申请人:Chevalier Reynald
公开号:US20110294972A1
公开(公告)日:2011-12-01
The invention relates to transition metal complexes comprising a metal of group 3, 4, or 6 of the Periodic Table of the Elements and one, or two mono-anionic triazole ligands It has been found that these transition metal complexes which comprise at least one triazole fragment having a substituent with an unsaturated fragment are suitable as precatalysts for the polymerization of olefins. In these complexes one carbon atom of the unsaturated fragment is bound directly or via a bridge to a triazole group and the other carbon atom is bound to the transition metal. The complexes are useful as catalysts for olefin polymerization, a catalyst system comprising these complexes and a process for the polymerization of olefins under the use of the catalyst system.
该发明涉及过渡金属配合物,其中包括元素周期表第3、4或6族的金属和一个或两个单阴离子三唑配体。已经发现,这些包含至少一个带有不饱和片段取代基的三唑片段的过渡金属配合物适用于烯烃的预催化剂。在这些配合物中,不饱和片段的一个碳原子直接或通过桥连接到一个三唑基团,另一个碳原子与过渡金属结合。这些配合物可用作烯烃聚合的催化剂,包括这些配合物的催化剂体系以及在使用该催化剂体系下进行烯烃聚合的工艺。