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公开(公告)号：SE536780C2
公开(公告)日：2014-08-05
申请号：SE1150997
申请日：2011-10-26
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , AXRUP LARS , NORBORG MARIANNE , KNÖÖS ISABEL
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公开(公告)号：SE544299C2
公开(公告)日：2022-03-29
申请号：SE1951556
申请日：2019-12-23
Applicant: STORA ENSO OYJ
Inventor： KNÖÖS ISABEL , HEISKANEN ISTO , NYLÉN OTTO
IPC: C08J5/18 , B32B7/06 , C09D5/20 , C09D101/02 , C09D191/00 , D21H11/18 , D21H23/28
Abstract: A method for making a cellulose film comprising microfibrillated cellulose (MFC) is provided, said method comprising the step of: applying an aqueous emulsion of one or more vegetable oils to a surface of a casting substrate. Improved release of the MFC film can thus be achieved.
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公开(公告)号：PL3574143T3
公开(公告)日：2021-12-13
申请号：PL18704609
申请日：2018-01-30
Applicant: STORA ENSO OYJ
Inventor： AXRUP LARS , KNÖÖS ISABEL , AULIN CHRISTIAN , HILLERGREN MAGNUS , LINDSTRÖM TOM , STRÖM GÖRAN
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公开(公告)号：SE1951556A1
公开(公告)日：2021-06-24
申请号：SE1951556
申请日：2019-12-23
Applicant: STORA ENSO OYJ
Inventor： KNÖÖS ISABEL , HEISKANEN ISTO , NYLÉN OTTO
IPC: C08J5/18 , B32B7/06 , C09D5/20 , C09D101/02 , C09D191/00 , D21H11/18 , D21H23/28
Abstract: A method for making a cellulose film comprising microfibrillated cellulose (MFC) is provided, said method comprising the step of: applying an aqueous emulsion of one or more vegetable oils to a surface of a casting substrate. Improved release of the MFC film can thus be achieved.
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公开(公告)号：SE543028C2
公开(公告)日：2020-09-29
申请号：SE1851216
申请日：2018-10-08
Applicant: STORA ENSO OYJ
Inventor： KNÖÖS ISABEL
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, mixing the first suspension with at least one inorganic pigment 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.It also relates to a fibrous barrier layer comprising microfibrillated dialdehyde cellulose and at least one inorganic pigment.
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Patent Agency Ranking
公开(公告)号：SE1851113A1
公开(公告)日：2020-03-20
申请号：SE1851113
申请日：2018-09-19
Applicant: STORA ENSO OYJ
Inventor： LAND HENSDAL CECILIA , KNÖÖS ISABEL
Abstract: The present invention relates to a a method for manufacturing at least one layer of a film characterized by that 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, in which mixture less than 5% of the anhydroglucose units (AGU) of the total cellulose present therein comprise a dialdehyde,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 of film.
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公开(公告)号：SE1850252A1
公开(公告)日：2019-09-09
申请号：SE1850252
申请日：2018-03-08
Applicant: STORA ENSO OYJ
Inventor： SVENSSON ADRIANNA , BRANDÉN CARL-MAGNUS , LAND HENSDAL CECILIA , KNÖÖS ISABEL
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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18.发明专利
公开(公告)号：SE1751637A1
公开(公告)日：2019-06-23
申请号：SE1751637
申请日：2017-12-22
Applicant: STORA ENSO OYJ
Inventor： KNÖÖS ISABEL
Abstract: The invention relates to a multilayer, oxygen barrier film comprising:- a first layer (1) comprising at least 80 % by weight of microfibrillated cellulose (MFC) as calculated on the total solid content of said layer,- a second layer (2) comprising a polymer and optionally pigments, and - a third layer (3) comprising at least 40 %, preferably at least 50 %, by weight of chemically modified microfibrillated cellulose as calculated on the total solid content of said layer.The multilayer film of the invention has shown to provide excellent gas barrier properties, especially oxygen barrier properties, also at high humidity and also good strength properties.
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公开(公告)号：SE1751258A1
公开(公告)日：2019-04-12
申请号：SE1751258
申请日：2017-10-11
Applicant: STORA ENSO OYJ
Inventor： KNÖÖS ISABEL
Abstract: The present invention relates to a process for improving the strechability of films comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the oxygen barrier properties. According to the present invention, a film is formed from a suspension comprising microfibrillated cellulose having a broad size distribution.
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公开(公告)号：ZA201904128B
公开(公告)日：2022-07-27
申请号：ZA201904128
申请日：2019-06-25
Applicant: STORA ENSO OYJ
Inventor： AXRUP LARS , KNÖÖS ISABEL , AULIN CHRISTIAN , HILLERGREN MAGNUS , LINDSTRÖM TOM , STRÖM GÖRAN
Abstract: The method of the invention relates to a method of manufacturing a fibrous, oxygen barrier film by casting a suspension comprising microfibrillated cellulose onto a non-porous substrate in a number of subsequent steps with intermediate drying. The invention enables an efficient method to manufacture an MFC film by casting technology without the problems of cracks or voids formed in the film. By applying the MFC in several layers, with in-between drying, the distance the water has to diffuse through is shorter, whereby the evaporation is more efficient and the film properties are not negatively affected by the drying.
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