Continuous method for producing pentafluoroethyl iodide
CA 2295220 A1 · Owner: Paul, Norbert · Inventors: Richter, Hans-Bodo; Paul, Norbert; Huber, Rudolf
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 continuous method for producing pentafluoroethyl iodine, iodine pentafluoride and tetrafluoroethylene characterized in that , the iodine is dissolved in iodine pentafluoride and the solution obtained is continuously fed to a vertical bubble column (1) which is filled with iodine , pentafluoride and which has a tetrafluoroethylene feed line on its lower end wherein the reaction area is maintained at 85 to 95 ~C preferably 90 ~C and , the formed pentafluoroethyl iodide is released in the form of a gas in the head of the reactor (1), is liquefied in a downstream cooled condenser and stored in vessels.
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
- Filed June 26, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2020.
- 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.