METHOD FOR OBTAINING BIODEGRADABLE POLYMERS

Method for obtaining biodegradable polymers that comprises a stage of esterification and/or transesterification and amidation reaction, a stage of prepolycondensation, a stage of polycondensation, a stage of extraction and a stage of drying, eliminating in this way the use of chain extenders. The in...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	CABALLERO LOPEZ Miguel Angel, ALFONSO ALEGRE Maria Jose, ZAGALAZ LASIERRA Patricia
Format:	Patent
Sprache:	eng ; slv
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Method for obtaining biodegradable polymers that comprises a stage of esterification and/or transesterification and amidation reaction, a stage of prepolycondensation, a stage of polycondensation, a stage of extraction and a stage of drying, eliminating in this way the use of chain extenders. The invention herein presented has the main advantage that the polymer thus obtained can achieve all the range of viscosities desired and with an improved colour compared to the polymer from other methods, where chain extenders are used, while providing a more efficient process, environmentally cleaner and safer for the operatives.