**Acknowledgements**

Special thanks to the University Technician Gustavo Pierson, alIng. Federico Tirapelli, and Technician Javier Ríos Zabala, staff of the Higher Polytechnic Institute-U.N.R. for their collaboration in the design, construction of the gauge, and participation in the extrusion process.

To Dr. Patricia Frontini from INTEMA, UndMP and Dr. Javier Signorelli from IFIR, CONICET Rosario for their contributions and suggestions.

Finally, to Dr. Fernando Angiolini and Mr. Leonardo Tort, technical and managerial staff of the company ALFAVINIL S.A., who selflessly lent their collaboration to carry out the rheological tests and provided the material to be able to carry out the extrusion tests.
