MANUFACTURE OF AROMATIC POLYETHERSULFONE

The present invention relates to a process for the preparation of high-molecular-weight, aromatic polyether sulphones from diphenols and dihaloaryl compounds which is characterised in that N-alkylated acid amides are employed as solvent and at the same time the water produced during the reaction is...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TOOMASU ETSUKERU, KARURU FUURU, KARURUUHAINTSU OTSUTO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to a process for the preparation of high-molecular-weight, aromatic polyether sulphones from diphenols and dihaloaryl compounds which is characterised in that N-alkylated acid amides are employed as solvent and at the same time the water produced during the reaction is removed azeotropically.