PBAT, or polybutylene adipate terephthalate, is a copolymer of polyesters (copolyester), currently 100% derived from fossil resources. It is considered a bioplastic because it is biodegradable in industrial, domestic or soil compost.
PBAT is a flexible material, ideal for film extrusion. It is therefore mainly used in the formulation of plastic bags and sacks.
Advances in green chemistry mean that some of these monomers (such as butanediol, for example) may soon be obtained from biomass, enabling PBAT to be at least partially biobased in the long term.