The invention relates to a preparation comprising thermoplastic polyurethane produced at least from the following starting materials: (a) isocyanate, (b) a substance which is reactive toward isocyanate and which preferably comprises (c) chain extender and/or (d) catalyst and, as other starting materials, (e) additional and/or auxiliary substances, which are either added to the thermoplastic polyurethane during the production process and thus are comprised in the thermoplastic polyurethane and/or are comprised in the preparation in addition to the thermoplastic polyurethane, where at least one of the starting materials comprises a phenoxy group or a derivative of the phenoxy group, where the base number of the preparation or of the mixture of the thermoplastic polyurethane comprised in the preparation and of all of the other starting materials present is smaller than 2, and to corresponding production methods and uses.