SILICA-COATED ALUMINA ACTIVATOR-SUPPORTS FOR METALLOCENE CATALYST COMPOSITIONS

SILICA-COATED ALUMINA ACTIVATOR-SUPPORTS FOR METALLOCENE CATALYST COMPOSITIONS

Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CLEAR, Kathy S, BENHAM, Elizabeth A, MCDANIEL, Max P, YANG, Qing, MUNINGER, Randall S
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR PREPARATION OR CHEMICAL WORKING-UP
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins.