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. 30, 1980
Filed:
Feb. 26, 1979
Applicant:
Inventors:
Albrecht Klimmek, Frankfurt am Main, DE;
Wolfram Krieger, Frankfurt am Main, DE;
Roland Reiner, Eschborn, DE;
Assignee:
Battelle-Institut e.V., Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B01D / ;
U.S. Cl.
CPC ...
156155 ; 156230 ; 156236 ; 210490 ; 2105002 ; 210506 ;
Abstract
A process for the production of a composite membrane consisting of a porous supporting membrane and a thin separating membrane. The separating membrane is produced on the surface of a carrier film (consisting essentially of a soluble polymer). The carrier film coated with the separating membrane is placed with its separating membrane side on a porous supporting membrane such that the separating membrane is between the supporting membrane and the carrier film. The carrier film is then dissolved.