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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
Applicant: Stora Enso OYJ
Inventor： Lars Axrup , Isabel Knöös , Christian Aulin , Magnus Hillergren , Tom Lindström , Göran Ström
IPC: D21H11/18 , D21H21/14 , D21H23/50 , B05D7/04 , B05D1/02 , B05D1/30 , B05D1/38 , B05D7/00 , C08J5/18 , C09D101/02
CPC classification number: B05D7/04 , B05D1/02 , B05D1/30 , B05D1/38 , B05D7/534 , C08J5/18 , C09D101/02
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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2.发明授权Process for producing a dispersion comprising nanoparticles and a dispersion produced according to the process 有权制备包含纳米颗粒和根据该方法制备的分散体的分散体的方法公开(公告)号：US09365978B2
公开(公告)日：2016-06-14
申请号：US14354357
申请日：2012-10-25
Applicant: Stora Enso OYJ
Inventor： Isto Heiskanen , Lars Axrup , Mari-Ann Norborg , Isabel Knoos
IPC: D21H19/34 , C08J3/03 , C08J3/215 , C09D101/02 , C08L1/02 , D21C9/00 , D21H11/18 , D21H15/02 , D21H19/40 , D21H21/16 , C08J5/00 , D21H17/25 , B82Y30/00
CPC classification number: 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
Abstract: 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 adsorbed to the surface of the microfibrillated cellulose and/or being adsorbed 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.
Abstract translation: 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，从而形成包含微纤化纤维素的分散体，其中纳米颗粒被吸附到微纤化纤维素的表面和/或被吸附 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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3.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
Applicant: Stora Enso OYJ
Inventor： Isto Heiskanen , Lars Axrup , Mari-Ann Norborg , Isabel Knöös
CPC classification number: 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
Abstract: 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.
Abstract translation: 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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公开(公告)号：US20200023409A1
公开(公告)日：2020-01-23
申请号：US16481688
申请日：2017-01-30
Applicant: Stora Enso OYJ
Inventor： Lars Axrup , Isabel Knöös , Christian Aulin , Magnus Hillergren , Tom Lindström , Göran Ström
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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公开(公告)号：US20180237990A1
公开(公告)日：2018-08-23
申请号：US15755407
申请日：2016-08-23
Applicant: Stora Enso OYJ
Inventor： Isto Heiskanen , Henri Kastinen , Lars Axrup , Saija Pollanen , Jani Korhonen , Petri Suhonen , Teemu Tiainen , Matti Vakevainen
Abstract: Method for producing microfibrillated cellulose(MFC), wherein the method comprising the steps of: Pre-treating of chemical pulp, such that, the pulp reaches a Schopper-Riegler (SR) value above 50, and refining the pulp, at a consistency of 3-6%, in a refiner with refiner blades, wherein the height of the refiner blades is in the range 2-3 mm.
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Patent Agency Ranking
公开(公告)号：US20170107669A1
公开(公告)日：2017-04-20
申请号：US15389482
申请日：2016-12-23
Applicant: Stora Enso Oyj
Inventor： Lars Axrup , Heidi Saxell , Veikko Jokela , Henri Kastinen , Anna Kauppi , Kaj Backfolk , Nina Ruohoniemi , Risto Laitinen , Isto Heiskanen , Teija Laukala
CPC classification number: D21H17/675 , C08B15/02 , C08K3/26 , C08K2003/265 , C08L2205/16 , D21H11/18 , D21H17/24 , D21H17/64 , D21H17/67 , C08L1/04
Abstract: A substantially dry composite material comprising a nanofibrillated polysaccharide and two or more additives, wherein the composite nanofibrillated polysaccharide is a microfibrillated cellulose and wherein the additives are lime milk and carbon dioxide, wherein the additives are allowed to react with each other and forming a precipitated calcium carbonate on the nanofibrillated polysaccharide, thereby forming a composite product comprising precipitated calcium carbonate and nanofibrillated polysaccharide.
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7.发明申请METHOD FOR THE PREPARATION OF CELLULOSE ETHERS WITH A HIGH SOLIDS PROCESS, PRODUCT OBTAINED AND USES OF THE PRODUCT 审中-公开用高固体工艺制备纤维素的方法，产品获得和使用产品公开(公告)号：US20150094464A1
公开(公告)日：2015-04-02
申请号：US14390519
申请日：2013-04-04
Applicant: Stora Enso OYJ
Inventor： Heidi Saxell , Isto Heiskanen , Lars Axrup , Cecilia Land Hensdal , Veikko Jokela
IPC: C08B11/12
Abstract: The present invention provides a method for production of cellulose ethers in a high solids process substantially without use of organic solvents as reaction and/or washing medium. In the method of the invention the first alkalization step is carried out by using high solids content cellulose pulp and solid sodium hydroxide. This is followed by an etherification step where the solids content is preferably further increased and the use of solid etherification reactant is preferred. As no organic solvents are used as reaction media the invented method enables production of cellulose ethers directly from never dried pulp with significant savings in energy and investment costs. The method is especially suitable for the production of carboxymethyl cellulose sodium salt (CMC) with low degree of substitution (DS
Abstract translation: 本发明提供了一种基本上不使用有机溶剂作为反应和/或洗涤介质的高固含量方法生产纤维素醚的方法。 在本发明的方法中，通过使用高固含量的纤维素纸浆和固体氢氧化钠来进行第一碱化步骤。 之后是醚化步骤，其中固体含量优选进一步增加，并且优选使用固体醚化反应物。 由于不使用有机溶剂作为反应介质，本发明的方法可以直接从未干燥的纸浆生产纤维素醚，从而显着节省能源和投资成本。 该方法特别适用于低取代度（DS <0.3）的羧甲基纤维素钠盐（CMC）的生产。 所得到的无水或低水溶性羧甲基化纤维素纤维的使用适用于例如用于生产微纤化纤维素。
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8.发明授权公开(公告)号：US10900169B2
公开(公告)日：2021-01-26
申请号：US14421708
申请日：2013-08-16
Applicant: STORA ENSO OYJ
Inventor： Isto Heiskanen , Cecilia Land Hensdal , Lars Axrup , Heidi Saxell
IPC: D21C9/00 , D21H11/18 , D21C5/00 , D21C9/18 , C08L1/02 , C12P19/04 , C12P19/14 , D21H17/00 , D21H17/67
Abstract: A method for the production of highly refined or microfibrillated cellulose (MFC), comprising the steps of treating cellulosic fibres to remove at least a major part of the primary wall of the fibres, drying the treated fibres, rewetting the treated fibres, and disintegrating the wetted fibres by mechanical means to obtain the final product. Dried cellulosic pulp is produced as an intermediate product of the method, having an average fibre length of at least 0.4 mm, while less than 50% of the primary wall material of natural untreated fibres is left in the intermediate product. Instead of transporting large amounts of dilute MFC dispersion the invention enables transport of the dry intermediate product to the MFC end user, who would complete the process by turning the intermediate product to final MFC by use of standard disintegrating devices.
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公开(公告)号：US20200086604A1
公开(公告)日：2020-03-19
申请号：US16604489
申请日：2018-04-11
Applicant: Stora Enso OYJ
Inventor： Cecilia Land Hensdal , Adrianna Svensson , Liv Bergqvist , Amy Tran Carlström , Lars Axrup
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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公开(公告)号：US10364297B2
公开(公告)日：2019-07-30
申请号：US15523177
申请日：2015-10-26
Applicant: Stora Enso OYJ
Inventor： Lars Axrup , Henri Kastinen
IPC: D21H11/18 , C08B1/00 , C08B15/00 , D21C9/00 , D21H11/20 , D21H15/02 , D21C5/00 , C08B15/02 , C08L1/02
Abstract: The present invention relates to a method for manufacturing microfibrillated polysaccharide, preferably microfibrillated cellulose. The invention also relates to microfibrillated cellulose obtainable by the method and use of the microfibrillated cellulose. The method of manufacturing microfibrillated cellulose comprises the following steps: a) Providing a hemicellulose containing pulp, b) Providing wood degrading enzymes c) Mixing pulp and enzymes d) Keeping the mixture in a continuous, flowing system of essentially cylindrical geometry (for example in a plug-flow reactor), e) Conveying the mixture to one or more mixing zones for recirculating and homogenizing the mixture, and f) Harvesting microfibrillated cellulose with a relatively narrow size distribution during the recirculation.
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