Process for synthesis of aromatic sulfides
US5177183A · kind A · utility
3Cited by
7References
12Claims
0Family size
Inventors
Key dates
| Filing date | Aug 30, 1990 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Aug 30, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/0268
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Aromatic sulfides including diarylsulfides and poly(arylene sulfides) are produced in a novel synthesis in high yield under moderate conditions by heating an aromatic disulfide in the presence of aromatic halide, in which the halide is chloride, bromide or iodide; the diaryl sulfides are useful precursors and starting materials for a range of compounds and the poly(arylene sulfides) are important high temperature engineering thermoplastics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.