Porous membrane

Details Porous membrane Porous membrane

1982-05-19

1984-07-10

Foelak, Morton

Liquid purification or separation

Filter

Material

264 41, 264178F, 428 36, 428398, 521 64, 521 841, B01D 3914

Patent

active

044592108

ABSTRACT:
A porous membrane which is composed of cellulose acetate and acrylic polymer, for example, poly(methyl methacrylate) or methyl acrylate-methyl methacrylate copolymer, is highly suitable for plasmapheresis. A polymer alloy consisting of cellulose acetate, acrylic polymer and a small amount of cellulose nitrate has a good spinnability to produce a hollow fiber type membrane and has an excellent biocompatibility.

REFERENCES:
patent: 3544489 (1970-12-01), Dowbenko et al.
patent: 3654193 (1972-04-01), Seiner
patent: 3655591 (1972-04-01), Seiner
patent: 3661807 (1972-05-01), Seiner
patent: 3682848 (1972-08-01), Virnelson
patent: 3864289 (1975-02-01), Rendall
patent: 3950247 (1976-04-01), Chiang et al.

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