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:
Jul. 27, 1982
Filed:
Jan. 16, 1981
Applicant:
Inventors:
John C Solenberger, Mt. Prospect, IL (US);
Michael S Withers, Landenberg, PA (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ; C25B / ;
U.S. Cl.
CPC ...
204 98 ; 204128 ; 204252 ; 204296 ;
Abstract
A cation permeable membrane containing areas of thin wall construction comprises a cation exchange polymer matrix having a reinforcement fabric embedded therein. A two-step lamination procedure is described where holes are formed in a film of laminated polymer prior to a second lamination step. The cation permeable membrane has utility in membrane ion exchange, reverse osmosis devices or in electrolytic cells such as chlor-alkali cells.