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High-density absorbent structures

  • US 4,610,678 A
  • Filed: 09/06/1983
  • Issued: 09/09/1986
  • Est. Priority Date: 06/24/1983
  • Status: Expired due to Fees
First Claim
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1. A flexible, substantially unbonded, absorbent structure comprising an air-laid, substantially dry mixture of hydrophilic fibers and discrete particles of a water-insoluble, cross-linked polymeric hydrogel, in a fiber/hydrogel weight ratio from about 30:

  • 70 to about 98;

    2;

    said absorbent structure having a density of from about 0.15 to about 1 g/cm3, a moisture content of less than about 10% by weight of the dry absorbent structure and a Gurley Stiffness value of less than 2 grams.

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