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.
|Numéro de brevet||US2010113734|
|CIB||C08G 18/ 00 A I|
|Date de priorité||27/09/07|
|Etat de la publication||Publié - 6 mai 2010|