Patent ID: 7919564
Filing Date: 2011-04-05
Classification: A61L,B01J,C08F,C08J,C08K

Abstract:
1. A particulate water-absorbing agent obtained by surface-crosslinking, by an organic crosslinking agent which is able to react with a carboxyl group, water-absorbing resin particles, 70 mole % to 100 mole % of which are, as a repeat unit, monomers selected from acrylic acid and/or its salt, the particulate water-absorbing agent satisfying (i) to (iii) below: (i) a surface residual monomer ratio calculated by Formula 1 below being more than 0% but not more than 5%; (ii) a saline flow conductivity (SFC) being 40 (×10 (iii) a water content being less than 5%.