Process for producing polyethlene

Process for producing polyethlene

A novel process for producing homopolymers and copolymers of ethylene which involves contacting ethylene and/or ethylene and at least one or more olefin comonomer(s) under polymerization conditions with a Ziegler-Natta type catalyst substantially free of internal electron donor, trimethylaluminum an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: AMES WILLIAM ALBERT, WONDERS ALAN GEORGE, FORD RANDAL RAY, VANDERBILT JEFFREY JAMES, DOOLEY KENNETH ALAN
Format: Patent
Sprache:eng
Schlagworte:
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 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:A novel process for producing homopolymers and copolymers of ethylene which involves contacting ethylene and/or ethylene and at least one or more olefin comonomer(s) under polymerization conditions with a Ziegler-Natta type catalyst substantially free of internal electron donor, trimethylaluminum and at least one compound containing at least one carbon-oxygen-carbon linkage (C-O-C) of the formula R1-O(-R2-O)n-R3 where n ranges from 0 to 30, and R1, R2 and R3 independently contain from 1 to 30 carbon atoms and from 0 to 30 heteroatoms of an element, or mixtures thereof, selected from Groups 13, 14, 15, 16 and 17 of the Periodic Table of Elements, and further wherein R1, R2 and/or R3 can be linked and form part of a cyclic or polycyclic structure. Also provided are films and articles produced therefrom.