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Chementator Briefs

By Edited by Gerald Ondrey |

Depolymerization Last month, DuPont Teijin Films Ltd. (DTF; Contern, Luxembourg; www.dupontteijinfilms.com) launched its new LuxCR depolymerization process, which upcycles post-consumer waste into a variety of biaxially oriented polyethylene terephthalate (BOPET) films. The LuxCR process depolymerizes mechanically recovered PET flake back into the monomer unit bis(2-hydroxyethylterephthalate) (BHET), which is chemically indistinguishable from virgin monomer. This base monomer is then repolymerized into a polyester polymer that is subsequently converted into a wide range of BOPET films. Contamination is removed during the process through a combination of monomer and polymer filtration units and by vacuum extraction which runs for several hours at temperatures between 270 and 300°C.  Initial commercial launches are planned in Q2 of 2019 across a range of packaging formats and will include high-temperature food-contact applications, such as ready-meal lidding and ovenable flow-wrap structures. Although the initial focus for the LuxCR process is to provide a feedstock to DTF’s own film-manufacturing lines, feasibility studies are underway to see if the scope can be extended to include the external sale of polymer, which would open…
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