Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1991-03-05
1992-11-03
Sever, Frank
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
425472, B01D 6700, B01D 6908, D01D 524, D01F 108
Patent
active
051606739
ABSTRACT:
A hollow fiber module with at least one bundle of hollow fibers made in a U shape, in which each hollow fiber bundle comprises at least two part bundles of different average lengths, the hollow fibers arranged essentially in the form of layers at least in the region of the bend of the U shape, the layers extending substantially parallel to the longitudinal axis of the module, the longitudinal axes of the layers and the longitudinal axis of the module approximately coinciding and the layers forming an angle between them when viewed longitudinally. An apparatus and process for making the hollow fiber module are also disclosed.
REFERENCES:
patent: 3526001 (1968-11-01), Smith et al.
patent: 3528553 (1970-09-01), Caracciolo
patent: 3884814 (1975-05-01), Vogt et al.
patent: 3957648 (1976-05-01), Roget et al.
patent: 4146597 (1979-03-01), Eckstein et al.
patent: 4531954 (1985-07-01), Klein
patent: 4668401 (1987-05-01), Okumura et al.
Wollbeck Rudi
Zang Thomas
Akzo N.V.
Sever Frank
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