Patent ID: 6348133
Filing Date: 2002-02-19
Classification: A61L,D21H

Abstract:
A disposable diaper having a core which comprises a wet-laid, superabsorbent, ion sensitive polymer particle-impregnated structure which comprises 50% to about 80% water insoluble, water swellable, ion sensitive polymer particles(SAP), 20% to 50% fibers, and from 5% to 30% of residual salt, and wherein said particles are obtained from a slurry prepared from said particles wherein essentially all of said particles, prior to incorporation into said slurry have a particle size of less than 250 microns, and wherein before impregnation said particles have a particle size of from 200 to 1000 micron as measured by the Rhetz sieve analysis method and wherein said structure exhibits an absorbency under load (AUL) of greater than or equal to 13 g/g, and an AUL per unit SAP contained of greater than or equal to 19 g/g.