Aromatic sulfide/sulfone polymer production with complex of alkali metal hydrosulfide and alkali metal amino alkanoate
US5110902A · kind A · utility
17Cited by
11References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 22, 1991 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Mar 22, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/0259
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process is provided for the production of aromatic sulfide-sulfone polymers which comprises contacting under suitable polymerization reaction conditions: (1) at least one dihaloaromatic sulfone, (2) water, and (3) a complex comprising at least one alkali metal hydrosulfide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.