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Low density ethylene-based polymers with high melt strength

  • US 9,394,389 B2
  • Filed: 03/12/2013
  • Issued: 07/19/2016
  • Est. Priority Date: 11/20/2012
  • Status: Active Grant
First Claim
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1. A composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties:

  • a) a Mw(abs) versus I2 relationship;

    Mw(abs)<



    [(I2)B], where A=5.00×

    102 (kg/mole)/(dg/min)B, and B=−

    0.40; and

    b) a MS versus I2 relationship;

    MS≧



    [(I2)D], where C=13.5 cN/(dg/min)D, and D=−

    0.55, andwherein the first ethylene-based polymer has an I2>

    1 g/10 min.

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