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    METHOD AND INTERMEDIATE FOR THE PRODUCTION OF HIGHLY REFINED OR MICROFIBRILLATED CELLULOSE
    3.
    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：WO2014029909A1

    公开(公告)日：2014-02-27

    申请号：PCT/FI2013/050805

    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.

    Abstract translation: 本发明涉及一种生产高度精制或微纤维化纤维素（MFC）的方法，包括以下步骤：处理纤维素纤维以除去纤维的主壁的至少主要部分，干燥经处理的纤维，将经处理的纤维 纤维，并通过机械手段使润湿的纤维分解以获得最终产品。 本发明还涉及作为该方法的中间产物的干纤维素浆，其平均纤维长度至少为0.4mm，而天然未处理纤维的初级壁材料的少于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MFC来完成该方法。

    METHOD FOR THE PREPARATION OF CELLULOSE ETHERS WITH A HIGH SOLIDS PROCESS, PRODUCT OBTAINED AND USES OF THE PRODUCT
    4.
    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：WO2013150475A1

    公开(公告)日：2013-10-10

    申请号：PCT/IB2013/052691

    申请日：2013-04-04

    Applicant: STORA ENSO OYJ ,  SAXELL, Heidi ,  HEISKANEN, Isto ,  AXRUP, Lars ,  LAND HENSDAL, Cecilia ,  JOKELA, Veikko

    Inventor： SAXELL, Heidi ,  HEISKANEN, Isto ,  AXRUP, Lars ,  LAND HENSDAL, 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/或洗涤介质的高固体分离过程中生产纤维素醚的方法。 在本发明的方法中，通过使用高固体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，所以本发明的方法能够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。

    A METHOD OF PRODUCING MICROFIBRILLATED CELLULOSE
    5.
    发明申请
    A METHOD OF PRODUCING MICROFIBRILLATED CELLULOSE 审中-公开
    一种生产微晶纤维素的方法

    公开(公告)号：WO2014106684A1

    公开(公告)日：2014-07-10

    申请号：PCT/FI2013/051213

    申请日：2013-12-30

    Applicant: STORA ENSO OYJ

    Inventor： HEISKANEN, Isto ,  KASTINEN, Henri ,  KAUPPI, Anna ,  KANKKUNEN, Jukka ,  AXRUP, Lars ,  LAND HENSDAL, Cecilia ,  SAXELL, Heidi ,  BACKFOLK, Kaj

    IPC: C08B15/08 ,  C08L1/04 ,  D21H11/18 ,  D21D1/20 ,  D21D1/30

    CPC classification number: D21H17/005 ,  C08B15/08 ,  C08L1/04 ,  D21C9/007 ,  D21D1/20 ,  D21H11/04 ,  D21H11/18

    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.

    Abstract translation: 本发明涉及微纤化纤维素（MFC）的制造方法。 根据本发明，纤维纸浆悬浮液以小于12.5％的稠度机械原纤化，脱水以将原纤化悬浮液的稠度提高至至少12.5％，然后在脱水条件下进一步原纤化。 或者，最初原纤化的纤维纸浆悬浮液可以在脱水条件下脱水和原纤化，之后将这些脱水和原纤化步骤重复一次或多次，以使每个原纤化步骤的纸浆稠度增加。 提高后续原纤化之间的一致性的目标是在MFC中节能和增加的纵横比。 本发明甚至包括MFC产品的用途，例如， 作为造纸配料或注塑塑料复合材料的添加剂。

    COMPOSITION, FILM OR COATING COMPRISING MICROFIBRILLATED CELLULOSE AND EXTRACTIVE FROM WOOD BARK OR CORK WOOD
    7.
    发明申请
    COMPOSITION, FILM OR COATING COMPRISING MICROFIBRILLATED CELLULOSE AND EXTRACTIVE FROM WOOD BARK OR CORK WOOD 审中-公开

    公开(公告)号：WO2021053500A1

    公开(公告)日：2021-03-25

    申请号：PCT/IB2020/058547

    申请日：2020-09-15

    Applicant: STORA ENSO OYJ

    Inventor： LAND HENSDAL, Cecilia ,  SOUDHAM, Venkata Prabhakar ,  BACKFOLK, Kaj

    IPC: D21H11/18 ,  C08J5/18 ,  C08L1/02 ,  B32B27/10 ,  C09D101/00 ,  C09D197/00

    Abstract: The present invention is directed to a film or coating comprising a fiber material, wherein at least 60% by weight of said fiber material is microfibrillated cellulose, said film or coating also comprising at least 1% by weight of extractives from wood bark or cork wood. The invention is also directed to products, such as packaging materials, using or incorporating said film or coating. Such packaging materials are for example laminates or multi-layer structures. The films or coatings according to the present invention having advantageous barrier properties and are therefore particularly suitable for sensitive objects that need to be packaged in a controlled or modified atmosphere. The present invention is also directed to a composition comprising a fiber material, wherein at least 60% by weight of said fiber material is microfibrillated cellulose, said composition also comprising at least 1 % by weight of extractives from wood bark or cork wood. The composition is useful for example in the preparation of the film or coating.

    A METHOD FOR IMPROVING ADHESION DURING PRODUCTION OF FILM
    8.
    发明申请
    A METHOD FOR IMPROVING ADHESION DURING PRODUCTION OF FILM 审中-公开

    公开(公告)号：WO2020058803A1

    公开(公告)日：2020-03-26

    申请号：PCT/IB2019/057603

    申请日：2019-09-10

    Applicant: STORA ENSO OYJ

    Inventor： LAND HENSDAL, Cecilia ,  KNÖÖS, Isabel

    IPC: C08B15/02 ,  C08B15/10 ,  C08J5/18 ,  C08L1/02 ,  C09D101/00 ,  D21H11/18 ,  B82Y30/00

    Abstract: The present invention relates to a method for manufacturing at least one layer of a film characterized by that 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, in which mixture less than 5% of the anhydroglucose units (AGU) of the total cellulose present therein comprise a dialdehyde, 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 of film.

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