Co-extruded multi-layered cellulose-based film and a method for its manufacture and products manufactured therefrom

A packaging material comprising a co-extruded multi-layered cellulose-based film, comprising:

• a first film layer A comprising at least one first cellulose-based polymer and at least one second polymer,
• at least one sealing layer B being an outer layer and/or a middle layer of said film, wherein the sealing layer B comprises a first cellulose-based polymer being cellulose acetate propionate (CAP) and/or cellulose acetate butyrate (CAB), and at least one second polymer co-extruded in the sealing layer B and the second polymer co-extruded in the sealing layer B is selected from a group consisting of polybutylene succinate (PBS), polypropylene succinate (PPS), polybutylene succinate adipate (PBSA), polybutylene adipate terephthalate (PBAT), polycaprolactone (PCL), polybutylene adipate (PBA), polyhydroxyalkanoate (PHA), polyhydroxybutyrate (PHB), polyethylene furanoate (PEF), polybutylene terephthalate (PBT), polybutylene succinate terephthalate (PBST), and any polyester containing sebacic and/or azelaic acid and/or dodecanedioic acid as dicarboxylic acid alone or in combination with terephthalic acid, and any combination of these, and that the second polymer co-extruded in the sealing layer B is fed as 5 to 40 wt. % of a total weight of the sealing layer B, and a total amount of said first and said second polymer is at least 80 wt. % based on the total weight of said sealing layer B,
• one outer layer of the co-extruded multi-layered film comprises at least one slip additive in an amount of 1 to 5 wt. % based on the total weight of the one outer layer,
• said film is produced by a film extrusion process;
• and
• the packaging material is clear, transparent, and glossy.