C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 2/58 (2006.01) B01J 8/24 (2006.01) B01J 19/00 (2006.01) C08F 2/34 (2006.01) C08F 10/00 (2006.01)
Patent
CA 2112500
ABSTRACT OF THE DISCLOSURE A method for polymerizing or copolymerizing .alpha.-olefin in a vapor phase condition by supplying to a reactor a catalyst composed of a solid catalyst component containing at least titanium and/or vanadium as well as magnesium and an organic aluminum compound wherein the current due to the electric charge transferred from polymer particles electrified to an electrode disposed at a position where sheet-like polymers will be produced in a reactor, as a result of contact of the polymer particles in the reactor with the electrode is determined, and the polymerization or copolymerization is carried out under such condition where the mean value of current is zero or a positive value. As a result, it becomes possible to prevent production of sheet-like polymers and to stably continue the reaction for polymerization.
Kobayashi Eiko
Kubo Kunimichi
Niwa Masahiro
Yoshikawa Mamoru
Gowling Lafleur Henderson Llp
Nippon Petrochemicals Company Limited
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