Lubricants containing molybdenum compounds, phenates and diarylamines
US6174842A · kind A · utility
45Cited by
4References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1999 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Mar 30, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There is disclosed a lubricating oil composition which contains from about 50 to 1000, preferably 50 to 500 parts per million of molybdenum from a molybdenum compound which is oil-soluble and substantially free of reactive sulfur, about 1,000 to 20,000, preferably 1,000 to 10,000 parts per million of a diarylamine and about 2,000 to 40,000 parts per million of a phenate. This combination of ingredients provides improved oxidation control and improved deposit control to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.