| abstract |
The present invention provides an olefin polymerization catalyst exhibiting excellent polymerization activity, a method for polymerizing olefins using this catalyst, novel transition metal compounds useful for the catalyst, and an α-olefin / conjugated diene copolymer having specific properties. The olefin polymerization catalyst of the present invention includes a transition metal compound (A) of formula (I) or (II), an organometallic compound, an organoaluminum oxy compound or an ionizing ionic compound. The novel transition metal compound of the present invention is a compound of formula (I), wherein M is a transition metal atom of Group 3 or 4 of the periodic table, m is an integer of 1 to 3, R 1 is a hydrocarbon, and R 2 to R 5 are each H. , R 6 is a halogen, a hydrocarbon group and the like, n is a number satisfying the valence of M, X is a halogen, a hydrocarbon group and the like. |