BLOW MOLDING POLYETHYLENE RESINS

[0097] DISCLOSED HEREIN ARE VARIOUS PROCESSES, INCLUDING CONTINUOUS FLUIDIZED-BED GAS PHASE POLYMERIZATION PROCESSES FOR MAKING A HIGH STRENGTH, HIGH DENSITY POLYETHYLENE COPOLYMER, COMPRISING (INCLUDING): CONTACTING MONOMERS THAT INCLUDE ETHYLENE AND OPTIONALLY AT LEAST ONE NON-ETHYLENE MONOMER WIT...

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Hauptverfasser: RONALD S. EISINGER, STEPHEN P. JAKER, KEVIN J. CANN, MARK G. GOODE, JOHN H. MOORHOUSE, CLIFF R. MURE, MARIA A. APECETCHE
Format: Patent
Sprache:eng
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Zusammenfassung:[0097] DISCLOSED HEREIN ARE VARIOUS PROCESSES, INCLUDING CONTINUOUS FLUIDIZED-BED GAS PHASE POLYMERIZATION PROCESSES FOR MAKING A HIGH STRENGTH, HIGH DENSITY POLYETHYLENE COPOLYMER, COMPRISING (INCLUDING): CONTACTING MONOMERS THAT INCLUDE ETHYLENE AND OPTIONALLY AT LEAST ONE NON-ETHYLENE MONOMER WITH FLUIDIZED CATALYST PARTICLES IN A GAS PHASE IN THE PRESENCE OF HYDROGEN GAS AT AN ETHYLENE PARTIAL PRESSURE OF 100 PSI OR MORE AND A POLYMERIZATION TEMPERATURE OF 1050 C. OR LESS TO PRODUCE A POLYETHYLENE COPOLYMER HAVING A DENSITY OF 0.945 G/CC OR MORE AND AN ESCR INDEX OF 1.0 OR MORE WHEREIN THE CATALYST PARTICLES ARE PREPARED AT AN ACTIVATION TEMPERATURE OF 7000 C. OR LESS, AND INCLUDE SILICA, CHROMIUM, AND TITANIUM.