PBS, or poly(butylene succinate), is a biopolyester that is currently derived from 50 % renewable resources. Regarding its end-of-life, it is biodegradable under industrial composting conditions. It has good transformation properties, a melting temperature of around 120 °C and a certain flexibility that allows it to be used as a substitute for PP, for example.

It is therefore used in many applications in injection moulding, film or tube extrusion, but also in mixtures with other biodegradable polyesters in order to modulate their properties.

In the future, it could be 100 % biobased when all of its monomers can be obtained from biomass at industrial level.