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:
Feb. 05, 1991
Filed:
Feb. 28, 1989
Applicant:
Inventors:
Stephen A Perusich, Newark, DE (US);
James T Keating, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ; C25B / ; C25B / ; D06M / ; D06M / ; D06M / ; D06M / ;
U.S. Cl.
CPC ...
204 98 ; 811552 ; 811553 ; 811556 ; 811562 ; 811563 ; 811568 ; 811569 ; 2042 / ; 204296 ; 204101 ; 423500 ; 423501 ; 423D / ; 427 36 ; 427 41 ; 427 44 ; 427 541 ; 427341 ; 427342 ; 4273899 ; 428229 ; 428252 ; 428253 ; 428265 ; 428286 ; 428421 ; 428422 ; 521 27 ; 521 31 ; 521 32 ; 521 38 ; 210660 ; 210679 ; 2105001 ; 210508 ;
Abstract
A fluorinated cation exchange membrane made using reinforcement of oriented, hydrolyzed fabric of a cation exchange copolymer, the fabric having a coating of a melt-processible precursor or derivative of a fluorinated cation exchange resin on at least one surface or throughout.