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High density polyethylene and articles made therefrom

  • US 7,855,253 B2
  • Filed: 06/24/2009
  • Issued: 12/21/2010
  • Est. Priority Date: 12/07/2005
  • Status: Active Grant
First Claim
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1. A bottle prepared from a multimodal polyethylene possessing a density from 0. 940 to 0.965 g/cm3, and an I21 from 4 to 20 dg/min, and comprising the following ethylene copolymers:

  • (a) a low molecular weight ethylene copolymer having a weight average molecular weight from 5,000 amu to 50,000 amu and having a short chain branching index from 2.5 to 4.5; and

    (b) a high molecular weight ethylene copolymer having a weight average molecular weight from 60,000 amu to 800,000 amu and having a short chain branching index from 1 to 2.5.

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