Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2007-03-15
2008-10-21
Nazario Gonzalez, P. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S053000, C502S103000, C502S117000, C502S120000, C526S160000, C526S943000, C568S379000, C585S023000
Reexamination Certificate
active
07439378
ABSTRACT:
The present invention relates to a novel fulvene compound and a preparation method thereof, and more particularly to a fulvene compound having substituted groups in the 2- and 5-positions, prepared from an unsaturated ketone having a substituted group in the β-position and a halogen atom in the α-position, and a preparation method thereof. The present invention also relates to a metallocene catalyst having a substituted group in the α-position carbon of the bridge of the cyclopentadienyl group only by reaction of a fulvene compound and an anion group including the cyclopentadienyl group, and a preparation method of a polyolefin copolymer using the same.
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Hong Sung-Don
Jeong Boong-Goon
Lee Bun-Yeol
Lee Choong-Hoon
Lee Hyo-Sun
Cantor & Colburn LLP
Gonzalez P. Nazario
LG Chem Ltd.
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