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    A PROCESS FOR PRODUCING A PACKAGING MATERIAL
    303.
    发明公开
    A PROCESS FOR PRODUCING A PACKAGING MATERIAL 审中-公开

    公开(公告)号：US20230219732A1

    公开(公告)日：2023-07-13

    申请号：US17999062

    申请日：2021-05-18

    Applicant: Stora Enso OYJ

    Inventor： Chris Bonnerup ,  Magnus Ekberg ,  Kaj Backfolk

    IPC: B65D65/42 ,  D21H19/60 ,  D21H19/22 ,  D21H25/06

    CPC classification number: B65D65/42 ,  D21H19/60 ,  D21H19/22 ,  D21H25/06

    Abstract: The invention discloses a method for producing a packaging material and a packaging material suitable for packaging of food and/or liquid. In the method of the invention a first barrier layer, and an optional second barrier layer, is applied on a first side of a paperboard web. The thereby formed barrier coated web is at least partly dried in a first drying step, whereupon an extruded layer is applied onto the partly dried barrier coated web in a second coating step. In accordance with the invention, the first and second coating steps are applied integrated within the same coating line. The application of a first barrier layer and an extrusion coated layer in the same coating line in accordance with the invention has shown to give rise to a packaging material with remarkably good barrier properties, especially gas-, liquid and/or grease barrier properties, for the packaging of food and/or liquid.

    MULTILAYER PREFORM AND CONTAINER
    304.
    发明公开
    MULTILAYER PREFORM AND CONTAINER 审中-公开

    公开(公告)号：US20230166881A1

    公开(公告)日：2023-06-01

    申请号：US17996938

    申请日：2021-05-10

    Applicant: Stora Enso OYJ

    Inventor： Cor Jansen

    IPC: B65D1/02 ,  B29C49/22 ,  B32B1/02 ,  B32B27/08 ,  B32B27/36

    CPC classification number: B65D1/0215 ,  B29C49/22 ,  B32B1/02 ,  B32B27/08 ,  B32B27/36 ,  B29C45/164

    Abstract: The present invention relates to a multilayer container preform and a multilayer container, said preform or container comprising a base, a body and a neck finish, said base and body comprising an outer layer defining an exterior surface, an inner layer defining an interior surface and interior space, and an intermediate layer disposed between the outer layer and the inner layer, said outer layer and said inner layer comprising a primary material selected from the group consisting of a 2,5-furandicarboxylate polyester or co-polyester or a blend thereof, and said intermediate layer comprising a secondary material different from the primary material, but compatible with the primary material. The invention relates to methods of producing such a multilayer container preform and multilayer container

    Method and apparatus for deep-drawing a tray from sheet material
    308.
    发明授权
    Method and apparatus for deep-drawing a tray from sheet material 有权

    公开(公告)号：US11548257B2

    公开(公告)日：2023-01-10

    申请号：US15034365

    申请日：2014-10-17

    Applicant: Stora Enso OYJ

    Inventor： Jari Räsänen ,  Henry Lindell ,  Kimmo Nevalainen ,  Panu Tanninen ,  Sami Matthews ,  Mari Hiltunen ,  Outi Kylliainen

    IPC: B29C51/30 ,  B31F1/00 ,  B29C51/08 ,  B29C51/14 ,  B31B50/59 ,  B31B110/20 ,  B29K105/00 ,  B29L9/00 ,  B29L31/00

    Abstract: The invention relates to a method and an apparatus for deep-drawing a tray (1) from fiber-based sheet material (2), such as polymer coated board. The apparatus comprises a female moulding tool (3), which comprises a cavity (7) for forming the tray bottom outwardly, a male moulding tool (4), which comprises a plunger plate (11) for forming the tray bottom inwardly, the plunger plate being movable with respect to the cavity for forming the tray, and clamps (6, 15) with an interface for holding the sheet material and forming a tray rim flange. According to the invention by laterally distancing at least one of the moulding tools (3, 4) from the sheet material leeway is provided for free forming of the tray side walls while wrinkling or tearing of the same is avoided. Spacer plates (13) may be positioned behind the plunger plate (11), to adjust its position in relation to the cavity (7) of the female moulding tool (3). The cavity may have a separate bottom plate (8) and spacer plates (9) there below, or screw means may be provided for adjusting the distance of the bottom of the cavity from the clamp interface and thereby varying the depth of the tray.

    METHOD FOR DETERMINING FILM THICKNESS, METHOD FOR PRODUCING A FILM AND DEVICE FOR PRODUCING A FILM
    309.
    发明申请
    METHOD FOR DETERMINING FILM THICKNESS, METHOD FOR PRODUCING A FILM AND DEVICE FOR PRODUCING A FILM 有权

    公开(公告)号：US20230003509A1

    公开(公告)日：2023-01-05

    申请号：US17757253

    申请日：2020-12-18

    Applicant: Stora Enso OYJ

    Inventor： Ari Jäsberg ,  Riku Pihko ,  Otto Nylén

    IPC: G01B11/06 ,  G01N21/84 ,  G01B11/02 ,  D21F1/80 ,  C08J5/18 ,  C08L1/02 ,  D21H11/18

    Abstract: The present document discloses a method of determining thickness of a wet film, in particular of microfibrillated cellulose. The method comprises conveying said film (20) in a wet state on a conveyor (10) having a conveyor width, the wet film having a film width which is less than the conveyor width, providing a laser projection (1511) across a film edge, acquiring a series of images, each depicting an area of the conveyor, wherein the laser projection, a portion of the film and a portion of an exposed conveyor surface are visible, and using at least some of said images to determine at least one of a film thickness and a film thickness distribution across the film width. The document also discloses a method of forming a film, in particular a microfibrillated cellulose film, and a device for producing such film.

    PROCESS FOR THE PREPARATION OF A BONDING RESIN
    310.
    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.

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