Polybutylene Adipate Terephthalate (PBAT) is a green eco-friendly biodegradable random copolymer biobased polymer that is both flexible and tough. This makes it an ideal blending resin for other biodegradable polymers that are strong but brittle. PBAT is a good alternative material to use in place of conventional low-density polyethylene that is made from oil or natural gas. PBAT is a biobased polymer that is made from fossil resources. The largest application for PBAT is flexible film that is used to make products like food packaging, industrial packaging, pet waste bags, shopping bags, cling wrap, lawn leaf and garbage bags. In addition, most biodegradable food services items (boxes, dishes, cups) are made from PBAT or one of its copolymer blends. The material is well suited for sheet extrusion, vacuum forming, blow molding and extrusion film applications. When properly stored the material has approximately a 12-month shelf life in the original sealed bag. Once the bag has been opened it is best to reseal the bag properly and use the material within 3 months. When used to make extruded film we suggest the customer uses the material within 6 months to achieve maximum product performance.


  1. Biodegradability: PBAT is biodegradable, meaning it can be broken down into simpler compounds by microorganisms under aerobic conditions, such as in composting environments. This property makes PBAT suitable for applications where environmental concerns are paramount, such as single-use packaging and agricultural films.

  2. Compostability: PBAT is compostable, meaning it can undergo degradation in industrial composting facilities along with organic waste, resulting in the production of carbon dioxide, water, and biomass. Composting PBAT helps divert organic waste from landfills and reduces the environmental impact of plastic waste.

  3. Flexibility and Toughness: PBAT exhibits good flexibility and toughness, making it suitable for applications requiring elongation and impact resistance, such as compostable bags, films, and food packaging.

  1. 4. Processing Versatility: PBAT can be processed using conventional plastic processing techniques, including extrusion, injection molding, and blow molding. This versatility allows for the manufacturing of a wide range of products, from films and sheets to molded articles and 3D printed objects.
  2. 5. Compatibility with Other Polymers: PBAT can be blended with other biodegradable polymers, such as polylactic acid (PLA), starch-based polymers, and polyhydroxyalkanoates (PHA), to tailor its properties for specific applications. These blends combine the advantages of different polymers, such as improved mechanical properties, thermal stability, and processability.
  3. 6. Regulatory Compliance: PBAT is compliant with various regulations and standards governing biodegradable and compostable materials, such as ASTM D6400 and EN 13432. These standards specify criteria for biodegradability, disintegration, and ecotoxicity, ensuring the environmental compatibility of PBAT-based products.
  4. 7. End-of-Life Options: PBAT products can be disposed of through composting, where they degrade into natural components without leaving harmful residues. Alternatively, they can be recycled through mechanical or chemical recycling processes, although infrastructure for recycling PBAT is still developing.

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