From TPU, formulations containing 0.3 wt% of Irganox 1076 or resveratrol were produced by mixing in solvent, followed by an evaporation step to obtain the TPU-based materials. Figure shows the mass loss curves and corresponding derivative curves (DTG) obtained by TGA analysis of TPU and its formulations with 0.3 wt% of antioxidant. T5% and Tdeg values are given in Table . Three conventional stages of TPU degradation are visible for the different analyzed materials. They are represented by three DTG peaks .