The commercial blend of PLA and PBAT known as Ecovio is a promising polymeric material for packaging applications . PBS/PBAT blends are used in the packaging industry and have similar mechanical properties (resilience and flexibility ) to films made of low-density polyethylene. This type of blend can be obtained with the use of extrusion technology . In this work, we analyze the effect of PBAT (Ecoflex) on the oxygen permeability of new blends based on PBS-DLS and PBAT. Likewise, the thermal and mechanical analyses were performed to demonstrate the potential of new blends in the packaging applications.