摘要 |
<p>A method is described for producing a film of thermoplastic material, more particularly of LDPE, PLA or PCL, incorporating substances with antimicrobial activity, comprising the steps of mixing at a temperature lower than or equal to 160°C a thermoplastic polymer having a melting point lower than or equal to 160°C and at least one substance with antimicrobial activity selected from the group consisting of lysozime, thymol and lemon extract; subjecting the mixture obtained to compression at the same temperature as that indicated above; cooling under compression to a temperature lower than or equal to 40°C, obtaining strips, which are divided into short pieces; feeding these short pieces into an extruder provided with a die and with heating means to bring the temperature thereinside to a value lower than or equal to 160°C; extruding the film through the die.</p> |
申请人 |
UNIVERSITA 'DEGLI STUDI DI FOGGIA;CONSIGLIO NAZIONALE DELLE RICERCHE |
发明人 |
DEL NOBILE, MATTEO, ALESSANDRO;CONTE, AMALIA;BUONOCORE, GIOVANNA, GIULIANA;INCORONATO, ANNA, LUCIA;MASSARO, ANGELANTONIO;PANZA, OLIMPIA |