Lactam block terpolymeric permselective membranes

Details Lactam block terpolymeric permselective membranes Lactam block terpolymeric permselective membranes

C - Chemistry, Metallurgy

08

G

182/13, 18/14

C08G 69/44 (2006.01) B01D 71/56 (2006.01) B01D 71/80 (2006.01)

Patent

CA 1148292

ABSTRACT OF THE DISCLOSURE Permselective membranes are provided consisting of lactam-polyol-polyacyl lactam block terpolymers having from 35 to 75% by weight polylactam blocks and 25 to 65% by weight polyalkylene ether blocks. The membranes are par- ticularly suitable as blood dialysis membranes having improved permeability to solutes in the medium range of molecular weights while maintaining acceptable ultra- filtration rates and permeability to low molecular weight solutes. The membranes are provided both as planar films and hollow fibers, have high hydrolytic stability under hot wet sterilization conditions and good mechanical properties under hemodialysis conditions.

329060

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