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

CPC分类号： B05D7/04 ,  B05D1/02 ,  B05D1/30 ,  B05D1/38 ,  B05D7/534 ,  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.

公开(公告)号：US09365978B2

公开(公告)日：2016-06-14

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 Knoos

IPC分类号： 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 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.

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。

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

IPC分类号： D21H19/34 ,  D21H17/25

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。

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

IPC分类号： B05D7/04 ,  B05D1/38 ,  B05D7/00 ,  C08J5/18 ,  C09D101/02 ,  B05D1/02 ,  B05D1/30

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.

公开(公告)号：US20180237990A1

公开(公告)日：2018-08-23

申请号：US15755407

申请日：2016-08-23

申请人： Stora Enso OYJ

发明人： Isto Heiskanen ,  Henri Kastinen ,  Lars Axrup ,  Saija Pollanen ,  Jani Korhonen ,  Petri Suhonen ,  Teemu Tiainen ,  Matti Vakevainen

IPC分类号： D21D1/20 ,  D21H11/18 ,  D21C9/00

CPC分类号： D21D1/20 ,  D21C9/007 ,  D21H11/18

摘要： 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.

公开(公告)号：US20170107669A1

公开(公告)日：2017-04-20

申请号：US15389482

申请日：2016-12-23

申请人： Stora Enso Oyj

发明人： Lars Axrup ,  Heidi Saxell ,  Veikko Jokela ,  Henri Kastinen ,  Anna Kauppi ,  Kaj Backfolk ,  Nina Ruohoniemi ,  Risto Laitinen ,  Isto Heiskanen ,  Teija Laukala

IPC分类号： D21H17/67 ,  C08B15/02 ,  D21H17/24 ,  D21H11/18 ,  D21H17/64

CPC分类号： D21H17/675 ,  C08B15/02 ,  C08K3/26 ,  C08K2003/265 ,  C08L2205/16 ,  D21H11/18 ,  D21H17/24 ,  D21H17/64 ,  D21H17/67 ,  C08L1/04

摘要： 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.

公开(公告)号：US20150094464A1

公开(公告)日：2015-04-02

申请号：US14390519

申请日：2013-04-04

申请人： Stora Enso OYJ

发明人： Heidi Saxell ,  Isto Heiskanen ,  Lars Axrup ,  Cecilia Land Hensdal ,  Veikko Jokela

IPC分类号： C08B11/12

CPC分类号： C08B11/12 ,  C08B1/08

摘要： 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

摘要翻译： 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。

公开(公告)号：US09926668B2

公开(公告)日：2018-03-27

申请号：US15389482

申请日：2016-12-23

申请人： Stora Enso Oyj

发明人： Lars Axrup ,  Heidi Saxell ,  Veikko Jokela ,  Henri Kastinen ,  Anna Kauppi ,  Kaj Backfolk ,  Nina Ruohoniemi ,  Risto Laitinen ,  Isto Heiskanen ,  Teija Laukala

IPC分类号： D21H11/18 ,  D21H17/67 ,  C08B15/02 ,  D21H17/64 ,  C08K3/26 ,  D21H17/24

CPC分类号： D21H17/675 ,  C08B15/02 ,  C08K3/26 ,  C08K2003/265 ,  C08L2205/16 ,  D21H11/18 ,  D21H17/24 ,  D21H17/64 ,  D21H17/67 ,  C08L1/04

摘要： 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.

公开(公告)号：US20170342661A1

公开(公告)日：2017-11-30

申请号：US15535456

申请日：2015-12-14

申请人： STORA ENSO OYJ

发明人： Christian Aulin ,  Lars Axrup ,  Göran Flodberg ,  Magnus Hillergren ,  Tom Lindström ,  Carl-Henrik Ljungqvist ,  Göran Ström

IPC分类号： D21H19/34 ,  D21H23/70 ,  D21H11/18 ,  D21H23/50 ,  D21H27/32 ,  D21H27/10

CPC分类号： D21H19/34 ,  B32B37/153 ,  B32B2037/243 ,  B32B2317/12 ,  D21H11/18 ,  D21H23/50 ,  D21H23/70 ,  D21H27/10 ,  D21H27/32

摘要： The present invention relates to process for the production of a coated substrate comprising cellulosic fibres, the process comprising the steps of: i) providing a first substrate comprising cellulosic fibres and having a dry content of less than 50%; ii) applying a coating composition to the first substrate in an amount of more than 5 g/m2, calculated as dry weight of the coating composition, wherein the coating composition comprises: microfibrillated cellulose (MFC), and optionally a water retention agent selected from carboxymethyl cellulose (CMC), anionic polyacrylamide (A-PAM), sodium polyacrylates, polyacrylic acid derivatives, guar gum, alginate, MFC prepared from carboxymethylated fibers, MFC prepared from oxidized fibers, MFC prepared by CMC-functionalised fibers, and/or combinations thereof; and iii) mechanically dewatering the first substrate. The present process provides an energy efficient coating process which can be performed online.

公开(公告)号：US20150308017A1

公开(公告)日：2015-10-29

申请号：US14441263

申请日：2013-10-30

申请人： Stora Enso Oyj

发明人： Kaj Backfolk ,  Heidi Saxell ,  Isto Heiskanen ,  Lars Axrup ,  Cecilia Land Hensdal ,  Veikko Jokela ,  Esa Saukkonen ,  Ari Kotilainen ,  Henri Kastinen ,  Anna Kauppi

IPC分类号： D01F2/00

CPC分类号： D01F2/00 ,  C08L1/04 ,  D21C9/007 ,  D21C9/06 ,  D21C9/18 ,  D21H11/18 ,  F26B3/36

摘要： A method for drying nanofibrillated polysaccharide to obtain a substantially dry nanofibrillated polysaccharide product, comprising the following steps: (i) providing an aqueous suspension of nanofibrillated polysaccharide; (ii) increasing the solid content of said suspension, thereby forming a high solid content microfibrillated cellulose suspension; and (iii) drying said high solid content microfibrillated cellulose suspension, through a simultaneous heating and mixing operation.

摘要翻译： 一种干燥纳米纤维化多糖以获得基本干燥的纳米纤维化多糖产物的方法，包括以下步骤：（i）提供纳米纤维化多糖的水性悬浮液; （ii）增加所述悬浮液的固体含量，从而形成高固体含量的微纤化纤维素悬浮液; 和（iii）通过同时加热和混合操作来干燥所述高固含量微纤化纤维素悬浮液。