Spiraled surface hollow fiber membranes

Details Spiraled surface hollow fiber membranes Spiraled surface hollow fiber membranes

B - Operations, Transporting

01

D

B01D 63/02 (2006.01) B01D 65/08 (2006.01) B01D 69/00 (2006.01) B01D 69/08 (2006.01) C02F 1/44 (2006.01) D01D 5/24 (2006.01)

Patent

CA 2473286

Porous asymmetric hollow polymer fiber membranes having spiraled inner and/or outer surfaces, as well as filters and filter devices comprising one or more of the hollow fiber membranes, the filter and devices preferably being arranged to direct fluid flow from the inner surface of the membranes to the outer surface, and methods of using the filters and filter devices, are disclosed.

L'invention concerne des membranes de fibres polymères creuses asymétriques poreuses, possédant des surfaces intérieure et/ou extérieure spiralées, ainsi que des filtres et des dispositifs filtrants comprenant au moins une de ces membranes de fibres creuses. Ces filtres et dispositifs sont de préférence conçus pour diriger un écoulement fluide de la surface intérieure des membranes à la surface extérieure des membranes. L'invention concerne également des procédés d'utilisation de ces filtres et dispositifs filtrants.

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