The present disclosure is drawn to a composite particulate build material, including 92 wt % to 99.5 wt % polymeric particles having an average size from 10 μm to 150 μm and an average aspect ratio of less than 2:1, The composite particulate build material further includes from 0.5 wt % to 8 wt % reinforcing particles having an average size of 0.1 μm to 20 μm and an average aspect ratio of 3:1 to 100:1 applied to a surface of the polymeric particles.

Provided are superabsorbent materials composed of agar, and one or more water-soluble natural polysaccharides, and dietary compositions containing such superabsorbent materials. The disclosed superabsorbent materials have various food and therapeutic applications and can be used as loading vehicles for nutrients and therapeutic agents. Also provided are methods for preparing such superabsorbent materials.

The present invention relates to a super-absorbent polymer having excellent properties, both centrifugal retention capacity (CRC) and absorption under pressure (AUP) having been improved by introducing a surface crosslinked layer crosslinked by surface-modified inorganic particles, and to a method for preparing the same. The super-absorbent polymer comprises: a base resin powder containing a crosslinked polymer of water-soluble ethylene-based unsaturated monomers having an at least partially neutralized acidic group; and a surface crosslinked layer formed on the base resin powder, wherein inorganic particles may be chemically bound to the crosslinked polymer contained in the surface crosslinked layer, via an oxygen-containing bond or a nitrogen-containing bond.

A super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers, and can exhibit excellent performance.

It is an object of the present invention to provide a resin composite that is excellent in water resistance and is capable of exerting sufficient strength even under wet conditions. The present invention relates to a resin composite comprising a resin, fibers having an ionic functional group, and a polyvalent ion. The fibers having an ionic functional group are preferably cellulose fibers having a fiber width of 1000 nm or less.

A super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers, and can exhibit excellent performance.

A water-soluble film that shows a small change between a film hardness at the time of its normal state and a film hardness at high temperature at the time of its forming or immediately after the forming, that has satisfactory formability, and that is excellent in pinhole resistance and bag breakage resistance includes: a polyvinyl alcohol resin (A); and a plasticizer (B), wherein the plasticizer (B) contains a polyhydric alcohol (b1) having a melting point of 80° C. or more, a polyhydric alcohol (b2) having a melting point of 50° C. or less, and a polyhydric alcohol (b3) having a melting point of more than 50° C. and less than 80° C., and wherein a content ratio (X) of the polyhydric alcohol (b3) with respect to a total amount of the polyhydric alcohols (b1), (b2), and (b3) is 15 wt. % or less.

Provided are superabsorbent materials composed of agar, and one or more water-soluble natural polysaccharides, and dietary compositions containing such superabsorbent materials. The disclosed superabsorbent materials have various food and therapeutic applications and can be used as loading vehicles for nutrients and therapeutic agents. Also provided are methods for preparing such superabsorbent materials.

A hydrogel sheet includes a hydrogel, and a plurality of intermediate substrates placed in the hydrogel. The plurality of intermediate substrates includes first and second intermediate substrates. The first intermediate substrate has a stretch rate of 20% to 90% measured by the following measurement method. An intermediate substrate having a 20-mm width and a 100-mm length is clamped at 70-mm intervals in the length direction. Then, the intermediate substrate is stretched in the length direction at a stretch rate of 100 mm/min, and the length L (mm) of the intermediate substrate between the clamps when the maximum load was applied is measured. The stretch rate (%) is calculated as [(L−70)/70]*100. The second intermediate substrate satisfies either (i) the stretch rate is 100% to 200%; or (ii) the stretch rate is 20% to 90% and the maximum load at the time of being fractured is 5N to 15N.

One embodiment provides a modular green roof tray, house plant growth media and horticulture growth media, and a tree protection mat for weed and moisture control made from recycled disposable diapers. The growth medium and tree protection mat contain superabsorbent materials from diaper that can absorb waters and greatly reduce irrigation so to provide a drought resistant feature. One embodiment also provides a manufacturing process to perform 100% recycling of disposed diapers.