Method for the production of superabsorbers

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United States of America Patent

PATENT NO 12121877
SERIAL NO

17258931

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Abstract

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A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising the steps of continuously preneutralizing a monomer while cooling and partly recycling the preneutralized monomer into the preneutralization, continuously heating the preneutralized monomer by means of a heat exchanger and continuously postneutralizing the heated monomer, wherein the monomer solution or suspension prior to entry into the polymerization reactor is at a temperature of 70 to 99° C. and the temperature of the heating medium used in the heat exchanger is less than 160° C.

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Patent Owner(s)

Patent OwnerAddress
BASF SE67056 LUDWIGSHAFEN AM RHEIN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funk, Ruediger Ludwigshafen, DE 13 2
Krueger, Marco Ludwigshafen, DE 9 3
Pfeiffer, Thomas Ludwigshafen, DE 188 1377
Possemiers, Karl Antwerp, BE 15 8
Schroeder, Juergen Ludwigshafen, DE 49 449
Weismantel, Matthias Ludwigshafen, DE 135 2701

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