Copolymerization of ethylene and hexene-1 in fluidised bed
CA 1212500 A · Owner: Bp Chimie Societe Anonyme · Inventors: Vidal, Jean L.; Morterol, Frederic
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Copolymerisation of Ethylene and Hexene-1 in a Fluidised Bed, Process for the preparation of copolymers of ethylene and hexene-1 with a density comprised between 0.910 and 0.940 involving, a copolymerisation of ethylene and hexene-1 in the gas phase by means on d fluidised bed, in the presence of a catalyst system comprising on the one hand a co-catalyst consisting of at least one organo-metallic compound of a metal of Groups II and III of the Periodic Table of Elements and on the other hand a supported catalyst comprising a special support based essentially on magnesium chloride and optionally aluminium chloride on which support there, has been precipitated a derivative of a transition …
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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 October 7, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 2003.
- 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.