Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2007-01-02
2007-01-02
Wu, David W. (Department: 1713)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S052000, C556S051000, C526S160000, C526S170000, C526S943000
Reexamination Certificate
active
10495939
ABSTRACT:
Metallocenes and catalyst systems for olefin polymerization derived therefrom. The metallocenes may be represented by the formula:wherein M1preferably is zirconium or hafnium; and R5is different from hydrogen.
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Abstract for EP 0 654 476, published May 24, 1995.
Burkhardt Terry John
Hart James Robert
Haygood William Thomas
Li Robert Tan
Arechederra Leandro
ExxonMobie Chemical Patents Inc.
Foster Shawn H.
Lee Rip A.
Schmidt Paige
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