Method for the deactivation of an acid catalyst during the production process of a polyoxymethylene copolymer

The present invention relates to a method for the deactivation of an acid catalyst during the production process of a polyoxymethylene copolymer (cPOM) by adding (A) triisopropanolamine (tris(2-hydroxypropyl)amine) and/or (B) sodium carbonate and/or sodium hydrogen carbonate, preferably by adding (A...

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Bibliographische Detailangaben
Hauptverfasser:	KNOLL, Konrad, LANGLOTZ, Jutta Karin, VON BOMHARD, Erika Sibylle Julaine, HEITZ, Thomas, DEMETER, Juergen, CHOI, Jin-Sang, KIM, JongMoon
Format:	Patent
Sprache:	eng ; fre
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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Beschreibung
Zusammenfassung:	The present invention relates to a method for the deactivation of an acid catalyst during the production process of a polyoxymethylene copolymer (cPOM) by adding (A) triisopropanolamine (tris(2-hydroxypropyl)amine) and/or (B) sodium carbonate and/or sodium hydrogen carbonate, preferably by adding (A) triisopropanolamine (tris(2-hydroxypropyl)amine) and (B) sodium carbonate and/or sodium hydrogen carbonate, to a mixture (M1) which comprises the polyoxymethylene copolymer (cPOM) and the acid catalyst. La présente invention concerne un procédé de désactivation d'un catalyseur acide pendant le processus de production d'un copolymère de polyoxyméthylène (cPOM) par ajout (A) de triisopropanolamine (tris(2-hydroxypropyl)amine) et/ou (B) de carbonate de sodium et/ou de carbonate d'hydrogène de sodium, de préférence par ajout (A) de triisopropanolamine (tris(2-hydroxypropyl)amine) et (B) de carbonate de sodium et/ou de carbonate d'hydrogène de sodium à un mélange (M1) qui comprend le copolymère de polyoxyméthylène (cPOM) et le catalyseur acide.