Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2005-12-14
2010-02-23
Lu, Caixia (Department: 1796)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S001000, C502S103000, C502S152000, C526S160000, C526S161000, C526S943000
Reexamination Certificate
active
07667064
ABSTRACT:
A metallocene compound is represented by the formula (1):in-line-formulae description="In-line Formulae" end="lead"?AMXn-1in-line-formulae description="In-line Formulae" end="tail"?wherein M is a transition metal atom having a coordination number of n selected from Group 3, 4, 5 or 6 of the Periodic Table of Elements, or a lanthanide metal atom, or actinide metal atom; A is a substituted monocyclic or polycyclic arenyl ligand pi-bonded to M, wherein said arenyl ligand includes at least one halogen substituent directly bonded to any sp2carbon atom at a bondable ring position of the ligand; and the or each X is a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand.
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Canich Jo Ann M.
Coker Catalina L.
Lygin Alexander V.
Ryabov Alexey N.
Uborsky Dmitry V.
ExxonMobil Chemical Patents Inc.
Lu Caixia
LandOfFree
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