Focus on PBS, a technical biopolyester combining flexibility and temperature resistance
Origin: a partially bio-based composition
PBS (polybutylene succinate) is a thermoplastic polyester belonging to the biopolyester family. The grades we offer are distinguished by their origin: they are partially bio-based, produced from biomass such as sugar cane, with up to 51% bio-based content.
This material incorporates optimised end-of-life management: it is biodegradable and compostable under industrial conditions (according to standard EN 13432). Unlike conventional plastics, which persist in the environment, PBS degrades under the action of micro-organisms in controlled temperature and humidity conditions, thus contributing to organic recovery.
Properties: flexibility, strength and technical sophistication
PBS has mechanical and thermal characteristics that make it an ideal complement to other bioplastics (such as PLA) for demanding applications:
- Up to 51% bio-based
- Industrially compostable
- Supple and flexible
- High resilience
- Good heat resistance (up to 90°C and above depending on grade)
- Suitable for food contact according to grades
PBS stands out in particular for its thermal resistance, which is superior to that of standard bioplastics, as well as its flexibility and impact resistance, which allow it to be used for technical parts.
Applications: from flexible packaging to technical components
Thanks to its compatibility with conventional processing methods (extrusion, injection moulding), PBS is a versatile material used in:
- Flexible packaging: compostable films, bio-waste collection bags
- Consumer goods: items requiring temperature control (e.g. lids for hot drinks cups)
- Technical parts: injection-moulded parts requiring good impact resistance
- Agriculture: mulching films
A complementary solution for industry:
PBS is an attractive alternative to replace certain fossil-based polyolefins (such as polypropylene or polyethylene) in specific applications. It provides flexibility and heat resistance where other biopolymers have limitations.