METHOD OF PRODUCING POLYARYLENE ETHER KETONES Russian patent published in 2009 - IPC C08G65/46 C08G65/48 C08G65/40 

FIELD: chemistry.

SUBSTANCE: method of producing polyarylene ether ketone is proposed, which involves: reacting an aromatic dihalogen compound with bisphenol and/or halogenphenol in the presence of a carbonate or hydrocarbonate of alkali and/or alkali-earth metals in a high-boiling aprotic solvent; wet crushing in the presence of a suitable organic solvent and simultaneous pre-extraction of the solidified reaction mixture; extraction and filtration of the wet crushed product in a nutsche filter, operating at pressure from 1 to 10 bars, and drying the extracted product.

EFFECT: improved technology of processing the reaction mixture, prevention of loss and contamination of the reaction product.

4 cl, 1 ex