Lubricating compositions, greases, aqueous fluids containing organic ammonium thiosulfates
US5354485A · kind A · utility
16Cited by
20References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1993 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Mar 26, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/025
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a composition comprising a major amount of an oil of lubricating viscosity, and (A) an organic ammonium thiosulfate. The lubricating composition is either free of added lead containing compounds or additionally contains (B) a phosphorus or boron antiwear/extreme pressure agent, or both. The invention also includes greases and aqueous fluids containing organic ammonium thiosulfates. These compositions have improved antiwear, antiweld, extreme pressure and/or friction properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.