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Flexible pouches satisfy polyethylene recycling

Recycling facilities do not have to worry about the presence of EVOH when packages incorporate RETAIN.

This mock-up of a granola package made with the RETAIN polymer modifiers .
This mock-up of a granola package made with the RETAIN polymer modifiers .

The Dow Chemical Company has created recyclable polythene-based barrier packaging using its RecycleReady Technology with RETAIN. Created through collaboration with the Sustainable Packaging Coalition (SPC), and other industry members, RecycleReady Technology with RETAIN helps converters create recyclable flexible barrier pouches and packaging. The aim of this technology is to divert packaging waste from landfills or incineration.

“RecycleReady Technology was first used for polyethylene pouches with low barrier applications, such as dry foods and frozen foods,” says Stacy Fields, North American director of packaging solutions, Dow Packaging & Specialty Plastics. “Dow has continued to enhance the technology to include better barrier, better stiffness, and higher temperature tolerances to expand end-use applications.”

The RETAIN polymer modifier was developed about four years ago, and was originally designed for post-industrial use at plastic film producers to recover ethylene vinyl alcohol (EVOH)-containing scrap for reuse in polyethylene films. By incorporating RETAIN compatibilizing polymer into the EVOH barrier film structure when it is made, the EVOH barrier polymer can now be dispersed into the polyethylene stream during reprocessing at a recycling facility.

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