NOVEL OLEFIN POLYMERIZATION CATALYST AND PROCESS FOR POLYMERIZING OLEFIN BY USING THE SAME

摘要

A novel olefin polymerization catalyst comprising: (A) at least one transition metal compound represented by the following general formula: R<0>x R<1>a R<2>b R<3>c R<4>d M, wherein M represents a transition metal selected from the group consisting of zirconium, titanium and hafnium; R<1> represents a mono- or multidentate ligand; R<2>, R<3> and R<4> represent each independently a mono- or multidentate ligand, halogen, hydrogen, or alkyl, aryl or a derivative thereof; a is an integer of 1 or above, and b, c and d represent each an integer of 0 to 3, provided a+b+c+d=4; R<0> represents a bivalent group for binding R<1> to one group selected from among R<2>, R<3> and R<4>; and x is 0 or 1; (B) a solid inorganic component comprising an alkylated organoaluminumoxy compound supported on a particulate inorganic solid having hydroxyl groups on its surface; and (C) an organoaluminum compound. The use of this catalyst permits an olefin polymer excellent in particle properties and various material properties to be produced effectively and efficiently with a high polymerization activity without the necessity for conducting prepolymerization.