On the 06/12/2011 till the 08/12/2012 in the frame of the Erasmus program, Prof. David Arencón Osuna from Spain (Centre Catalanya del Plastic Terrassa) visited our faculty. On the 07/12/2011 Prof. David Arencón gave two lectures titled Injection Molding of Polymer Materials, at the UVTE, MTF STU. The first lecture start at 10:00am and was intended for students. The second lecture starting at 12:30 and was intended for staff and PhD students of UVTE. After introducing the university and research laboratories a lecture was presented in which the latest results of scientific research into new polymeric materials as well as in injection molding technology was shown. We give thanks to all who made Prof. David Arencón’s stay present.