Bimetal catalysts with high activity

Methods of making mixed Ziegler-Natta/metallocene catalysts are disclosed. The methods include slurrying a dehydrated support in a hydrocarbon solvent, adding a dialkylmagnesium compound, then adding a non-metallocene group 4 or 5 metal compound, followed by adding a metallocene, an alumoxane, and o...

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Bibliographische Detailangaben
Hauptverfasser:	MINK ROBERT I, SANTANA ROBERT L, SCHURZKY KENNETH G, NOWLIN THOMAS E, SHIRODKAR PRADEEP P
Format:	Patent
Sprache:	eng
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:	Methods of making mixed Ziegler-Natta/metallocene catalysts are disclosed. The methods include slurrying a dehydrated support in a hydrocarbon solvent, adding a dialkylmagnesium compound, then adding a non-metallocene group 4 or 5 metal compound, followed by adding a metallocene, an alumoxane, and optionally an aklyl aluminum compound and an electron donor compound, followed by drying the product. The alumoxane is added in an aromatic solvent.