公开(公告)号：EP2917403B1

公开(公告)日：2018-07-04

申请号：EP13853497.9

申请日：2013-10-30

Applicant: Stora Enso Oyj

Inventor： BACKFOLK, Kaj ,  SAXELL, Heidi ,  HEISKANEN, Isto ,  AXRUP, Lars ,  LAND HENSDAL, Cecilia ,  JOKELA, Veikko ,  SAUKKONEN, Esa ,  KOTILAINEN, Ari ,  KASTINEN, Henri ,  KAUPPI, Anna

IPC: D21H11/18 ,  D21C9/06 ,  D21C9/18 ,  C08L1/04 ,  F26B3/36

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.

公开(公告)号：EP2885458B1

公开(公告)日：2018-04-25

申请号：EP13830431.6

申请日：2013-08-16

Applicant: Stora Enso Oyj

Inventor： HEISKANEN, Isto ,  LAND HENSDAL, Cecilia ,  AXRUP, Lars ,  SAXELL, Heidi

IPC: D21H11/18 ,  D21B1/38 ,  D21C9/00 ,  C08L1/02 ,  D21B1/34 ,  D21C9/18

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.

公开(公告)号：EP2834275A1

公开(公告)日：2015-02-11

申请号：EP13772103.1

申请日：2013-04-04

Applicant: Stora Enso Oyj

Inventor： SAXELL, Heidi ,  HEISKANEN, Isto ,  AXRUP, Lars ,  LAND HENDSDAL, Cecilia ,  JOKELA, Veikko

IPC: C08B1/08 ,  C08B11/12

CPC classification number: C08B11/12 ,  C08B1/08

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: 本发明提供了用于生产高固体处理纤维素醚的方法，基本上没有使用有机溶剂作为反应和/或洗涤介质。 在本发明的方法中的第一碱化步骤通过使用高固体含量的纤维素纸浆和固体氢氧化钠开展。 这是通过在醚化步骤，其中固体含量优选进一步增大，并且使用固体反应物的醚化是优选的遵循。 由于没有使用有机溶剂作为反应介质发明了方法能够生产纤维素醚的直接从在能量和投资成本节约显著从未干燥纸浆。 该方法是爱特别适合于生产羧甲基纤维素钠盐（CMC）的低取代度（DS <0.3）。 使用所得的无或低水溶性的羧甲基化的纤维素纤维的是适用于例如制造微纤化纤维素。

公开(公告)号：EP2834275B1

公开(公告)日：2018-05-30

申请号：EP13772103.1

申请日：2013-04-04

Applicant: Stora Enso Oyj

Inventor： SAXELL, Heidi ,  HEISKANEN, Isto ,  AXRUP, Lars ,  LAND HENDSDAL, Cecilia ,  JOKELA, Veikko

IPC: C08B1/08 ,  C08B11/12

CPC classification number: C08B11/12 ,  C08B1/08

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

公开(公告)号：EP3212841A1

公开(公告)日：2017-09-06

申请号：EP15855915.3

申请日：2015-10-26

Applicant: Stora Enso OYJ

Inventor： AXRUP, Lars ,  KASTINEN, Henri

IPC: D21C9/00 ,  C08B1/00 ,  C08B15/00 ,  C12P1/00 ,  D21H11/18 ,  D21H11/20 ,  C12P19/00 ,  D21H15/02

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.

Abstract translation: 本发明涉及制造微纤化多糖，优选微纤化纤维素的方法。 本发明还涉及可通过微纤化纤维素的方法和用途获得的微纤化纤维素。 制造微纤化纤维素的方法包括以下步骤：a）提供含半纤维素的纸浆，b）提供木材降解酶c）混合纸浆和酶d）将混合物保持在基本圆柱形几何形状的连续流动系统中（例如在 e）将混合物输送到一个或多个混合区以使混合物再循环和均质化，以及f）在再循环过程中收获具有相对窄尺寸分布的微纤化纤维素。

公开(公告)号：EP2885458A1

公开(公告)日：2015-06-24

申请号：EP13830431.6

申请日：2013-08-16

Applicant: Stora Enso Oyj

Inventor： HEISKANEN, Isto ,  LAND HENSDAL, Cecilia ,  AXRUP, Lars ,  SAXELL, Heidi

IPC: D21H11/18 ,  D21B1/38 ,  D21C9/00 ,  C08L1/02 ,  D21B1/34 ,  D21C9/18

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: The invention concerns a method for the production of highly refined or micro- fibrillated 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 me- chanical means to obtain the final product. The invention further concerns dried cellulosic pulp as an intermediate product of the method, having an aver- age 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.

公开(公告)号：EP2619367A1

公开(公告)日：2013-07-31

申请号：EP11827055.2

申请日：2011-09-19

Applicant: Stora Enso Oyj

Inventor： AXRUP, Lars ,  HEISKANEN, Isto ,  BACKFOLK, Kaj ,  RIIKONEN, Mika

IPC: D21H11/18 ,  D21C9/00 ,  D21H17/20 ,  D21H21/00

CPC classification number: D21H17/24 ,  D21H11/18 ,  D21H11/20 ,  D21H17/25 ,  D21H17/29 ,  D21H17/42 ,  D21H17/44 ,  D21H21/18

Abstract: The present invention relates to a paper or paperboard product comprising a furnish wherein said furnish comprises a cationic polymer in an amount of above 1,5% by weight, an anionic polymer and microfibrillated cellulose. The invention further relates to a process for the production of said product.

公开(公告)号：EP2516156A1

公开(公告)日：2012-10-31

申请号：EP10839891.8

申请日：2010-12-20

Applicant: Stora Enso Oyj

Inventor： AXRUP, Lars ,  HEISKANEN, Isto ,  BACKFOLK, Kaj

IPC: B32B29/02 ,  B65D65/40 ,  D21H11/18 ,  D21H19/34 ,  D21H27/10

CPC classification number: D21H11/18 ,  B32B27/10 ,  B32B27/32 ,  B32B29/00 ,  B65D65/42 ,  D21H19/34 ,  D21H27/10 ,  Y10T156/10 ,  Y10T428/253

Abstract: The present invention relates to a paper or paperboard substrate having barrier properties which substrate comprises a first fiber based layer, a second layer comprising micro-fibrillated cellulose, a third layer comprising a heat sealable polymer, and a fourth layer comprising aluminum, aluminum oxide or titanium dioxide. The invention further relates to a process for the production of said substrate and a package formed of said substrate.

公开(公告)号：EP2507432A1

公开(公告)日：2012-10-10

申请号：EP10834832.7

申请日：2010-11-30

Applicant: Stora Enso Oyj

Inventor： AXRUP, Lars ,  HEISKANEN, Isto ,  RIIKONEN, Mika

IPC: D21H17/25 ,  D21H11/18 ,  D21H11/20 ,  D21H17/28 ,  D21H21/18 ,  D21H21/50

CPC classification number: D21H17/28 ,  D21H11/18 ,  D21H21/18 ,  D21H27/30

Abstract: The present invention relates to a process for producing a paper or paperboard product which process comprises the steps of, providing a furnish comprising fibers, adding starch to the furnish, adding microfibrillated cellulose to the furnish, conducting the furnish to a wire in order to form a web, wherein the starch and microfibrillated cellulose is added separately to the furnish.

公开(公告)号：EP2496765A1

公开(公告)日：2012-09-12

申请号：EP10828620.4

申请日：2010-11-02

Applicant: Stora Enso Oyj

Inventor： HEISKANEN, Isto ,  BACKFOLK, Kaj ,  AXRUP, Lars

IPC: D21H19/34 ,  C09D101/02 ,  C08L1/02

CPC classification number: C09D101/02 ,  C08L2205/16 ,  D21H11/18 ,  D21H19/10 ,  D21H19/12 ,  D21H19/34 ,  Y10T428/1362 ,  Y10T428/249921 ,  C08L27/06 ,  C08L29/04 ,  C08L29/06 ,  C08L33/08 ,  C08L25/06 ,  C08L23/20 ,  C08L33/20 ,  C08L33/10 ,  C08L1/10 ,  C08L3/08 ,  C08L31/04 ,  C08L97/00 ,  C08L5/00

Abstract: The present invention relates to a coated fiber based substrate comprising a dispersion coating wherein said dispersion coating comprises microfibrillated cellulose and colloidal particles of a polymer. The invention further relates to a package formed from said substrate, a dispersion coating and process for the production of mentioned substrate.