Lubricant composition
US8318645B2 · kind B2 · utility
1Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2006 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | May 28, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The lubricating oil composition of the invention includes a base oil composed of mineral oil and/or synthetic oil, an amine antioxidant (A-1) in an amount of 800 ppm or more as reduced to the total amount of nitrogen, and a compound containing phosphorus and/or sulfur (A-2). The invention provides a compressor oil which realizes thermal/oxidation stability, resistance to sludge formation, lubricity, long service life, and water separation at high levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.