Bimetallic complexes and polymerization catalysts therefrom

Details Bimetallic complexes and polymerization catalysts therefrom Bimetallic complexes and polymerization catalysts therefrom

C - Chemistry, Metallurgy

07

F

C07F 17/00 (2006.01) C08F 10/00 (2006.01) C08F 4/659 (2006.01)

Patent

CA 2303519

Group 3-6 or Lanthanide metal complexes possessing two metal centers, catalysts derived therefrom by combining the same with strong Lewis acids, Bronsted acid salts, salts containing a cationic oxidizing agent or subjected to bulk electrolysis in the presence of compatible, inert non-coordinating anions and the use of such catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers are disclosed.

L'invention concerne des complexes métalliques appartenant aux groupes 3-6 ou aux lanthanides, et présentant deux centres métalliques. L'invention concerne également des catalyseurs dérivés de ces complexes par combinaison de ceux-ci avec de forts acides de Lewis, sels d'acide de Brönsted, ou sels renfermant un agent d'oxydation cationique, ces catalyseurs pouvant être soumis à une électrolyse volumétrique en présence d'anions compatibles inertes non coordonnants. L'invention concerne enfin l'utilisation de ces catalyseurs pour polymériser des oléfines, des dioléfines, et/ou des monomères insaturés en acétylène.

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