Production of broad molecular weight polyethylene
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United States of America Patent
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Dec 13, 2011
Grant Date -
Apr 17, 2008
app pub date -
Dec 5, 2007
filing date -
Feb 26, 2003
priority date (Note) -
Expired
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Abstract
Broad molecular weight polyethylene and polyethylene having a bimodal molecular weight profile can be produced with chromium oxide based catalyst systems employing alkyl silanols. The systems may also contain various organoaluminum compounds. Catalyst activity and molecular weight of the resulting polyethylene may also be tuned using the present invention.
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