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    PROCESS FOR THE PREPARATION OF A BONDING RESIN
    12.
    发明申请
    PROCESS FOR THE PREPARATION OF A BONDING RESIN 有权

    公开(公告)号：US20230002654A1

    公开(公告)日：2023-01-05

    申请号：US17757258

    申请日：2020-12-16

    Applicant: Stora Enso OYJ

    Inventor： Ashar Zafar ,  Huynh Tram Anh Pham ,  Katarina Hägg ,  Jesper Ekström

    IPC: C09J197/00 ,  C08L97/00 ,  C09J163/00 ,  C08L63/00 ,  B27N1/00 ,  B27N3/00

    Abstract: The present invention relates to a process for preparing a bonding resin, wherein lignin is provided in the form of a solution in ammonia and/or an organic base and mixed with one or more crosslinkers and optionally one or more additives. The bonding resin is useful for example in the manufacture of laminates, mineral wool insulation and wood products such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF), parquet flooring, curved plywood, veneered particleboards, veneered MDF or particle boards. The bonding resin is also useful for example in composites, molding compounds and foundry applications.

    ADHESIVE FORMULATION COMPRISING LIGNIN
    14.
    发明申请
    ADHESIVE FORMULATION COMPRISING LIGNIN 有权

    公开(公告)号：US20210238464A1

    公开(公告)日：2021-08-05

    申请号：US17048715

    申请日：2019-04-16

    Applicant: Stora Enso OYJ

    Inventor： Ben Nasli Bakir ,  Ashar Zafar ,  Jesper Ekström

    IPC: C09J197/00 ,  C09J161/06 ,  C08L97/02 ,  C08H7/00

    Abstract: The present invention relates to an adhesive formulation comprising lignin, suitable for use in the manufacture of for example wood products. The lignin is provided in the form of a solution or dispersion or in dry solid form, such as in the form of a powder. The adhesive formulation also comprises phenol-formaldehyde (PF) resin and/or lignin-phenol-formaldehyde (LPF) resin. The adhesive formulation may also comprise extenders, hardeners, fillers and other additives, to achieve an adhesive formulation useful in the manufacture of for example wood products, such as plywood and laminated veneer lumber (LVL). The adhesive formulation can also be used in the manufacture of laminates and oriented strand boards.

    PROCESS FOR PREPARING A BONDING RESIN
    16.
    发明申请
    PROCESS FOR PREPARING A BONDING RESIN 有权

    公开(公告)号：US20220243105A1

    公开(公告)日：2022-08-04

    申请号：US17622368

    申请日：2020-06-22

    Applicant: Stora Enso OYJ

    Inventor： Ashar Zafar ,  Jesper Ekström

    IPC: C09J171/00 ,  B32B21/14 ,  B32B7/12 ,  B32B21/04 ,  B32B21/13

    Abstract: The present invention relates to a process for preparing a bonding resin, lignin in solid form or in the form of a dispersion in water is mixed with a crosslinker; and optionally one or more additives followed by addition of a basic solution. The bonding resin is useful for example in the manufacture of laminates, mineral wool insulation and wood products such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF), parquet flooring, curved plywood, veneered particleboards, veneered MDF or particle boards, laminates or mineral wool insulation.

    PROCESS FOR PREPARING A BONDING RESIN
    17.
    发明申请
    PROCESS FOR PREPARING A BONDING RESIN 有权

    公开(公告)号：US20210253922A1

    公开(公告)日：2021-08-19

    申请号：US17059590

    申请日：2019-06-28

    Applicant: Stora Enso OYJ

    Inventor： Ben Nasli Bakir ,  Staffan Torssell ,  Lars Hjelm ,  Li Jansson ,  Huynh Tram Anh Pham ,  Ashar Zafar

    IPC: C09J197/00 ,  B27N3/00 ,  B27N3/04 ,  B27N3/02 ,  C08K5/1515

    Abstract: The present invention relates to a process for preparing a bonding resin, wherein lignin is provided in the form of an aqueous solution and mixed with one or more of glycerol diglycidyl ether, polyglycerol diglycidyl ether, polyglycerol polyglycidyl ether, glycerol triglycidyl ether, sorbitol polyglycidyl ether, alkoxylated glycerol polyglycidyl ether, trimethylolpropane triglycidyl ether, trimethylolpropane diglycidyl ether, polyoxypropylene glycol diglycidylether, polyoxypropylene glycol triglycidyl ether, diglycidylether of cyclohexane dimethanol, resorcinol diglycidyl ether, isosorbide diglycidyl ether, pentaerythritol tetraglycidyl ether, ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether having 2-9 ethylene glycol units, propylene glycol diglycidyl ether having 1-5 propylene glycol units, and/or diglycidyl ether of terminal diol having a linear carbon chain of 3-6 carbon atoms; and optionally one or more additives. The bonding resin is useful for example in the manufacture of laminates, mineral wool insulation and wood products such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF), parquet flooring, curved plywood, veneered particleboards, veneered MDF or particle boards.

    PROCESS FOR PREPARING A SOLUTION OF LIGNIN IN AN AQUEOUS MEDIUM
    18.
    发明申请
    PROCESS FOR PREPARING A SOLUTION OF LIGNIN IN AN AQUEOUS MEDIUM 审中-公开

    公开(公告)号：US20200079960A1

    公开(公告)日：2020-03-12

    申请号：US16613738

    申请日：2018-05-22

    Applicant: Stora Enso OYJ

    Inventor： Ashar Zafar ,  Jesper Ekström

    IPC: C08L97/00 ,  C08G8/38 ,  B27N1/02

    Abstract: The present invention relates to a process for lignin dissolution in which partial methylolation of lignin is carried out during the step of preparing a solution of lignin in an aqueous medium comprising alkali. The lignin prepared according to the process of the present invention can be used to manufacture lignin-based phenolic resins, which are particularly useful in the manufacture of laminates.

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