PRODUCTION OF POLYCONDENSATION POLYMER

PRODUCTION OF POLYCONDENSATION POLYMER

PROBLEM TO BE SOLVED: To produce a polycondensation polymer economically at good efficiency. SOLUTION: The product of transesterification is continuously fed into a heated vessel 1, and an inert gas having a temperature of at least 200 deg.C is continuously fed into the liquid phase of the product t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SAWAKI TORU, MURAOKA TAKESHI
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To produce a polycondensation polymer economically at good efficiency. SOLUTION: The product of transesterification is continuously fed into a heated vessel 1, and an inert gas having a temperature of at least 200 deg.C is continuously fed into the liquid phase of the product through the bottom of the vessel and passed continuously to the top of the vessel. The gas is continuously passed through a compressor 7 to an absorber 8. The compressed inert gas is continuously passed to a heater 9 and recirculated into the bottom of the vessel, while a polymer is withdrawn from the exit of the vessel.