Oxo-biodegradable plastics

Plastic bags and other products, e.g. agricultural mulching films, made with polyethylene (PE) are appearing on the market with the claim of being “degradable”, “oxo-degradable” or “oxo-fragmentable”, “oxo-biodegradable”, and sometimes even “compostable.”

This claim, however, does not comprise the same features as biodegradablity!

The underlying technology of oxo-degradability or oxo-fragmentation is based on special additives, which, if incorporated into standard resins, are purported to accelerate the degradation of the film products. This technology and the products are not new, and many valid doubts have been expressed as to whether these products deliver what they promise.

The manner of advertising these products has been examined in two lawsuits. In both cases the sentence was that producers/marketers made false claims with respect to biodegradability or compostability. Background information can be found in the section publications.

European Bioplastics considers the use of terms such as biodegradable and compostable without reference to acknowledged standards as misleading, and as such, not reproducible and verifiable.

Links
» ACCC News release: Court declares Nupak ‘Goody’ plastic bags conduct misleading, Oct 2010
» Australia Sentence, Dec 2004 (pdf, 1,3 mB)
» Defra Assessing the environmental impacts of oxy-degradable plastics across their life cycle – EV0422, Jan 2010 (pdf, 2,5 mB)
» European Bioplastics Factsheet: British Standard on oxo-biodegradation of plastics
Jun 2011 (pdf, 160 kB)
» European Bioplastics Position paper: Oxo-biodegradable Plastics,
Jul 2009 (pdf, 490 kB)
» Italy Sentence, Jan 2006 (pdf, 73 kB)
» Loughborough University News release: Research questions the environmental credentials of ‘degradable’ plastics, Mar 2010
» NAPCOR Another interesting position on degradable additives by NAPCOR: NAPCOR Opposes the Use of Degradable Additives in PET Packaging, Feb 2012 (website)
» SPI Position paper: Oxo-biodegradables and other degradable additives,
Jan 2010 (pdf, 235 kB)
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