Catalyst composition
AssigneeExxonMobil Chemical Patents Inc.
InventorsGregory Solan, Christopher Davies
Life of this patent
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AssigneeExxonMobil Chemical Patents Inc.
InventorsGregory Solan, Christopher Davies
Estimating the term…
This invention relates to catalyst compounds, catalysts systems and methods to oligomerize or polymerize monomers where the catalyst compound and the catalyst system comprise compounds of formula: LMX2 or (LMX2)2 wherein: M is a Group 7, 8, 9, 10 or 11 transition metal; L is a tridentate or tetradentate neutrally charged ligand that is bonded to M by at least three nitrogen atoms; at least one of the nitrogen atoms is a central non-pyridinal nitrogen atom and is not bonded to its adjacent atoms by a multibond; at least two of the nitrogen atoms are terminal nitrogen atoms; at least one terminal nitrogen atom is part of a pyridinyl ring; at least one other terminal nitrogen atom is substituted with at least one C3-C50 hydrocarbyl or halohydrocarbyl; the central nitrogen atom is bonded to at least two different carbon atoms; and each X is an anionic monodentate ligand.
A catalyst precursor comprising a compound represented by the formula:
Dependencies are inferred from the claim text.