C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
18/15, 8/5, 18/5
C08J 9/28 (2006.01) B05D 3/00 (2006.01) C08J 5/22 (2006.01) D01D 5/24 (2006.01) D01F 1/08 (2006.01) D02G 3/22 (2006.01)
Patent
CA 1091409
ABSTRACT OF THE DISCLOSURE A dry-wet process for forming interiorly asymmetric hollow fiber cellulose acetate membranes, which are useful is hemodialysis, artificial kidneys and the like, by extrusion of a spinning solution of the polymer and introducing a non-solvent for the polymer in the hollow passage of the hollow fiber being extruded to form the interior of the fiber by a wet phase inversion process, is disclosed.
251594
Gelman Sciences Inc.
Gowling Lafleur Henderson Llp
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