Process for the preparation of ethylene copolymers using...

Details Process for the preparation of ethylene copolymers using... Process for the preparation of ethylene copolymers using...

C - Chemistry, Metallurgy

07

F

C07F 17/00 (2006.01) C08F 10/02 (2006.01) C08F 210/16 (2006.01) C08F 4/659 (2006.01)

Patent

CA 2467890

A process is described for the preparation of ethylene copolymers having a wide molecular weight distribution, characterized in that it is carried out in the presence of meso- and rac- stereoisomeric mixtures of metallocene compounds having general formula (I), wherein A' and A'', the same or different, are a radical of the .eta.5-tetrahydroindenyl type (Ia).

La présente invention concerne un procédé de préparation de copolymères d'éthylène présentant une distribution de poids moléculaire étendue, caractérisé en ce qu'il est exécuté en présence de mélanges stéréo-isomériques méso et rac de composés métallocènes de formule générale (I), où A' et A'', identiques ou différents, représentent un radical du type .eta.?5¿-tétrahydroindényle (Ia).

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