Superabsorbent polymers providing long-term generation of free volume in partially hydrated absorbent cores
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United States of America Patent
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Mar 23, 2004
Grant Date -
Mar 21, 2002
app pub date -
Apr 10, 2001
filing date -
Oct 25, 1999
priority date (Note) -
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Abstract
An absorbent composition providing unexpectedly high fluid capacity with minimal gel-blocking, articles comprising the absorbent composition and methods of preparing the absorbent composition are disclosed. The absorbent composition optionally comprises a surface crosslinked polymer disbursed within a fibrous matrix of wettable fibers. The surface crosslinked polymer has an FVAUL value of at least about 60 cc after 10 minutes.
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