PREPARATION OF WATER-ABSORBENT RESIN

PURPOSE:To prepare the title resin having a low water-sol. content by polymerizing specific (meth)acrylic acid monomer, a specific crosslinker, and a specific monomer each in a specified amt. CONSTITUTION:80-99.899mol% (meth)acrylic acid monomer having a degree of neutralization of 50-95mol%, 0. 001...

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Hauptverfasser:	KOBAYASHI HIROYA, HARADA NOBUYUKI, SHIMOMURA TADAO, SUMINAGA NORISUKE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To prepare the title resin having a low water-sol. content by polymerizing specific (meth)acrylic acid monomer, a specific crosslinker, and a specific monomer each in a specified amt. CONSTITUTION:80-99.899mol% (meth)acrylic acid monomer having a degree of neutralization of 50-95mol%, 0. 001-5mol% crosslinker having at least two polymerizable double bonds (e.g. trimethylolpropane triacrylate), and 0.1-15mol% monomer of the formula (wherein R is H or CH3; X is H, a monovalent metal, or ammonium; A and B are each 2-4C alkylene; and m is 0-50) are polymerized.