Technological watch

REUSE OF BIOPLASTICS IN POLYMERISATION

The present invention relates to a process for the reuse in polymerization of a biodegradable polymeric composition re) comprising a mixture of polyesters. The process comprises the steps of: 1) reacting said polymeric composition with water at a temperature higher than the melting temperature of at least one of said polyesters, obtaining a depolymerization product comprising monomers of said polyesters and/or their oligomers in a mixture, 2) separating from said depolymerization product a fraction comprising impurities and/or fillers, 3) subjecting said monomers and/or oligomers to polymerization, in quantities from 1% to 100% by weight, with respect to the mixture subjected to polymerization, obtaining a polymeric composition biodegradable. Further objects of the invention are the polymers obtained by means of said reuse process, the biodegradable polymeric compositions that comprise said polymers and the biodegradable articles obtained from said composition

Publication date: 17/08/2023

Number: US2023257546A1 (A1)

Applicant: NOVAMONT S P A?[IT]

Inventor: BASTIOLI CATIA?[IT]; VALLERO ROBERTO?[IT]

Espacenet (Worldwide)

      

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 870292.