C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
252/105, 400/205
C08F 4/02 (2006.01) C01F 5/32 (2006.01) C08F 4/64 (2006.01) C08F 10/00 (2006.01)
Patent
CA 1129840
ABSTRACT OF THE DISCLOSURE The invention relates to a catalyst system and process for the polymerization of 1-alkenes or the copolymerization of 1-alkenes with each other or with ethylene, wherein use is made of a catalyst system that contains a titanium halogenide component on an at least virtually anhydrous magnesium halogenide support and an organoalumonum component containing a complex of an organic aluminum compound with an ester of an oxygen-containing organic acid characterized in that the support used is a magnesium halogenide that is also at least virtually free of magnesium oxide and which has been prepared by heating a magnesium halogenide containing water and/or magnesium oxide in a gaseous flow of carbon halogenide vapor and/or a mixture of carbon monoxide and a halogen. The process according to the invention offers a high polymer yield per gram of Ti compound used and with very high contents of isotactic polymer and is useful for the production of isotactic polymer products having a high degree of stereospecificity.
314680
Fetherstonhaugh & Co.
Stamicarbon B.v.
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