Researchers with PU products (IMAGE) Aarhus University Caption Polyurethane (PU) is a group of advanced plastic materials with many different properties and even more applications – like for instance the products portrayed here with the four researchers, that have now found a cheap and simple way to recycle the material. From left to right: Steffan K. Kristensen, Martin B. Johansen, Bjarke Donslund and Troels Skrydstrup. Credit Karoline Thorum Neumann, AU Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.