Polybutylene adipate terephthalate (PBAT) is a biodegradable and compostable copolymer from the group of polyesters.
PBAT can be used pure and as a compound with polylactic acid (PLA), polyhydroxyalkanoates (PHA), starch, lignin and cellulose.
Thanks to its special chemical structure, PBAT can be broken down by microorganisms and their enzymes. Under the conditions of an industrial composting plant – corresponding temperature, high humidity, defined oxygen content – the degradation takes place within a few weeks.
PBAT can be used as a substitute for polyethylene (PE) and is particularly similar to LD-PE in its properties. It is mainly used to produce films for packaging and agriculture (e.g. mulch films).