Abstract: A composite absorber for absorbing liquid, the composite absorber having: a polymer absorbent having a hydrophilic continuous skeleton and continuous pores; and a highly absorbent polymer, wherein the polymer absorbent contains at least a —COOH group and —COONa group as an ion exchange group, and the total ion exchange capacity of the —COOH group and —COONa group per mass in a dry state is at least 4.0 mg equivalent/g.

Abstract: A composite absorbent body for absorbing a liquid and for use as a sanitary article contains a polymeric absorber equipped with a hydrophilic continuous framework and continuous pores. The ratio of pore volume from pores having a pore radius of 1 ?m or higher in the polymeric absorber is at least 90% of the pore volume of all pores.

Abstract: A monolithic organic porous ion exchanger having a continuous skeleton and continuous pores, wherein the continuous skeleton is formed of an organic polymer being a hydrolysate of a crosslinked polymer of a (meth)acrylic acid ester and divinylbenzene, the organic polymer having any one or both of a —COOH group and a —COONa group as ion-exchange groups, the continuous skeleton has a thickness of 0.1 to 100 ?m, the continuous pores have an average diameter of 1.0 to 1000 ?m, the monolithic organic porous ion exchanger has a total pore volume of 0.5 to 50.0 mL/g, and has a total ion-exchange capacity of the —COOH group and the —COONa group per weight in a dry state of 4.0 mg equivalent/g or more.