Process for the preparation of cycloalkadienes
CA 1325642 C · Owner: Csellich, Christine · Inventors: Zeitler, Norbert; Meixner, Georg; Csellich, Christine
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the preparation of cycloalkadienes in a liquid phase by a metathesis reaction, is disclosed. The reaction takes place in the presence of a supported catalyst based on R?2O1/Al2O3 which includes bringing, a cyclopolyoctenylene or a cycloalkamonoene/cyclopolyoctenylene mixture cyclopolyoctenylene having a polymerization degree of at least three in the, form of a 0.005 - 0.2 molar solution at a residence time of 10 - 600 seconds into contact with the supported catalyst.
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 December 28, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 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.