Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2003-12-16
2008-11-04
Lu, Caixia (Department: 1796)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S104000, C502S120000, C502S132000, C502S155000, C526S161000, C526S165000
Reexamination Certificate
active
07446072
ABSTRACT:
The present invention relates to a process for preparing a catalyst solid for olefin polymerization, comprising a finely divided support, an aluminoxane and a metallocene compound, which comprisesa) firstly combining the finely divided support with the aluminoxane and subsequentlyb) adding the reaction product of a metallocene compound with at least one organometallic compound to the modified support,catalyst solids obtainable by this process, catalyst systems comprising these catalyst solids, their use for the polymerization of olefins and a process for the polymerization of olefins.
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Fraaije Volker
Gregorius Heike
Lutringshauser Manfred
Basell Polyolefine GmbH
Lu Caixia
Raphael Jarrod N.
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