The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2020
Filed:
Aug. 12, 2015
Fraunhofer-gesellschaft Zur Förderung Der Angewandten Forschung E.v., München, DE;
Iab Ionenaustauscher Gmbh, Bitterfeld-Wolfen, DE;
Uwe Spohn, Halle, DE;
Ulrike Hirsch, Halle, DE;
Marco Rühl, Bitterfeld-Wolfen, DE;
Nico Teuscher, Halle, DE;
Andreas Heilmann, Augustusburg, DE;
Carsten Schellenberg, Leipzig, DE;
Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V., München, DE;
IAB Ionenaustauscher GmbH, Bitterfeld-Wolfen, DE;
Abstract
The invention relates to a combined method for gentle molecular surface functionalisation of the very thin, selectively-acting separating layer which preferably consists of aromatic polyamides, polyurethanes and/or polyureas, of thin-film composite membranes for reverse osmosis (hyperfiltration) and for nanofiltration, subsequently collectively termed water-filtration membranes, in order to achieve a passive antifouling effect without impairing the selectivity of the water-selective separating layer made of polyamides and the water-permeability of the membrane.