Enhanced ESCR of HDPE resins

Disclosed are polyethylene ("PE") compositions, articles comprising PE compositions, and methods of making blended PE compositions, wherein the blended composition comprises from about 80 to about 95 weight % of a first PE and from about 5 to about 20 weight % of a second PE. The first PE...

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Bibliographic Details
Main Authors Crowther, Donna Jean, Katzen, Stanley J, Lin, Zerong, Lustiger, Arnold, MacDonald, Jeanne Marie, Sun, Thomas T
Format Patent
LanguageEnglish
Published 17.05.2011
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Summary:Disclosed are polyethylene ("PE") compositions, articles comprising PE compositions, and methods of making blended PE compositions, wherein the blended composition comprises from about 80 to about 95 weight % of a first PE and from about 5 to about 20 weight % of a second PE. The first PE has a density greater than or equal to about 0.945 g/cc and a MWD greater than about 5. The second PE has a density less than about 0.945 g/cc, a melt index less than about 0.70 g/10 minutes and less than or equal to the melt index of the first PE, a MWD ranging from about 1 to about 5, a weight average molecular weight less than about 400,000, and a CDBI greater than about 50%. The PE composition has an ESCR greater than the ESCR of the first PE.