Stable polysulfides and process therefor
US5218147A · kind A · utility
30Cited by
9References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1992 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Apr 29, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C319/26
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a stable polysulfide compound, synthesized by reacting a mercaptan with elemental sulfur in the presence of a basic catalyst, having reduced mercaptan sulfur content is provided which comprises contacting the crude polysulfide with an alkylene oxide in the presence of a tetraalkylammonium hydroxide or a basic inorganic catalyst in a solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.