Absorbent members for body fluids using hydrogel-forming absorbent polymer
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United States of America Patent
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Aug 27, 2002
Grant Date -
N/A
app pub date -
Mar 13, 2000
filing date -
Apr 18, 1997
priority date (Note) -
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Abstract
Absorbent members useful in the containment of body fluids such as urine, that have at least one region containing hydrogel-forming absorbent polymer in a concentration of from about 50 to 100% by weight and providing a gel-continuous fluid transportation zone when in a swollen state. This hydrogel-forming absorbent polymer has: (a) a Dynamic Gelling Rate of at least about 0.18 g/g/sec; (b) a Performance under Pressure (PUP) capacity value of at least about 25 g/g under a confining pressure of 0.7 psi (5 kPa); and (c) when the hydrogel-forming absorbent polymer is in the form of particles, a mass median particle size of at least about 100 .mu.m.
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