Invention Grant
- Patent Title: Process for production of film comprising microfibrillated cellulose
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Application No.: US16080359Application Date: 2017-03-30
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Publication No.: US11319671B2Publication Date: 2022-05-03
- Inventor: Kaj Backfolk , Isto Heiskanen , Esa Saukkonen , Katja Lyytikäinen
- 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: SE1650437-5 20160401
- International Application: PCT/IB2017/051808 WO 20170330
- International Announcement: WO2017/168353 WO 20171005
- Main IPC: D21H11/18
- IPC: D21H11/18 ; D21H17/68 ; D21H17/37 ; D21H17/28 ; D21H17/55 ; D21H21/10 ; D21H27/38 ; D21H17/44 ; D21H17/29 ; D21H21/52 ; D21H17/24 ; D21H27/10 ; D21H17/13 ; D21H21/50 ; B82Y30/00
Abstract:
The present invention relates to a new process for improving dewatering when manufacturing a film comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the film properties. According to the present invention a high amount of nanoparticles is used as an additive, optionally together with a polymer.
Public/Granted literature
- US20190024318A1 PROCESS FOR PRODUCTION OF FILM COMPRISING MICROFIBRILLATED CELLULOSE Public/Granted day:2019-01-24
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