Method for forming a solid polymer electrolyte structure
CA 1323556 C · Owner: The Dow Chemical Company · Inventors: Birdwell, Jeffrey D.; Smith, Bruce R.; Mcintyre, John M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is a method for forming a solid polymer electrolyte (SPE) structure comprising the steps of heating a fluorocarbon membrane, while it is in its thermoplastic form, contacting a plurality of catalytically active, electrically conductive particles with the fluorocarbon membrane while the membrane is in its thermoplastic form, subjecting the membrane/combination to pressure, contacting the membrane particle combination with an electrically conductive, hydraulically permeable matrix and, subjecting the combination to pressure thereby forming a laminate having a membrane on one side a matrix on, another side and a plurality of catalytically active particles therebetween. The SPE is …
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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 October 26, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 26, 2010.
- 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.