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.

Date of Patent:
Jan. 19, 2010

Filed:

Sep. 16, 2005
Applicants:

Sung Cheol Yoon, Daejeon, KR;

Young Chul Won, Daejeon, KR;

Young Whan Park, Daejeon, KR;

Sung Ho Chun, Daejeon, KR;

Dai Seung Choi, Daejeon, KR;

Won Kook Kim, Daejeon, KR;

Taesun Lim, Seoul, KR;

Heon Kim, Daejeon, KR;

Jungmin Lee, Daejeon, KR;

Kyung Lim Paik, Daejeon, KR;

Inventors:

Sung Cheol Yoon, Daejeon, KR;

Young Chul Won, Daejeon, KR;

Young Whan Park, Daejeon, KR;

Sung Ho Chun, Daejeon, KR;

Dai Seung Choi, Daejeon, KR;

Won Kook Kim, Daejeon, KR;

Taesun Lim, Seoul, KR;

Heon Kim, Daejeon, KR;

Jungmin Lee, Daejeon, KR;

Kyung Lim Paik, Daejeon, KR;

Assignee:

LG Chem, Ltd., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 31/00 (2006.01); C08F 4/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A catalyst system capable of producing a cyclic olefin polymer having a polar functional group and a high molecular weight with a high yield in which a catalyst is not deactivated due to polar functional groups of monomers, and a method of producing polymers using the same are provided. The catalyst system for polymerization of olefin according to the present invention has good thermal and chemical stability, and thus, in the method of preparing polyolefin using the catalyst system, the deactivation of a catalyst due to a polar functional group of the monomer can be prevented, and thus a high yield of the cyclic olefin polymer with a high molecular weight can be obtained when a ratio of the catalyst to the monomer is 1:5000, and the removal of a catalyst residue is not required.


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