Lubricating oil compositions
US7026273B2 · kind B2 · utility
13Cited by
8References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2002 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Apr 19, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2060/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A crankcase lubricating oil composition comprises an oil of lubricating viscosity, in a major amount, and, in respective minor amounts, a boron-containing additive and one or more co-additives, wherein the lubricating oil composition has greater than 200 ppm by mass of boron, less than 600 ppm by mass of phosphorus and less than 4000 ppm by mass of sulfur, based on the mass of the oil composition. Such compositions demonstrate provide improved wear performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.