Thiophosphoretted compounds, their preparation and their use as additives for lubricants
US5080812A · kind A · utility
7Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1990 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Mar 29, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A new class of antiwear and extreme-pressure additives consisting of thiophosphoretted compounds obtained by reactin gphosphorus sulfieds, especially phosphorus decasulfide P.sub.4 S.sub.10, with surbasic detergent additives, is described. The reaction product can be optionally treated by at least one active hydrogen compound: water, alcohol, phenol, acid, ammonia, amine, amide and/or mercaptan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.