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Process for enlarging the surface of particles

  • US 6,076,277 A
  • Filed: 03/16/1999
  • Issued: 06/20/2000
  • Est. Priority Date: 09/26/1996
  • Status: Expired due to Fees
First Claim
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1. A method for reducing the size of liquid absorbing polymer particles comprising the steps of:

  • a) subjecting the particles to one of a liquid and a moist atmosphere containing said liquid;

    b) waiting a sufficient length of time such that said liquid penetrates into the polymer particles; and

    c) irradiating the particles, following step b), with microwaves to suddenly evaporate said liquid, wherein an associated spontaneous pressure increase in molecular compound of the polymer particles explodes a structure of the polymer particles.

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