Chemical compositions based on titanium trihalides, method for their preparation and their uses
CA 1111406 A · Owner: Anic S.P.A. · Inventors: Busetto, Carlo; Corbellini, Margherita; Gamba, Alessandro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel catalyst system for the polymerization or cop?lymerization of olefines, more particularly of ethylene is disclosed. For preparing the novel catalyst system a, tetravalent titanium compound (Ti IV is previously attached to a solid supporting member and thereafter is reacted with the vapor of at least one metal selected from the group consisting of Mg, Al, Ti, Zr, Mo, V, Mn, Cr, Fe and Zn in the presence, or not of a halogenated compound. Very high polymer yields are obtained and examples are given.
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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 27, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 1998.
- 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
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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.