Trinseo announced that it has been working with CEDAP to provide food contact compliant recycled polystyrene (rPS) for the yogurt cups of the French brand Les 300 Laitiers Bio since April 2022. The brand is a holding of Eurial Ultra-Frais, the European agricultural cooperative. The material used for the application is Trinseo's STYRON™ CO2RE™ CR55 Polystyrene Resin that combines 55% recycled styrene monomer feedstock with virgin, fossil-based content.

After refining and production, the material yields 50% rPS and this is what goes into the yogurt pot application. Depolymerization technology is used in the recycling process and allows polystyrene (PS) waste to be converted to its monomer (styrene), which is then combined with virgin content in manufacturing with no distinction between the two materials. Consequently, STYRON™ CO2RE™ CR55 Polystyrene Resins can be used in high quality, demanding applications including consumer electronics, packaging, household durables … and even food contact applications.

Using the Trinseo rPS, CEDAP produces a PS sheet roll and sends it to Eurial Ultra-Frais for yogurt pot thermoforming, filling, and sealing and, ultimately, delivery of the final Les 300 Laitiers BIO product to the retailer.