Deactivated and reactivated metallocene catalyst systems
AssigneeBASF SE
InventorsRueger Schlund, Meinolf Kersting, Klaus-Dieter Hungenberg
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Abstract
Metallocene catalyst systems for the polymerization of C.sub.2 -C.sub.10 -alkenes are obtainable by deactivation of a preactivated metallocene catalyst system which contains, as active components, a metallocene complex of a metal of subgroup IV or V of the Periodic Table and an oligomeric alumoxane compound and, if required, subsequent reactivation.
Claims6
A metallocene catalyst system for the polymerization of C.sub.2 -C10-alkenes, obtained by reversibly deactivating a metallocene catalyst system which contains, as active components, a metallocene complex of a metal of subgroup IV or V of the Periodic Table and an oligomeric alumoxane compound by mixing with an organic halide and reactivating the obtained deactivated catalyst system by admixing with an organometallic compound.
Dependencies are inferred from the claim text.