Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2007-12-13
2011-11-29
O Dell, David K (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C546S002000, C546S343000
Reexamination Certificate
active
08067609
ABSTRACT:
The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a chromium based catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl thioether compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.
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Ackerman Lily J.
Diamond Gary Michael
Hall Keith Anthony
Longmire James M.
Murphy Vince J.
Dell David K O
ExxonMobil Chemical Patents Inc.
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