Lubricating oil composition
US6723685B2 · kind B2 · utility
68Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Apr 5, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/25
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricating oil composition comprising a) an oil of lubricating viscosity having a viscosity index of at least 95; b) at least one calcium detergent; c) at least one oil soluble molybdenum compound; d) at least one organic ashless nitrogen-free friction modifier; and e) at least one metal dihydrocarbyldithiophosphate compound, the composition having a Noack volatility of about 15 wt. % or less, from 0.05 to 0.6 wt. % calcium from the calcium detergent, molybdenum in an amount of at least 10 ppm from the molybdenum compound, and phosphorus from the metal dihydrocarbyldithiophosphate compound in an amount up to about 0.1 wt. %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.