Method of forming a fibrous product

Harri Kiiskinen (Inventor), Esa Torniainen (Inventor), Karita Kinnunen-Raudaskoski (Inventor)

    Research output: PatentPatent


    The present invention relates to a method of forming a molded fibrous product, comprising the steps of foaming an aqueous suspension of natural fibers, optionally in combination with synthetic fibers, to provide a first fibrous foam, a surfactant may be added to aid the foaming, feeding the fibrous foam into a mold, mechanically withdrawing a part of the water contained in the foam to produce a solidified, moist fibrous composition, and evaporating water from the solidified, moist fibrous composition to produce a dry fibrous product.

    Patent family as of 9.11.2021
    CN105829414 A 20160803 CN201480060826 20140915      
    EP3044253 A1 20160720 EP20140843435 20140915      
    EP3044253 A4 20170315 EP20140843435 20140915      
    FI126194 B 20160815 FI20130005922 20130913      
    FI20135922 A 20150314 FI20130005922 20130913      
    US10259151 BB 20190416 US20140021708 20140915      
    US2016221233 AA 20160804 US20140021708 20140915      
    WO15036659 A1 20150319 WO2014FI50704 2014091

    Link to current patent family on right 

    Original languageEnglish
    Patent numberUS10259151B2
    Priority date13/09/13
    Filing date15/09/14
    Publication statusPublished - 30 Apr 2016
    MoE publication typeH1 Granted patent


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