Process for the production of a superabsorbent polymer

Process for the production of a superabsorbent polymer

The present invention relates to superabsorbent polymer comprising the comprising the free radical polymerization product of an aqueous monomer mixture containing at least one α, -ethylenically unsaturated monomer; at least one monomer having at least two α, -ethylenically unsaturated groups; a cros...

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Hauptverfasser: AUERNIG SABINE, HAGER MARC, KOHLER HANS-PETER, HARREN JORG, PLOCHINGER HARALD, GARTNER HERBERT, FRICKER DANIEL
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Sprache:eng
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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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creator AUERNIG SABINE
HAGER MARC
KOHLER HANS-PETER
HARREN JORG
PLOCHINGER HARALD
GARTNER HERBERT
FRICKER DANIEL
description The present invention relates to superabsorbent polymer comprising the comprising the free radical polymerization product of an aqueous monomer mixture containing at least one α, -ethylenically unsaturated monomer; at least one monomer having at least two α, -ethylenically unsaturated groups; a crosslinking agent having at least two polymerizable double bonds; iron ions in an amount of from about 0.1 to about 3 wppm based on the total weight of the aqueous monomer mixture; and at least one chelating agent in an amount to provide a molar ratio of chelating agent to iron ion of from about 0.8 to about 4.0.
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subjects 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
title Process for the production of a superabsorbent polymer
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