Patent ID: 6156678
Filing Date: 2000-12-05
Classification: A61L,Y10T

Abstract:
A water absorbing agent comprising water absorbent resin particles (A) having a particle size of 1000 .mu.m or less, with a two-peak mode particle size distribution, and having an inflection point in the range of 750 to 250 .mu.m particle size, prepared by plotting the mass cumulative content percentage from the larger side of the particle size of the particle size distribution on a logarithmic normal probability paper,wherein particles (A) have a particle size distribution comprising 15 to 75% by mass of particles having a particle size of from 600 .mu.m to less than 1000 .mu.m with a first peak existing therein, 15 to 70% by mass of particles having a particle size of 100 .mu.m to less than 400 .mu.m with a second peak existing therein, 5% or less by mass of particles having a particle size of less than 100 .mu.m, and less than 20% by mass of particles having a particle size of 400 to less than 600 .mu.m, wherein particles (A) are all produced by pulverizing the same water absorbent resin.