초록 ▼

A water-absorbent resin dispersion comprising a water-absorbent resin (B) or a hydrous gel thereof dispersed in a liquid or heat-meltable organic active-hydrogen compound (A), wherein said resin (B) is formed by the polymerization of a water-soluble monomer or its precursor and a cross-linker and/or

A water-absorbent resin dispersion comprising a water-absorbent resin (B) or a hydrous gel thereof dispersed in a liquid or heat-meltable organic active-hydrogen compound (A), wherein said resin (B) is formed by the polymerization of a water-soluble monomer or its precursor and a cross-linker and/or a polysaccharide in the compound (A); and a process for producing a polyurethane resin by the reaction of the dispersion with an organic polyisocyanate compound. As the polyurethane resin is excellent in the capacity and rate of absorption, it is useful as absorbent articles such as paper diaper and sanitary goods, humidity modifiers, cutoff material, and so forth.

대표청구항 ▼

[ We claim:] [1.] A water-absorbent resin dispersion comprising water-absorbent resin (B) or a hydrous gel thereof dispersed in at least one liquid or heat-meltable polyol (A) having a molecular weight of 500 to 50,000 selected from the group consisting of polyether polyol, polyester polyol, polybut

[ We claim:] [1.] A water-absorbent resin dispersion comprising water-absorbent resin (B) or a hydrous gel thereof dispersed in at least one liquid or heat-meltable polyol (A) having a molecular weight of 500 to 50,000 selected from the group consisting of polyether polyol, polyester polyol, polybutadiene polyol and acrylic polyol, wherein said (B) is formed upon in situ polymerization of a water-soluble vinyl monomer or a precursor thereof and a crosslinking agent in a W/O emulsion prepared by addition of said (A), the proportion of (B) relative to the combined weight of (A) and (B) being 1 to 70 wt %, and either said (B) or said hydrous gel thereof dispersed in said (A) having a mean particle diameter of 0.01 to 100 .mu.m.