General University of Maine Publications

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Ashley Forbes

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Abstract/ Summary

The University of Maine has been issued a patent for a process to create strong composite laminates that are bound with cellulose nanofibrils (CNF). This technology, called Cellubound™, is part of UMaine's widening patent portfolio of strong, environmentally friendly products bound with CNF.

The process developed by UMaine researchers involves soaking sheets of paper in a CNF slurry, then layering the soaked sheets together and using a heated press to remove the water and bond the layers. The resulting product, made entirely of paper and uniquely impregnated with CNF, is strong, stiff and board-like, with the potential to replace plastics in a wide range of applications. It is also biodegradable, compostable, requires relatively little energy to produce, and the paper used for layering could be recycled from the waste stream.


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