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公开(公告)号：WO2018189698A1
公开(公告)日：2018-10-18
申请号：PCT/IB2018/052543
申请日：2018-04-11
Applicant: STORA ENSO OYJ
Inventor： LAND HENSDAL, Cecilia , SVENSSON, Adrianna , BERGQVIST, Liv , TRAN CARLSTRÖM, Amy , AXRUP, Lars
Abstract: The present invention relates to a method for manufacturing at least one layer of a film wherein the method comprises the steps of; providing a first suspension comprising microfibrillated cellulose, providing a second suspension comprising microfibrillated dialdehyde cellulose, mixing the first suspension with the second suspension to form a mixture, applying said mixture to a substrate to form a fibrous web and drying said web to form at least one layer of said film. The present invention further relates to a film comprising said at least one layer.
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2.发明申请
公开(公告)号：WO2019171279A1
公开(公告)日：2019-09-12
申请号：PCT/IB2019/051783
申请日：2019-03-06
Applicant: STORA ENSO OYJ
Inventor： LAND HENSDAL, Cecilia , SVENSSON, Adrianna , BRANDÉN, Carl-Magnus
Abstract: The present invention relates to a method for manufacturing at least one layer of a film wherein the method comprises the steps of: providing a first suspension comprising dialdehyde cellulose fibers with a first degree of oxidation; providing at least a second suspension comprising dialdehyde cellulose fibers with a second degree of oxidation which is lower than said first degree of oxidation; mixing the first suspension with the second suspension to form a mixture; mechanically treating the cellulose fibers in said mixture to microfibrillated dialdehyde cellulose; applying said mixture to a substrate to form a fibrous web;and drying said web to form at least one layer of said film.
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公开(公告)号：WO2019116245A1
公开(公告)日：2019-06-20
申请号：PCT/IB2018/059917
申请日：2018-12-12
Applicant: STORA ENSO OYJ
Inventor： SVENSSON, Adrianna
Abstract: A method for oxidation of cellulose to dialdehyde cellulose (DAC), said method comprising: a) oxidizing cellulose with an aqueous periodate solution having a pH in the range of 3 to 5 to form oxidized cellulose comprising DAC; b) separating the aqueous periodate solution from the oxidized cellulose; c) regenerating the separated aqueous periodate solution by electrolytic oxidation; d) adjusting of the pH of the regenerated aqueous periodate solution to a value in the range of 3 to 5; and e) reusing the pH adjusted regenerated aqueous periodate solution, optionally combined with a make-up amount of fresh aqueous periodate solution, as the aqueous periodate solution in step a).
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公开(公告)号：WO2020044210A1
公开(公告)日：2020-03-05
申请号：PCT/IB2019/057175
申请日：2019-08-27
Applicant: STORA ENSO OYJ
Inventor： LAKOVAARA, Matias , HANSSON, Susanne , SVENSSON, Adrianna , SIRVIÖ, Juho , LIIMATAINEN, Henrikki
Abstract: The present invention relates to methods for hydrophobic modification of nanocellulose films by exposing the film to a deep eutectic solvent (DBS), as well as the hydrophobic modified nanocellulose films themselves so as to improve the barrier properties of said films.
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Patent Agency Ranking
公开(公告)号：WO2020044209A1
公开(公告)日：2020-03-05
申请号：PCT/IB2019/057174
申请日：2019-08-27
Applicant: STORA ENSO OYJ
Inventor： LAKOVAARA, Matias , HANSSON, Susanne , SVENSSON, Adrianna , SIRVIÖ, Juho , LIIMATAINEN, Henrikki
Abstract: The present invention relates to a method for treating a film comprising nanocellulose with an aqueous solution comprising tetraalkylammonium hydroxide, such as tetraethylammonium hydroxide and/or tetralkylammonium chloride, such as tetraethylammonium chloride or tetrabuthylammonium chloride to partly dissolve the film and to improve the barrier properties of the film. The invention also relates to a film produced according to the method and to a package comprising said film.
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公开(公告)号：EP3610066A1
公开(公告)日：2020-02-19
申请号：EP18784404.8
申请日：2018-04-11
Applicant: Stora Enso Oyj
Inventor： LAND HENSDAL, Cecilia , SVENSSON, Adrianna , BERGQVIST, Liv , TRAN CARLSTRÖM, Amy , AXRUP, Lars
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7.发明公开
公开(公告)号：EP3762538A1
公开(公告)日：2021-01-13
申请号：EP19713220.2
申请日：2019-03-06
Applicant: Stora Enso Oyj
Inventor： LAND HENSDAL, Cecilia , SVENSSON, Adrianna , BRANDÉN, Carl-Magnus
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8.发明公开
公开(公告)号：EP4544116A1
公开(公告)日：2025-04-30
申请号：EP23826637.3
申请日：2023-06-19
Applicant: Stora Enso Oyj
Inventor： BACKFOLK, Kaj , HEISKANEN, Isto , KANKKUNEN, Jukka , SVENSSON, Adrianna
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公开(公告)号：EP3724233A1
公开(公告)日：2020-10-21
申请号：EP18847219.5
申请日：2018-12-12
Applicant: Stora Enso Oyj
Inventor： SVENSSON, Adrianna
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