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. 05, 2000
Filed:
Dec. 07, 1998
Applicant:
Inventors:
Vincenzo Antonucci, Messina, IT;
Antonino Arico', S. Marco D'Alunzio, IT;
Assignee:
De Nora S.p.A., , IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
205334 ; 204263 ; 204296 ; 205343 ;
Abstract
A proton exchange membrane comprising a perfluorosulfonic acid having silica particles embedded therein at a concentration of 0.01 to 5% by weight, said particles having a dimension of 0.001 to 10 micrometers, the membrane having a crystalline phase and an amorphous phase in a ratio adjusted by controlled thermal treatment at a temperature higher than the glass transition temperature, an electrochemical cell containing said membrane and a process for oxidizing a fuel in said electrochemical cell.