Transition metal carbon composites and methods for making
CA 1322648 C · Owner: Labes, Mortimer M. · Inventors: Labes, Mortimer M.; Chen, Jiann-Hsing
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a method of preparing a carbon-transition metal composite. The method comprises heating polycyanogen in the presence of transition metal or a salt thereof in an oxygen-free environment to at least 400°C. The polycyanogen is held at that temperature for a time sufficient to form a pyropolymer and to form a composite containing pyrolyzed polycyanogen and a transition metal. The carbon to nitrogen ratio of the pyropolymer is at least 1.2. The carbon-transition metal composite prepared can be used in the preparation of fibers, films and powders.
Read the whole patent
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 5, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 5, 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.