Process for the gas phase polymerization of olefins
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United States of America Patent
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May 10, 2005
Grant Date -
Aug 21, 2003
app pub date -
Mar 29, 2001
filing date -
Apr 6, 2000
priority date (Note) -
Expired
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Abstract
A process for preparing and controlling the density of high density polyethylene in the gas phase comprising contacting ethylene or a mixture of ethylene and one or more alpha-olefins with a chromium oxide catalyst supported on a granular or microspherical refractory oxide in a fluidized bed reactor in the presence of oxygen.
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