Semipermeable membrane and process for preparing same

Details Semipermeable membrane and process for preparing same Semipermeable membrane and process for preparing same

1989-05-26

1990-09-18

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 64, 521138, 21050023, 21050027, 21050041, C08J 928

Patent

active

049579428

ABSTRACT:
The semipermeable membrane contains a polyarylate resin and a polysulfone resin as a major membrane material and has a fibrilliform structure with a high mechanical strength and has a water permeability of 1,500 ml/m.sup.2.hr.mmHg or lower as well as an inhibitory rate against bovine serum albumin of 80% or higher and against cytochrome C of 40% or lower. The membrane is prepared by discharging a stock solution containing the polyarylate resin and the polysulfone resin in the total amount of 10% to 25% by weight and a core solution of an organic solvent containing water in the amount of 25% to 80% by volume into a coagulating solution.

REFERENCES:
patent: 4208508 (1980-06-01), Hasaino et al.
patent: 4240914 (1980-12-01), Iwama et al.
patent: 4705632 (1987-11-01), Yagita et al.
patent: 4746472 (1988-05-01), Kohn
patent: 4842740 (1989-06-01), Chung et al.

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