Low ash, low phosphorus and low sulfur engine oils for internal combustion engines
US6730638B2 · kind B2 · utility
24Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2003 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Jan 24, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2060/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricating composition for internal combustion engines especially useful with fuels having less than 350 ppm sulfur comprises a lubricating oil basestock, a boron containing ashless dispersant, a molybdenum containing friction reducing agent, a metal type detergent and zinc dithiophosphate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.