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Water-absorbent resin and production process

  • US 5,244,735 A
  • Filed: 12/11/1992
  • Issued: 09/14/1993
  • Est. Priority Date: 06/28/1988
  • Status: Expired due to Term
First Claim
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1. A water-absorbent resin comprising carboxyl-containing polymer particles having an average particle diameter of 100-600 μ

  • m and a particle diameter distribution logarithmic standard deviation of 0.35 or less, and wherein the surface of the polymer particles is selectively crosslinked.

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