| abstract |
PROBLEM TO BE SOLVED: To absorb a large amount of a liquid containing a substance having a high molecular weight such as blood and not to re-release even if pressure is applied after the absorption, so that it can be suitably used for medical applications. And a method for producing the same. The superabsorbent resin having a carboxyl group contains at least one ion selected from zinc, nickel, manganese, iron, cobalt and copper as a carboxyl group ion in an amount of 2 to 12% by weight. At least one water-soluble metal selected from zinc, nickel, manganese, iron, cobalt and copper in a mixed solvent of water and an organic solvent having a water-compatible organic solvent concentration of 30 to 70% by weight; A super-water-absorbing resin having a carboxyl group is mixed and stirred into the treatment liquid in which the salt is mixed and dissolved, and at least one ion selected from zinc, nickel, manganese, iron, cobalt, and copper is highly absorbed by an ion exchange reaction. After binding as a counter ion of the carboxyl group of the hydrophilic resin, drying is performed. |