C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/644
C08F 10/02 (2006.01) C08F 4/64 (2006.01) C08F 10/00 (2006.01)
Patent
CA 1304882
- 20 - ABSTRACT OF THE DISCLOSURE A METHOD FOR PRODUCING OF AN ETHYLENE-BASED POLYMER The method of the invention for producing an ethylene- based polymer is characterized by the use of a catalyst system comprising, in combination with an organoaluminum compound such as triethyl aluminum, a solid catalytic ingredient prepared by a specific procedure comprising the steps of (a) contacting a mixture composed of a magnesium dialkoxide represented by the general formula Mg(OR') 2, in which R' is a monovalent hydrocarbon group, and a tetra- alkoxide of a metal represented by the general formula M'(OR2)4, in which M' is an atom of titanium or zirconium and R2 is a monovalent hydrocarbon group, with an alkanol to form a magnesium-containing solid complex, (b) reacting the magnesium-containing solid complex with a tetraalkoxide of a metal represented by the general formula M2(OR4)4 and/or tetrahalide of a metal represented by the general formula M2X'4, in which M2 is an atom of zirconium, when M is a titanium atom, or an atom of titanium, when Ml is a zirconium atom, R4 is a monovalent hydrocarbon group and X' is a halogen atom, and (c) reacting the reaction product obtained in step (b) above with an alkylaluminum halide represented by the general formula AlR5nX2 3 - n, in which R5 is an alkyl group, x2 is a halogen atom and n is 1 or 2.
568094
Nakacho Kenji
Tomotsu Norio
Idemitsu Petrochemical Company Limited
Kirby Eades Gale Baker
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