Olefin polymerization catalyst composition having increased...

C - Chemistry – Metallurgy – 08 – F

Patent

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C08F 10/00 (2006.01) C08F 4/609 (2006.01) C08F 4/6592 (2006.01) C08F 210/16 (2006.01)

Patent

CA 2277224

The invention relates to a method for preparing an activated catalyst composition comprising a single site catalyst precursor and an activating cocatalyst, which comprises contacting outside of a polymerization reactor a single site catalyst precursor with an activating cocatalyst before, during, or after contacting the single site catalyst precursor with a weakly coordinating electron donor.

La présente invention se rapporte à un procédé de préparation d'une composition faisant office de catalyseur activé et contenant un précurseur de catalyseur à site unique et un cocatalyseur d'activation. Ledit procédé consiste à mettre en contact, hors d'un réacteur de polymérisation, un précurseur de catalyseur à site unique avec un cocatalyseur d'activation avant, pendant ou après la mise en contact du précurseur de catalyseur à site unique et d'un donneur d'électrons à faible capacité de coordination.

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