Production of methyldichlorophosphane
CA 1087206 A · Owner: Hoechst Aktiengesellschaft · Inventors: Schafer, Stefan; Bylsma, Friedhelm; Riechmann, Wernfried
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Production of methyldichlorophosphane. The compound is made by reacting methane and phosphorus trichloride in a reaction zone in which a temperature higher than 500°C is maintained. More specifically hot reaction gas coming from, the reaction zone is mechanically freed from solid matter, and the reaction gas freed from solid matter is passed to a quenching zone in which it is quenched with liquefied reaction mixture having 0.3 to 5 weight% of an organic barium compound or a non-ionic surfactant dissolved therein.
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 7, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 1997.
- 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.