Iron complexes and their use in polymerization processes

C - Chemistry – Metallurgy – 07 – D

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C07D 213/36 (2006.01) C08F 4/70 (2006.01) C08F 10/02 (2006.01)

Patent

CA 2679131

Specific iron complexes (A), a catalyst system for polymerization of olefins comprising at least one metal complex (A) and/or (A'), a prepolymerized catalyst system, the use of these catalyst systems for the polymerization of olefins, and a process for the preparation of polyolefins by polymerization or copolymerization of olefins in the presence of one of the described catalyst systems.

L'invention concerne des complexes de fer (A) spécifiques, un système de catalyse pour la polymérisation d'oléfines comprenant au moins un complexe métallique (A) et/ou (A'), un système de catalyse prépolymérisé, l'utilisation de ces systèmes de catalyse pour la polymérisation d'oléfines, ainsi qu'un procédé destiné à la préparation de polyoléfines par polymérisation ou copolymérisation d'oléfines en présence d'un des systèmes de catalyse décrits.

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