Synergistic combination of additives useful in power transmitting compositions
US5078893A · kind A · utility
22Cited by
27References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1988 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | Jun 24, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A mutually compatible combination of additives and their use to impart anti-wear, oxidation inhibition and friction modification to power transmission compositions, particularly automatic transmission fluids, is disclosed. The additives comprise an organic phosphite ester such as triphenyl phosphite and a hydroxyl amine compound, such as that having the formula ##STR1## preferably in combination with a dispersant such as a polyisobutenyl succinimide or a borated derivative thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.