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:
May. 01, 2012
Filed:
Dec. 17, 2007
Applicants:
Matthias Seiler, Griesheim, DE;
Stefan Bernhardt, Offenbach, DE;
Rolf Schneider, Gruendau-Rothenbergen, DE;
Roland Wursche, Duelmen, DE;
Franz-erich Baumann, Duelmen, DE;
Inventors:
Matthias Seiler, Griesheim, DE;
Stefan Bernhardt, Offenbach, DE;
Rolf Schneider, Gruendau-Rothenbergen, DE;
Roland Wursche, Duelmen, DE;
Franz-Erich Baumann, Duelmen, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 39/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to compositions for producing membranes, the compositions comprising at least 0.1% by weight of highly branched polymer, at least 0.5% by weight of linear polymer and at least 30% by weight of solvent. The present invention additionally describes membranes obtainable from the compositions, and methods of producing these membranes.