Process for the polymerization or copolymerization of ethylene

Details Process for the polymerization or copolymerization of ethylene Process for the polymerization or copolymerization of ethylene

C - Chemistry, Metallurgy

08

F

C08F 2/34 (2006.01) C08F 4/642 (2006.01) C08F 10/02 (2006.01) C08F 210/16 (2006.01) C08F 4/659 (2006.01) C08F 4/6592 (2006.01)

Patent

CA 2171215

In gas phase polymerization and copolymerisations of ethylene, temperature controls the molecular weight, expressed as MI (wherein MI is measured according to ASTM D-1238 Condition E), of the resin product. Increase in polymerization temperature produces decrease in MI; whereas, decrease in polymerization temperature produces increase in MI.

Dans les techniques de polymérisation et de copolymérisation en phase vapeur de l'éthylène, c'est la température qui commande la masse molaire, appelée MI (MI étant mesurée selon la norme ASTM D-1238 Condition E) du produit résine. Une augmentation de la température de polymérisation a pour effet de réduire MI alors qu'une diminution de cette même température produit une augmentation du MI.

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