Process for preparing polyolefins
CA 1137066 A · Owner: Nippon Oil Co. Ltd. · Inventors: Matsuura, Kazuo; Nakamura, Toru; Kuroda, Nobuyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is provided herein for preparing polyolefins by polymerizing or copolymerizing olefins using as the catalyst a titanium compound-containing solid component and an organometal compound. The solid component comprises a substance obtained by copulverizing (1) magnesium halide and/or manganese halide, (2) an organic halide compound (3) a chain or cyclic silicons compound with recurring structure unit represented by the general formula , wherein R' and R" respectively represent hydrogen, alkyl, aryl alkoxy or hydroxyl group and, (4) tetravalent and/or trivalent titanium compounds(s). The magnesium halide and/or manganese halide to the organic halide compound is in the range of from …
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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 December 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
- 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
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.