Process for the preparation of ethylene polymers

A process for polymerizing ethylene comprising contacting under polymerization condition ethylene and optionally one or more olefins with a catalyst system obtainable by contacting: a bis amido compound of formula (I) wherein Y is Si, Ge and Sn; X is hydrogen, halogen or an hydrocarbon radical; R 1...

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Bibliographic Details
Main Authors Dall'Occo, Tiziano, Horton, Andrew, Ruisch, Bart, Hebel, Klaas, van Zon, Arie, Deuling, Henri, de Boer, Eric
Format Patent
LanguageEnglish
Published 20.05.2004
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Summary:A process for polymerizing ethylene comprising contacting under polymerization condition ethylene and optionally one or more olefins with a catalyst system obtainable by contacting: a bis amido compound of formula (I) wherein Y is Si, Ge and Sn; X is hydrogen, halogen or an hydrocarbon radical; R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , are hydrocarbon radical; Q is a neutral Lewis base; and m is 0-2; one or more boron activating cocatalysts and one or more aluminum alkyls or alumoxanes.