METHOD FOR PRODUCING WATER-SOLUBLE POLYMER AND METHOD FOR PRODUCING WATER-ABSORBING RESIN

The present invention provides a method for highly efficiently producing a water-soluble polymer and a method for producing a water-absorbing resin having excellent ability to absorb water. The method for producing a water-soluble polymer comprises step (a1) in which starch is reduced in molecular w...

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Bibliographische Detailangaben
Hauptverfasser:	HOSOMI, Tetsuya, NOZAKI, Takahiro, MIYATA, Manabu, TANAKA, Atsushi, NISHIMOTO, Tomoyuki, OTA, Kusuo
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS DERIVATIVES THEREOF METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention provides a method for highly efficiently producing a water-soluble polymer and a method for producing a water-absorbing resin having excellent ability to absorb water. The method for producing a water-soluble polymer comprises step (a1) in which starch is reduced in molecular weight to thereby obtain a partial-starch-decomposition product and step (a2) in which an ionic functional group is introduced into the partial-starch-decomposition product obtained in the step (a1).