Metal dihydrocarbyl-dithiophosphyl-dithiophosphates their manufacture and use as additives for lubricants
US4766228A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1986 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Sep 4, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2010/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to compounds of the metal dihydrocarbyl-dithiophosphyl-dithiophosphate type, their manufacture and use. These compounds can be represented by the general formula: ##STR1## wherein R is a monovalent substantially hydrocarbon-containing radical of 1 to 30 carbon atoms, X and Y are each a hydrogen atom or a monovalent substantially hydrocarbon-containing radical of 1 to 30 carbon atoms, M is a metal selected from zinc, cadmium, lead and antimony or an oxygen- and/or sulfur-containing molybdenum complex, and n is the valence of said metal M. The compounds according to the invention can be used as additives for lubricants wherein they act as a very efficient wear preventive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.