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    A method for improving adhesion during production of film
    11.
    发明专利
    A method for improving adhesion during production of film 未知

    公开(公告)号：SE542944C2

    公开(公告)日：2020-09-22

    申请号：SE1851113

    申请日：2018-09-19

    Applicant: STORA ENSO OYJ

    Inventor： LAND HENSDAL CECILIA ,  KNÖÖS ISABEL

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

    Abstract: The present invention relates to a 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.

    Composition, film and coating comprising microfibrillated cellulose and extract from wood bark or cork wood
    13.
    发明专利
    Composition, film and coating comprising microfibrillated cellulose and extract from wood bark or cork wood 未知

    公开(公告)号：SE543639C2

    公开(公告)日：2021-05-11

    申请号：SE1951041

    申请日：2019-09-16

    Applicant: STORA ENSO OYJ

    Inventor： LAND HENSDAL CECILIA ,  BACKFOLK KAJ ,  SOUDHAM VENKATA PRABHAKAR

    IPC: D21H11/18 ,  B32B27/10 ,  C08J5/18 ,  C08L1/02 ,  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 multilayer 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.

    Composition, film and coating comprising microfibrillated cellulose and extract from wood bark or cork wood
    14.
    发明专利
    Composition, film and coating comprising microfibrillated cellulose and extract from wood bark or cork wood 未知

    公开(公告)号：SE1951041A1

    公开(公告)日：2021-03-17

    申请号：SE1951041

    申请日：2019-09-16

    Applicant: STORA ENSO OYJ

    Inventor： LAND HENSDAL CECILIA ,  BACKFOLK KAJ ,  SOUDHAM VENKATA PRABHAKAR

    IPC: D21H11/18 ,  B32B27/10 ,  C08J5/18 ,  C08L1/02 ,  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 multilayer 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.

    Método de produção de celulose microfibrilada
    17.
    发明专利
    Método de produção de celulose microfibrilada 未知

    公开(公告)号：BR112015016087B1

    公开(公告)日：2021-09-14

    申请号：BR112015016087

    申请日：2013-12-30

    Applicant: STORA ENSO OYJ

    Inventor： LARS AXRUP ,  KAJ BACKFOLK ,  ISTO HEISKANEN ,  JUKKA KANKKUNEN ,  HENRI KASTINEN ,  KAUPPI ANNA ,  LAND HENSDAL CECILIA ,  HEIDI SAXELL

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

    Abstract: método de produção de celulose microfibrilada. a presente invenção está correlacionada a métodos de produção de celulose microfibrilada (mfc). de acordo com a invenção uma suspensão de polpa fibrosa é mecanicamente fibrilada, com uma consistência de 12,5%, desidratada, para elevar a consistência da suspensão fibrilada para pelo menos 12,5%, e depois submetida na condição desidratada a uma adicional fibrilação. alternativamente, uma suspensão de polpa fibrosa inicialmente fibrilada pode ser desidratada e fibrilada na condição desidratada, após o que essas etapas de desidratação e fibrilação são repetidas uma ou mais vezes, de modo que a consistência da polpa é aumentada em cada etapa de fibrilação. os objetivos de elevar a consistência entre subsequentes etapas de fibrilação estão correlacionados à economia de energia e um aumento de alongamento na mfc. a invenção compreende ainda o uso de produtos de mfc, por exemplo, como um aditivo para fornecimento para fabricação de papel ou aditivo para materiais compósitos de plástico moldado por injeção.

    METHOD FOR THE PREPARATION OF CELLULOSE ETHERS WITH A HIGH SOLIDS PROCESS, PRODUCT OBTAINED AND USES OF THE PRODUCT
    18.
    发明专利
    METHOD FOR THE PREPARATION OF CELLULOSE ETHERS WITH A HIGH SOLIDS PROCESS, PRODUCT OBTAINED AND USES OF THE PRODUCT 未知

    公开(公告)号：CA2869287C

    公开(公告)日：2020-08-04

    申请号：CA2869287

    申请日：2013-04-04

    Applicant: STORA ENSO OYJ

    Inventor： SAXELL HEIDI ,  HEISKANEN ISTO ,  AXRUP LARS ,  LAND HENSDAL CECILIA ,  JOKELA VEIKKO

    IPC: C08B1/08 ,  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

    A method for improving adhesion during production of film
    19.
    发明专利
    A method for improving adhesion during production of film 未知

    公开(公告)号：SE1851113A1

    公开(公告)日：2020-03-20

    申请号：SE1851113

    申请日：2018-09-19

    Applicant: STORA ENSO OYJ

    Inventor： LAND HENSDAL CECILIA ,  KNÖÖS ISABEL

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

    Abstract: The present invention relates to a 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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