Lubricating oil compositions
US7846884B2 · kind B2 · utility
1Cited by
8References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 2006 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Sep 9, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/25
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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, R4 and n are as defined herein are provided. Methods of operating an engine employing the lubricating oil composition are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.