HIGH-PRESSURE POLYMERIZATION PROCESS OF ETHYLENICALLY UNSATURATED MONOMERS

A process for the preparation of ethylene polymer or ethylene copolymers in a high-pressure polymerization apparatus wherein one or more free-radical polymerization initiators are introduced into the high-pressure polymerization apparatus by use of a phased flow pump as well as a high-pressure polym...

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Bibliographische Detailangaben
Hauptverfasser:	WOLF, Christoph, WOLFRAM, Sven, MOHRBUTTER, Juergen, KHAYRULLIN, Danir, DEUERLING, Michael, FINETTE, Andre-Armand
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for the preparation of ethylene polymer or ethylene copolymers in a high-pressure polymerization apparatus wherein one or more free-radical polymerization initiators are introduced into the high-pressure polymerization apparatus by use of a phased flow pump as well as a high-pressure polymerization apparatus for carrying out said process. L'invention concerne un procédé de préparation de polymères d'éthylène ou de copolymères d'éthylène dans un appareil de polymérisation à haute pression dans lequel un ou plusieurs initiateurs de polymérisation à radicaux libres sont introduits dans l'appareil de polymérisation à haute pression à l'aide d'une pompe à flux à commande de phase ainsi qu'un appareil de polymérisation à haute pression pour mettre en oeuvre ledit procédé.