PBS, or poly(butylene succinate), is a biopolyester currently derived from 50% renewable resources. Regarding its end of life, it is biodegradable under industrial composting conditions. It has good processing properties, a melting temperature of around 120°C and a certain flexibility enabling it to be used as a substitute for PP, for example.
It is therefore used in a wide range of applications, from injection molding and film or tube extrusion to blending with other biodegradable polyesters to modulate properties.
In future, it could be 100% biobased when all its monomers can be obtained industrially from biomass.