Patent ID: 6265488
Filing Date: 2001-07-24
Classification: B01J,C08F

Abstract:
A production process for a water-absorbing agent comprising the steps of mixing a water-absorbent particulate resin with a crosslinking agent and heating the resultant mixture, wherein the water-absorbent particulate resin has a carboxyl group;with the process being characterized in hat the crosslinking agent has a group reactable upon the carboxyl group, all average molecular weight of 500 or more, and a repeating structural unit of general formula (1) below:--((--CH.sub.2 CH.sub.2 O).sub.m --CH.sub.2 --CH(OH)--CH.sub.2 --O)-- (1)wherein m is an integer of 1 to 10; andwherein said group that is reactable upon the carboxyl group is selected from the group consisting of epoxy and hydroxyl groups.