Low comonomer incorporating metallocene catalyst compounds

The present invention provides polymerization catalyst compounds, catalyst systems including these catalyst compounds, and to their use in the polymerization of ethylene and at least one comonomer. In particular, the invention relates to identifying the comonomer incorporation behavior of metallocen...

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Bibliographische Detailangaben
Hauptverfasser:	MCCULLOUGH LAUGHLIN G, VAUGHAN GEORGE ALAN
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY COMPOSITIONS BASED THEREON GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention provides polymerization catalyst compounds, catalyst systems including these catalyst compounds, and to their use in the polymerization of ethylene and at least one comonomer. In particular, the invention relates to identifying the comonomer incorporation behavior of metallocene polymerization catalyst compounds. More particularly, the invention relates to identifying metallocene catalyst compounds which incorporate comonomer poorly. Preferably, such metallocene catalyst compounds contain at least one substituted or unsubstituted fused ring cyclopentadienyl based ligand. The invention also relates to the use of these low comonomer incorporating metallocene catalyst compounds in catalyst systems to produce polymers that are easy to process into a variety of articles, especially polyethylene based film, having enhanced properties.