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Linear ethylene interpolymer blends of interpolymers having narrow molecular weight and composition distributions

  • US 5,382,631 A
  • Filed: 06/04/1993
  • Issued: 01/17/1995
  • Est. Priority Date: 09/30/1988
  • Status: Expired due to Term
First Claim
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1. A polymer blend comprising:

  • a plurality of linear at least partially crystalline ethylene interpolymer components comprising ethylene and at least one alpha olefin comonomer, each component having a a different average molecular weight, Mw/Mn≦

    3, a density in the range of 0.88 to less than 0.940 g/cm3 and a composition distribution breadth index of at least 50%;

    said blend being essentially free of blend components having both a higher average molecular weight and a lower average comonomer content than that of any other components; and

    said blend has a density in the range of from about 0.88 g/cm3 to less than 0.900 g/cm3 and a Mw/Mn>

    3.

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