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Absorbent members containing interparticle crosslinked aggregates

  • US 5,180,622 A
  • Filed: 04/02/1990
  • Issued: 01/19/1993
  • Est. Priority Date: 04/02/1990
  • Status: Expired due to Term
First Claim
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1. An absorbent member comprising a mixture of fiber material and a particulate, absorbent, polymeric composition, said polymeric composition comprising interparticle crosslinked aggregates, said interparticle crosslinked aggregates comprising (i) precursor particles of substantially water-insoluble, absorbent, hydrogel-forming, polymer material, and (ii) an interparticle crosslinking agent reacted with said polymer material of said precursor particles to form covalent crosslink bonds between said precursor particles, said interparticle crosslinked aggregates being present in said polymeric composition in an amount such that said polymeric composition has a mass average particle size at least about 25% greater than the mass average particle size of said precursor particles.

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