Method for activating cellulosic membrane, activated cellulosic

Details Method for activating cellulosic membrane, activated cellulosic Method for activating cellulosic membrane, activated cellulosic

1989-10-18

1991-05-14

Sever, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210655, 21050029, B01D 7110

Patent

active

050153870

ABSTRACT:
A method for activating a membrane comprising cellulose as a main component, by reacting the membrane with a compound of the formula Cl-SO.sub.2 -R or Cl-CO-R.sub.1 where R is an optionally substituted alkyl or phenyl group and R.sub.1 is a releasing group, an activated membrane obtained by the method, a method of fixing a physiologically active substance on the activated membrane and a physiologically active substance-fixed membrane obtained by the method. A physiologically active substance can be fixed on the activated membrane by stable chemical bond between the substance and the membrane while maintaining the physiological activity of the substance.

REFERENCES:
patent: 4801726 (1989-01-01), Glese et al.

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