Evonik Operations Gmbh

Claudius Neumann

Roland Wursche

Franz Michlbauer

Helmut Hausner

Florian Schwager

A process for producing cycloalkenamer-containing compositions involves converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containing product mixture. The product mixture is worked up to remove monomers and oligomers of the cycloalkenes to obtain the polyalkenamer-containing composition by extraction with CO. The extraction involves at least two stages: an extraction with liquid COunder the supercritical conditions, and then an extraction with supercritical CO. Such cycloalkenamer-containing compositions can be used, for example, in the field of packaging materials, especially for food and drink.

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Rossdorf, Germany

Claudius Neumann