Process for the polymerisation and copolymerisation of ethylene, using a gas injection device
CA 1069250 A · Owner: Societe Anonyme Dite: Societe Chimique Des Charbonnages · Inventors: Durand, Pierre; Jouffroy, Guy; Charlon, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for the polymerisation and copolymerisation of ethylene under a pressure greater than 1000 bars and ethylene injector for carrying out this process, wherein the mixture of polymer and of monomer coming from the reactor is cooled by injection, of the monomer between the let-down valve and the separator at a pressure lower than that of the separator. The injector comprises a nozzle of throat cross-section S1 and a diffuser of throat cross-section S3 such that, q and 0 being the flow rates of the drawn fluid and of the motive fluid respectively, Q/S1 is between 0.20 and 1.35 t/hr.mm2 and , is between 0.10 and 0.30 t/hr.mm2. The invention enables the quality of the polymer to be …
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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 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 1, 1997.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.