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:
Jan. 23, 2018
Filed:
May. 22, 2014
Applicant:
Evonik Fibres Gmbh, Schörfling am Attersee, AT;
Inventors:
Tymen Visser, Beek, NL;
Markus Ungerank, Perg, AT;
Jörg Balster, Schörfling am Attersee, AT;
Christoph Führer, Pinsdorf, AT;
Assignee:
Evonik Fibres GmbH, Schörfling am Attersee, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 67/00 (2006.01); B01D 71/64 (2006.01); B01D 69/08 (2006.01); B29C 71/02 (2006.01); B29K 79/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B01D 71/64 (2013.01); B01D 53/228 (2013.01); B01D 67/0009 (2013.01); B01D 67/0083 (2013.01); B01D 69/08 (2013.01); B29C 71/02 (2013.01); B01D 2053/221 (2013.01); B01D 2053/224 (2013.01); B01D 2323/08 (2013.01); B29C 2071/022 (2013.01); B29K 2079/08 (2013.01); B29L 2031/755 (2013.01);
Abstract
The invention concerns polyimide membranes, preferably composed of P84 type 70 or P84 HT, having improved chemical and physical properties, a method of producing same and also their use.