B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 69/02 (2006.01) B01D 69/08 (2006.01) B01D 71/68 (2006.01)
Patent
CA 2660161
The present invention concerns a semipermeable hollow fiber membrane having an outer wall surface, an inner wall surface and an interior lumen extending along the length thereof and having the selective layer on the outer wall surface with a surface roughness below 10nm. According to the invention the membrane has the smallest pore size on the outer wall surface, and has an outer wall surface which is smooth, continuous and homogeneous in a nanoscopic scale and four to five distinct layers of different pore size and density. Further the present invention concerns a process for manufacturing thereof and the use thereof.
La présente invention concerne une membrane à fibres creuses semi-perméable comportant une surface de paroi externe, une surface de paroi interne et une lumière intérieure s'étendant le long de celle-ci, avec la couche sélective sur la surface de paroi externe, la rugosité de surface étant inférieure à 10nm. Selon l'invention, la taille de pores la plus faible de la membrane se situe sur la surface de paroi externe, cette dernière étant lisse, continue et homogène à l'échelle nanoscopique. La présente invention concerne en outre un procédé de fabrication de la membrane, et son utilisation.
Goehl Hermann
Hornung Markus
Kraft Carina
Krause Bernd
Gambro Lundia Ab
Robic
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