PRODUCTION OF POLYETHYLENE

PURPOSE:To produce PE of a narrow molecular weight distribution in good yields, by (co)polymerizing ethylene with, a optionally, other olefins in the presence of a specified catalyst and an inert solvent. CONSTITUTION:A catalyst is obtained by combining a catalyst component supported on a solid tran...

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Bibliographische Detailangaben
Hauptverfasser:	MASUDA JUN, HAMAZAKI TADAMITSU
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS 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 CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To produce PE of a narrow molecular weight distribution in good yields, by (co)polymerizing ethylene with, a optionally, other olefins in the presence of a specified catalyst and an inert solvent. CONSTITUTION:A catalyst is obtained by combining a catalyst component supported on a solid transition metal compound obtained by reacting a solid product obtained by reacting a trivalent metal halide compound with a bivalent metal hydroxide, oxide or carbonate, a double salt containing them or a hydrated bivalent metal compound with a halogenated Group IVa or Va transition metal compound in the presence of an electron donor such as a polysiloxane of the formula (wherein R are each a residue bondable with Si and 3