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Binder for high wet-strength substrates

  • US 20030176133A1
  • Filed: 12/20/2002
  • Published: 09/18/2003
  • Est. Priority Date: 01/18/2002
  • Status: Active Grant
First Claim
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1. A fibrous substrate comprising chemically bonded fibers wherein said fibers are bonded by a polymeric binder wherein said binder is present in an amount which is sufficient to bind the fibers together to form a self-sustaining web, and wherein said binder is characterized as having an average cross-machine direction (CMD) wet tensile strength of greater than 4500 grams per inch (g/in) when measured at a 20 percent add-on using Whatman #4 CHR Chromatography paper which is drum dried for 90 seconds at 210 to 215°

  • F. and cured for 2 minutes at 300 to 325°

    F.

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