Useful as a catalyst component for polymerizing olefin is the transition metal compound of the present invention represented by Formula (I):
wherein M represents a transition metal compound of the fourth group in the periodic table; X represents a &sgr; bonding ligand; Y represents a Lewis base; T represents a group containing a &sgr; bonding atom; E is a specific group containing an atom which can coordinate with M via a lone pair; q is 1 or 2 and represents [(valency of M)−2]; r represents an integer of 0 to 3; R1 to R4 represent a hydrogen atom, a halogen atom, a hydrocarbon group, a halogen-containing hydrocarbon group, a silicon-containing group or a hetero atom-containing group.
本发明中用于聚合烯烃的催化剂组分是由式(I)表示的过渡
金属化合物,其中M代表周期表中第四组的过渡
金属化合物;X代表一个σ键合
配体;Y代表一个路易斯碱;T代表一个含有σ键合原子的基团;E是一个特定的含有可以通过孤对电子与M配位的原子的基团;q为1或2,表示[(M的价数)-2];r表示0到3的整数;R1至R4代表氢原子、卤素原子、烃基团、含卤素的烃基团、含
硅基团或含杂原子的基团。