Patent ID: 9517289
Filing Date: 2016-12-13
CPC Classification: A61L,C08G,C08J,C08L

Claim Text:
1. A water-absorbing agent, comprising water-absorbent resin particles obtained by polymerizing an acid group-containing unsaturated monomer, the water-absorbing agent having Centrifuge Retention Capacity (CRC) ranging from 5 to 20 g/g, and including (i) a compound that includes a constitutional unit derived from polyalkyleneglycol and that is other than an unsaturated monomer, said compound having a weight-average molecular weight ranging from 1000 to 6000 and (ii) polyvalent metal salt, and the compound including no radical polymerizable group, and being free without forming a chemical bond with the water-absorbent resin particles or being separable from the water-absorbent resin particles and without forming an internal crosslinked structure in the water-absorbent resin particles, the compound included in the water-absorbing agent falling within a range of 0.05 to 5 mass % with respect to the water-absorbing agent.