Lubricating composition
US7833954B2 · kind B2 · utility
0Cited by
15References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2008 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Sep 20, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present application is directed to a lubricant composition comprising a major amount of a base oil; and a lead corrosion inhibiting amount of a reaction product of a hydrocarbyl carbonyl compound and an amine compound chosen from guanidines, ureas and thioureas; with the proviso that the lubricant is essentially free of zinc dialkyldithiophosphate wear inhibitors, and substantially free of chlorinated paraffins and calcium mannich phenate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.