Olefin oligomerization catalysts and methods of using same

Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing

Reexamination Certificate

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C556S017000, C556S020000, C556S051000, C585S513000, C585S514000, C502S113000

Reexamination Certificate

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07378537

ABSTRACT:
A metal complex comprising a metal compound complexed to a heteroatomic ligand, the metal complex having Structure X:wherein R1, R2, R3, and R4are each independently an alkyl group, a cycloalkyl group, a substituted cycloalkyl group, an aromatic group, or a substituted aromatic group, R1c, R2c, R3c, R4c, and R5care each independently hydrogen or an alkyl group, and MXpcomprises a group IVB, VB, or VIB metal. A metal complex comprising a metal compound complexed to a diphosphino aminyl ligand comprising at least two diphosphino aminyl moieties and a linking group linking each aminyl nitrogen atom of the diphosphino aminyl moieties.

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