申请人:Sumitomo Chemical Company, Limited
公开号:US06066704A1
公开(公告)日:2000-05-23
A transition metal complex represented by the formula [1] ##STR1## wherein M is a transition metal atom of the group 4 of the periodic table of elements; Cp is a group having a cyclopentadiene type anionic skeleton; A and G are each a divalent residue containing an atom of the group 15 or 16 of the periodic table of elements and may be the same with or different from each other; X.sup.1, X.sup.2, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently a hydrogen atom, halogen atom, alkyl group with the number of carbon atoms of 1-20 optionally substituted with at least one halogen atom, aralkyl group with the number of carbon atoms of 7-20 optionally substituted with at least one halogen atom, aryl group with the number of carbon atoms of 6-20 optionally substituted with at least one halogen atom, substituted silyl group with the number of carbon atoms of 1-20 optionally substituted with at least one halogen atom, alkoxy group with the number of carbon atoms of 1-20 optionally substituted with at least one halogen atom, aralkyloxy group with the number of carbon atoms of 7-20 optionally substituted with at least one halogen atom, aryloxy group with the number of carbon atoms of 6-20 optionally substituted with at least one halogen atom or a di-substituted amino group with the number of carbon atoms of 2-20, provided that R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may optionally combine with each other to form a ring; L is a Lewis base and w is an integer of 0-2, an olefin polymerization catalyst and a process for producing olefin polymers which uses the catalyst.
一种由以下公式表示的过渡金属配合物 [1] ##STR1## 其中M是元素周期表第4族的过渡金属原子;Cp是具有环戊二烯型阴离子骨架的基团;A和G分别是含有元素周期表第15或16族原子的二价残基,彼此可以相同也可以不同;X.sup.1、X.sup.2、R.sup.1、R.sup.2、R.sup.3和R.sup.4分别独立地是氢原子、卤素原子、碳原子数为1-20的烷基基团,可选择地用至少一个卤素原子取代,碳原子数为7-20的芳基烷基基团,可选择地用至少一个卤素原子取代,碳原子数为6-20的芳基基团,可选择地用至少一个卤素原子取代,碳原子数为1-20的取代硅基团,可选择地用至少一个卤素原子取代,碳原子数为1-20的烷氧基团,可选择地用至少一个卤素原子取代,碳原子数为7-20的芳基烷氧基团,可选择地用至少一个卤素原子取代,碳原子数为6-20的芳氧基团,可选择地用至少一个卤素原子取代或碳原子数为2-20的二取代氨基团,前提是R.sup.1、R.sup.2、R.sup.3和R.sup.4可以选择地结合在一起形成环;L是一种路易斯碱,w是0-2的整数,一种烯烃聚合催化剂以及使用该催化剂生产烯烃聚合物的方法。