Process for deactivating polymerization catalyst

An oxymethylene copolymer produced from trioxane, a cyclic ether and/or a cyclic formal in the presence of a cationic polymerization catalyst is contacted with a deactivating agent for the catalyst in the state of gas phase at a temperature of 160 DEG C. or lower to deactivate the cationic polymeriz...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUZAKI, KAZUHIKO, IWAISAKO, TOSHIYUKI, MASAMOTO, JUNZO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON 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:	An oxymethylene copolymer produced from trioxane, a cyclic ether and/or a cyclic formal in the presence of a cationic polymerization catalyst is contacted with a deactivating agent for the catalyst in the state of gas phase at a temperature of 160 DEG C. or lower to deactivate the cationic polymerization catalyst rapidly and completely without causing degradation of the copolymer produced.