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Element, structure and method for the analysis or transport of liquids

  • US 4,258,001 A
  • Filed: 12/27/1978
  • Issued: 03/24/1981
  • Est. Priority Date: 12/27/1978
  • Status: Expired due to Term
First Claim
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1. A particulate structure for the analysis or transport of a liquid comprising:

  • (i) a plurality of heat-stable, organo-polymeric particles non-swellable in and impermeable to said liquid, said particles having a particle size of from about 1 to 200 microns, and(ii) an adhesive, in an amount less than 10 percent by weight of said particles, comprising an organic polymer different from that of said particles and insoluble in said liquid;

    substantially all of said adhesive being concentrated on surface areas of adjacent particles where said adjacent particles are in closest proximity, and bonding said particles into a coherent, three-dimensional lattice which is non-swellable in said liquid and which has interconnected void spaces among said particles to provide transport of said liquid, said lattice having a void volume of from about 25 to 80 percent.

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