ALPHA-MONOOLEFIN POLYMERISATION PROCESS IMPROVED BY CONTINUALLY ADDING A DIALKYLALUMINIUM HALIDE AND CONDUCTING THE PROCESS AT 0.1 TO 5.0 O C ABOVE THE DEW POINT OF THE RECYCLE GAS

Highly stereospecific olefin polymers are obtained in enhanced yield in a continuous gas-phase fluid bed process for polymerizing alpha monoolefins employing a catalyst system comprising (a) a solid titanium-containing procatalyst, (b) an organoaluminum activator compound, and (c) a selectivity cont...

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Bibliographische Detailangaben
Hauptverfasser:	HUSSEIN, F D, GAINS, D M, HAN TAI LUI, MILLER, D J
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HYGIENE MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:	Highly stereospecific olefin polymers are obtained in enhanced yield in a continuous gas-phase fluid bed process for polymerizing alpha monoolefins employing a catalyst system comprising (a) a solid titanium-containing procatalyst, (b) an organoaluminum activator compound, and (c) a selectivity control agent, by continuously adding dialkylaluminum halide to the reactor during polymerization and conducting polymerization at a temperature of 0.1 to 5.0 DEG C above the dew point temperature of the cycle gas in the reactor.