| 摘要 |
The present invention provides: a process for producing a water-absorbing agent by using a crosslinking agent of high safety, wherein the water-absorbing agent is excellent in the absorption capacities under no load and under a load and further in the blocking ratio under a load, and can display excellent absorption properties even if the weight percentage of the water-absorbent resin (resin concentration) is high when the water-absorbent resin is used for materials such as sanitary materials; and such a water-absorbing agent. The water-absorbent resin is mixed and treated with an oxazoline compound, wherein the oxazoline compound has at least three structural units of general formula (1) below:wherein R1~R4 separately denote a hydrogen atom, an alkyl group, an aromatic group, a halogen group, a substituted alkyl group, or a substituted aromatic group.
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