Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2011-03-22
2011-03-22
Lee, Rip A. (Department: 1762)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S051000
Reexamination Certificate
active
07910763
ABSTRACT:
Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.
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Jayaratne Kumudini C.
Jensen Michael D.
Yang Qing
Chevron Phillips Chemical Company LP
Lee Rip A.
Merchant & Gould P.C.
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