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. 04, 1986
Filed:
Feb. 01, 1985
Applicant:
Inventor:
Charles E Goldsmith, Baton Rouge, LA (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; H01M / ;
U.S. Cl.
CPC ...
204284 ; 2042 / ; 204294 ; 502101 ; 429 42 ; 429 45 ; 264 43 ; 264 44 ; 264 61 ; 156 77 ;
Abstract
A gas diffusion composite electrode useful in an electrochemical cell comprising an electrochemically active layer and a backing layer, said active layer characterized as porous, homogeneous, hydrophilic, and electrolyte-permeable and comprising a sintered mixture of a major amount of an electrically conductive, hydrophilic, particulate material containing admixed therewith an electrochemically active catalyst, and a minor amount of a hydrophobic polymer, said particulate material being substantially coated with said hydrophobic polymer by precipitation of said hydrophobic polymer upon said particulate material.