Method for improving the water tolerance of bio-based CNF-films

Jari Vartiainen (Inventor), Tero Malm (Inventor), Vesa Kunnari (Inventor), Tuomas Hänninen (Inventor), Tekla Tammelin (Inventor), Soledad Peresin (Inventor), Monika Österberg (Inventor), Leena-Sisko Johansson (Inventor)

    Research output: PatentPatent application


    The present invention relates to a continuous roll-to-roll process for improving the water tolerance of bio-based polymers, in particular cellulose nanofibrils (CNF) films. Furthermore, the invention provides a method, which combines surface modification/functionalization for improving water stability and wet strength, UV/Ozone treatment, corona treatment or plasma activation for purifying and activating the surface and thus increasing the reaction efficiency, and further hydrophobization of the surface of CNF film.

    Original languageEnglish
    Patent numberWO2016083674 A1
    IPCC23C 16/455,C08J5/18
    Priority date28/11/14
    Publication statusPublished - 2 Jun 2016
    MoE publication typeNot Eligible


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