초록 ▼

An absorbent structure comprising freestanding osmotic absorbent sites disposed on or within a capillary substrate. The sites extend outwardly normal to the plane of the absorbent structure or fill apertures within the plane of the absorbent structure. Upon imbibing liquids, the sites of osmotic abs

An absorbent structure comprising freestanding osmotic absorbent sites disposed on or within a capillary substrate. The sites extend outwardly normal to the plane of the absorbent structure or fill apertures within the plane of the absorbent structure. Upon imbibing liquids, the sites of osmotic absorbent can expand without constraint from the substrate.

대표청구항 ▼

[ What is claimed is:] [1.] An absorbent structure comprising:a generally planar fibrous capillary substrate; andat least one site of an in situ polymerized osmotic absorbent hydrogel polymer having a proximal end joined to said fibrous capillary substrate, said osmotic absorbent hydrogel polymer fu

[ What is claimed is:] [1.] An absorbent structure comprising:a generally planar fibrous capillary substrate; andat least one site of an in situ polymerized osmotic absorbent hydrogel polymer having a proximal end joined to said fibrous capillary substrate, said osmotic absorbent hydrogel polymer further having a distal end freestanding from said capillary substrate, whereby said distal end can expand without constraint from said substrate upon imbibing liquids,said fibrous capillary substrate comprising regions of two different densities, an essentially continuous network high density region and a plurality of discrete low density regions, wherein said sites of the osmotic absorbent hydrogel polymer are disposed on said low density regions.