Evonik Fibres Gmbh

Harald Roegl

Markus Ungerank

Markus Priske

Goetz Baumgarten

Christian Maurer

Dieter Danzer

Juergen Eder

Jürgen Eder

The present invention relates to novel block copolyimides for preparing highly selective integrally asymmetrical gas separation membranes of improved permeance, processes for preparing these block copolyimides, membranes prepared from the block copolyimides, and also the use of the block copolyimides and of the membranes prepared therefrom.

Highly-selective polyimide membranes with increased permeance, said membranes consisting of block copolyimides

The present invention relates to a method of controlling a gas separation plant, to a plant thus controlled and also to its use for separation of gas mixtures, especially in the processing of biogas or natural gas, or syngas.

Control of gas composition of a gas separation system having membranes

The invention relates to shaped bodies having high thermooxidative stability, which can be produced by means of direct forming and hot compression molding processes, and to a novel polyimide powder for production thereof and to a process for production of this polyimide powder.

Polyimide powder having high thermooxidative stability

The invention relates to a specific apparatus, more particularly a chain of gas separation membrane modules, for separation of gas mixtures into two fractions each of elevated purity.

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Wallern an der Trattnach, Austria

Harald Roegl