Lubricating oil compositions containing novel combination of stabilizers
US4652385A · kind A · utility
18Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1985 |
| Grant date | Mar 24, 1987 |
| Priority date | — |
| Expiry date | Jul 19, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2223/042
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Lubricant compositions are disclosed in which a synergistic combination of low-volatility tri-substituted phosphite and low-volatility sterically hindered phenolic stabilizers provide surprisingly effective antioxidant qualities to lubricating oils selected from hydrotreated oils, poly-alpha-olefin oils and paraffinic white oils, and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.