Invention Grant
- Patent Title: Pre-mix useful in the manufacture of a fiber based product
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Application No.: US16465426Application Date: 2017-11-30
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Publication No.: US11198973B2Publication Date: 2021-12-14
- Inventor: Kaj Backfolk , Isto Heiskanen , Esa Saukkonen
- Applicant: Stora Enso OYJ
- Applicant Address: FI Helsinki
- Assignee: Stora Enso OYJ
- Current Assignee: Stora Enso OYJ
- Current Assignee Address: FI Helsinki
- Agency: Greer, Burns & Crain, Ltd.
- Priority: SE1651582-7 20161201
- International Application: PCT/IB2017/057526 WO 20171130
- International Announcement: WO2018/100524 WO 20180607
- Main IPC: D21H11/18
- IPC: D21H11/18 ; D21H17/68 ; D21H17/29 ; D21H17/55 ; D21H17/45 ; D21H23/04
Abstract:
The present invention relates to a process wherein microfibrillated cellulose (MFC) is mixed with at least two retention aids, selected from a cationic or amphoteric polymer and a microparticle or nanoparticle as a pre-mix before dosing it to the stock in a process for manufacture of a fiber based product.
Public/Granted literature
- US20200002893A1 PRE-MIX USEFUL IN THE MANUFACTURE OF A FIBER BASED PRODUCT Public/Granted day:2020-01-02
Information query
