Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Boron or compound containing same
Reexamination Certificate
2007-12-18
2009-12-29
Choi, Ling-Siu (Department: 1796)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Boron or compound containing same
C502S102000, C502S103000, C502S104000, C502S117000, C502S204000, C502S415000
Reexamination Certificate
active
07638456
ABSTRACT:
A method comprising contacting a support with one or more chromium-containing compounds and one or more boria precursors to provide a catalyst precursor, and activating the catalyst precursor to provide a polymerization catalyst.
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Collins Kathy S.
McDaniel Max P.
Carroll Rodney B.
Chevron Phillips Chemical Company LP
Choi Ling-Siu
Conley & Rose, P.C.
Huseman Cheryl
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