Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1989-09-06
1992-01-28
Kendell, Lorraine T.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
21050021, 21050023, 428376, D02G 300
Patent
active
050843494
ABSTRACT:
The cellulosic hollow-fiber membranes of the invention are useful in fluid processing apparatus typically for artificial dialysis. Each fiber has a tubular microporous wall having micropores and defining a lumen. The micropores have an average pore diameter of about 55 to about 300 .ANG.. The cellulosic hollow fibers exhibit a percent removal of .beta..sub.2 -microglobulin through adsorption of up to 10% after a solution of 20 mg/l of .beta..sub.2 -microglobulin in water is circulated through the fiber lumen for 3 hours. They also exhibit a sufficient filtration fraction of .beta..sub.2 -microglobulin and a ultrafiltration rate to remove .beta..sub.2 -microglobulin from blood predominantly through filtration while preventing contamination of the membranes with .beta..sub.2 -microglobulin due to adsorption and controlling the amount of water removed from the blood. The fibers are prepraed by wet spinning a cellulosic spinning dope into a hollow fiber followed by washing, heat treatment, plasticizing, and drying.
REFERENCES:
patent: 4342711 (1982-08-01), Joh et al.
patent: 4388256 (1983-06-01), Ishida et al.
patent: 4444663 (1984-04-01), Aoyagi et al.
patent: 4444716 (1984-04-01), Aoyagi et al.
patent: 4459210 (1984-07-01), Murakami et al.
patent: 4834882 (1989-05-01), Kataoka et al.
Matsumoto Yutaka
Morita Hirotomo
Sakakibara Hiroki
Saruhashi Makoto
Sasaki Masatomi
Kendell Lorraine T.
Terumo Kabushiki Kaisha
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