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公开(公告)号：WO2020075057A1
公开(公告)日：2020-04-16
申请号：PCT/IB2019/058547
申请日：2019-10-08
Applicant: STORA ENSO OYJ
Inventor： HANSSON, Susanne
Abstract: The present invention relates to a method for manufacturing at least one fibrous barrier layer wherein the method comprises the steps of: providing a suspension comprising intermixed microfibrillated cellulose (MFC) and microfibrillated dialdehyde cellulose(DA-MFC); addingpolyvinyl alcohol (PVOH) to said suspension and mix to form a mixture; applying said mixture to a substrate to form a wet fibrous web;and drying said wet web on said substrate to form a fibrous barrier layer.
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公开(公告)号：WO2021260606A1
公开(公告)日：2021-12-30
申请号：PCT/IB2021/055590
申请日：2021-06-24
Applicant: STORA ENSO OYJ
Inventor： HANSSON, Susanne , BÅDENLID, Raija , BACKFOLK, Kaj , HEISKANEN, Isto
Abstract: The present invention relates to a water-resistant fibrous material, such as flexible sheet, paper or paperboard, comprising a foam-formed fibrous ply, wherein said foam-formed fibrous ply has been subjected to grafting with a fatty acid halide to render the foam-formed fibrous ply water-resistant. The present invention further relates to a method for manufacturing the water-resistant fibrous material.
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公开(公告)号：WO2023067541A1
公开(公告)日：2023-04-27
申请号：PCT/IB2022/060091
申请日：2022-10-20
Applicant: STORA ENSO OYJ
Inventor： HANSSON, Susanne , BÅDENLID, Raija , BRANDÉN, Carl-Magnus
Abstract: The present invention relates to method for manufacturing a water-resistant mineral-coated cellulose-based substrate, said method comprising: a) providing a mineral-coated cellulose-based substrate comprising a cellulose-based substrate, and a mineral-coating layer disposed on at least one surface of said substrate, said mineral-coating layer comprising 50-95 wt% of particulate calcium carbonate, and 5-50 wt% of a water-dispersible binder, based on the total dry weight of the mineral coating; and b) treating the dry mineral-coating layer with a solvent-free fatty acid halide composition at a temperature above the melting temperature of the fatty acid halide but below 100 °C to obtain a water-resistant mineral-coated cellulose-based substrate.
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公开(公告)号：WO2017002005A1
公开(公告)日：2017-01-05
申请号：PCT/IB2016/053843
申请日：2016-06-28
Applicant: STORA ENSO OYJ
Inventor： KARLSSON, Annki , BÅDENLID, Raija , LINDBERG, Stig , HANSSON, Susanne
CPC classification number: D21H21/16 , B05D1/60 , B05D3/0227 , B05D3/0493 , B05D5/08 , B05D2203/22 , B05D2252/02 , C08B3/10 , D21H17/11 , D21H17/14 , D21H23/22 , D21H23/50
Abstract: Method for hydrophobing a cellulose substrate (1), which comprising a first side and a second side, which faces away from the first side. The method comprising the steps of drying a cellulose substrate (1) to a dry content above 80%, preferably above 85%,adding a vaporized fatty acid halide, to the first side of the cellulose substrate, and, at the same time perform vacuum sucking at the second side of the cellulose substrate, such that, the vaporized fatty acid penetrates the cellulose substrate (1) in a predetermined direction through the substrate.
Abstract translation: 用于疏水纤维素基材（1）的方法，所述纤维素基材（1）包括面向第一侧的第一侧和第二侧。 该方法包括以下步骤：将纤维素基材（1）干燥至干燥含量高于80％，优选高于85％，加入蒸发的脂肪酰卤，在纤维素基材的第一侧，同时进行真空 在纤维素基材的第二侧吸附，使得汽化的脂肪酸通过基材沿预定方向穿透纤维素基材（1）。
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公开(公告)号：WO2021111357A1
公开(公告)日：2021-06-10
申请号：PCT/IB2020/061439
申请日：2020-12-03
Applicant: STORA ENSO OYJ
Inventor： HANSSON, Susanne , BÅDENLID, Raija
Abstract: The present invention relates to a water-resistant cellulose-based substrate comprised of one or more plies, wherein said substrate has a basis weight in the range of 120-500 g/m2, and a density below 1000 kg/m3, wherein said substrate has been subjected to grafting with a fatty acid halide through the entire thickness of said substrate such that the substrate has a Cobbeo value (as determined according to standard ISO 535:2014 after 60 seconds) below 30 g/m2 and an edge wick index (Lactic acid 1% solution, 1 h at 23 °C and 50 % relative humidity) below 1 kg/m2h. The present invention further relates to a method for manufacturing the water-resistant cellulose-based substrate.
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Patent Agency Ranking
公开(公告)号：WO2020100101A1
公开(公告)日：2020-05-22
申请号：PCT/IB2019/059829
申请日：2019-11-15
Applicant: STORA ENSO OYJ
Inventor： HANSSON, Susanne , BÅDENLID, Raija , BRANDÉN, Carl-Magnus
Abstract: The present invention relates to a method for hydrophobizing a cellulose substrate, which comprises a first side and a second side, which faces away from the first side, wherein the method comprising the steps of: -drying the cellulose substrate to a dry content above 80%, preferably above 85%; -providing a fatty acid halide in spray form;and -guiding said fatty acid halide in spray form to contact the first side of the cellulose substrate, and at least partially penetrate the cellulose substrate.
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公开(公告)号：WO2020100097A1
公开(公告)日：2020-05-22
申请号：PCT/IB2019/059825
申请日：2019-11-15
Applicant: STORA ENSO OYJ
Inventor： HANSSON, Susanne , BÅDENLID, Raija , BRANDÉN, Carl-Magnus
Abstract: The present invention relates to a method for hydrophobizing a cellulose substrate (1), which comprising a first side and a second side, which faces away from the first side, the method comprising the steps of: -drying the cellulose substrate to a dry content above 80%, preferably above 85%; -providing a fatty acid halide in spray form; -converting said fatty acid halide in spray form into vaporized fatty acid halide; and -guiding said vaporized fatty acid halide to contact the first side of the cellulose substrate, and at least partially penetrate the cellulose substrate.
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公开(公告)号：WO2021229437A1
公开(公告)日：2021-11-18
申请号：PCT/IB2021/054010
申请日：2021-05-11
Applicant: STORA ENSO OYJ
Inventor： HANSSON, Susanne , BÅDENLID, Raija
Abstract: The present invention relates to a water-resistant mineral-coated cellulose-based substrate, comprising a cellulose-based substrate, and a mineral-coating layer disposed on at least one surface of said substrate, said mineral coating comprising 50-95 wt% of a particulate mineral and 5-50 wt% of a water-dispersible binder based on the total dry weight of the mineral coating, and wherein said mineral- coating layer has been subjected to grafting with a fatty acid halide. The invention further relates to a method for manufacturing the water-resistant mineral-coated cellulose-based substrate.
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公开(公告)号：WO2021165898A1
公开(公告)日：2021-08-26
申请号：PCT/IB2021/051417
申请日：2021-02-19
Applicant: STORA ENSO OYJ
Inventor： HANSSON, Susanne , BÅDENLID, Raija
Abstract: The present invention relates to a multilayered cellulose-based substrate, comprising a cellulose-based first layer, and a cellulose-based second layer in contact with said first layer, wherein said substrate has a basis weight above 85 g/m2, wherein said first layer comprises an internal sizing agent, and wherein said second layer has been subjected to grafting with a fatty acid halide through the entire thickness of said second layer. The invention further relates to a method for manufacturing the multilayered cellulose-based substrate.
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公开(公告)号：WO2021005451A1
公开(公告)日：2021-01-14
申请号：PCT/IB2020/056159
申请日：2020-06-30
Applicant: STORA ENSO OYJ
Inventor： HANSSON, Susanne , BÅDENLID, Raija , BACKFOLK, Kaj
IPC: D21H21/16 , B32B27/10 , D21H11/18 , D21H17/18 , D21H21/18 , D21H27/30 , C08B3/08 , D21H17/11 , D21H17/14
Abstract: The present invention relates to a paper or paperboard substrate having barrier properties, which substrate comprises a single or multiply structure with e.g. a top ply, a middle ply and a bottom ply, wherein at least one of said top ply and said bottom ply is provided with a high-density bio-barrier layer, and wherein said top or bottom ply provided with the high-density bio-barrier layer and said top or bottom ply not provided with the high-density bio-barrier layer have both been subjected to grafting with a fatty acid halide.
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