Transition metal compound, catalyst for addition polymerization, and process for producing addition polymer
申请人:——
公开号:US20020013433A1
公开(公告)日:2002-01-31
A transition metal compound (A) of the formula (1), a catalyst for addition polymerization obtained by bringing the transitionmetal compound to contact with (B) and/or (C) below, and a process for producing an addition polymer with the catalyst:
1
wherein, M represents a titanium atom, zirconium atom or hafnium atom in the +3 formal oxide condition; A represents a multidentate mono-anionic ligand; R
1
represents an alkyl group, aralkyl group, aryl group or substituted silyl group; E represents an oxygen atom or sulfur atom; each of two Xs independently represents a hydrogen atom, halogen atom, alkyl group, aralkyl group, aryl group, substituted silyl group, alkoxy group, aralkyloxy group, aryloxy group or di-substituted amino group, and two Xs may bond mutually to form a ring; D represents a neutral ligand coordinated on M; and n represents an integer of from 0 to 2.), (B)Organic aluminum compound and/or aluminoxane, (C)Specific boron compound.
一种过渡金属化合物(A)的化学式(1),通过将过渡金属化合物与以下的(B)和/或(C)接触获得的加成聚合催化剂,以及使用该催化剂生产加成聚合物的方法:其中,M代表+3形式氧化物条件下的钛原子、锆原子或铪原子;A代表多齿单阴离子配体;R1代表烷基、芳基烷基、芳基或取代硅基;E代表氧原子或硫原子;两个X独立地代表氢原子、卤素原子、烷基、芳基烷基、芳基、取代硅基、烷氧基、芳基氧基、芳基氧基或双取代氨基,两个X可以相互结合形成环;D代表配位在M上的中性配体;n代表从0到2的整数。)(B)有机铝化合物和/或铝烷氧化物,(C)特定的硼化合物。