Asymmetric gel-filled microporous membranes

Details Asymmetric gel-filled microporous membranes Asymmetric gel-filled microporous membranes

B - Operations, Transporting

01

D

B01D 69/14 (2006.01) B01D 67/00 (2006.01) B01D 69/02 (2006.01) B01D 69/10 (2006.01) B01D 69/12 (2006.01) B01D 71/38 (2006.01) B01D 71/40 (2006.01) B01D 71/44 (2006.01) B01D 71/72 (2006.01) C08J 9/42 (2006.01)

Patent

CA 2454323

The invention provides asymmetric membranes composed of a microporous substrate whose pores contain a crosslinked gel, the density of the crosslinked gel being greater at or adjacent to one major surface of the membranethan the density at the other major surface. The membranesare useful for separating matter from liquids and display good flux and good rejection at low pressure.

La présente invention concerne des membranes asymétriques composées d'un substrat microporeux dont les pores contiennent un gel réticulé dont la densité à l'emplacement ou à proximité immédiate de l'emplacement de la surface principale de la membrane est supérieure à la densité à l'emplacement de l'autre surface principale. Les membranes de l'invention sont utilisées pour séparer la matière des liquides et offrir un bon échange et un bon rejet à basse pression.

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