LOW CRITICAL SOLUTION TEMPERATURE PURIFICATION OF OXAZOLINE POLYMER SOLUTIONS

LOW CRITICAL SOLUTION TEMPERATURE PURIFICATION OF OXAZOLINE POLYMER SOLUTIONS

Provided are methods for the purification of polymer solutions. In particular, the method enables the separation of impurities from an oxazoline polymer solution by raising the temperature of the polymer solution above its lower critical solution temperature (LCST), wherein a water rich phase and a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Varnell, Daniel F
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
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Beschreibung
Zusammenfassung:Provided are methods for the purification of polymer solutions. In particular, the method enables the separation of impurities from an oxazoline polymer solution by raising the temperature of the polymer solution above its lower critical solution temperature (LCST), wherein a water rich phase and a polymer rich phase separation occurs. The phases are then separated with the polymer rich phase containing a lower amount of impurities than before separation.