Multistage polymerization process using a catalyst having...

Details Multistage polymerization process using a catalyst having... Multistage polymerization process using a catalyst having...

C - Chemistry, Metallurgy

08

F

C08F 10/02 (2006.01) C08F 4/659 (2006.01)

Patent

CA 2294588

The invention relates to a process for the preparation of an olefin polymer wherein olefin polymerization is effected in a plurality of polymerization reaction stages in the presence of an olefin polymerization catalyst material, characterised in that said catalyst material comprises at least two different types of active polymerization sites.

Cette invention a trait à un procédé permettant de préparer un polymère oléfinique. Selon ce procédé, la polymérisation de l'oléfine est réalisée au cours d'une série d'étapes réactionnelles de polymérisation et en présence d'une substance catalyseur de la polymérisation de l'oléfine. Ce procédé est caractérisé en ce que ladite substance catalyseur renferme au moins deux catégories différentes de sites actifs de polymérisation.

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