Catalyst components and catalysts for the polymerization of olefins
CA 1204724 A · Owner: Montedison S.P.A. · Inventors: Banzi, Viviano; Barbe, Pier C.; Noristi, Luciano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Catalyst components for the stereoregular polymerization of alpha-olefins, comprising a Ti halide and an electron- -donor compound supported on an anhydrous magnesium diha lide and obtained by means of non-extractive treatments with liquids having a dielectric constant at 20 °C equal to or higher than 2, of compositions comprising an anhydrous Mg dihalide, the crystallites of which have an average size lower than 300 .ANG..
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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 May 20, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 2003.
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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.