Invention Grant
US09365978B2 Process for producing a dispersion comprising nanoparticles and a dispersion produced according to the process
有权
制备包含纳米颗粒和根据该方法制备的分散体的分散体的方法
- Patent Title: Process for producing a dispersion comprising nanoparticles and a dispersion produced according to the process
- Patent Title (中): 制备包含纳米颗粒和根据该方法制备的分散体的分散体的方法
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Application No.: US14354357Application Date: 2012-10-25
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Publication No.: US09365978B2Publication Date: 2016-06-14
- Inventor: Isto Heiskanen , Lars Axrup , Mari-Ann Norborg , Isabel Knoos
- 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: SE1150997 20111026
- International Application: PCT/IB2012/055866 WO 20121025
- International Announcement: WO2013/061266 WO 20130502
- Main IPC: D21H19/34
- IPC: D21H19/34 ; C08J3/03 ; C08J3/215 ; C09D101/02 ; C08L1/02 ; D21C9/00 ; D21H11/18 ; D21H15/02 ; D21H19/40 ; D21H21/16 ; C08J5/00 ; D21H17/25 ; B82Y30/00
Abstract:
The present invention relates to a process for producing a dispersion comprising microfibrillated cellulose and nanoparticles wherein the process comprises the steps; providing a slurry comprising pre-treated cellulose fibers, adding nanoparticles to the slurry and treating the slurry by mechanical disintegration so that a dispersion comprising microfibrillated cellulose is formed in which the nanoparticles are being adsorbed to the surface of the microfibrillated cellulose and/or being adsorbed into the microfibrillated cellulose. The invention further relates to a dispersion produced according to the process, a paper or board product being coated with a coating comprising said dispersion and a paper or board product being produced from said dispersion as well as a composite comprising said dispersion.
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