Water absortion power resin, the manufacturing method and water absorption, preservation water medicine

摘要

PURPOSE:To improve thne stability to the water-absorbing velocity and temp. by heating water-soluble and hydrophilic polymer particles obtained from a hydrophilic and/or a water-soluble monomer with water contg. a cross-linking agent. CONSTITUTION:A cross-linking agent consisting of the salt of a polyvalent metal, a haloepoxyalkane compd., and the compd. of aldehydes is prepared. Water- insoluble and hydrophilic polymer particles obtained from a hydrophilic and/or a water-soluble monomer are heated with water contg. said cross-linking agent, and reformed to form a three-dimensional structure. Consequently, uniform permeation of water is accelerated, a high water-absorbing velocity is obtained, the blocking between resin particles is not generated even when the resin is left standing under high humidity and the resin is stabilized.