Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2006-12-29
2010-10-05
Lu, Caixia (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C502S103000, C502S152000, C502S155000, C526S113000, C526S160000, C526S161000, C526S165000, C526S943000
Reexamination Certificate
active
07807762
ABSTRACT:
The present invention relates to a catalyst composition comprising a novel structure of a Group 4 transition metal compound, to a method for preparing the same, and to a method for preparing a polyolefin using the catalyst composition. The method for preparing a polyolefin according to the present invention can be used for preparing a polyolefin having a high molecular weight and high copolymerizability with a high activity even at a high polymerization temperature and for preparing a polyolefin having a double composition distribution.
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Jung Seung-Whan
Lee Bo-Ram
Lee Bun-Yeoul
Lee Choong-Hoon
Lee Eun-Jung
Lerner David Littenberg Krumholz & Mentlik LLP
LG Chem Ltd.
Lu Caixia
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