B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 61/00 (2006.01) B01D 63/16 (2006.01) B01D 67/00 (2006.01) B01D 69/02 (2006.01) B01D 69/10 (2006.01) B01D 71/64 (2006.01) B23K 26/38 (2006.01) B26F 1/31 (2006.01)
Patent
CA 2361930
A filter membrane, methods of making such filter membrane and apparatus employing such filter membrane are disclosed, in which the filter membrane is a monolithic polymeric membrane (20) that includes a polymeric filter layer (22) including a micro-scale precision-shaped pores (24) and a polymeric support layer (26) that has a precision-shaped porous support for the filter layer. Several methods are disclosed for making such a membrane using micromachining technique, including lithographic, laser ablation and x-ray treatment techniques. Several filter apparatuses employing such a membrane are disclosed.
L'invention concerne une membrane filtrante, des procédés de fabrication d'une telle membrane et un dispositif utilisant ladite membrane filtrante, qui est constituée d'une membrane polymère monolithique (20) comprenant une couche polymère filtrante (22) possédant des pores (24) de forme précise et de petite échelle, ainsi qu'une couche support polymère (26) possédant un support poreux de forme précise destiné à la couche filtrante. L'invention concerne également plusieurs procédés de fabrication d'une telle membrane au moyen de techniques de micro-usinage, y compris des techniques lithographiques, d'ablation par laser et de traitement par rayons X. L'invention concerne en outre plusieurs dispositifs utilisant une telle membrane.
Baxter International Inc.
Sim & Mcburney
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