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Low density paperboard articles

  • US 20010038893A1
  • Filed: 01/26/2001
  • Published: 11/08/2001
  • Est. Priority Date: 01/26/2000
  • Status: Active Grant
First Claim
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1. A paperboard material useful in the manufacture of paperboard containers such as paper cups comprising a paperboard web including wood fibers and expanded microspheres dispersed within the fibers and having an apparent density of from about 6.0 to about 10 lb/3MSF/mil and a caliper of from 24 to about 35 mil with an internal bond of at least about 80×

  • 10

    3
    ft-lbf.

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  • 7 Assignments
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