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Charged filtration membranes and uses therefor

  • US 20030178368A1
  • Filed: 04/16/2003
  • Published: 09/25/2003
  • Est. Priority Date: 07/30/1999
  • Status: Active Grant
First Claim
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1. A filtration membrane comprising a covalently attached charged compound, wherein membrane sieving for a solute is improved by at least 1.5 fold relative to the membrane lacking the charged compound, wherein a sieving versus permeability curve is shifted to lower sieving values relative to a curve obtained with a membrane lacking the charged compound, and wherein the filtration membrane comprises a cellulose polymer.

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