PROCESS FOR POLYMERIZING GASEOUS FORMALDEHYDE

A process for continuous suspension polymerization of gaseous formaldehyde is provided, wherein build-up of solid polymer on the reactor walls and stirrer is prevented by the use of a flexible stirrer, conveniently a chain of suitable size, which keeps itself clean and by impinging on the walls of t...

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Bibliographische Detailangaben
Hauptverfasser:	JACOB ACKERMANN, FRANCO FERRE, TETAZ FELICE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLEANING CLEANING IN GENERAL COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREVENTION OF FOULING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for continuous suspension polymerization of gaseous formaldehyde is provided, wherein build-up of solid polymer on the reactor walls and stirrer is prevented by the use of a flexible stirrer, conveniently a chain of suitable size, which keeps itself clean and by impinging on the walls of the reactor under centrifugal force keeps them clean also.