Process for the preparation of a catalyst for the polymerisation of alpha-olefins

Process for preparing a catalyst for polymerizing alpha-olefins, comprising (i) a Group IV-VI transition metal complex with an optionally substituted cyclopentadiene ligand, (ii) an aluminoxane activator and (iii) a support comprising porous polyolefin particles, comprises contacting the support wit...

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Bibliographische Detailangaben
Hauptverfasser:	MARCHAND, DOMINIQUE, BETTONVILLE, SERGE, FRANCOIS, PHILIPPE
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:	Process for preparing a catalyst for polymerizing alpha-olefins, comprising (i) a Group IV-VI transition metal complex with an optionally substituted cyclopentadiene ligand, (ii) an aluminoxane activator and (iii) a support comprising porous polyolefin particles, comprises contacting the support with a solution of the activator and evaporating the suspension in a reactor equipped with a scraper-agitator. The gap between the scraper-agitator and the reactor wall is 2-200 times the particle size of the support. Independent claims are also included for the following: (1) A catalyst produced by this process. (2) A process for homo- or copolymerizing alpha-olefins using this catalyst.