2,5-Dimercapto-1,3,4-thiadiazole derivatives and lubricants containing them
US4246126A · kind A · utility
12Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1979 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | May 29, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A novel nitrogen and sulfur composition is prepared by the reaction of 2,5-dimercapto-1,3,4-thiadiazole with a peroxide, preferably hydrogen peroxide. This nitrogen and sulfur composition may be reacted with polysulfides, mercaptans and amino compounds (especially oil-soluble, nitrogen-containing dispersants) to produce lubricant additives having decreased copper activity and a decreased tendency for "lead paint" deposition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.