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公开(公告)号：US11851819B2
公开(公告)日：2023-12-26
申请号：US17295962
申请日：2019-11-14
申请人： Stora Enso OYJ
发明人： Isabel Knöös
IPC分类号： D21H11/20 , C08J7/043 , C08J7/048 , D21H17/36 , D21H19/56 , D21H21/14 , D21H27/36 , D21H27/16 , D21H27/18
CPC分类号： D21H11/20 , C08J7/043 , C08J7/048 , D21H17/36 , D21H19/56 , D21H21/14 , D21H27/16 , D21H27/18 , D21H27/36 , C08J2301/10 , C08J2423/06
摘要： The present invention relates to a gas barrier film for a paper or paperboard based packaging material, said gas barrier film comprising: a microfibrillated cellulose layer (MFC layer), at least one surface of which has been grafted with a fatty acid halide; and a polymer layer disposed on the at least one surface of the MFC layer which has been grafted with a fatty acid halide. The present invention further relates to a paper or paperboard based packaging material, containers and carton blanks comprising the gas barrier film, and to a method for manufacturing the gas barrier film.
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公开(公告)号：US20210207324A1
公开(公告)日：2021-07-08
申请号：US16755387
申请日：2018-10-09
申请人： Stora Enso OYJ
发明人： Isabel Knöös
摘要： 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：US20220002946A1
公开(公告)日：2022-01-06
申请号：US17295962
申请日：2019-11-14
申请人： Stora Enso OYJ
发明人： Isabel Knöös
IPC分类号： D21H11/20 , D21H17/36 , D21H19/56 , D21H27/16 , D21H27/18 , D21H21/14 , C08J7/048 , C08J7/043
摘要： The present invention relates to a gas barrier film for a paper or paperboard based packaging material,said gas barrier film comprising: a microfibrillated cellulose layer (MFC layer), at least one surface of which has been grafted with a fatty acid halide; and a polymer layer disposed on the at least one surface of the MFC layer which has been grafted with a fatty acid halide. The present invention further relates to a paper or paperboard based packaging material,containersand cartonblanks comprising the gas barrier film, and to a method for manufacturing the gas barrier film.
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公开(公告)号：US20200023409A1
公开(公告)日：2020-01-23
申请号：US16481688
申请日：2017-01-30
申请人： Stora Enso OYJ
发明人： Lars Axrup , Isabel Knöös , Christian Aulin , Magnus Hillergren , Tom Lindström , Göran Ström
摘要： 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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公开(公告)号：US20230002572A1
公开(公告)日：2023-01-05
申请号：US17757256
申请日：2020-12-22
申请人： Stora Enso OYJ
发明人： Otto Nylén , Isto Heiskanen , Isabel Knöös
摘要： 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：US11248343B2
公开(公告)日：2022-02-15
申请号：US16755387
申请日：2018-10-09
申请人： Stora Enso OYJ
发明人： Isabel Knöös
摘要： 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：US20240271368A1
公开(公告)日：2024-08-15
申请号：US18568432
申请日：2022-06-07
申请人： Stora Enso OYJ
发明人： Åsa Nyflött , Chris Bonnerup , Isabel Knöös , Anders Karlsson
IPC分类号： D21H19/34 , C08J5/18 , C08J7/04 , C09D101/28 , C09D105/14 , D21H17/26 , D21H19/54
CPC分类号： D21H19/34 , C08J5/18 , C08J7/0427 , C09D101/286 , C09D105/14 , D21H17/26 , D21H19/54 , C08J2401/28 , C08J2403/04 , C08J2405/02 , C08J2405/04 , C08J2405/08 , C08J2405/14
摘要： The present invention relates to an aqueous barrier coating composition comprising: 20-80% by weight of a dissolved first polysaccharide having a first degree of polymerization (DP1) of at least 150, based on the total solids content of the aqueous barrier coating composition; and 20-80% by weight of a dissolved second polysaccharide having a second degree of polymerization (DP2) of 100 or less, based on the total solids content of the aqueous barrier coating composition; wherein the ratio of DP1:DP2 is at least 10:1; and wherein the aqueous barrier coating composition has a total solids content in the range of 10-90% by weight.
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公开(公告)号：US11724284B2
公开(公告)日：2023-08-15
申请号：US16481688
申请日：2018-01-30
申请人： Stora Enso OYJ
发明人： Lars Axrup , Isabel Knöös , Christian Aulin , Magnus Hillergren , Tom Lindström , Göran Ström
IPC分类号： D21H11/18 , D21H21/14 , D21H23/50 , B05D7/04 , B05D1/02 , B05D1/30 , B05D1/38 , B05D7/00 , C08J5/18 , C09D101/02
摘要： 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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公开(公告)号：US20220340342A1
公开(公告)日：2022-10-27
申请号：US17595988
申请日：2020-06-25
申请人： Stora Enso OYJ
发明人： Isabel Knöös , Åsa Nyflött , Chris Bonnerup
摘要： The present invention relates to a gas barrier film for a paper or paperboard based packaging material, said gas barrier film comprising: a microfibrillated cellulose layer (MFC layer), at least one surface of which has been metallized; and a polymer dispersion coating layer disposed on at least one surface of the MFC layer. The present invention further relates to a paper or paperboard based packaging material, containers and carton blanks comprising the gas barrier film, and to a method for manufacturing the gas barrier film.
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10.发明申请PROCESS FOR PRODUCING A DISPERSION COMPRISING NANOPARTICLES AND A DISPERSION PRODUCED ACCORDING TO THE PROCESS 有权用于生产包含纳米颗粒和根据工艺生产的分散体的分散体的方法公开(公告)号：US20140302336A1
公开(公告)日：2014-10-09
申请号：US14354357
申请日：2012-10-25
申请人： Stora Enso OYJ
发明人： Isto Heiskanen , Lars Axrup , Mari-Ann Norborg , Isabel Knöös
CPC分类号： D21H19/34 , B82Y30/00 , C08J3/03 , C08J3/215 , C08J5/005 , C08J2301/02 , C08K3/22 , C08K3/34 , C08K3/346 , C08K3/36 , C08K7/18 , C08K2003/2241 , C08K2003/2248 , C08K2003/2265 , C08K2003/2286 , C08K2003/2296 , C08K2003/265 , C08L2205/16 , C09D101/02 , D21C9/00 , D21H11/18 , D21H15/02 , D21H17/25 , D21H19/40 , D21H21/16 , Y10T428/31982 , C08L1/02
摘要： The present invention relates to a process for producing a dispersion comprising microfibrillated cellulose and nanoparticles wherein the process comprises the steps; providing a slurry comprising pre-treated cellulose fibers, adding nanoparticles to the slurry and treating the slurry by mechanical disintegration so that a dispersion comprising microfibrillated cellulose is formed in which the nanoparticles are being absorbed to the surface of the microfibrillated cellulose and/or being absorbed into the microfibrillated cellulose. The invention further relates to a dispersion produced according to the process, a paper or board product being coated with a coating comprising said dispersion and a paper or board product being produced from said dispersion as well as a composite comprising said dispersion.
摘要翻译： 本发明涉及一种生产包含微纤化纤维素和纳米颗粒的分散体的方法，其中该方法包括以下步骤： 提供包含预处理的纤维素纤维的浆料，向浆料中加入纳米颗粒并通过机械分解处理浆料，从而形成包含微纤维化纤维素的分散体，其中纳米颗粒被吸收到微纤化纤维素的表面和/或被吸收 进入微纤化纤维素。 本发明还涉及根据该方法生产的分散体，涂覆有包含所述分散体的涂层的纸或纸制品以及由所述分散体生产的纸或纸制品以及包含所述分散体的复合材料。
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