Method of manufacturing an integral asymmetrical membrane

Details Method of manufacturing an integral asymmetrical membrane Method of manufacturing an integral asymmetrical membrane

1988-05-06

1989-04-04

Sever, Frank

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

55158, 21050039, 264DIG48, 264DIG62, B01D 1301

Patent

active

048184527

ABSTRACT:
A method of manufacturing an integral asymmetrical membrane for the separation of liquid or gaseous mixtures. A membrane-forming agent in the form of a polyetherimide is mixed with a solvent that is miscible with water. The resulting mixture is introduced into or accommodated in a geometrical form. The form is then brought into contact with a precipitating agent and is post-treated.

REFERENCES:
patent: 4357401 (1982-11-01), Andre et al.
patent: 4673418 (1987-06-01), Peinemann

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