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:
Oct. 06, 1981
Filed:
Mar. 31, 1980
William B Darlington, Portland, TX (US);
Donald W DuBois, Corpus Christi, TX (US);
Preston S White, Corpus Christi, TX (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
Disclosed is a solid polymer electrolyte electrolytic cell where the cathodic reaction takes place at a three phase catholyte-cathode catalyst-permionic membrane interface. The structure to carry this out may have electroconductive but electrolytically inactive portions of the cathode bonded to and embedded in the solid polymer electrolyte, and electrolytically active portions of the cathode extending outward from the permionic membrane into the catholyte. Alternatively, the cathode may compressively bear on a gel of permionic membrane material. Preferably the electrolytically active portions of the cathode extend out to about 1000 Angstroms into the catholyte, whereby to maintain the electrolysis within about 1000 Angstroms of the permionic membrane. The formation of hydroxyl ion within the permionic membrane is substantially avoided.