Process for making absorbent articles
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United States of America Patent
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Jul 12, 1983
Grant Date -
N/A
app pub date -
Jan 9, 1981
filing date -
Jan 25, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention concerns a process for manufacturing a water-absorbent article in which particles of a water-swellable polymer are fixed to a water-absorbent substrate. The process includes the steps of forming on the surface of the water-swellable particles a coating of a thermoplastic adhesive resin; locating the coated particles in their unswollen and dry state on or within the water-absorbent substrate also in the dry state; and applying heat to soften the thermoplastic coating of the particles and pressing the particles and substrate to cause the particles to be bound to the substrate.
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