Process for hydrolyzing and neutralizing a crosslinked polymer of maleic anhydride and a C1-C5 alkyl vinyl ether, optionally with a hydrophobic monomer, substantially instantly at room temperature

A process for hydrolyzing and neutralizing a crosslinked polymer of maleic anhydride and a C1-C5 alkyl vinyl ether, and, optionally a hydrophobic monomer, in anhydride form substantially instantaneously in water at room temperature, which comprises reacting about 0.1-4% by weight of the crosslinked...

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Hauptverfasser: KWAK, YOON T, KOPOLOW, STEPHEN L
Format: Patent
Sprache:eng
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Zusammenfassung:A process for hydrolyzing and neutralizing a crosslinked polymer of maleic anhydride and a C1-C5 alkyl vinyl ether, and, optionally a hydrophobic monomer, in anhydride form substantially instantaneously in water at room temperature, which comprises reacting about 0.1-4% by weight of the crosslinked polymer in water at room temperature with ammonium hydroxide base, with stirring, to form a gel solution.