HETEROGENOUS/HOMOGENEOUS COPOLYMER

Novel polyethylene copolymer compositions prepared with a homogeneous catalyst system are characterized by having a unique high molecular weight, low comonomer (high density) fraction. These heterogeneous/homogeneous compositions may be prepared using a solution polymerization process in which the p...

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Bibliographische Detailangaben
Hauptverfasser:	DOBBIN, CHRISTOPHER, JOHN, BROOKE, KALE, LAWRENCE, THOMAS, BROWN, STEPHEN, JOHN, ARNOULD, GILBERT, ALEXANDER, WEBER, MARK, ELSTON, CLAYTON, TREVOR, AUBEE, NORMAN, DORIEN, JOSEPH, MARSHALL, SARAH
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	Novel polyethylene copolymer compositions prepared with a homogeneous catalyst system are characterized by having a unique high molecular weight, low comonomer (high density) fraction. These heterogeneous/homogeneous compositions may be prepared using a solution polymerization process in which the polymerization reactor contains a gradient in temperature, catalyst concentration or monomer concentration. The heterogeneous/homogeneous compositions of this invention are easily processed into films having excellent tear strengths and low hexane extractables.