Patent ID: 7825169

Claim:
A water-absorbent composition, being particulate, which contains not less than 70 mass % of a water-absorbent resin (A) formed by surface-cross-linking a gelatinous polymer having a cross-linking structure obtained by polymerizing an unsaturated monomer containing sodium acrylate whose acid group neutralization rate is 55-75 mol %, wherein (1) an amount of particles whose particle diameter is less than 850 μm and not less than 150 μm is not less than 90 mass % with respect to the whole, and an amount of particles whose particle diameter is not less than 300 μm is not less than 60 mass % with respect to the whole, and (2) a plant component (B) selected from the group consisting of oolong tea extract, red tea extract, and theaceous-plant leaf extract containing polyphenols and caffeine is included, the amount of plant component (B) being within a range of preferably from 0.001 to 10 mass parts, with respect to 100 mass parts of the water-absorbent resin; wherein an absorption capacity in case where 0.90 mass % of physiological saline is absorbed without load for 60 minutes is not less than 30 g/g, and a diffusing absorption capacity in case where 0.90 mass % of physiological saline is absorbed at 1.9 kPa for 60 minutes is not less than 24 g/g; and wherein the composition comprises a second monomer other than acrylic acid and salt, and the ratio of the second monomer is not more than 30 mole % with respect to the total amount of the monomer including acrylic acid and salt.