Metallocenes, and their use as catalysts

The present invention relates to a sterically rigid metallocene compound which, as ligands, contains at least two substituted or unsubstituted cyclopentadienyl groups which are bonded to one another via a mono- or polycyclic ring system, at least one cyclopentadienyl group being fused to the mono- o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DR GERHARD ERKER, CHRISTIAN PSIORZ, THOMAS WELLER, DR FRANK KUBER, DR MICHAEL AULBACK
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to a sterically rigid metallocene compound which, as ligands, contains at least two substituted or unsubstituted cyclopentadienyl groups which are bonded to one another via a mono- or polycyclic ring system, at least one cyclopentadienyl group being fused to the mono- or polycyclic ring system, and to a process for the preparation of a cycloolefin copolymer. The cycloolefin copolymers thus obtained have high tensile strengths and are suitable for the production of extruded parts and injection-moulded articles.