申请人:Basell Poliolefine Italia S.p.A.
公开号:US20040147695A1
公开(公告)日:2004-07-29
A new class of methylene-bridged metallocenes of formula (I), wherein M is a transition metal of group 3, 4, 5, 6, lanthanide or actinide; X is a monoanionic sigma ligand; R
1
can be alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl radicals; R
2
can be halogen, alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl radical; p is 0-3; m is 0-2; and n is 0-4. Furthermore, the corresponding ligands, a new process for their preparation and catalysts systems containing said methylene-bridged metallocenes are described.
1
一种新的甲基桥联金属茂的类别,其化学式为(I),其中M为3、4、5、6族过渡金属、镧系或锕系金属;X为单负离子σ配体;R1可以是烷基、环烷基、芳基、烷基芳基或芳基烷基基团;R2可以是卤素、烷基、环烷基、芳基、烷基芳基或芳基烷基基团;p为0-3;m为0-2;n为0-4。此外,还描述了相应的配体、其制备的新工艺以及含有该甲基桥联金属茂的催化剂系统。