08344068 is referenced by 7 patents and cites 37 patents.

The invention is related to compositions suitable for the fabrication of pipes, and other articles, with excellent performance properties. The invention provides a composition, comprising a blend, wherein said blend comprises a high molecular weight ethylene-based interpolymer and a low molecular weight ethylene-based interpolymer, and the high molecular weight ethylene-based interpolymer is a heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.922 g/cc to 0.929 g/cc, and a high load melt index (I21) from 0.2 g/10 min to 1.0 g/10 min, and the low molecular weight ethylene-based interpolymer is heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.940 g/cc to 0.955 g/cc, and a melt index (I2) from 6 g/10 min to 50 g/10 min. The blend has a single peak in an ATREF profile eluting above 30° C., and has a coefficient of viscosity average molecular weight (CM?) less than −0.0032 in the log(calculated Mv) versus elution temperature, said CMv calculated in the range of elution temperatures from 70° C. to 90° C. The Mv is the viscosity average molecular weight.

Title
Polyethylene compositions, methods of making the same, and articles prepared therefrom
Application Number
12/446652
Publication Number
8344068 (B2)
Application Date
October 19, 2007
Publication Date
January 1, 2013
Inventor
Thoi H Ho
Lake Jackson
TX, US
Anthony C Neubauer
Piscataway
NJ, US
Michael A Kinnan
North Canton
OH, US
Stephanie M Whited
Charleston
WV, US
Lonnie G Hazlitt
Lake Jackson
TX, US
Dane Chang
Sugar Land
TX, US
William J Michie Jr
Missouri City
TX, US
Assignee
Dow Global Technologies
MI, US
IPC
C08L 23/04
C08F 8/00
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