METHOD FOR OBTAINING BIODEGRADABLE POLYESTERETHERAMIDE

Method for obtaining biodegradable polyesteretheramide that comprises a stage of esterification and/or transesterification and amidation reaction, a stage of prepolycondensation, a stage of polycondensation, an optional stage of extraction, a stage of drying and a final stage of extrusion with addit...

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Bibliographische Detailangaben
Hauptverfasser:	ZAGALAZ LASIERRA, Patricia, ALFONSO ALEGRE, Maria José, CABALLERO LÓPEZ, Miguel Ángel
Format:	Patent
Sprache:	eng ; fre ; ger
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:	Method for obtaining biodegradable polyesteretheramide that comprises a stage of esterification and/or transesterification and amidation reaction, a stage of prepolycondensation, a stage of polycondensation, an optional stage of extraction, a stage of drying and a final stage of extrusion with additives. The invention presented provides a main advantage compared to that of EP 2628761, in that the method of obtaining PEEA enables better satisfaction of the needs of each client as regards viscosity, composition and additives; it enables reducing the amount of interface product that has lower commercial value and improves the colour of the product; while at the same time provides a more efficient process, ecologically cleaner and safer for all the operatives.