A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 13/15 (2006.01)
Patent
CA 2242764
Disclosed are absorbent structures comprising a first layer, a second layer juxtaposed in facing relation with said first layer, wherein at least one of the layers is fluid pervious. These structures also have a continuous region between said first and second layers comprising hydrogel- forming polymer that is substantially uniformly distributed throughout the region. The continuous region at least partially surrounds multiple, spaced-apart zones between said layers, which zones are substantially devoid of hydrogel-forming absorbent polymer. The first and second layers are bonded together such that said hydrogel-forming absorbent polymer is substantially immobilized when in dry state, preferably at sites within a plurality of the zones. Preferably, the hydrogel- forming polymer has relatively high gel permeability such that it forms a gel-continuous fluid transportation layer.
L'invention se rapporte à des structures absorbantes comprenant une première couche, une seconde couche juxtaposée et faisant face à la première, au moins une des couches étant perméable au fluide. Ces structures ont également une région continue se trouvant entre les première et seconde couches et comprenant un polymère formant un hydrogel qui est réparti pratiquement uniformément dans toute la région. La région continue entoure au moins partiellement plusieurs zones espacées les unes des autres entre ces couches, ces zones étant pratiquement exemptes de polymère absorbant formant un hydrogel. Les première et seconde couches sont liées de sorte que le polymère absorbant formant un hydrogel est pratiquement immobilisé à l'état sec, de préférence au niveau de sites se trouvant à l'intérieur d'une pluralité de zones. De préférence, le polymère formant un hydrogel a une perméabilité au gel relativement grande de sorte qu'il forme une couche continue de gel servant à acheminer les fluides.
Haynes Nancy Ann
Young Gerald Alfred
Sim & Mcburney
The Procter & Gamble Company
LandOfFree
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