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:
Aug. 10, 2021
Filed:
Jun. 06, 2016
Applicant:
Katholieke Universiteit Leuven, Leuven, BE;
Inventors:
Sanne Hermans, Mechelen, BE;
Ivo Vankelecom, Oud-Heverlee, BE;
Annelies Van Sieleghem, Heverlee, BE;
Assignee:
Katholieke Universiteit Leuven, Leuven, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 39/02 (2006.01); B01D 67/00 (2006.01); B01D 69/12 (2006.01); B01D 69/02 (2006.01); B29C 39/12 (2006.01); B29C 39/00 (2006.01);
U.S. Cl.
CPC ...
B01D 67/0013 (2013.01); B01D 67/0011 (2013.01); B01D 67/0016 (2013.01); B01D 69/02 (2013.01); B01D 69/12 (2013.01); B29C 39/003 (2013.01); B29C 39/006 (2013.01); B29C 39/02 (2013.01); B29C 39/026 (2013.01); B29C 39/12 (2013.01); B29C 39/123 (2013.01); B01D 2323/30 (2013.01); B01D 2323/42 (2013.01); B01D 2325/023 (2013.01);
Abstract
The present invention provides a method for the preparation of an asymmetric membranes. More particularly, the new method relates to the use of a crosslinker contacted via vapour or liquid phase with the surface layer of a cast polymer film, followed by the immersion of said film in a coagulation bath. The formation of a crosslinked skin layer and the solidification of the membrane bulk can thus be decoupled in time.