Transition metal complexes, catalyst compositions containing the same, and olefin polymerization using the catalyst compositions
申请人:Lee Hoon Choong
公开号:US20070010638A1
公开(公告)日:2007-01-11
Provided are a novel transition metal complex where a monocyclopentadienyl ligand to which an amine-based group is introduced is coordinated, a method of synthesizing the same, and olefin polymerization using the transition metal complex In the novel transition metal complex, an imino phenyl group is not cross-linked to a metal atom and directly introduced to a cyclopentadiene (Cp) ring. The catalyst composition including the transition metal compound is used to obtain a polyolefin copolymer having a very low density less than 0.910 g/cc.
TRANSITION METAL COMPLEXES, CATALYST COMPOSITIONS CONTAINING THE SAME, AND OLEFIN POLYMERIZATION USING THE CATALYST COMPOSITIONS
申请人:LEE Choong Hoon
公开号:US20090209712A1
公开(公告)日:2009-08-20
Provided are a novel transition metal complex where a monocyclopentadienyl ligand to which an amido or alcoxy group is introduced is coordinated, a method of synthesizing the same, and olefin polymerization using the transition metal complex. Compared to a conventional transition metal complex having a silicon bridge and an oxido ligand, the transition metal complex has a phenylene bridge, so that a monomer easily approaches the transition metal complex in terms of structure and a pentagon ring structure of the transition metal complex is stably maintained. The catalyst composition including the transition metal complex is used to synthesize a polyolefin copolymer having a very low density less than 0.910 g/cc.