Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2011-04-19
2011-04-19
Lu, Caixia (Department: 1796)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C526S133000, C526S160000, C526S161000, C526S165000, C526S172000, C526S943000, C502S103000, C502S104000, C502S152000, C502S155000
Reexamination Certificate
active
07928256
ABSTRACT:
Provided are a novel transition metal complex where a monocyclopentadienyl ligand to which an amido group is introduced is coordinated, a catalyst composition including the same, and an olefin polymer using the catalyst composition.The transition metal complex has a pentagon ring structure having an amido group connected by a phenylene bridge in which a stable bond is formed in the vicinity of a metal site, and thus, a sterically hindered monomer can easily approach the transition metal complex. By using a catalyst composition including the transition metal complex, a linear low density polyolefin copolymer having a high molecular weight and a very low density polyolefin copolymer having a density of 0.910 g/cc or less can be produced in a polymerization of monomers having large steric hindrance. Further, the reactivity for the olefin monomer having large steric hindrance is excellent.
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Jung Seungwhan
Lee Boram
Lee Bun Yeoul
Lee Choong Hoon
Lee Eun Jung
Cantor & Colburn LLP
LG Chem Ltd.
Lu Caixia
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