Process for producing polyethylene

Details Process for producing polyethylene Process for producing polyethylene

C - Chemistry, Metallurgy

08

F

C08F 10/02 (2006.01) C08F 4/649 (2006.01) C08F 10/00 (2006.01) C08F 210/16 (2006.01)

Patent

CA 2341882

A novel process for producing homopolymers and copolymers of ethylene which involves contacting ethylene and/or ethylene and at least one or more other olefin(s) under polymerization conditions with a Ziegler-Natta type catalyst, at least one halogenated hydrocarbon, at least one compound of the formula XnER3-n as a co-catalyst and at least one compound containing at least one carbon-oxygen-carbon linkage (C-O-C) of the formula R1-O(-R2-O)n-R3 as an external electron donor. Also provided are films and articles produced therefrom.

Cette invention se rapporte à un nouveau procédé de production d'homopolymères et de copolymères d'éthylène, qui consiste à mettre en contact de l'éthylène et/ou de l'éthylène et au moins une ou plusieurs autres oléfines dans des conditions de polymérisation avec un catalyseur de type Ziegler-Natta, au moins un hydrocarbure halogéné, au moins un composé de formule X¿n?ER¿3-n? comme cocatalyseur et au moins un composé contenant au moins une liaison carbone-oxygène-carbone (C-O-C) de formule R?1¿-O(-R?2¿-O)¿n?-R?3¿ comme donneur d'électrons externes. Cette invention concerne également des films et des particules ainsi produits.

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