| abstract |
The invention relates to a method for obtaining biodegradable polyesteretheramide (PEEA), which comprises a step of performing esterification and/or transesterification and amidiation, a step of performing pre-polycondensation, a step of performing polycondensation, an optional step of extracting, a step of drying, and a final step of extruding with additives. The main advantage of the invention with respect to patent EP 2628761 is that this method of obtaining PEEA allows the needs of each client to be better satisfied in relation to viscosity, composition and additives, and allows the quantity of interface product, which has a lower commercial value, to be reduced and the colour of the product to be improved. All this is achieved with a method that is more efficient, more ecological, cleaner and safer for the operator. |