公开(公告)号：US09365978B2

公开(公告)日：2016-06-14

申请号：US14354357

申请日：2012-10-25

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Lars Axrup ,  Mari-Ann Norborg ,  Isabel Knoos

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

CPC classification number: D21H19/34 ,  B82Y30/00 ,  C08J3/03 ,  C08J3/215 ,  C08J5/005 ,  C08J2301/02 ,  C08K3/22 ,  C08K3/34 ,  C08K3/346 ,  C08K3/36 ,  C08K7/18 ,  C08K2003/2241 ,  C08K2003/2248 ,  C08K2003/2265 ,  C08K2003/2286 ,  C08K2003/2296 ,  C08K2003/265 ,  C08L2205/16 ,  C09D101/02 ,  D21C9/00 ,  D21H11/18 ,  D21H15/02 ,  D21H17/25 ,  D21H19/40 ,  D21H21/16 ,  Y10T428/31982 ,  C08L1/02

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.

Abstract translation: 本发明涉及一种生产包含微纤化纤维素和纳米颗粒的分散体的方法，其中该方法包括以下步骤： 提供包含预处理的纤维素纤维的浆料，向浆料中加入纳米颗粒并通过机械分解处理浆料，从而形成包含微纤化纤维素的分散体，其中纳米颗粒被吸附到微纤化纤维素的表面和/或被吸附 进入微纤化纤维素。 本发明还涉及根据该方法生产的分散体，涂覆有包含所述分散体的涂层的纸或纸制品以及由所述分散体生产的纸或纸制品以及包含所述分散体的复合材料。

公开(公告)号：US20160060815A1

公开(公告)日：2016-03-03

申请号：US14786449

申请日：2014-04-22

Applicant: STORA ENSO OYJ

Inventor： Isto Heiskanen ,  Esa Saukkonen ,  Kaj Backfolk ,  Anna Kauppi ,  Heidi Saxell ,  Katja Lyytikainen

IPC: D21H21/30 ,  D21H11/04 ,  D21H21/28 ,  C08L1/02 ,  D21H17/37

CPC classification number: D21H21/30 ,  C08L1/02 ,  C08L2205/16 ,  D21H11/04 ,  D21H11/18 ,  D21H17/375 ,  D21H17/42 ,  D21H21/28 ,  C08L33/26

Abstract: The invention relates to a process for treating cellulose fibres which process comprises the steps of providing a slurry comprising cellulose fibers, adding anionic polyacrylamide (A-PAM) with high molar mass to the slurry in a first step and subjecting the slurry comprising fibers and A-PAM to a mechanical treatment in a second step thereby forming a composition comprising microfibrillated cellulose. The invention further relates to a composition produced according to the process.

Abstract translation: 本发明涉及一种处理纤维素纤维的方法，该方法包括以下步骤：提供包含纤维素纤维的浆料，在第一步中向浆料中加入高摩尔质量的阴离子聚丙烯酰胺（A-PAM），并对包含纤维和A -PAM在第二步中进行机械处理，由此形成包含微纤化纤维素的组合物。 本发明还涉及根据该方法生产的组合物。

公开(公告)号：US20140302336A1

公开(公告)日：2014-10-09

申请号：US14354357

申请日：2012-10-25

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Lars Axrup ,  Mari-Ann Norborg ,  Isabel Knöös

IPC: D21H19/34 ,  D21H17/25

CPC classification number: D21H19/34 ,  B82Y30/00 ,  C08J3/03 ,  C08J3/215 ,  C08J5/005 ,  C08J2301/02 ,  C08K3/22 ,  C08K3/34 ,  C08K3/346 ,  C08K3/36 ,  C08K7/18 ,  C08K2003/2241 ,  C08K2003/2248 ,  C08K2003/2265 ,  C08K2003/2286 ,  C08K2003/2296 ,  C08K2003/265 ,  C08L2205/16 ,  C09D101/02 ,  D21C9/00 ,  D21H11/18 ,  D21H15/02 ,  D21H17/25 ,  D21H19/40 ,  D21H21/16 ,  Y10T428/31982 ,  C08L1/02

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 absorbed to the surface of the microfibrillated cellulose and/or being absorbed 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.

Abstract translation: 本发明涉及一种生产包含微纤化纤维素和纳米颗粒的分散体的方法，其中该方法包括以下步骤： 提供包含预处理的纤维素纤维的浆料，向浆料中加入纳米颗粒并通过机械分解处理浆料，从而形成包含微纤维化纤维素的分散体，其中纳米颗粒被吸收到微纤化纤维素的表面和/或被吸收 进入微纤化纤维素。 本发明还涉及根据该方法生产的分散体，涂覆有包含所述分散体的涂层的纸或纸制品以及由所述分散体生产的纸或纸制品以及包含所述分散体的复合材料。

公开(公告)号：US12286752B2

公开(公告)日：2025-04-29

申请号：US18003187

申请日：2021-06-24

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Kaj Backfolk ,  Jukka Kankkunen ,  Anna Kauppi ,  Mikael Hjerpe ,  Juha Korvenniemi

IPC: D21F3/02 ,  C08J5/18 ,  D21C9/00 ,  D21F11/14 ,  D21H11/18

Abstract: The present invention relates to a method for dewatering a web comprising microfibrillated cellulose, wherein the method comprises the steps of: providing a suspension comprising between 50 wt-% to 100 wt-% of microfibrillated cellulose based on total dry weight, forming a fibrous web of said suspension on a support wherein said web has a dry content of 1-25% by weight, applying a dewatering felt into direct contact with the fibrous web, conducting said fibrous web, arranged between said dewatering felt and said support, through at least one shoe press equipment, drying the dewatered web to form a film which film has an Oxygen Transmission Rate (OTR) value (23° C., 50% RH) below 100 cc/m2/24 h according to ASTM D-3985.

公开(公告)号：US20250092607A1

公开(公告)日：2025-03-20

申请号：US18729241

申请日：2023-01-31

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Katja Lyytikäinen

IPC: D21H21/14 ,  B32B29/00 ,  B32B29/06 ,  D21H11/18 ,  D21H19/12 ,  D21H27/10

Abstract: The present invention relates to a method for preparing a surface-treated gas barrier film, said method comprising the steps of: a) providing a gas barrier substrate comprising at least 50 wt % of a highly refined cellulose pulp based on dry weight; and b) surface treatment of the gas barrier substrate, wherein the surface treatment comprises treating a surface of the gas barrier substrate with a solution comprising an organic acid and sodium carbonate and drying the gas barrier substrate to obtain a surface-treated gas barrier film. The invention further relates to a surface-treated gas barrier film obtained according to the method and a packaging laminate comprising the surface-treated gas barrier film.

公开(公告)号：US20250043512A1

公开(公告)日：2025-02-06

申请号：US18705099

申请日：2022-10-25

Applicant: Stora Enso OYJ

Inventor： Carl-Henrik Ljungqvist ,  Isto Heiskanen ,  Kaj Backfolk

IPC: D21H11/14 ,  D21B1/02 ,  D21C1/06 ,  D21C5/00

Abstract: The present invention relates to a method for manufacturing a highly refined cellulose composition, comprising: i) providing a fiber fraction comprising 20-100 wt % fibers obtained from used beverage cartons (UBC) based on the total dry fiber weight of the fiber fraction, ii) optionally subjecting the fiber fraction to mechanical, chemical or enzymatic pre-treatment, or a combination thereof, iii) subjecting the optionally pre-treated fiber fraction to refining at a consistency in the range of 0.5-30% by weight to a Schopper-Riegler (SR) in the range of 50-100, as determined by standard ISO 5267-1, to obtain the highly refined cellulose composition.

公开(公告)号：US12152115B2

公开(公告)日：2024-11-26

申请号：US17756985

申请日：2020-12-22

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Nina Miikki

IPC: C08J5/18 ,  B32B3/30 ,  B32B5/02 ,  B32B23/08 ,  B32B37/14 ,  B32B37/20 ,  B32B38/18 ,  C08J7/048 ,  D21H11/18 ,  D21H19/34

Abstract: A textured film is provided which comprises nanocellulose. At least a first surface of the film comprises a patterned, textured surface formed by repeating protruding regions and at least one non-protruding region arranged between said protruding regions. A particular height difference between the protruding and non-protruding regions can give liquid repellent properties. Methods for making the textured film are also provided.

公开(公告)号：US20240263401A1

公开(公告)日：2024-08-08

申请号：US18561430

申请日：2022-05-13

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Jukka Kankkunen ,  Ismo Saarinen ,  Jukka Lyyra ,  Juha Rvenniemi ,  Harri Taipale ,  Hannu Heikkinen

IPC: D21H27/40 ,  D21F11/12 ,  D21H11/04 ,  D21H11/06 ,  D21H11/14 ,  D21H21/16 ,  D21H27/38

CPC classification number: D21H27/40 ,  D21F11/12 ,  D21H11/04 ,  D21H11/06 ,  D21H11/14 ,  D21H21/16 ,  D21H27/38

Abstract: The present invention relates to a multi-ply liner for use in corrugated board, said multi-ply liner comprising: a first ply, and a second ply, wherein said first ply comprises at least 70 wt % unbleached kraft pulp and between 5-30 wt % neutral sulfite semi chemical (NSSC) pulp based on dry weight, and wherein said second ply comprises at least 50 wt % NSSC pulp and between 5-50 wt % unbleached kraft pulp based on dry weight.

公开(公告)号：US12006633B2

公开(公告)日：2024-06-11

申请号：US17757257

申请日：2020-12-22

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Otto Nylén

IPC: D21H23/24 ,  D06B1/10 ,  D06M13/02 ,  D06M13/10 ,  D06M13/188 ,  D06M15/17 ,  D06M15/227 ,  D06M101/06 ,  D21F11/00 ,  D21H19/16 ,  D21H19/28 ,  D21H19/66 ,  D21H27/02

CPC classification number: D21H23/24 ,  D06B1/10 ,  D06M13/02 ,  D06M13/10 ,  D06M13/188 ,  D06M15/17 ,  D06M15/227 ,  D21F11/006 ,  D21H19/16 ,  D21H19/28 ,  D21H19/66 ,  D21H27/02 ,  D06M2101/06

Abstract: A method is provided for coating a fibrous web, in particular a fibrous web comprising nanocellulose fibres. The method includes steps of applying a coating agent to a textured surface region of a textured substrate, applying a fibre furnish or a wet fibrous web onto the coated textured surface region of the textured substrate, optionally dewatering to provide a wet fibrous web, and drying said wet fibrous web such that at least a portion of said coating agent is transferred to said fibrous web. The method provides a coated fibrous web with improved barrier properties.

公开(公告)号：US20240133118A1

公开(公告)日：2024-04-25

申请号：US18548368

申请日：2022-03-08

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Kaj Backfolk ,  Katja Lyytikäinen ,  Anders Moberg ,  Jukka Kankkunen

IPC: D21H11/18 ,  D21F1/80 ,  D21F9/00 ,  D21H23/28 ,  D21H23/48 ,  D21H27/30

CPC classification number: D21H11/18 ,  D21F1/80 ,  D21F9/003 ,  D21H23/28 ,  D21H23/48 ,  D21H27/30

Abstract: The present invention relates to a method for manufacturing a barrier film comprising highly refined cellulose, said method comprising: a) providing a highly refined cellulose pulp suspension comprising highly refined cellulose pulp having a Schopper-Riegler (SR) number in the range of 40-98 as determined by standard ISO 5267-1 and a content of fibers having a length >0.2 mm of at least 7 million fibers per gram based on dry weight, at a consistency in the range of 0.1-1.5 wt %; b) forming a web of the highly refined cellulose pulp suspension and dewatering the web in a paper machine former on a wire to a consistency of at least 5 wt % to obtain a substrate web, wherein the white water removed from the pulp contains 2-25 wt %, preferably 5-20 wt % and more preferably at least 5-15 wt % of the solids of the highly refined cellulose pulp suspension provided in step a); c) optionally further dewatering and optionally drying the substrate web; d) coating the optionally further dewatered and optionally dried substrate web with a coating suspension comprising cellulose fines or microfibrillated cellulose to obtain a coated web; and e) dewatering and/or drying the coated web to obtain a barrier film comprising highly refined cellulose.