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. 03, 1981
Filed:
Jan. 24, 1979
William W Carlin, Portland, TX (US);
William B Darlington, Portland, TX (US);
Donald W DuBois, Corpus Christi, TX (US);
Roseanne M Woo, Corpus Christi, TX (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
Disclosed is an electrolytic cell having an anode, a cathode, and a synthetic fluoro-carbon-resin permionic membrane between the anode and cathode. The improvement is characterized by the fluorocarbon-resin permionic membrane being a fluorinated copolymer having carboxylic acid ion exchange groups and the cathode having a catalytic, non-ferrous surface. Also disclosed is a process of producing an alkali metal hydroxide by electrolyzing an aqueous alkali metal chloride brine in an electrolytic cell having the anode separated from a catalytic, non-ferrous cathode by a synthetic fluorocarbon-resin permionic membrane having carboxylic acid ion exchange groups.