Water-absorbent resin particles with excellent salt resistance

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of an absorbent having uniform fine particle diameter for improving dispersibility of water swellable rubber or water absorption performance in presence of high concentration metallic ion such as sea water and the absorbent excellent in salt resistance.SOLUTION: There is provided a method of pulverizing a water absorbing resin by using dry pulverizing machine, at least 2 kinds of different type impact type pulverizing machines.SELECTED DRAWING: None