Polymerization catalysts for producing high melt index...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing

Reexamination Certificate

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C556S012000, C502S120000, C502S158000, C526S128000, C526S160000, C526S943000

Reexamination Certificate

active

07026494

ABSTRACT:
Various catalyst compositions including the contact product of at least one ansa-metallocene compound, at least one organoaluminum compound, and at least one activator-support are disclosed. Processes for forming such compositions and for forming polyolefins with such compositions are also disclosed. Metallocene compounds are also presented.

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