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. 19, 1985
Filed:
Sep. 28, 1982
Frank Solomon, Great Neck, NY (US);
Diamond Shamrock Chemicals Company, Dallas, TX (US);
Abstract
The disclosure is directed to preparing three-layer laminated 'matrix' electrodes suitable for use as oxygen (air) cathodes in chlor-alkali and other electrochemical cells, fuel cells and in other electrochemical applications. The term 'matrix' as used herein means that the active carbon particles are present within an unsintered network of carbon black-PTFE (fibrillated) material. This three-layer laminated electrode includes a porous, coherent, hydrophobic polytetrafluoroethylene (PTFE)-containing backing (wet proofing) layer, with or without carbon black therein, in contact with the non-working surface of a 'matrix' active layer containing catalyzed or uncatalyzed active carbon particles present within an unsintered network of fibrilliated carbon black-PTFE and an electroconductive current distributor laminated to the working surface of said active layer, and to a process for making said laminate.