ZIEGLER-NATTA-TYPE CATALYST SYSTEMS

ZIEGLER-NATTA-TYPE CATALYST SYSTEMS

Ziegler-Natta-type catalyst systems contain as active constituents a) atitanium-containing solid component which contains titanium, magnesium, halogen and a norbornadienedicarboxylate of the formula I I as electron donor, where R1 and R2 are each C1-C8-alkyl or 5- to 7-membered cycloalkyl which in t...

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Bibliographische Detailangaben
Hauptverfasser: KERTH, JUERGEN, KOELLE, PETER
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:Ziegler-Natta-type catalyst systems contain as active constituents a) atitanium-containing solid component which contains titanium, magnesium, halogen and a norbornadienedicarboxylate of the formula I I as electron donor, where R1 and R2 are each C1-C8-alkyl or 5- to 7-membered cycloalkyl which in turn can carry C1-C10-alkyl groups, b) an aluminum component and c) another electron donor component, and are particularly suitable for preparing polypropylene and copolymers of propylene with minor amounts of other alpha -olefins with 2 to 8 carbon atoms.