Method of making cellulosic dialysis membrane

Details Method of making cellulosic dialysis membrane Method of making cellulosic dialysis membrane

1997-05-15

2000-02-01

Kim, John

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264187, 264207, C08J 928

Patent

active

060199253

ABSTRACT:
A method for producing cellulosic dialysis membranes in the form of flat, tubular, or hollow fiber membranes by spinning a spinning solution of cellulose and/or modified cellulose, a tertiary amine oxide, and additional liquids and additives such as stabilizers, pore formers and the like is provided. The method operates at high takeoff speed and produces membranes for the low, middle, and high flux ranges. The membranes show practically no aging and have a stable structure. The oxidative breakdown of cellulose in the manufacture of the membranes is extremely low and hemocompatability is very good.

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