Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2011-03-22
2011-03-22
Gonzalez, Porfirio Nazario (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C549S212000, C502S158000
Reexamination Certificate
active
07910760
ABSTRACT:
The invention relates to a process for producing a complex for use in olefin polymerization and oligomerization of the general formula (III):wherein Mtis a group 3 to 12 element in a +2 to +6 oxidation state with between 1 to 4 additional ligands (anionic and/or neutral) coordinated, wherein R1and R2are hydrogen, halogen, alkoxy, or a hydrocarbon group containing between 1 to 12 carbon atoms; E is a group 16 element, preferably O; Z is a direct bond between carbon atoms of the adjacent aromatic rings or a —CR3R4— or —SiR3R4— bridge between those carbon atoms, where R3and R4are hydrogen or a hydrocarbon groups with 1 to 10 carbons, R5, R6, R7and R8are hydrogen, halogen, alkoxy, or a hydrocarbon group containing between 1 to 10 carbon atoms and J1and J2are —NR9R10or —PR9R10, where R9is H or SiMe3group and R10is selected from a group consisting of alkyl, aryl, substituted aryl, heteroalkyl, and heteroaryl containing between 1 to 30 non-hydrogen atoms through a route involving novel precursors such as compounds represented by the general formula (I)where the various substitution options are adapted to produce the substituents shown for formula (III) above.
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ExxonMobil Chemical Patents Inc.
Gonzalez Porfirio Nazario
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