Porous hollow-fiber

Details Porous hollow-fiber Porous hollow-fiber

1988-06-21

1989-08-22

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

21050023, 428376, 428401, D01D 512, D02G 300

Patent

active

048595357

ABSTRACT:
A porous hollow-fiber formed of polyolefin. The fiber has a peripheral wall constituted by a plurality of relatively large rods, or strands, of the polyolefin which run substantially perpendicularly to the longitudinal direction of the hollow-fiber and a plurality of fine fibrils which extend in the longitudinal direction of the hollow-fiber between adjacent rods and are connected thereto. Groups of rectangular fine pores are formed by the rods and fine fibrils. The hollow-fiber has groups of fine pores having uniform size and configuration and is excellent in selective separation capabilities.

REFERENCES:
patent: 4055696 (1977-10-01), Kamada et al.
patent: 4214020 (1980-07-01), Ward et al.
patent: 4230463 (1980-10-01), Henis et al.
patent: 4257997 (1981-03-01), Soehngen et al.
patent: 4290987 (1981-09-01), Soehngen et al.
patent: 4340481 (1982-07-01), Mishiro et al.
patent: 4401567 (1983-08-01), Shindo
patent: 4405688 (1983-09-01), Lowery et al.
patent: 4654265 (1987-03-01), Kamei et al.
patent: 4708800 (1987-11-01), Ichikawa et al.
patent: 4756932 (1988-07-01), Puri

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