초록 ▼

The present invention relates to layered bodies consisting of at least one plastic foam and/or latex foam layer and particulate, superabsorbent polymers for the absorption of water and aqueous liquids, which bodies comprise the superabsorber on, between, or below the foamed plastic and/or latex laye

The present invention relates to layered bodies consisting of at least one plastic foam and/or latex foam layer and particulate, superabsorbent polymers for the absorption of water and aqueous liquids, which bodies comprise the superabsorber on, between, or below the foamed plastic and/or latex layer in a quantitatively and/or locally predetermined and fixed areal configuration at a quantity ratio of plastic and/or latex foam to the superabsorber of 1:500 to 50:1. The plastic/latex foam may comprise fillers, pigments and/or synthetic fibers. The layered bodies have an increased absorption capacity for water and aqueous liquids; in particular under load. They are manufactured by spreading out the foam, applying the superabsorber in the predetermined quantity ratio, optionally by using a stencil, and by fixing it by means of a heat treatment. These layered bodies are used in hygienic articles, as components in natural or artificial soils, as insulating material for pipes and ducts, primarily for cables and constructional elements, as liquid-absorbing and liquid-storing component in packaging materials, and as a part in garments.

대표청구항 ▼

[ We claim:] [1.] A process consisting of:(a) spreading over a surface a plastic foam, a latex foam or a combination thereof having a weight per liter of 50-1,000 g/l at a layer thickness of 1-100,000 .mu.m;(b) applying a superabsorbent, particulate polymer on the foam layer in an amount such that t

[ We claim:] [1.] A process consisting of:(a) spreading over a surface a plastic foam, a latex foam or a combination thereof having a weight per liter of 50-1,000 g/l at a layer thickness of 1-100,000 .mu.m;(b) applying a superabsorbent, particulate polymer on the foam layer in an amount such that the quantity ratio of foamed plastic, foamed latex or combination thereof layer to the superabsorbent polymer ranges from 1:500-50:1; and(c) heat treating the composite material to affect cross-linkage of the foamed layers, thereby preparing a layered body of at least one foamed plastic layer, foamed latex layer or combination thereof and a particulate, superabsorbent polymer which absorbs water or aqueous liquids.