PROBLEM TO BE SOLVED: To provide a water-absorbing resin crosslinking agent which has excellent reactivity (particularly, low-temperature reactivity), excellent biodegradability and low toxicity and can be used suitably to obtain an absorbent excellent in water absorption.SOLUTION: A water-absorbing resin crosslinking agent contains a glycidic ester having in each molecule one or more glycidic ester groups represented by general formula (1) in the figure.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】反応性(特に低温での反応性)及び生分解性に優れ、毒性が低く、吸水性に優れる吸水剤を得るために好適に用いることのできる吸水性樹脂架橋剤を提供すること。【解決手段】下記一般式(1)で表されるグリシド酸エステル基を分子中に1つ以上有するグリシド酸エステルを含むことを特徴とする吸水性樹脂架橋剤。[化1]【選択図】なし
