Process for preparing in a single reactor polymer blends...

Details Process for preparing in a single reactor polymer blends... Process for preparing in a single reactor polymer blends...

C - Chemistry, Metallurgy

08

L

C08L 23/08 (2006.01) C08F 4/646 (2006.01) C08F 4/6592 (2006.01) C08L 23/10 (2006.01) C08L 23/16 (2006.01)

Patent

CA 2382182

Ethylene-based polymer blends having an MWD of at least 2 were made in a single reactor using a mixed constrained geometry catalyst (CGC) system. The process comprises the steps of contacting under polymerization conditions and in a single reaction vessel (i) ethylene, (ii) at least one C3-C20.alpha.-olefin, (iii) optionally, at least one polyene, and (iv) a mixed CGC system.

L'invention concerne des mélanges de polymères contenant de l'éthylène présentant une distribution de poids moléculaire (MWD) d'au moins 2, fabriqués dans un réacteur unique utilisant un système mixte de catalyseur à géométrie contrainte. Le procédé consiste à mettre en contact dans des conditions de polymérisation et dans une cuve de réaction unique (i) un éthylène, (ii) au moins une alpha -oléfine en C3-C20, (iii) éventuellement au moins un polyène, et (iv) un système mixte de catalyseur à géométrie contrainte.

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