1. SABIC T&I Geleen, Postbus 475; Geleen AL 6160 The Netherlands
2. University of Applied Science Merseburg, Department of Engineering and Science, Eberhard-Leibnitz-Straße 2; Merseburg 06217 Germany
3. Polymer Service GmbH Merseburg, Eberhard-Leibnitz-Straße 2; Merseburg 06217 Germany