| abstract |
A process for producing water-absorbing resin particles, comprising a step that includes carrying out the inverted phase suspension polymerization of a water soluble ethylenically unsaturated monomer in a suspension containing a surfactant comprising a fatty acid ester of sorbitan, sorbitol or a derivative thereof, and a hydrocarbon dispersion medium, in which the organic acid ester includes an ester of lauric acid and at least one type of another ester selected from the group consisting of esters of palmitic acid, esters of stearic acid and esters of behenic acid, and in a GPC chromatogram obtained from the fatty acid ester, the proportion of the area of the peak due to the ester of lauric acid is 30-60% and the proportion of Total peak area due to the other ester is 10-50%, based on the total peak area due to fatty acid esters. |