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:
Sep. 01, 2015
Filed:
May. 10, 2013
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Heon-Yong Kwon, Daejeon, KR;
Yong-Ho Lee, Daejeon, KR;
Kyoung-Chan Lim, Daejeon, KR;
Ki-Soo Lee, Daejeon, KR;
Min-Seok Cho, Daejeon, KR;
Assignee:
LG Chem, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/78 (2006.01); C08F 4/52 (2006.01); C08F 110/02 (2006.01); B01J 31/16 (2006.01); C07F 11/00 (2006.01); C07F 7/10 (2006.01); C07F 7/20 (2006.01);
U.S. Cl.
CPC ...
C08F 110/02 (2013.01); B01J 31/16 (2013.01); C07F 7/10 (2013.01); C07F 7/20 (2013.01); C07F 11/00 (2013.01); C08F 4/52 (2013.01); C08F 4/78 (2013.01);
Abstract
The present invention relates to a ligand compound, a chromium compound, and a catalyst system including the same. The catalyst system including the ligand compound or chromium compound according to the present invention exhibits high catalytic activity in ethylene oligomerization reaction, and therefore, polyethylene can be prepared using a small amount of comonomers or using only ethylene without comonomers.