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公开(公告)号：SE1950872A1
公开(公告)日：2021-01-10
申请号：SE1950872
申请日：2019-07-09
Applicant: STORA ENSO OYJ
Inventor： BACKFOLK KAJ , BÅDENLID RAIJA , HANSSON SUSANNE
IPC: B32B27/10 , D21H21/16 , C08B3/08 , D21H11/18 , D21H17/11 , D21H17/14 , D21H17/18 , D21H21/18 , D21H27/30
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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公开(公告)号：SE1851430A1
公开(公告)日：2020-05-17
申请号：SE1851430
申请日：2018-11-16
Applicant: STORA ENSO OYJ
Inventor： BRANDÉN CARL-MAGNUS , BÅDENLID RAIJA , HANSSON SUSANNE
IPC: D21H23/44 , D21H17/05 , D21H17/14 , D21H19/80 , D21H19/84 , D21H23/50 , D21H23/66 , D21J1/00 , D21J1/08
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：SE544175C2
公开(公告)日：2022-02-22
申请号：SE2050753
申请日：2020-06-24
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , BÅDENLID RAIJA , HANSSON SUSANNE
Abstract: The present invention relates to a water-resistant paper or paperboard comprising a foam-formed cellulose-based ply, wherein said foam-formed cellulose-based ply has been subjected to grafting with a fatty acid halide to render the foam-formed cellulose-based ply water-resistant. The present invention further relates to a method for manufacturing the water-resistant paper or paperboard.
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公开(公告)号：SE2050558A1
公开(公告)日：2021-11-14
申请号：SE2050558
申请日：2020-05-13
Applicant: STORA ENSO OYJ
Inventor： BÅDENLID RAIJA , HANSSON SUSANNE
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 mineralcoating 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：SE2050194A1
公开(公告)日：2021-08-22
申请号：SE2050194
申请日：2020-02-21
Applicant: STORA ENSO OYJ
Inventor： BÅDENLID RAIJA , HANSSON SUSANNE
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 150 g/m2, wherein said first layer comprises an internal sizing agent, wherein said second layer comprises no internal sizing agent or a lower amount of internal sizing agent than said first layer, 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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Patent Agency Ranking
公开(公告)号：SE1950871A1
公开(公告)日：2021-01-09
申请号：SE1950871
申请日：2019-07-08
Applicant: STORA ENSO OYJ
Inventor： BÅDENLID RAIJA , HANSSON SUSANNE
IPC: D21H21/16 , B32B27/10 , B32B29/00 , C08B3/08 , D21H11/18 , D21H17/11 , D21H17/14 , D21H17/18 , D21H21/18 , D21H27/30
Abstract: The invention relates to a paper or paperboard comprised of one or more plies, wherein at least one ply comprises a mixture of cellulose fibers and a strength enhancement agent selected from the group consisting of microfibrillated cellulose (MFC) and highly refined cellulose, and wherein said paper or paperboard has been subjected to grafting with a fatty acid halide such that ester bonds are formed between carbonyl groups of the fatty acid halide and hydroxyl groups of the cellulose fibers and the strength enhancement agent. The invention also relates to a method for manufacturing paper or paperboard.
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公开(公告)号：CA3145531A1
公开(公告)日：2021-01-14
申请号：CA3145531
申请日：2020-06-30
Applicant: STORA ENSO OYJ
Inventor： HANSSON SUSANNE , BADENLID RAIJA , BACKFOLK KAJ
IPC: D21H21/16 , B32B27/10 , C08B3/08 , D21H11/18 , D21H17/11 , D21H17/14 , D21H17/18 , D21H21/18 , D21H27/30
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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公开(公告)号：SE543174C2
公开(公告)日：2020-10-20
申请号：SE1851213
申请日：2018-10-08
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 first suspension comprising microfibrillated dialdehyde cellulose,providing a second suspension comprising microfibrillated cellulose and mixing said first suspension with said second suspension,adding polyvinylalcohol (PVOH) to said mixed first and second suspension and intermix 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. The present invention also relates to a fibrous barrier layer comprising a mixture of microfibrillated cellulose, microfibrillated dialdehyde cellulose and PVOH.
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公开(公告)号：SE543029C2
公开(公告)日：2020-09-29
申请号：SE1851430
申请日：2018-11-16
Applicant: STORA ENSO OYJ
Inventor： BRANDÉN CARL-MAGNUS , BÅDENLID RAIJA , HANSSON SUSANNE
IPC: D21H23/44 , D21H17/05 , D21H17/14 , D21H19/80 , D21H19/84 , D21H23/50 , D21H23/66 , D21J1/00 , D21J1/08
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 said method comprising the steps of:- drying the cellulose substrate (1) 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：ES2767949T3
公开(公告)日：2020-06-19
申请号：ES16817343
申请日：2016-06-28
Applicant: STORA ENSO OYJ
Inventor： KARLSSON ANNKI , BÅDENLID RAIJA , LINDBERG STIG , HANSSON SUSANNE
Abstract: Método para la conversión en hidrófobo de un sustrato (1) de celulosa, que comprende un primer lado y un segundo lado, que está de cara hacia afuera del primer lado, caracterizado porque el método comprende los pasos de: - secar el sustrato (1) de celulosa hasta un contenido seco superior al 80%, preferiblemente superior al 85%, - agregar un haluro de ácido graso vaporizado, al primer lado del sustrato de celulosa y, al mismo tiempo, realizar, - succión al vacío en el segundo lado del sustrato de celulosa, de modo que el haluro de ácido graso vaporizado penetra en el sustrato (1) de celulosa en una dirección predeterminada a través del sustrato (1) de celulosa.
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