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公开(公告)号：ZA201800741B
公开(公告)日：2018-12-19
申请号：ZA201800741
申请日：2018-02-05
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , LYYTIKÄINEN KATJA
Abstract: A method of manufacturing a film comprising microfibrillated cellulose, wherein the method comprises the steps of: providing a first suspension comprising microfibrillated cellulose, having a dry content of from 0.2 to 2.0%, wherein the first suspension has a first Schopper-Riegler (SR) value; forming a first web of said suspension; at least partly dewatering said first web; applying a second suspension comprising microfibrillated cellulose, and/or fines and/or fibers onto a surface of said formed and at least partially dried first web, wherein the second suspension has a second Schopper-Riegler value which is higher than said first Schopper-Riegler value, thereby forming a film.
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公开(公告)号：SE537949C2
公开(公告)日：2015-12-01
申请号：SE1350512
申请日：2013-04-25
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , SAUKKONEN ESA , BACKFOLK KAJ , KAUPPI ANNA , SAXELL HEIDI , LYYTIKÄINEN KATJA
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公开(公告)号：SE2250127A1
公开(公告)日：2023-08-11
申请号：SE2250127
申请日：2022-02-10
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , LYYTIKÄINEN KATJA
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.
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公开(公告)号：SE544671C2
公开(公告)日：2022-10-11
申请号：SE2050425
申请日：2020-04-15
Applicant: STORA ENSO OYJ
Inventor： KAUPPI ANNA , HEISKANEN ISTO , KANKKUNEN JUKKA , BACKFOLK KAJ , LYYTIKÄINEN KATJA
IPC: C08J5/18 , B32B29/02 , B82Y30/00 , C08L1/02 , D21F1/00 , D21F11/04 , D21H11/18 , D21H21/56 , D21H27/30
Abstract: The present invention relates to a method for manufacturing a multilayer film comprising highly refined cellulose fibers, the method comprising the steps of: a) forming a first wet web by applying a first pulp suspension comprising highly refined cellulose fibers on a first wire;b) partially dewatering the first wet web to obtain a first partially dewatered web; c) forming a second wet web by applying a foamed second pulp suspension comprising highly refined cellulose fibers and a foaming agent on a second wire; d) partially dewatering the foamed second wet web to obtain a second partially dewatered web;e) joining the first and second partially dewatered web to obtain a multilayer web; andf) further dewatering, and optionally drying, the multilayer web to obtain a multilayer film comprising highly refined cellulose fibers.
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公开(公告)号：SE2050622A1
公开(公告)日：2021-12-02
申请号：SE2050622
申请日：2020-06-01
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , LYYTIKÄINEN KATJA
IPC: C09J103/02 , C09J11/08 , C09J101/02
Abstract: The present invention relates to a method for the production of an adhesive component wherein said method comprises the following steps: providing a suspension comprising starch granules, adding a suspension comprising microfibrillated cellulose to the suspension comprising starch granules, drying the starch granules and microfibrillated cellulose suspension to a dry content above 70 wt-% to form said adhesive component. The invention also relates to an adhesive, a corrugated board, paper and paperboard comprising said adhesive and to the adhesive component produced according to the method.
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Patent Agency Ranking
公开(公告)号：SE2050525A1
公开(公告)日：2021-11-08
申请号：SE2050525
申请日：2020-05-07
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , LYYTIKÄINEN KATJA
IPC: D21H19/08 , B05D3/00 , B32B15/12 , B32B15/20 , B32B29/06 , B82Y30/00 , C08J5/18 , C08L1/02 , C23C14/02 , C23C14/14 , C23C16/02 , C23C16/06 , D21H11/18
Abstract: The present invention is directed to a process for manufacturing a nano- coated pulp-based substrate comprising the steps of: a) providing a suspension comprising pulp, said pulp having Schopper Riegler value of at least 70°; b) using the suspension of step a) to form a wet web; c) dewatering and/or drying the wet web to form a substrate; d) reducing surface roughness of the substrate; providing a nano-coating on the surface of the substrate obtained in step d) such that a nano-coating having a thickness in the range of from 0.1 nm to 100 nm is provided on the substrate.
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公开(公告)号：BR112021011407A2
公开(公告)日：2021-08-31
申请号：BR112021011407
申请日：2019-12-20
Applicant: STORA ENSO OYJ
Inventor： CUNHA GISELA , HEISKANEN ISTO , BACKFOLK KAJ , LYYTIKÄINEN KATJA
Abstract: materiais fibrosos tratados em superfície e métodos para sua preparação. a presente invenção se refere a um método para preparação de um material fibroso tratado em superfície compreendendo nanocelulose fosforilada, no qual um material fibroso é tratado em superfície com uma solução compreendendo pelo menos um íon de metal multivalente seguido por secagem e pós-cura para aperfeiçoar as propriedades de barreira do material. materiais fibrosos como tais são também proporcionados.
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公开(公告)号：SE543736C2
公开(公告)日：2021-07-06
申请号：SE1951260
申请日：2019-11-04
Applicant: STORA ENSO OYJ
Inventor： BONNERUP CHRIS , HEISKANEN ISTO , BACKFOLK KAJ , LYYTIKÄINEN KATJA
Abstract: A method for reducing the surface oil absorption of cellulose based substrate is provided, in which a coating composition is applied to said substrate; and in which the coating composition comprises carboxymethyl cellulose (CMC) and/or a salt of carboxymethyl cellulose (CMC). A coated paperboard, and a laminate of the coated paperboard with a polymer layer is also provided. The coating composition provides improved surface oil absorption and improved adherence of an overlying polymer layer.
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19.发明专利
公开(公告)号：SE542193C2
公开(公告)日：2020-03-10
申请号：SE1751305
申请日：2017-10-20
Applicant: STORA ENSO OYJ
Inventor： SAUKKONEN ESA , HEISKANEN ISTO , BACKFOLK KAJ , LYYTIKÄINEN KATJA
Abstract: The present invention relates to a method for manufacturing a film comprising microfibrillated cellulose wherein the method comprises the steps of; providing a suspension comprising a microfibrillated cellulose, adding an enzyme to the suspension, mixing the enzyme with the suspension to form a mixture, applying said mixture to a wire to form a fibrous web and drying said web to form said film. The present invention further relates to a film comprising microfibrillated cellulose having good barrier properties.
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公开(公告)号：SE542058C2
公开(公告)日：2020-02-18
申请号：SE1750625
申请日：2017-05-18
Applicant: STORA ENSO OYJ
Inventor： SAUKKONEN ESA , HEISKANEN ISTO , BACKFOLK KAJ , LYYTIKÄINEN KATJA
Abstract: A method of manufacturing a film having an oxygen transmission rate (OTR) value in the range of 0.1 to 200 cc/m*24h at 23°C, 50 % relative humidity (RH), and an OTR value in the range of 0.1 to 2000 cc/m*24h at 38°C at 85 % RH, comprising at least 60 % by weight nanocellulose based on the weight of the total amount of fibers in the film, wherein the method comprises the steps of, providing an aqueous suspension comprising said nanocellulose; forming a web from said aqueous suspension; calendering said web at a line load of at least 40 kN/m, and at a temperature of at least 60°C wherein said film is formed and said web has an OTR value in the range of 50 to 10000 cc/m*24h at 23°C, 50 % RH before said calendering step, or more preferably in the range of 500 to 5000 cc/m*24h at 23°C, 50 % RH before said calendering step.
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