| abstract |
Process for the preparation of polyaryl ether ketones by reacting aromatic dihydroxy compounds with aromatic dihalogen compounds in polar aprotic solvents in the presence of alkali metal carbonates, aromatic dihydroxy compounds I or their core-substituted C₁-C₈-alkyl, C₁-C₈-alkoxy, aryl, chlorine or fluorine derivatives, where n and m are 0 or 1, with aromatic dihalogen compounds or their core-substituted C₁-C₈-alkyl, C₁-C₈-alkoxy, aryl, chlorine or fluorine derivatives, where r and s each have the value 0 or 1, A is an oxygen atom or a chemical bond and X is chlorine or fluorine , are implemented. |