C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/04 (2006.01)
Patent
CA 2631052
A polyethylene composition, in particular suitable for the preparation of films, and a process for preparing the same are described. The polyethylene composition of the invention comprises from 50 to 89 % by weight of a first polyethylene component comprising at least one multimodal polyethylene including a plurality of ethylene polymer fractions having distinct molecular weights and comonomer contents, at least one of said plurality of ethylene polymer fractions being prepared by the use of a single site catalyst, and from 50 to 11 % by weight of a second polyethylene component comprising a low or medium density polyethylene.
L~invention concerne une composition de polyéthylène particulièrement adaptée à la fabrication de films, ainsi que son procédé de fabrication. La composition de polyéthylène selon l~invention comprend de 50 à 89 % en poids d~un premier composant de polyéthylène comprenant au moins un polyéthylène multimodal comprenant une pluralité de fractions de polymère d~éthylène ayant des poids moléculaires distincts et des teneurs en comonomère distinctes, au moins une desdites fractions de polymère d~éthylène étant préparée en utilisant un catalyseur à site unique, et de 50 à 11 % en poids d~un second composant de polyéthylène comprenant un polyéthylène de densité faible ou moyenne.
Auffermann Joerg
de Lange Paulus
Hecker Manfred
Karer Rainer
Kipke Jennifer
Basell Polyolefine Gmbh
Robic
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