PROCESS FOR CATALYTIC POLYMERIZATION OF ALPHAMONOOLEFINES CONTINUOUS METHOD IN GASEOUS PHASE IN FLUID BED

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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Bibliographic Details
Main Authors HUSSEIN FATHI DAVID,US, GAINES DAVID MASON,US, MILLER DOUGLAS J.,US, LIU HAN TAI,US
Format Patent
LanguageEnglish
Published 12.01.1989
Edition4
Subjects
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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Summary: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.
Bibliography:Application Number: CS19870004593