provided.

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