METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES BY SUSPENSION POLYMERIZATION
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United States of America Patent
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Nov 19, 2020
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Aug 3, 2020
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Feb 27, 2015
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Abstract
A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the agglomerated base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 140 to 220° C.
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