Composite membrane/electrode electrochemical cell and electrolysis process
CA 1208166 A · Owner: E. I. Du Pont De Nemours And Company · Inventors: Johnson, Bruce B.; Li, Stephen; Copeland, Terry M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE, Composite Membrane/Electrode, Electrochemical Cell and Electrolysis Process ABSTRACT OF THE DISCLOSURE, A composite membrane/electrode a process for, making same, an electrochemical cell and a process for electrolysis of alkali metal halides especially, sodium chloride, are disclosed. The composite membrane/ electrode consists of an ion-exchange membrane which is impermeable to hydraulic flow of liquid and which comprises at least two layers of perfluorinated ionexchange polymer each having an equivalent weight up to about 1500. Adjacent layers of the membrane are in adherent contact with each other. A first layer is of a polymer with - SO3M functional groups and a second layer is of …
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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
- Granted July 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 2003.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.