PROCESS FOR PREPARING POLYALKENAMERS FOR PACKAGING APPLICATIONS

The present invention relates to a process for producing cycloalkenamer-containing compositions, comprising the steps of: a) converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containing product mixture, and b) working up the product mixture to re...

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Bibliographische Detailangaben
Hauptverfasser:	ADAM, Dieter, MICHLBAUER, Franz, WURSCHE, Roland, SCHWAGER, Florian
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS 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 process for producing cycloalkenamer-containing compositions, comprising the steps of: a) converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containing product mixture, and b) working up the product mixture to remove monomers and oligomers of the cycloalkenes to obtain the polyalkenamer-containing composition by extraction with CO 2 , wherein the extraction comprises at least two stages: b1) an extraction with supercritical CO 2 , then b2) an extraction with gaseous CO 2 and then b3) an extraction with supercritical CO 2 .