METHOD FOR PRODUCING A FILM OF THERMOPLASTIC MATERIAL CONTAINING A SUBSTANCE WITH ANTIMICROBIAL ACTIVITY AND USE OF THIS FILM IN THE PRODUCTION OF PACKAGING FOR FOOD

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Abstract

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.

Classe Tecnologica

A - Human Necessities

Patent Office

World Intellectual Property Organization

Numero Deposito

WO2010057658

Anno Deposito

2009

Anno Concessione

2010

Inventori Pugliesi

Tutti gli inventori

  • Del Nobile Matteo Alessandro
  • Conte Amalia
  • Buonocore Giovanna Giuliana
  • Incoronato Anna Lucia
  • Massaro Angelantonio
  • Panza Olimpia

Titolari pugliesi

Tutti i titolari

  • Università Degli Studi Di Foggia
  • Consiglio Nazionale Delle Ricerche