Absorbent composite structure formed of a substrate and cross-linkable hydrogel polymer particles
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United States of America Patent
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Nov 2, 1999
Issued Date -
N/A
app pub date -
Mar 10, 1997
filing date -
Oct 22, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An absorbent composite structure suitable for absorbing aqueous body fluids is provided which includes a substrate having two surfaces, a plurality of hydrogel-forming polymer particles and a chemical cross-linking agent capable of bonding to both the substrate and the hydrogel-forming particles. In at least a substantial portion of the structure, the majority of the hydrogel-forming polymer particles are connected by the chemical cross-linking agent directly to at least one of the substrate surfaces. The absorbent composite structure can be incorporated into an absorbent article. A method of making the absorbent composite structure is also disclosed.
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