Chlorotrifluoroethylene telomerization process
CA 1231726 A · Owner: Gabriel Performance Products, Llc. · Inventors: Saran, Mohan S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved process for preparing telomers of chlorotrifluoroethylene comprises the solution telomerization reaction of chlorotrifluoroethylene with carbon tetrachloride in the presence of a catalytic amount of ferric chloride (FeCl3) and a reductant selected from the group consisting of iron nickel, cobalt, vanadium, molybdenum, chromium their alloys and mix-, tures thereof. Preferably the solvent for the system com-, prises acetonitrile and the telomerization is carried out, under elevated pressure conditions and at a temperature in the range of from about 90°C to about 150°C. The crude telomer prepared by this process can be fluorinated to produce a stabilized oil or grease.
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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 January 19, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 2005.
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Timeline
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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.