METHOD FOR ADJUSTING MOLECULAR WEIGHT DISTRIBUTION AND MOLECULAR WEIGHT OF OLIGOMERIZATION/POLIMERIZATION PRODUCT OF ETHYLENE

Method for adjusting the molecular weight distribution and molecular weight of oligomerization/polymerization products of ethylene, wherein a nickel ylide linked to a cross-bonded polystyrene or to be used together with a promotor is used as a catalyst in the oligomerization/polymerization process o...

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Hauptverfasser:	KIVIMAEKI, LIISA, KOSKIMIES, SALME, LOGREN, RAUNO, SIIRILAE, MARJAANA, PULKKINEN, ERKKI
Format:	Patent
Sprache:	eng ; fin
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	Method for adjusting the molecular weight distribution and molecular weight of oligomerization/polymerization products of ethylene, wherein a nickel ylide linked to a cross-bonded polystyrene or to be used together with a promotor is used as a catalyst in the oligomerization/polymerization process of ethylene. In the method the product distribution and/or molecular weight is adjusted by modifying the catalyst system by varying the cross-bonding degree of polystyrene serving as a catalyst carrier and/or the quality and/or quantity of the promoter. L'invention concerne un procédé d'ajustage de la répartition de la masse moléculaire, et de la masse moléculaire de produits d'oligomérisation/polymérisation d'éthylène, consistant à utiliser un ylure de nickel lié à un polystyrène réticulé, ou à utiliser avec un activeur, en tant que catalyseur dans le processus d'oligomérisation/polymérisation d'éthylène. Selon le procédé, l'on ajuste la répartition et/ou la masse moléculaire du produit, en modifiant le système de catalyseur par variation du degré de réticulation du polystyrène servant de support de catalyseur, et/ou de la qualité et/ou de la quantité de l'activeur.