| abstract |
(57) [Summary] (Modifications) [Problem] To obtain a high molecular weight olefin polymer having a narrow composition distribution by using a catalyst containing a novel metallocene complex. A pressure of 13 kg / cm 2 G or more and 13 kg / cm 2 G or more. Production of an olefin (co) polymer which is homopolymerized or copolymerized at 0 ° C. or higher using an olefin polymerization catalyst comprising a transition metal complex represented by the formula [I], an organoaluminum compound and a boron compound. Method. (M 1 , A, and J are groups 4 and 16 of the periodic table, respectively) Group, group 14 transition metal atoms, Cp 1 represents a group having a cyclopentadiene-type anion skeleton, and X 1 , X 2 , and R 1 to R 6 represent hydrogen, halogen, an alkyl group, etc.) |