Patent ID: 6482344
Filing Date: 2002-11-19
Classification: A61F,A61L,Y10T

Abstract:
A method for providing improved absorbency against pressure characteristics to non-surface cross-linked superabsorbent polymer fibers, said method comprising:(a) providing superabsorbent polymer fibers that are free of a surface cross-linking treatment; (b) mixing a surface cross-linking agent with the superabsorbent polymer fibers that are free of a surface cross-linking treatment; and (c) heating the resultant mixture of the surface cross-linking agent and the superabsorbent polymer fibers that are free of a surface cross-linking treatment for a sufficient time at a sufficient temperature to achieve surface cross-linked superabsorbent polymer fibers having absorbency against pressure characteristics superior to the absorbency against pressure characteristics of the superabsorbent polymer fibers that are free of a surface X-linking treatment wherein said method is free of both a solvent and an inorganic powder carrier.