CATALYST COMPLEX AND PROCESS FOR PRODUCING MULTIMODAL MOLECULAR WEIGHT POLYOLEFINS
申请人:Palackal Syriac
公开号:US20100168351A1
公开(公告)日:2010-07-01
Multinuclear catalyst complex comprising two or more active metal centres and at least one phenoxyimine compound and at least one substituted cyclopentadienyl, indenyl or fluorenyl derivative, each phenoxyimine compound being bonded to a cyclopentadienyl, indenyl or fluorenyl derivative forming a ligand framework, the cyclopentadienyl, indenyl or fluorenyl derivative being coordinated with one of the metal centres and the phenoxyimine compound being coordinated with an active metal centre other than the metal centre the cyclopentadienyl, indenyl or fluorenyl derivative is coordinated with, and wherein the phenoxyimine compound has the formula
wherein R
1
is hydrogen, alkyl, cycloalkyl, aryl or aralkyl;
R
2
is hydrogen, halogen, alkyl, cycloalkyl, aryl, O-alkyl or aralkyl; and
R
3
is alkyl, cycloalkyl, aryl or aralkyl, process for preparing a multinuclear catalyst composition comprising the steps of bonding a substituted phenoxyimine compound to a substituted cyclopentadienyl, indenyl or fluorenyl derivative to obtain a ligand framework and reacting at least one ligand framework with an active metal component and process for the polymerization of olefins, in particular of ethylene and optionally one or more other a-olefins, wherein said multinuclear catalyst is applied.
多核催化剂复合物包括两个或更多活性
金属中心和至少一个苯氧
亚胺化合物以及至少一个取代
环戊二烯基,
茚基或
芴基衍
生物,每个苯氧
亚胺化合物与
环戊二烯基,
茚基或
芴基衍
生物形成
配体框架,
环戊二烯基,
茚基或
芴基衍
生物与
金属中心之一配位,苯氧
亚胺化合物与除了
环戊二烯基,
茚基或
芴基衍
生物配位的活性
金属中心配位,其中苯氧
亚胺化合物具有式子
其中,R1为氢,烷基,环烷基,芳基或芳基烷基;R2为氢,卤素,烷基,环烷基,芳基,O-烷基或芳基烷基;R3为烷基,环烷基,芳基或芳基烷基。制备多核催化剂组合物的方法包括将取代苯氧
亚胺化合物与取代
环戊二烯基,
茚基或
芴基衍
生物配对以获得
配体框架,并将至少一个
配体框架与活性
金属组分反应。本发明还涉及一种聚合烯烃,特别是
乙烯和可选的一种或多种其他α-烯烃的方法,其中应用所述的多核催化剂。