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Dialysis membrane composed of polysaccharide ether II

  • US 5,427,684 A
  • Filed: 06/07/1993
  • Issued: 06/27/1995
  • Est. Priority Date: 06/05/1992
  • Status: Expired due to Fees
First Claim
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1. A dialysis membrane for hemodialysis comprising a sheet film, tubular film, or hollow fiber composed of polysaccharide ether, the polysaccharide ether having a structure given by the formula ##STR7## in which cell is the skeleton of an unmodified cellulose molecule or of a chitin molecule, each with no hydroxyl groups, s is equal to 3 when the cell is the skeleton of an unmodified cellulose molecule and 2 when the cell is the skeleton of a chitin molecule, x is the degree of etherification in the range of from 0.001 to 0.079, and R is at least one substituted or unsubstituted group selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, cycloalkynyl, aryl, arylalkyl, arylalkenyl, arylalkynyl group with 3 to 25 carbon atoms, and a radical of a heterocyclic compound with 3 to 25 carbon atoms, in which the carbon chain may be interrupted by oxygen or sulfur atoms.

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