Preparation of high purity polysulfides
US5206439A · kind A · utility
15Cited by
2References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1992 |
| Grant date | Apr 27, 1993 |
| Priority date | — |
| Expiry date | Jan 27, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C319/28
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Product from the reaction of mercaptan with sulfur in the presence of a basic catalyst is treated by contacting with an alcohol-based solution containing an oxidizing agent and an inorganic basic catalyst followed by the recovery of a purified polysulfide product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.