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:
Sep. 28, 2010
Filed:
Jul. 19, 2004
Fritz Gestermann, Leverkusen, DE;
Hans-dieter Pinter, Wermelskirchen, DE;
Rainer Weber, Odenthal, DE;
Gerd Speer, Burscheid, DE;
Andreas Bulan, Langenfeld, DE;
Fritz Gestermann, Leverkusen, DE;
Hans-Dieter Pinter, Wermelskirchen, DE;
Rainer Weber, Odenthal, DE;
Gerd Speer, Burscheid, DE;
Andreas Bulan, Langenfeld, DE;
Bayer MaterialScience AG, Leverkusen, DE;
Abstract
The invention describes an electrochemical cell for the electrolysis of an aqueous solution of hydrogen chloride, comprising at least an anode half-cell with an anode, a cathode half-cell with a gas diffusion electrode as cathode and an ion exchange membrane arranged between the anode half-cell and the cathode half-cell, the membrane consisting of at least a perfluorosulfonic acid polymer, wherein the gas diffusion electrode and the ion exchange membrane are adjacent to each other, characterised in that the gas diffusion electrode and the ion exchange membrane, under a pressure of 250 g/cmand at a temperature of 60° C., have a contact area of at least 50%, with respect to the geometric area.