Hollow fiber membrane

Details Hollow fiber membrane Hollow fiber membrane

1989-10-11

1991-09-17

Woo, Jay H.

Liquid purification or separation

Filter

Material

21050027, 21050041, 26417714, 428376, D01D 524, D01F 108

Patent

active

050492764

ABSTRACT:
A hollow fiber membrane in which the pore size changes in such manner that it gradually decreases in the direction from the outside surface of the hollow fiber to the inside and the minimum pore size gradually increases toward the opening of the inside surface. The change in the pore size is also continuous.

REFERENCES:
patent: 3871950 (1975-03-01), Hashimo et al.
patent: 4604326 (1986-08-01), Manabe et al.
patent: 4612119 (1926-09-01), Eguchi
patent: 4814228 (1989-03-01), Onorato et al.
patent: 4822489 (1989-04-01), Nohmi et al.

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