Process for production of water-absorbing composites
A method comprising bringing droplets of an aqueous solution of a polymerizable monomer into contact with a fibrous substrate with polymerizing the monomer to thereby fix a water-absorbing resin particle precursor to the fibrous substrate, then adding thereto an aqueous solution of a crosslinking ag...
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| creator | ITOH KIICHI HIMORI SHUNICHI |
| description | A method comprising bringing droplets of an aqueous solution of a polymerizable monomer into contact with a fibrous substrate with polymerizing the monomer to thereby fix a water-absorbing resin particle precursor to the fibrous substrate, then adding thereto an aqueous solution of a crosslinking agent in such a manner that the temperature of the water-absorbing resin particle precursor is 60° C. or lower after the addition, and heating the precursor composite in an atmosphere at 90° C. or higher within 2 minutes after the addition to thereby crosslink the precursor. This method can provide a water-absorbing composite having a sufficient water-absorbing capacity under pressure and an excellent water-holding capacity. |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP |
| title | Process for production of water-absorbing composites |
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