Dialysis membranes and process for their production

Details Dialysis membranes and process for their production Dialysis membranes and process for their production

B - Operations, Transporting

01

D

B01D 61/24 (2006.01) B01D 61/42 (2006.01) B01D 67/00 (2006.01) B01D 69/04 (2006.01) B01D 69/14 (2006.01) B01D 71/10 (2006.01) B01D 71/38 (2006.01) C08J 5/22 (2006.01)

Patent

CA 2283837

A process for forming a dialysis membrane utilizing a mixture of ion exchange resin components and thermoplastic resin components mixed together in a dry state and rotationally formed into a membrane. The rotational forming process includes rotational molding using temperature to conform the components to the shape of the mold as well as rotational casting using solvents and phase inversion to form the membrane. The resulting membrane is a smooth, dimensionally stable, efficient dialysis membrane.

Procédé pour former une membrane de dialyse à partir d'un mélange composé de résines échangeuses d'ions et de résines thermoplastiques, réunies à l'état sec et façonnées par rotation pour former une membrane. Le procédé de façonnage par rotation comprend un moulage rotatif à une température permettant une adaptation des composants à la forme du moule, ainsi qu'une coulée rotative utilisant des solvants et une inversion des phases pour former la membrane. On obtient ainsi une membrane de dialyse lisse, stable en dimension et efficace.

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