Halogen substituted heteroatom-containing metallocene...

Details Halogen substituted heteroatom-containing metallocene... Halogen substituted heteroatom-containing metallocene...

2011-01-11

2011-01-11

Lu, Caixia (Department: 1796)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

C556S042000, C556S057000, C502S103000, C502S152000, C502S155000, C526S160000, C526S161000, C526S165000, C526S943000

Reexamination Certificate

active

07868197

ABSTRACT:
Halogen substituted metallocene compounds are described and comprise one or more monocyclic or polycyclic ligands that are pi-bonded to the metal atom and include at least one halogen substituent directly bonded to an sp2carbon atom at a bondable ring position of the ligand, wherein the or at least one ligand has one or more ring heteroatoms in its cyclic structure. When combined with a suitable activator, these compounds show activity in the polymerization of olefins, such as ethylene and propylene.

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