B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
18/27
B01D 69/10 (2006.01) B01D 67/00 (2006.01) B01D 71/56 (2006.01) C08G 69/32 (2006.01) C12N 11/08 (2006.01)
Patent
CA 1325086
Abstract of the Disclosure A macroporous, asymmetric, hydrophilic membrane containing polyaramid is described. The characterizing features are that it contains a copolyamide which has at least the following recurring structural units: (A) -OC-Ar-CO- (B) -NH-Ar'-NH (C) Image (D) Image where Ar and Ar' denote divalent aromatic radicals in which the valence bonds are in the para or comparable coaxial or parallel position, R denotes a lower alkyl radical or a lower alkoxy radical, in each case having up to 4 carbon atoms, or a halogen radical, and R' denotes an unsubstituted or substituted methylene radical or an - O - Ar - O- group where Ar has the same structure as given above.
588947
Haubs Michael
Herold Friedrich
Krieg Claus-Peter
Skaletz Detlef
Wildhardt Juergen
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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