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:
Nov. 28, 1995
Filed:
Mar. 25, 1994
Applicant:
Inventors:
Wolfgang Ansorge, Essen, DE;
Ralf Hornscheidt, Velbert, DE;
Andreas Jungheim, Solingen, DE;
Klaus Muller, Wuppertal, DE;
Assignee:
Akzo Nobel NV, Arnhem, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
21050023 ; 210411 ; 2103218 ;
Abstract
The invention relates to a process for removing a lumen filler and/or undesired auxiliary processing agents from hollow fibers or hollow fiber membranes by extraction with supercritical gases. The invention likewise relates to the hollow fibers or hollow fiber membranes freed of a lumen filler and/or undesired auxiliary processing agents by this process.