Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2006-07-25
2006-07-25
Nazario-Gonzalez, Porfirio (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S095000, C556S465000, C556S478000, C556S489000, C556S011000, C556S053000
Reexamination Certificate
active
07081543
ABSTRACT:
The present invention relates to ligands and the synthesis of those ligands for use in metallocene complexes. More particularly, the present invention relates to the synthesis of diarylsilyl bridged biscyclopentadienes using diarylsilyldisulfonates. Even more particularly, the present invention describes Group IV metallocenes containing diarylsilyl bridged bis-cyclopentadienyl ligands prepared from contacting a diarylsilyldisulfonate with an organometallic indenyl reagent.
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Burkhardt Terry J.
Haygood, Jr. William T.
Li Robert T.
Rix Francis C.
ExxonMobil Chemical Patents Inc.
Nazario-Gonzalez Porfirio
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