Biocompatible dialysis membrane comprising a mixed polysaccharid

Details Biocompatible dialysis membrane comprising a mixed polysaccharid Biocompatible dialysis membrane comprising a mixed polysaccharid

1989-12-20

1992-02-11

Sever, Frank

Liquid purification or separation

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Material

21050029, 21050038, B01D 6126

Patent

active

050873660

ABSTRACT:
A biocompatible dialysis membrane for hemodialysis in the form of flat sheets, tubular sheets or hollow filaments is disclosed. The dialysis membrane comprises a mixed polysaccharide ester of acetic acid, and/or propionic acid and/or butyric acid and has a structure represented by the formula ##STR1## wherein Cell denotes the skeleton of the polysaccharide molecule without hydroxyl groups; a, b, p, and s are numbers wherein s is a maximum degreee of substitution and the following equations are satisfied: ##EQU1## with the provision that, if a=0, then p and b must be greater than 0 and, if p or b=0, then a must be greater than 0.

REFERENCES:
patent: 4898921 (1987-06-01), Humphrey et al.

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