The Need

About 7 million tons of coated paper, paperboard and cardboard are currently manufactured annually worldwide. The standard coating material is petrochemical based polyethylene (PE). Typical laminate packaging contains about 20 mass percent of this material. Increased political, legislative and consumer pressure to reduce the dependency on fossil fuel based plastics, but also to produce recyclable solutions, poses a major challenge for packaging producers to seek alternative materials that do not harm the environment in their manufacture and end of life, are based on a sustainable resource, and offer similar performance to their conventional plastic counterparts. To this end, there is a great need to provide producers of coated paper, paperboard and cardboard manufacturers with a bio-based material that will enable them to substitute much of the currently used PE coating without compromising the humidity barrier properties of the resulting packaging materials and overcoming the current challenge to the recycling of such packaging.