abstract |
(57) [Problem] To provide a method for producing a water absorbent resin having a high water absorption rate. SOLUTION: 100 parts by mass of (meth) acrylic acid (salt) and 0.1% of polyoxyethylene mono (meth) acrylate. A monomer mixture containing at least 1 to 30 parts by mass is polymerized in the presence of a crosslinking agent. |