Processo para a produção de polietilenos ou EPRs; e sistema catalítico

Processo para a produção de polietilenos ou EPRs; e sistema catalítico

A process for the production of polyethylenes or EPRs comprising contacting a mixture comprising ethylene, one or more alpha-olefins, and, optionally, a diene, with a catalyst comprising: (A) as a precursor, the reaction product of VX3 and an electron donor; as a modifier, AlR(3-a)Xa; and a support;...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: XINLAI BAI, KEVIN JOSEPH CANN
Format: Patent
Sprache:por
Schlagworte:
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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Beschreibung
Zusammenfassung:A process for the production of polyethylenes or EPRs comprising contacting a mixture comprising ethylene, one or more alpha-olefins, and, optionally, a diene, with a catalyst comprising: (A) as a precursor, the reaction product of VX3 and an electron donor; as a modifier, AlR(3-a)Xa; and a support; and (B) as a cocatalyst, AlR(3-a)Xa; and (C) as a promoter, a saturated or unsaturated aliphatic halocarbon having at least 3 carbon atoms and at least 6 halogen atoms.