Static structures (e.g. – buildings) – Transparent panel having active treatment with gas or liquid – Hygroscopic material; e.g. – internal drier
Reexamination Certificate
2009-12-08
2010-10-19
Harlan, Robert D. (Department: 1796)
Static structures (e.g., buildings)
Transparent panel having active treatment with gas or liquid
Hygroscopic material; e.g., internal drier
C526S282000, C502S103000, C502S118000, C502S167000
Reexamination Certificate
active
07814713
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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Choi Dai Seung
Chun Sung Ho
Kim Heon
Kim Won Kook
Lee Jung-min
Harlan Robert D.
LG Chem Ltd.
McKenna Long & Aldridge LLP
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