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. 15, 2000
Filed:
Feb. 13, 1998
Applicant:
Inventors:
Christopher Marc Doyle, Newark, DE (US);
William Brown Farnham, Hockessin, DE (US);
Andrew Edward Feiring, Wilmington, DE (US);
Peter Arnold Morken, Wilmington, DE (US);
Mark Gerrit Roelofs, Hockessin, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; C25B / ; C08F / ;
U.S. Cl.
CPC ...
429213 ; 204291 ; 526243 ; 526247 ; 526255 ; 528401 ;
Abstract
This invention concerns substantially fluorinated, but not perfluorinated, ionomers consisting of a polyethylene backbone having pendant groups of fluoroalkoxy sulfonic acids and metal salts thereof. Such ionomers are useful for electrochemical applications.