Metallocenes, use in catalyst system for producing olefin...

Details Metallocenes, use in catalyst system for producing olefin... Metallocenes, use in catalyst system for producing olefin...

2007-07-10

2007-07-10

Nazario-Gonzalez, Porfirio (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S043000, C549S060000, C549S206000, C549S209000, C549S212000, C549S458000, C548S402000, C546S002000, C546S010000, C556S011000, C556S012000, C502S117000, C502S132000, C502S152000, C526S160000, C526S161000, C526S171000, C526S351000, C526S943000

Reexamination Certificate

active

10481372

ABSTRACT:
A metallocene compound of formula (I): wherein M is zirconium, titanium and hafnium; X is a hydrogen atom, a halogen atom or a hydrocarbon radical; R1is a linear C1-C20-alkyl radical; R2is a hydrogen atom or hydrocarbon R3, R4, R5, R6, R7, and R8, are hydrogen atoms or hydrocarbon radicals, A is a sulphur (S) atom or an oxygen (O) atom; Q is a radical of formula (II), (III) or (IV) being bonded to the indenyl at the position indicated by the symbol *; (II), (III), (IV) wherein T1is a sulphur atom, an oxygen (O) atom or a NR; R9, R10and R11are hydrogen atoms or hydrocarbon radicals; T2, T3, T4, T5, and T6are carbon atoms (C) or nitrogen atoms (N); m1, m2, m3, m4and m5are 0 or 1; R12, R13, R14, R15and R16are hydrogen atoms or hydrocarbon radicals with the provisos that at least one of R12, R13, R14, R15and R16is different from hydrogen atoms, and that no more than two of T2, T3, T4, T5and T6are nitrogen atoms.

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