Production of polyethylene for blow molding
AssigneeFina Research, S.A.
InventorsGuy Debras, Phillipe Bodart
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Abstract
A process for producing high density polyethylene suitable for blow molding and having high environmental stress cracking resistance and rigidity, comprising copolymerizing ethylene and a C.sub.3 -C.sub.10 alpha-olefinic comonomer in the presence of a chromium-based catalyst having an alumina-containing support, and an organoboron compound, wherein the atomic ratio of boron in the organoboron compound to the chromium in the chromium-based catalyst is from around 0.2 to around 0.4.
Claims23
A process for producing high density polyethylene suitable for blow molding, the process comprising copolymerizing ethylene and an alpha-olefinic comonomer comprising from 3 to 10 carbon atoms, in the presence of a chromium-based catalyst, having an alumina-containing support, and an organoboron compound, wherein the atomic ratio of boron in the organoboron compound to the chromium in the chromium-based catalyst is from around 0.2 to around 0.4.
Dependencies are inferred from the claim text.