Catalyst component comprising magnesium, titanium, a halogen and an electron donor, its preparation and use
CA 2315214 A1 · Owner: Garoff, Thomas · Inventors: Leinonen, Timo; Ala-Huikku, Sirpa; Garoff, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a novel process for the preparation of an olefin polymerization catalyst component comprising magnesium titanium, a halogen , and an electron donor. The process comprises the steps of: (i) reacting a titaniumless magnesium compound (a) containing an alkoxy moiety which , titaniumless magnesium compound is selected from the group consisting of a compound or complex containing halogen and alkoxy linked to magnesium a , complex containing a magnesium dihalide and an alcohol and a non-complex , magnesium dialkoxide with a halogen compound (b) being capable of forming the electron donor by replacement of its halogen by said alkoxy moiety to give an , intermediate …
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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
- Filed December 21, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2020.
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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.