PROCEDIMENTO PER LA PRODUZIONE DI POLIOLEFINE

A process is described for the polymerization of ethylene or copolymerization of ethylene with a C3 to C15 alpha olefin in solution, suspension or in the gas phase at 20 DEG to 250 DEG C. and 1 to 100 bars in the presence of a mixed catalyst comprising a separately produced halogen-containing titani...

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Bibliographic Details
Main Authors JUERGEN FLABE, WOLFGANG PAYER, GUENTER HETKAMP, BOY CORNILS, KARL OTTERBEIN, PETER SCHNELLER
Format Patent
LanguageItalian
Published 17.05.1989
Edition4
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A process is described for the polymerization of ethylene or copolymerization of ethylene with a C3 to C15 alpha olefin in solution, suspension or in the gas phase at 20 DEG to 250 DEG C. and 1 to 100 bars in the presence of a mixed catalyst comprising a separately produced halogen-containing titanium(III) compound and an organoaluminum compound while controlling the molecular weight with oxygen, wherein a mixture of organoaluminum compounds is employed comprising a halogen-containing aluminum alkyl and a trialkyl aluminum compound in a molar ratio of 1:0.05 to 1:20, the combined amount of organoaluminum compounds being present in an amount of 0.01 to 20 moles per one mole of halogen-containing Ti(III) compound.
Bibliography:Application Number: IT19790050104