| abstract |
PROBLEM TO BE SOLVED: To provide a highly safe cured product (gel body) having chemical resistance, moderate strength and elasticity, water swelling, freeze-thaw resistance, and drying of a gel body. Provided are a water stopping agent that hardly causes shrinkage, and a water stopping method using the same. SOLUTION: A water-soluble polyalkylene glycol di (meth) acrylate (component A1), an anionic electrolyte monomer (component A2), a polyhydric alcohol or glycerin (component B1) represented by the following formula (II): An aqueous solution containing a polymerization catalyst, wherein the mass ratio of component A1 to component A2 (component A1: component A2) is 98: 2 to 40:60. Wherein the component B1 is 5 to 70% by mass of the total amount of the water-stopping agent, and a water-stopping method using the same. HO - ((CH 2) x O) n -H (II) ( wherein, x is an integer from 2 to 4, n represents an integer of 2 to 10.) |