Process for producing improved super absorbent polymer

摘要

PCT No. PCT/JP95/01602 Sec. 371 Date Oct. 30, 1996 Sec. 102(e) Date Oct. 30, 1996 PCT Filed Aug. 10, 1995 PCT Pub. No. WO96/05234 PCT Pub. Date Feb. 22, 1996A process for producing an improved super absorbent polymer is disclosed. The process comprises adding to a water-retained super absorbent polymer retaining 10 to 100 parts by weight of water per 100 parts by weight of the super absorbent polymer, (a) a polyfunctional compound having two or more reactive groups and selected from a hydrophilic polymer or a metallic compound in an amount of 0.005 to 5 parts by weight per 100 parts by weight of the super absorbent polymer, and (b) a crosslinking agent having two or more functional groups capable of reacting with the polyfunctional compound at a weight ratio of the polyfunctional compound to the crosslinking agent of 0.1 to 30; mixing; and allowing the mixture to react by heating.