Method of preparing a supported ziegler-catalyst for the polymerisation of alpha-olefins
CA 1205448 A · Owner: Enichimica Secondaria S.P.A. · Inventors: Ligorati, Ferdinando; Invernizzi, Renzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of preparing a supported Ziegler-catalyst active in the polymerisation of alpha-olefins to polymers particularly suited to working by blow-moulding by, reacting:, A) an organometallic compound of aluminium and, B) the product of the reaction of titanium and vanadium halides with a solid support obtained by the spray drying of magnesium chloride in a mixed solution of ethanol and methanol, the support containing both ethanolic and methanolic alcoholic hydroxyl groups.
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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 3, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 3, 2003.
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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.