METHOD FOR IMPROVING WATER RETENTION OF WATER-ABSORBING RESIN UNDER PRESSURE

摘要

PURPOSE:To improve the water retention of a water-absorbing resin under pressure, by adding a cationic surfactant to said resin. CONSTITUTION:0.01-5pts.wt. cationic surfactant (e.g. alkyltrimethylammonium halide) is blended with 100pts.wt. (on a solid basis) water-absorbing resin such as partially crosslinked (meth)acrylic acid (co)polymer contg. a carboxylate group as the structural unit.