Linear, very low density polyethylene polymerization process...

Details Linear, very low density polyethylene polymerization process... Linear, very low density polyethylene polymerization process...

C - Chemistry, Metallurgy

08

F

C08F 210/00 (2006.01) C08F 2/06 (2006.01) C08F 210/02 (2006.01) C08F 210/08 (2006.01) C08F 210/14 (2006.01) C08F 210/16 (2006.01)

Patent

CA 2081798

A copolymer of ethylene and a higher alpha-olefin, preferably 1-butene and/or 1-hexene, can be produced using an activated and subsequently carbon monoxide reduced chromium containing catalyst system and an alkylaluminum or alkylboron cocatalyst. The polymerization process must be carefully controlled to produce a copolymer resin that can be made into a tough product, with an increased melt index and a broad molecular weight distribution.

Méthode permettant de produire un copolymère d'éthylène et une alpha-oléfine supérieure, préférablement du but-1-ène et/ou de l'hex-1-ène, à partir d'un système catalyseur renfermant du chrome activé et subséquemment réduit à l'oxyde de carbone ou un cocatalyseur à base d'alkylaluminium ou d'alkylboron. Il faut contrôler minutieusement l'étape de la polymérisation pour obtenir une résine de copolymère transformable en produits résistants, possédant un indice de fusion accru et une large répartition des poids moléculaires.

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