Copper dihydrocarbyl dithiophosphyl dithiophosphates, their preparation and their use as additives for lubricants
US5132031A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1990 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Aug 21, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B1/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel products of the copper dihydrocarbyl dithiophosphyl dithiophosphate type, their preparation and their use are described. These products can be represented by the general formula: ##STR1## in which R particularly represents a substantially hydrocarbon monovalent radical with 1 to 30 carbon atoms, X and Y each represent a hydrogen atom or a substantially hydrocarbon monovalent radical with 1 to 30 carbon atoms, M represents copper in one of its two ordinary degrees of oxidation and n the degree of oxidation. The products according to the invention are usable as additives for lubricants in which they provide an effective protection against wear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.