Components and catalysts for the polymerization of olefins

Details Components and catalysts for the polymerization of olefins Components and catalysts for the polymerization of olefins

C - Chemistry, Metallurgy

08

F

C08F 10/00 (2006.01) C08F 4/623 (2006.01) C08F 4/639 (2006.01) C08F 110/02 (2006.01) C08F 210/16 (2006.01)

Patent

CA 2171296

Components of bimetallic catalysts for the polymerization of olefins comprising a compound of a transition metal M selected from Ti, V, Zr and Hf containing at least one M-.pi. bond, a compound of Ti or V not containing metal-.pi. bonds and a support comprising a magnesium halide. The catalysts obtained from the components of the invention are particularly suitable for gas-phase polymerization processes.

L'invention concerne des composants de catalyseurs bimétalliques pour la polymérisation d'oléfines contenant un composé d'un métal de transition M choisi parmi Ti, V, Zr et Hf, renfermant au moins une liaisons M-.pi., un composé de Ti ou de V ne contenant pas de liaison métal-.pi. et un support constitué d'un halogénure de magnésium. Les catalyseurs obtenus à partir des composants de l'invention sont particulièrement utiles pour les procédés de polymérisation en phase gazeuse.

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