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:
Dec. 12, 2000
Filed:
Mar. 09, 1999
Applicant:
Inventors:
Hans-Georg Hicke, Teltow, DE;
Ingeburg Lehmann, Teltow, DE;
Margot Becker, Teltow, DE;
Mathias Ulbricht, Berlin, DE;
Gunter Malsch, Teltow, DE;
Dieter Paul, Kleinmanchnow, DE;
Assignee:
GKSS Forschungszentrum Geesthacht GmbH, Geesthacht, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
21050043 ; 21050035 ; 21050023 ; 210490 ; 264 41 ; 264 48 ; 264 49 ; 427245 ;
Abstract
In a method of making solvent and acid resistant membrane on the basis of polyacrylnitrile (PAN) and a comonomer copolymerized therewith wherein the membrane is formed from a solution by phase inversion, glycidylmethacrylate is used as the comonomer and the membrane formed thereby is then subjected to ammonia.