Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2005-05-31
2005-05-31
Nazario-Gonzalez, Porfirio (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S012000, C556S043000, C556S053000, C526S127000, C526S160000, C526S943000, C502S103000, C502S117000, C502S120000
Reexamination Certificate
active
06900343
ABSTRACT:
A process for purifying metallocenes in which a sparingly soluble metallocene halide is converted into a readily soluble and readily crystallizable metallocene by replacement of at least one halide ligand by an alternative negatively charged ligand and the metallocene obtained in this way is subsequently purified by crystallization.
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Bingel Carsten
Brintzinger Hans-Herbert
Damrau Hans-Robert-Hellmuth
Müller Patrik
Basell Polyolefine GmbH
Keil & Weinkauf
Nazario-Gonzalez Porfirio
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