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.

公开(公告)号：US10414105B2

公开(公告)日：2019-09-17

申请号：US15113608

申请日：2015-01-22

Applicant: Stora Enso OYJ

Inventor： Jari Räsänen ,  Outi Kylliäinen ,  Kimmo Nevalainen ,  Ville Ribu ,  Ari Rosling ,  Mohammad Khajeheian ,  Ella Lindström

IPC: B29C65/00 ,  B29C71/04 ,  B32B27/10 ,  B29C35/08 ,  B32B27/20 ,  B32B27/36 ,  D21H25/06 ,  D21H27/10 ,  D21H19/28 ,  D21H19/62 ,  B29C65/02 ,  B29C35/10 ,  B29K67/00 ,  B29L31/00

Abstract: The invention relates to use of polylactide (PLA) as an extruded polymer coating on paper or board intended for the production of containers and packages, which are heated in a stove or microwave oven. According to the invention a polyfunctional cross-linking agent, such as trialkyl isocyanurate (TAIC), is blended with PLA, and the extruded coating layer is subjected to cross-linking electron beam (EB) radiation. PLA may be used as such or blended with another biodegradable polyester such as polybutylene succinate (PBS). EB radiation has been found to improve adhesion of the coating to the paper or board substrate, heat-scalability of the coating, and heat-resistance of the finished containers and packages.

公开(公告)号：US10040273B2

公开(公告)日：2018-08-07

申请号：US15119482

申请日：2015-02-19

Applicant: Stora Enso OYJ

Inventor： Kimmo Nevalainen ,  Jari Räsänen ,  Ville Ribu

IPC: B32B27/32 ,  B32B27/10 ,  B32B37/15 ,  B32B7/12 ,  B29C47/06 ,  B29C47/02 ,  B65D1/26 ,  B65D65/40 ,  B29C47/00 ,  C08L23/06 ,  B29K23/00 ,  B29L9/00 ,  B29L31/00

CPC classification number: B32B27/32 ,  B29C48/0014 ,  B29C48/0021 ,  B29C48/08 ,  B29C48/154 ,  B29C48/21 ,  B29K2023/0625 ,  B29K2023/0633 ,  B29K2023/065 ,  B29K2995/0017 ,  B29L2009/005 ,  B29L2031/7132 ,  B32B7/12 ,  B32B27/10 ,  B32B37/15 ,  B32B2255/12 ,  B32B2255/26 ,  B32B2270/00 ,  B32B2307/31 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2323/043 ,  B32B2323/046 ,  B32B2439/00 ,  B32B2439/40 ,  B65D1/265 ,  B65D65/40 ,  C08L23/06

Abstract: The invention relates to a polymer-coated packaging material, a method of manufacturing the same, and products, such as a disposable drinking cup, made from the material. The packaging material comprises a fibrous base (1) of paper or board and an extruded polymer layer (2) containing a blend of (i) 0 to 25 wt-% of a branched low-density polyethylene (LDPE) with a lower melt viscosity and (ii) 75 to 90 wt-% of a linear low-density polyethylene (LLDPE) with a higher melt viscosity. The packaging material of the invention comprises multilayer coatings, e.g. an adhesive innermost and a heat-sealable outermost layer (2, 4) of said blend and a vapor barrier middle layer (3) of at most 90 wt-% of high density polyethylene (HDPE). The layers (2, 3, 4) are brought and adhered to the fibrous base (1) by coextrusion. To maximize renewability of the materials HDPE and LLDPE as used for the structure are of biologic origin.

公开(公告)号：US20170008264A1

公开(公告)日：2017-01-12

申请号：US15119482

申请日：2015-02-19

Applicant: STORA ENSO OYJ

Inventor： Kimmo Nevalainen ,  Jari Räsänen ,  Ville Ribu

IPC: B32B27/32 ,  B29C47/06 ,  B65D1/26 ,  B32B27/10 ,  B32B37/15 ,  B65D65/40 ,  B29C47/02 ,  B32B7/12

CPC classification number: B32B27/32 ,  B29C47/0021 ,  B29C47/0047 ,  B29C47/0064 ,  B29C47/025 ,  B29C47/065 ,  B29K2023/0625 ,  B29K2023/0633 ,  B29K2023/065 ,  B29K2995/0017 ,  B29L2009/005 ,  B29L2031/7132 ,  B32B7/12 ,  B32B27/10 ,  B32B37/15 ,  B32B2255/12 ,  B32B2255/26 ,  B32B2270/00 ,  B32B2307/31 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2323/043 ,  B32B2323/046 ,  B32B2439/00 ,  B32B2439/40 ,  B65D1/265 ,  B65D65/40 ,  C08L23/06

Abstract: The invention relates to a polymer-coated packaging material, a method of manufacturing the same, and products, such as a disposable drinking cup, made from the material. The packaging material comprises a fibrous base (1) of paper or board and an extruded polymer layer (2) containing a blend of (i) 0 to 25 wt-% of a branched low-density polyethylene (LDPE)with a lower melt viscosity and (ii) 75 to 90 wt-% of a linear low-density polyethylene (LLDPE) with a higher melt viscosity. The packaging material of the invention comprises multilayer coatings, e.g. an adhesive innermost and a heat-sealable outermost layer (2, 4) of said blend and a vapour barrier middle layer (3) of at most 90 wt-% of high density polyethylene (HDPE). The layers (2, 3, 4) are brought and adhered to the fibrous base (1) by coextrusion. To maximize renewability of the materials HDPE and LLDPE as used for the structure are of biologic origin.

Abstract translation: 本发明涉及一种聚合物涂覆的包装材料，其制造方法以及由该材料制成的产品，例如一次性饮用杯。 包装材料包括纸或纸板的纤维基材（1）和挤出的聚合物层（2），其包含（i）0至25重量％的具有较低熔体粘度的支化低密度聚乙烯（LDPE）的共混物 和（ii）75至90重量％的具有较高熔体粘度的线性低密度聚乙烯（LLDPE）。 本发明的包装材料包括多层涂层，例如 所述共混物的最内层和最热可密封的最外层（2,4）和至少90重量％的高密度聚乙烯（HDPE）的阻气中间层（3）。 层（2,3,4）通过共挤出而附着在纤维基体（1）上。 为了最大化材料的可再生性，用于结构的HDPE和LLDPE具有生物来源。

公开(公告)号：US20220002948A1

公开(公告)日：2022-01-06

申请号：US17280407

申请日：2019-10-01

Applicant: Stora Enso OYJ

Inventor： Ville Ribu ,  Kimmo Nevalainen ,  Juuso Toriseva ,  Esa Suokas ,  Jurkka Kuusipalo

IPC: D21H19/82 ,  D21H19/22 ,  D21H23/46 ,  B32B27/08 ,  B32B27/10 ,  B32B27/32 ,  B32B1/02 ,  B32B7/02 ,  B32B37/15 ,  B65D3/06 ,  B65D65/42

Abstract: The present invention relates to a paper or paperboard comprising a polymeric coating, said polymeric coating comprising: a first coating layer attached to the paper or paperboard surface, said first coating layer comprising a blend of: a high density polyethylene (HDPE), medium density polyethylene (MDPE) or linear low density polyethylene (LLDPE), or a mixture thereof, and a low density polyethylene (LDPE); and a second coating layer attached to the first coating layer, said second coating layer consisting essentially of a low density polyethylene (LDPE); wherein the first and second coating layers have a combined grammage of less than 12 g/m2. The present invention relates to a method for manufacturing a polyethylene (PE) coated paper or paperboard substrate.

公开(公告)号：US11180310B2

公开(公告)日：2021-11-23

申请号：US15774231

申请日：2016-11-08

Applicant: Stora Enso OYJ

Inventor： Simo Siitonen ,  Kimmo Nevalainen

IPC: D21H27/30 ,  D21H17/66 ,  D21H27/10 ,  D21H11/18 ,  D21H17/68 ,  D21H21/52 ,  D21H17/22 ,  D21H17/24 ,  D21H17/33 ,  D21H17/67 ,  D21H21/22 ,  B65D85/10 ,  B65D81/24 ,  B65D81/18 ,  B65D81/26 ,  D21J1/00

Abstract: An active moisture control material comprising a fiber based material and at least one active additive, wherein said active additive is adapted to control moisture transfer in the active moisture control material, and wherein said moisture control material is produced in a paper or board making process, wherein the active additive is incorporated into said active moisture control material.

公开(公告)号：US20200171796A1

公开(公告)日：2020-06-04

申请号：US16500033

申请日：2018-03-28

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen ,  Jukka Kankkunen ,  Ville Ribu ,  Kimmo Nevalainen

IPC: B32B15/085 ,  B65D65/40 ,  B65D65/42 ,  B32B15/20 ,  B32B27/10 ,  D21H27/10 ,  D21H19/04 ,  D21H19/22 ,  D21H19/84 ,  D21H19/82 ,  D21H11/18 ,  C08J5/18

Abstract: The present invention is directed to a packaging material comprising a layer of microfibrillated cellulose (MFC) and an aluminum layer having a thickness of 0.1-20 μm, wherein the layer comprising MFC and/or the aluminum layer has been laminated or extrusion coated on at least one side with a thermoplastic polymer and wherein the amount of aluminum is sufficient to make the packaging material heat sealable by induction. The MFC layer contains at least 60% by weight of microfibrillated cellulose.

公开(公告)号：US20170305097A1

公开(公告)日：2017-10-26

申请号：US15518178

申请日：2015-10-08

Applicant: Stora Enso OYJ

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

IPC: B31F1/00 ,  B65D1/34 ,  B65D1/26

CPC classification number: B31F1/0077 ,  B31B50/25 ,  B31B50/592 ,  B31B70/00 ,  B31B2100/0024 ,  B31B2160/10 ,  B65D1/26 ,  B65D1/34

Abstract: The invention relates to a method and an apparatus for deep-drawing a tray (1) from a blank of sheet material (2). The blank is provided with score lines, which determine the location of wrinkles formed in the process. The apparatus comprises a female moulding tool (3), which comprises a cavity (7) for forming the tray bot-tom outwardly, a male moulding tool (4), which comprises a plunger (11) for form-ing the tray bottom inwardly, the plunger being movable with respect to the cavity for forming the tray, and clamps (6, 15) with an interface for holding the sheet ma-terial and forming a tray rim flange. According to the invention by laterally distanc-ing at least one of the moulding tools (3, 4) from the sheet material leeway is pro-vided for free forming so that wrinkling of the tray side walls is achieved in a con-trolled manner. Spacer plates (13) may be positioned behind the plunger (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) therebelow, or screw means may be provided for adjusting the distance of the bottom of the cavi-ty from the clamp interface and thereby varying the depth of the tray.

公开(公告)号：US20250026110A1

公开(公告)日：2025-01-23

申请号：US18713880

申请日：2022-11-28

Applicant: Stora Enso OYJ

Inventor： Kimmo Nevalainen ,  Inkeri Perttu-Ukonaho ,  Esa Suikkanen ,  Minna Vuorimaa ,  Timo Lankinen ,  Anna Veijalainen

IPC: B32B21/08 ,  B29C48/00 ,  B29C48/153 ,  B29C48/21 ,  B29K23/00 ,  B29L31/00 ,  B32B37/15

Abstract: The present invention relates to a packaging material comprising a paperboard substrate comprising a first and a second side, an extrusion coated polymer layer attached to the first side, which polymer layer comprises polyethylene (PE) with a melt index in the range of 7-10 g/10 min, as measured using ASTM D1238, wherein the polymer layer has a grammage of less than 12 gsm, preferably less than 10 gsm. The invention further relates to a method of producing such a packaging material and a cup being made from or comprising said packaging material.

公开(公告)号：US12000091B2

公开(公告)日：2024-06-04

申请号：US17282073

申请日：2019-10-01

Applicant: Stora Enso OYJ

Inventor： Ville Ribu ,  Kimmo Nevalainen

IPC: D21H19/28 ,  C09D167/02

CPC classification number: D21H19/28 ,  C09D167/02

Abstract: The present invention relates to paper or paperboard comprising at least one coating layer formed by extrusion coating of a PET (polyethylene terephthalate) resin, characterized in that the PET resin comprises at least 50% by weight of a PET copolymer having an intrinsic viscosity of less than 0.7 dl/g, preferably less than 0.65 dl/g, as determined according to ISO 1628.