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公开(公告)号：US10138599B2
公开(公告)日：2018-11-27
申请号：US15535456
申请日：2015-12-14
Applicant: STORA ENSO OYJ
Inventor： Christian Aulin , Lars Axrup , Göran Flodberg , Magnus Hillergren , Tom Lindström , Carl-Henrik Ljungqvist , Göran Ström
Abstract: The present invention relates to process for the production of a coated substrate comprising cellulosic fibers, the process comprising the steps of: i) providing a first substrate comprising cellulosic fibers 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-functionalized 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.
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12.发明申请METHOD FOR FORMING A SUBSEQUENTLY DRYING A COMPOSITE COMPRISING A NANOFIBRILLATED POLYSACCHARIDE 有权形成随后干燥包含纳米多糖的复合材料的方法公开(公告)号：US20150299959A1
公开(公告)日：2015-10-22
申请号：US14441268
申请日：2013-11-06
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 method for the production of a composite material comprising nanofibrillated polysaccharide, the method comprising the following steps: (i) providing a liquid suspension of the nanofibrillated polysaccharide; (ii) bringing said liquid suspension in contact with at least one additive, thereby forming a composite material suspension, wherein the composite comprises the nanofibrillated polysaccharide and the at least one additive, (iii) increasing the solid contents of said composite material suspension, thereby forming a high solid contents composite material suspension.
Abstract translation: 一种制备包含纳米纤维化多糖的复合材料的方法，所述方法包括以下步骤：（i）提供纳米纤维化多糖的液体悬浮液; （ii）使所述液体悬浮液与至少一种添加剂接触，从而形成复合材料悬浮液，其中复合材料包含纳米纤维化多糖和至少一种添加剂，（iii）增加所述复合材料悬浮液的固体含量，从而 形成高固体含量的复合材料悬浮液。
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13.发明申请METHOD AND INTERMEDIATE FOR THE PRODUCTION OF HIGHLY REFINED OR MICROFIBRILLATED CELLULOSE 审中-公开用于生产高精制或微晶纤维素的方法和中间体公开(公告)号：US20150218757A1
公开(公告)日：2015-08-06
申请号：US14421708
申请日：2013-08-16
Applicant: STORA ENSO OYJ
Inventor： Isto Heiskanen , Cecelia Land Hensdal , Lars Axrup , Heidi Saxell
CPC classification number: D21H17/74 , C08L1/02 , C08L2205/16 , C12P19/04 , C12P19/14 , D21C5/005 , D21C9/002 , D21C9/005 , D21C9/007 , D21C9/18 , D21H11/18 , D21H17/005 , D21H17/675
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.
Abstract translation: 一种用于生产高度精制或微纤化纤维素（MFC）的方法，包括以下步骤：处理纤维素纤维以去除纤维的主壁的至少主要部分，干燥经处理的纤维，再处理经处理的纤维，以及分解 润湿纤维通过机械手段获得最终产品。 干纤维素浆是作为该方法的中间产物生产的，其平均纤维长度至少为0.4mm，而少于天然未处理纤维的初级壁材料的50％留在中间产品中。 代替运输大量稀释的MFC分散体，本发明使得能够将干燥的中间产物运输到MFC最终用户，MFC最终用户将通过使用标准的分解装置将中间产物转化成最终的MFC来完成该方法。
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公开(公告)号：US09926668B2
公开(公告)日：2018-03-27
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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公开(公告)号：US20170342661A1
公开(公告)日：2017-11-30
申请号：US15535456
申请日：2015-12-14
Applicant: STORA ENSO OYJ
Inventor： Christian Aulin , Lars Axrup , Göran Flodberg , Magnus Hillergren , Tom Lindström , Carl-Henrik Ljungqvist , Göran Ström
CPC classification number: D21H19/34 , B32B37/153 , B32B2037/243 , B32B2317/12 , D21H11/18 , D21H23/50 , D21H23/70 , D21H27/10 , D21H27/32
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20150308017A1
公开(公告)日：2015-10-29
申请号：US14441263
申请日：2013-10-30
Applicant: Stora Enso Oyj
Inventor： Kaj Backfolk , Heidi Saxell , Isto Heiskanen , Lars Axrup , Cecilia Land Hensdal , Veikko Jokela , Esa Saukkonen , Ari Kotilainen , Henri Kastinen , Anna Kauppi
IPC: D01F2/00
CPC classification number: D01F2/00 , C08L1/04 , D21C9/007 , D21C9/06 , D21C9/18 , D21H11/18 , F26B3/36
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US11162222B2
公开(公告)日：2021-11-02
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
IPC: B32B5/06 , B32B23/06 , B32B23/08 , B32B27/32 , B32B27/36 , B32B27/34 , B32B27/08 , B32B27/10 , C08B15/02 , B82Y30/00 , C08L1/02 , C08J5/18 , D21H19/34 , D21H27/10 , D21H11/18 , D21H27/30 , D21H11/20 , B32B23/04 , B32B27/30 , C08J7/048 , C08J7/052
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：US10240288B2
公开(公告)日：2019-03-26
申请号：US14758708
申请日：2013-12-30
Applicant: Stora Enso OYJ
Inventor： Isto Heiskanen , Henri Kastinen , Anna Kauppi , Jukka Kankkunen , Lars Axrup , Cecilia Land Hensdal , Heidi Saxell , Kaj Backfolk
Abstract: The invention relates to methods of producing microfibrillated cellulose (MFC). According to the invention a fibrous pulp suspension is fibrillated mechanically at a consistency of less than 12.5%, dewatered to raise the consistency of the fibrillated suspension to at least 12.5%, and then subjected in the dewatered condition to further fibrillation. Alternatively an initially fibrillated fibrous pulp suspension may be dewatered and fibrillated in the dewatered condition, after which these dewatering and fibrillating steps are repeated one or more times so that pulp consistency is increased for each fibrillation step. The goals of raising the consistency between subsequent fibrillations are energy saving and an increased aspect ratio in MFC. The invention even comprises uses of the MFC product, e.g. as an additive for papermaking furnish or injection molded plastic composites.
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公开(公告)号：US20170320969A1
公开(公告)日：2017-11-09
申请号：US15523177
申请日：2015-10-26
Applicant: STORA ENSO OYJ
Inventor： Lars Axrup , Henri Kastinen
CPC classification number: C08B1/00 , C08B15/00 , C08B15/02 , C08L1/02 , D21C5/005 , D21C9/00 , D21C9/007 , D21H11/18 , D21H11/20 , D21H15/02
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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20.发明授权Method for forming a subsequently drying a composite comprising a nanofibrillated polysaccharide 有权形成随后干燥包含纳米纤维化多糖的复合材料的方法公开(公告)号：US09562328B2
公开(公告)日：2017-02-07
申请号：US14441268
申请日：2013-11-06
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 method for the production of a composite material comprising nanofibrillated polysaccharide, the method comprising the following steps: (i) providing a liquid suspension of the nanofibrillated polysaccharide; (ii) bringing said liquid suspension in contact with at least one additive, thereby forming a composite material suspension, wherein the composite comprises the nanofibrillated polysaccharide and the at least one additive, (iii) increasing the solid contents of said composite material suspension, thereby forming a high solid contents composite material suspension.
Abstract translation: 一种制备包含纳米纤维化多糖的复合材料的方法，所述方法包括以下步骤：（i）提供纳米纤维化多糖的液体悬浮液; （ii）使所述液体悬浮液与至少一种添加剂接触，从而形成复合材料悬浮液，其中复合材料包含纳米纤维化多糖和至少一种添加剂，（iii）增加所述复合材料悬浮液的固体含量，从而 形成高固体含量的复合材料悬浮液。
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