04758342 is referenced by 15 patents and cites 6 patents.

The invention relates to a hyperfiltration membrane containing a supporting layer and a separation layer. The membrane is characterized in that the separation layer consists of a crosslinked monomolecular film of molecules, the molecules of the separation layer in the uncrosslinked state being surfactants or surfactant-like lipoids containing at least one hydrophobic chain and at least one hydrophilic group, the hydrophobic chains of these molecules being oriented mainly perpendicularly to the plan of the membrane and parallel to the diffusion direction after crosslinking and the molecules of the separation layer being crosslinked with one another through functional groups in at least one of their hydrophobic chains and/or through functional groups in at least one of their hydrophilic groups. The invention also relates to a process for the production of hyperfiltration membranes in which the surfactant molecules or the surfactant-like lipoid molecules are spread out under a certain spreading pressure or occupying an average space over the surface of an aqueous solution or at the interface between an aqueous solution and a liquid immiscible therewith, the surfactant molecules or the surfactant-like lipoid molecules are crosslinked with one another and the separation layer crosslinked in this way is applied to a supporting membrane.

Title
Hyperfiltration membranes having separation layers of monomolecular films of surfactants
Application Number
351286
Publication Number
4758342
Application Date
April 9, 1984
Publication Date
July 19, 1988
Inventor
Helmut Ringsdorf
Mainz
DE
Klaus Ring
Frankfurt
DE
Beate Pfannenmuller
Freiburg
DE
Georg Manecke
Berlin
DE
Klaus Heckmann
Zum Aichahof 20, D-8400 Regensburg
DE
Agent
Walter H Schneider
Assignee
Klaus Heckmann
DE
IPC
B01D 13/00
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