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Expired Canadian patentCanada

Catalyst components for alpha olephine-polymerizing catalysts and procedure for manufacturing same

CA 1302385 C · Owner: Neste Oy · Inventors: Garoff, Thomas

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Abstract From the Canadian patent

A catalyst component for alpha olefine-polymerizing catalysts which comprise an organoaluminum compound an external, electron donor, and a solid catalyst compound obtained when a solid carrier component containing magnesium has reacted with a titanium halide compound, in addition to a procedure for manufacturing the same. The catalyst component is produced by reacting a solid carrier component with a titanium halide compound with or without the presence of an internal electron donor. The solid carrier component is prepared by:, (a) mixing an aqueous solution or alcoholic suspensions of magnesium sulfate with an aqueous Or alcoholic solution of barium or calcuim chloride, (b) separating the …

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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 1, 1987
GrantedJune 2, 1992
Term endedJune 2, 2009
Patent numberCA 1302385 C
Classification (IPC)C08F4/64 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedApril 1, 1987Patent grantedJune 2, 1992Term endedJune 2, 2009

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.