Production of polyoxymethylene polymers, involves polymerisation of monomers in presence of catalyst, with acid anhydride as co-catalyst and optionally with regulator

Production of polyoxymethylene polymers, involves polymerisation of monomers in presence of catalyst, with acid anhydride as co-catalyst and optionally with regulator

Acid anhydrides are used as co-catalysts in a method for the production of polyoxymethylenes (POM) by polymerisation of monomers (a) in presence of catalytic initiators (b), co-catalysts (c) and optionally regulators (d), followed by isolation of the polymer (optionally after deactivation). Verfahre...

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1. Verfasser: DAMES, BURKHARDT
Format: Patent
Sprache:eng ; ger
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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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Zusammenfassung:Acid anhydrides are used as co-catalysts in a method for the production of polyoxymethylenes (POM) by polymerisation of monomers (a) in presence of catalytic initiators (b), co-catalysts (c) and optionally regulators (d), followed by isolation of the polymer (optionally after deactivation). Verfahren zur Herstellung von Polyoxymethylenen durch Polymerisation der Monomeren a) in Gegenwart kationisch wirkender Inhibitoren b) und Cokatalysatoren c) sowie gegebenenfalls in Gegenwart von Reglern d) und anschließend das Polymer gegebenenfalls desaktiviert und danach abgetrennt wird, dadurch gekennzeichnet, dass man als Cokatalysator c) Säureanhydride einsetzt.