Hafnocene catalyst compounds and process for use thereof

This invention relates to hafnium metallocene compounds having a group substituted (preferably at the 3 position) on at least one cyclopentadienyl ring represented by the formula -R20-SiR′3 or -R20-CR′3 where R20 is a C1 to C4 hydrocarbyl (preferably methyl) and R′ is a C1 to C20 substituted or unsu...

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Bibliographische Detailangaben
1. Verfasser:	McCullough, Laughlin G
Format:	Patent
Sprache:	eng
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:	This invention relates to hafnium metallocene compounds having a group substituted (preferably at the 3 position) on at least one cyclopentadienyl ring represented by the formula -R20-SiR′3 or -R20-CR′3 where R20 is a C1 to C4 hydrocarbyl (preferably methyl) and R′ is a C1 to C20 substituted or unsubstituted hydrocarbyl.