Verfahren zum Reinigen von Hohlfasern

摘要

The invention relates to a process for removing a lumen filler and/or unwanted process aids from hollow fibres or hollow fibre membranes, characterised in that the hollow fibres or hollow fibre membranes are extracted with supercritical gases. The invention likewise relates to the hollow fibres or hollow fibre membranes freed by this process from a lumen filler and/or unwanted process aids.