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US07579417B2 Metallocene compounds 失效
茂金属化合物

Metallocene compounds
摘要:
A metallocene compound of formula (I) wherein: M is an atom of a transition metal; X, same or different, is a hydrogen atom, a halogen atom, or a R, OR, OSO2CF3, OCOR, SR, NR2 or PR2 group, wherein R is C1-C40 hydrocarbon group; L is a divalent bridging group; R1, is a C1-C40 hydrocarbon group; R3 is a C1-C40 hydrocarbon group; R2, R4, R5, R6, R7 and R8, equal to or different from each other, are hydrogen atoms or C1-C40 hydrocarbon groups.
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