CONTINUOUS METHOD FOR THE PRODUCTION OF POLYAMIDES

Disclosed is a continuous method for producing polyamides, the oligomers or mixtures thereof, optionally with other reaction products, by reacting aminonitriles or dinitriles and diamines or mixtures thereof, optionally alo ng with additional polyamide-forming monomers and/or oligomers, with an aque...

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Bibliographische Detailangaben
Hauptverfasser:	KORY, GAD, DEININGER, JUERGEN, ZEHNER, PETER, DEMETER, JUERGEN, HAHN, THILO, SOETJE, OLIVER
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOSITIONS BASED THEREON GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	Disclosed is a continuous method for producing polyamides, the oligomers or mixtures thereof, optionally with other reaction products, by reacting aminonitriles or dinitriles and diamines or mixtures thereof, optionally alo ng with additional polyamide-forming monomers and/or oligomers, with an aqueous medium comprising aqueous monomer extracts or oligomer extracts which are obtained when extracting the polymer with water during the production of polyamides. Said reaction is carried out in a reactor which has a vertical longitudinal axis and is penetrated essentially in the longitudinal directio n. According to the inventive method, water and/or the aqueous medium is/are introduced into the reactor at least at two different points located along t he vertical longitudinal axis thereof, the aqueous medium being introduced at least at one point.