Process for preparing polyaryletherketones

Preparation of polyarylene ether ketones (A), comprises reacting an aromatic dihalo compound with a bisphenol and/or halogen phenols in the presence of alkali and/or alkaline earth carbonate in a high boiling aprotic solvent, to obtain the polyarylene etherketone; wet crushing the hardened reaction...

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Bibliographische Detailangaben
Hauptverfasser: RICHTER, ALEXANDER, UHLICH, WILFRIED, SCHIEMANN, VERA, GUENZEL, BERND, JILG, BORIS
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:Preparation of polyarylene ether ketones (A), comprises reacting an aromatic dihalo compound with a bisphenol and/or halogen phenols in the presence of alkali and/or alkaline earth carbonate in a high boiling aprotic solvent, to obtain the polyarylene etherketone; wet crushing the hardened reaction mixture in present of water; washing the mixture with an organic solvent and water; and drying the washed product, where the reaction mixture with a moisture content of less than 1 wt.% is fed for two-stage washing.