SUPPORTED CATALYST COMPOSITIONS HAVING IMPROVED FLOW PROPERTIES AND PREPARATION THEREOF

There is provided a supported metallocene catalyst composition, useful in olefin polymerization, and having improved flow properties. The supported olefin polymerization metallocene catalyst composition comprises one or more particulate supports, one or more metallocene catalyst compounds, a continu...

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Bibliographische Detailangaben
Hauptverfasser:	KUO, CHI-I, PANNELL, RICHARD B, LLOYD, SHAMAH
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	There is provided a supported metallocene catalyst composition, useful in olefin polymerization, and having improved flow properties. The supported olefin polymerization metallocene catalyst composition comprises one or more particulate supports, one or more metallocene catalyst compounds, a continuity additive to reduce reactor fouling and one or more organometallic activator compounds, and has a low macro pore volume (e.g., less than or equal to 1.23 cm3/g, as determined by ISO 15901-1). Methods for preparing the supported catalyst compositions are also disclosed. L'invention concerne des compositions de catalyseur supporté, utiles dans la polymérisation d'oléfines et aux propriétés de coulabilité améliorées. Les compositions de catalyseur peuvent être caractérisées par un faible volume de pores et une densité apparente élevée. L'invention concerne également des procédés de préparation des compositions de catalyseur.