C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
18/27, 117/88.5
C08J 9/28 (2006.01) A61K 9/48 (2006.01) B01D 15/02 (2006.01) B01D 53/22 (2006.01) B01D 61/14 (2006.01) B01D 69/02 (2006.01) B01D 71/74 (2006.01) B65D 65/38 (2006.01)
Patent
CA 1286065
27744-1 ABSTRACT OF THE DISCLOSURE A structure usable as an ultrafiltration membrane has membranes with uniform continuous pores. The membranes are linked together to form a stable unsupported film, or are connected to a carrier, preferably a porous one. Each membrane consists of protein or protein-containing molecules which are arranged to form a crystal lattice defining continuous pores free of the said molecules. Such membranes can be formed by suspending or dissolving protein-containing molecules derived from a surface layer of a cell wall of a procaryote microorganism in an aqueous medium which contains at least one of a chaotropic agent and a surfactant or has a predetermined pH value followed by a recrystallization process designated as self-organization. The molecules are preferably deposited on or into the carrier and are cross-linked intra- or intermolecularly or with the carrier, respectively, through foreign molecules. The resulting structure is suitable for use as a separating organ for a gas separation or for an ion exchange process, as well as for use as a carrier structure for other semi-permeable membranes, such as hyperfiltration membranes. Moreover, the membrane in vesicle form can serve as a chromatography column and, in the form of film, as envelope material for the most varied substances.
476037
Sara Margit
Sleytr Uwe B.
Fetherstonhaugh & Co.
Nano S. Biotechnologie Gmbh
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