Acidolysis graphical abstract (IMAGE) Aarhus University Caption The graphic shows how the new combination of acidolysis and hydrolysis can recover up to 82 weight percent of the original material from flexible PUR foam – used in mattresses – as two separate fractions of diamines and polyols. The diamine is shown as TDA (toluene diamine). Credit Thomas Balle Bech, Aarhus University 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.