RECYCLING OF SUPERABSORBENT POLYMER WITH AN EXTENSIONAL FLOW DEVICE

Poly(acrylic acid)-based superabsorbent polymer (SAP) in a feed stream is converted into poly(acrylic acid) (PAA) in an extensional flow device. The total energy used to degrade the SAP into PAA is less than about 50 MJ/kg SAP. Un polymère superabsorbant (SAP) à base de poly(acide acrylique) dans un...

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Bibliographic Details
Main Authors COLLIAS, Dimitris Ioannis, MCDANIEL, John Andrew, GILBERTSON, Gary Wayne, SIMONYAN, Arsen Arsenov, JAMES, Martin Ian
Format Patent
LanguageEnglish
French
Published 23.12.2021
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Summary:Poly(acrylic acid)-based superabsorbent polymer (SAP) in a feed stream is converted into poly(acrylic acid) (PAA) in an extensional flow device. The total energy used to degrade the SAP into PAA is less than about 50 MJ/kg SAP. Un polymère superabsorbant (SAP) à base de poly(acide acrylique) dans un courant d'alimentation est converti en un poly(acide acrylique) (PAA) dans un dispositif d'écoulement à extension. L'énergie totale utilisée pour dégrader le SAP en PAA est inférieure à environ 50 MJ/kg de SAP.
Bibliography:Application Number: WO2021US37188