Preparation of Ziegler-Natta type catalyst systems by contacting inorganic metal oxide with tetravalent titanium compound, and contacting obtained intermediate with magnesium compound, with halogenating reagent and then with donor compound

摘要

Preparation of Ziegler-Natta type catalyst systems includes bringing an inorganic metal oxide into contact with a tetravalent titanium compound; bringing the obtained intermediate into contact with a magnesium compound; bringing the obtained intermediate into contact with a halogenating reagent; and then, bringing the obtained intermediate into contact with a donor compound. Preparation of Ziegler-Natta type catalyst systems includes bringing an inorganic metal oxide into contact with a tetravalent titanium compound; bringing the obtained intermediate into contact with a magnesium compound MgR 1> nX 1> 2 - n; bringing the obtained intermediate into contact with a halogenating reagent; and then, bringing the obtained intermediate into contact with a donor compound. X 1>F, Cl, Br, I, H, N(R-X) 2, O(R-X), SO 3(R-X) or OC(O)R-X; R 1>, R-X : 1-20C alkyl, 2-10C alkenyl, alkylaryl having 1-10C in the alkyl part and 6-20C in the aryl part or 6-18C aryl;and n : 1 or 2. Independent claims are also included for: (1) a prepolymerized catalyst system, comprising a catalyst system as prepared by the above process; and linear 2-10C-1-alkenes polymerized onto the catalyst system in a mass ratio of 1:0.1-1:200; and (2) a process for the polymerization or copolymerization of olefins at 20-150[deg]C and pressures of 1-100 bar in the presence of catalyst system(s) as above and, if appropriate, an aluminum compound as co-catalyst.