The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 2011
Filed:
Mar. 07, 2011
Choong Hoon Lee, Daejeon, KR;
Eun Jung Lee, Daejeon, KR;
Seungwhan Jung, Suwon, KR;
Boram Lee, Seoul, KR;
Jung a Lee, Daejeon, KR;
Bun Yeoul Lee, Suwon, KR;
Choong Hoon Lee, Daejeon, KR;
Eun Jung Lee, Daejeon, KR;
Seungwhan Jung, Suwon, KR;
Boram Lee, Seoul, KR;
Jung A Lee, Daejeon, KR;
Bun Yeoul Lee, Suwon, KR;
LG Chem, Ltd., , KR;
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.