A process for the preparation of a syndiotactic polyolefin

A syndiotactic polyolefin which is obtained in high yield by polymerising or copolymerising an olefin of the formula R-CH=CH-R in the presence of a catalyst comprising a metallocene of the formula I in which M is titanium, zirconium, vanadium, niobium or tantalum, and an aluminoxane. This polyolefin...

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Bibliographic Details
Main Authors ANDREAS WINTER, JURGEN ROHRMANN, MARTIN ANTBERG, VOLKER DOLLE, WALTER SPALECK
Format Patent
LanguageEnglish
Published 30.09.1993
Edition5
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A syndiotactic polyolefin which is obtained in high yield by polymerising or copolymerising an olefin of the formula R-CH=CH-R in the presence of a catalyst comprising a metallocene of the formula I in which M is titanium, zirconium, vanadium, niobium or tantalum, and an aluminoxane. This polyolefin has a very high molecular weight, a very narrow molecular weight distribution and very high syndiotacticity. Mouldings produced from the polymer have high transparency, flexibility and tear strength and excellent surface gloss.
Bibliography:Application Number: AU19900051181