Résumé
A process for producing polylactide-urethane copolymers, which comprises the step of contacting a polylactide having terminal hydroxyl groups, produced by contacting at least one lactide monomer with a diol or diamine, with a diisocyanate compound optionally in the presence of a second diol or diamine in the presence of a catalytic system under polymerisation conditions characterised in that the polylactide and the polylactide-urethane copolymers are produced by reactive extrusion.
langue originale | Anglais |
---|---|
Numéro de brevet | US2010113734 |
CIB | C08G 18/ 00 A I |
Date de priorité | 27/09/07 |
Etat de la publication | Publié - 6 mai 2010 |
Modification externe | Oui |