Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2006-06-06
2006-06-06
Harlan, Robert D. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S171000, C526S172000, C502S155000, C502S167000
Reexamination Certificate
active
07056997
ABSTRACT:
Novel metal complexes, particularly chromium complexes, which contain at least one tridentate ligand are disclosed and prepared. Olefins, particularly ethylene, can be reacted to form butene and/or other homo- or co-oligomers and/or polymers with high α-olefin concentrations by contacting a metal catalyst which contains a transition metal, particularly chromium, complexes having per metal atom at least one tridentate ligand with N, O, or N and O coordinating sites.
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Marcucci Angel Jose
Small Brooke L.
Carroll Rodney B.
Chevron Phillips Chemical Company LP
Conley & Rose, P.C.
Harlan Robert D.
Hulett Joe D.
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