Patent ID: 8845924
Filing Date: 2014-09-30
Classification: B01J,C08F,C08G,C08K,C08L

Abstract:
1. A water absorbing agent comprising: water absorbent resin particles, the surface of the water absorbent resin particles is cross-linked by a polyalcohol surface cross-linking agent; and a modified cationic polymer compound containing a secondary amino group, said modified cationic polymer being obtained by reacting a cationic polymer compound containing the secondary amino group with a modifying agent, wherein all of the secondary amino groups of the cationic polymer compound do not react with the modifying agent, and some of the secondary amino groups still remain unreacted with the modifying agent, the cationic polymer compound having a cationic value of from 1 to 22 mmol/g, and a secondary cationic value of from 0.1 to 11 mmol/g.