Biodegradable and Compostable Plastic Products

​​Overview of Biobased Polymers and Standards and Certifications of Bioplastics

May 26 , 2021
Bio-based Polymers

Bio-based polymers are defined as materials for which at least a portion of the polymer consists of material produced from renewable raw materials. For example, bio-based polymers may be produced from corn or sugarcane. The remaining portion of the polymers may be from fossil-fuel-based carbon.

Besides crude oil, natural gas, and coal, plastics can be derived from natural and renewable sources such as wood (cellulose), vegetable oils, sugar, and starch and can be defined as 'bio-based plastics but are often termed 'biopolymers' or 'bioplastics'.

Predominantly used biobased polymers

There are three main classes of biopolymers, classified according to the monomers used and the structure of the biopolymer formed: polynucleotides, polypeptides, and polysaccharides.

- Polysaccharides – Polysaccharides are the most important and popular biobased polymers used to make bioplastics mainly constitute starch and cellulose. Lesser-known polysaccharides are Chitin found in the shells of insects and animals.

- Biobased polymers from polysaccharides – Starch-based (Thermoplastic Starch), Cellulose-based (Cellophane, Cellulose acetates), PLA.

Bio-based Polymers

In November 2015, the biodegradable resin (grade: BG 100-F) and degradable plastic film (grade: BG 100-FP) produced by our company obtained the “compostable” and “DIN” labels, and the products conform to European EN13432 and American ASTM D6400 standard. Annual output: 20,000 tons

The picture below is the test report of our grade BP1003 raw materials

Degradable resin test report

We manufacture biodegradable material and bags, which are designed to be degraded by the action of living organisms. We have 6 types of resin to produce different types of products. Our resins are made from renewable material that is certified to meet the following most strict standards in the world ——EN 13432 (EU) to ensure its compostability. Equipped with our own R&D center to make our products initiative and competitive.

Bioplastics – Standards and Certifications

Bioplastic Standards

- ASTM – American Society for Testing and Materials (USA)
- ISO – International Organization for Standardization (international)
- CEN – European Committee for Standardization (European Union)


- In Europe, independent certificates for biodegradable plastics are issued by DIN Certco and Vincotte.

- Certificates for compostable plastics are also issued by the Biodegradable Products Institute (BPI, US).

Certification mark obtained by Sealong:

Biodegradable Certification

Finally, if you are interested in our biodegradable and compostable products, you can contact us to get free samples and quotations.

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