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:
Apr. 09, 1996
Filed:
Dec. 28, 1993
Applicant:
Inventors:
Reinhard Wagener, Florsheim am Main, DE;
Freddy Helmer-Metzmann, Mainz, DE;
Otto Herrmann-Schonherr, Bensheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
210490 ; 96 13 ; 96 14 ; 21050023 ; 21050038 ; 264 41 ; 525420 ;
Abstract
Semipermeable membranes of homogeneously miscible polymer alloys and a process for their preparation. In particular, semipermeable membranes of homogeneous polymer alloys which contain sulfonated, aromatic polyether ketones and at least one polyamide as the main constituents, wherein the polyamide is a completely aromatic polyamide.