Gas diffusion electrode, device and process for the production of hydrogen peroxide
CA 2498734 C · Owner: Dodelet, Jean-Pol · Inventors: Roue, Lionel; Trevin, Stephane; Marcotte, Sebastien
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a gaseous diffusion electrode preferably cathode, and comprising a catalyst,used in a two-compartment electrolytic cell the compartments being separated by an ion exchange membrane for the production of hydrogen peroxide. The electrode comprises a catalytic layer a support layer and a hydrophobic layer ; the support layer is inserted between the catalytic and hydrophobic layers. The catalytic layer comprises a catalyst consisting of a derivative of 5,10,15,20-tetrakis(4-methoxyphenyl)21H,23H Porphyrin Cobalt II(CoTMPP). The content of CoTMPP (as wt. of Co to C) is less than or equal to 0.5% more preferaby 0.2% max. Method of implementing such a device. Gaseous …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 28, 2005 and granted October 16, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.