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...

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Bibliographic Details
Main Authors ALFONSO ALEGRE, María José, ZAGALAZ LASIERRA, Patricia, CABALLERO LÓPEZ, Miguel Ángel
Format Patent
LanguageEnglish
French
German
Published 10.05.2023
Subjects
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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Summary: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.
Bibliography:Application Number: EP20160903891