After collecting 95% of the theoretical amount of water, bio-based dilinoleic diol (Pripol TM 2033, Croda, The Netherlands) and a second dose of TiO2/SiO2 catalyst were added to the reaction mixture. Polycondensation started when the pressure was decreased to 0.2-0.4 hPa and the temperature increased to 240°C. Bio-based poly(butylene succinate) (PBS) (BioPBS FZ79AC, ptt MCC, Biochem, Germany) and poly(butylene terephthalate-butylene adipate) (PBAT) (Ecoflex F BX 7011, BASF) were used as received. PBS and PBS-DLS blends with Ecoflex in 90/10 wt.% ratio were prepared with a "ZAMAK MERCATOR" twin-screw extruder with L/D=22. The processing temperature was set to different temperatures at different zones: 80 °C in the 1 st zone, 100 °C in the 2 nd zone, 120 °C in the 3 rd zone, and 140 C at the extrusion head. The process was carried out at a speed of 100 rpm/min. The polymer granules were dosed with a customized pneumatic feeder at a pressure of 5 bar. A pneumatic dispenser was used due to the large diameter of the granules. Polymer blends were extruded through the nozzle of 1 mm diameter, and the materials were cooled in a water bath and next granulated.