Polycarbonate isolation through homogenization devolatization

This invention relates to a method for recovering polymer resins from solution. More particularly, it relates to a process for isolating a polymer resin from a liquid-liquid dispersion that is formed by admixing an aqueous fluid with an organic solvent that contains the dissolved polymer. Polymer ar...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: He, Qiwei, Wilson, Paul Russell, Buckley, Paul William, Yee Ko, Allen Wai, Divins, Larry Allen, Gately, William Lee, Kailasam, Ganesh
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:This invention relates to a method for recovering polymer resins from solution. More particularly, it relates to a process for isolating a polymer resin from a liquid-liquid dispersion that is formed by admixing an aqueous fluid with an organic solvent that contains the dissolved polymer. Polymer are removed from organic solvent-polymer mixtures by preparing a liquid-liquid dispersion of finely dispersed solvent droplets containing polymer in water, adding this liquid-liquid dispersion to a stirred vessel containing water or other suitable liquid and rapidly evaporating the solvent to produce a slurry of the polymer in a liquid from which the solid polymer particles are recovered.