公开(公告)号：US20210171259A1

公开(公告)日：2021-06-10

申请号：US16762681

申请日：2018-11-08

Applicant: Stora Enso OYJ

Inventor： Ville Ribu ,  Paula Hirsilä ,  Kaj Backfolk

IPC: B65D65/40 ,  C08L23/06 ,  B32B27/32 ,  B32B27/34 ,  B32B27/30 ,  B32B27/08 ,  B32B27/10

Abstract: The present invention is directed to a packaging material, more specifically a packaging material having gas and/or moisture barrier properties, wherein the material comprises a barrier material comprising a layer comprising at least 50% of a zinc ionomer, a layer of polyethylene and a layer that forms a gas barrier. The invention is also directed to packaging products using said barrier material. Such products are in particular packages suitable for cosmetics and personal care products.

公开(公告)号：US20200079004A1

公开(公告)日：2020-03-12

申请号：US16469805

申请日：2017-12-14

Applicant: Stora Enso OYJ

Inventor： Jari Räsänen ,  Ville Ribu ,  Kimmo Nevalainen ,  Nina Miikki ,  Mari Hiltunen ,  Outi Kylliäinen ,  Mika Kainusalmi ,  Panu Tanninen

IPC: B29C59/04 ,  B31F1/07 ,  B29C48/08 ,  B29C59/02

Abstract: The present invention is in the technical field of packages, specifically surfaces of materials used for packages, and the manufacture thereof. According to the present invention, a micropattern is created on at least surface of a substrate, to obtain a material suitable for manufacturing packages.

公开(公告)号：US20190276619A1

公开(公告)日：2019-09-12

申请号：US16345994

申请日：2017-10-31

Applicant: Stora Enso OYJ

Inventor： Esa Saukkonen ,  Isto Heiskanen ,  Kaj Backfolk ,  Ville Ribu

IPC: C08J5/18 ,  D21H11/18 ,  D21H25/04

Abstract: A method of forming a film comprising nanocellulose having an Oxygen Transmission Rate (OTR) value in the range of 0.1 to 300 cc/m2/24 h at 38° C. and 85% relative humidity (RH), and having a basis weight in the range of in the range of 0.1 to 45 g/m2 wherein the method comprises the steps of; providing a suspension comprising nanocellulose, forming at least one layer of a web or a film from said suspension; drying said formed web or film to a dry content of at least 65 weight-%, wherein said method further comprises the steps of; treating at least one side of said dewatered and dried web or film with ultra violet (UV) or electron beam (EB) irradiation; and wherein at least one cooling step is provided in connection with or after the UV or EB treatment step.

公开(公告)号：US10167594B2

公开(公告)日：2019-01-01

申请号：US14438139

申请日：2013-10-28

Applicant: STORA ENSO OYJ

Inventor： Kimmo Nevalainen ,  Ville Ribu

IPC: D21J1/08 ,  D21H23/22 ,  B05D1/26 ,  B05D7/00 ,  B32B27/10 ,  B32B27/36 ,  D21H27/10 ,  D21H19/20 ,  D21H19/28 ,  D21H19/82 ,  B32B37/15 ,  B65D65/46 ,  B32B27/08 ,  B32B27/12 ,  B32B27/30 ,  A47G19/22 ,  B65D1/34 ,  B65D5/62 ,  B65D25/14 ,  B32B27/18

Abstract: A biodegradable packaging material, a method of manufacturing the same, as well as products made of the material wherein the manufacture comprises extrusion onto a fibrous substrate one or mote polymer coating layers including at least one layer of a polymer blend consisting of (i) 20-95 wt-% of polylactide having a high melt index of more than 35 g/10 min (210° C.; 2.16 kg), (ii) 5-80 wt-% of polybutylene succinate (PBS) or a biodegradable derivate thereof, and (iii) 0-5 wt-% of one or more polymeric additives. The components of the blend are melted and blended in connection with the extrusion step. The goal is to improve extrudability, increase machine speed in extrusion and maintaining good adhesiveness to the substrate and wood heat-sealability of the coating. The products include disposable drinking cups and board trays, as well as sealed carton packages for solids and liquids.

公开(公告)号：US10011096B2

公开(公告)日：2018-07-03

申请号：US14646565

申请日：2013-11-13

Applicant: Stora Enso OYJ

Inventor： Kimmo Nevalainen ,  Ville Ribu

IPC: B32B27/08 ,  B32B27/10 ,  B32B27/32 ,  A47G19/22 ,  B29C47/02 ,  B29C47/06 ,  B32B37/15 ,  B32B27/12 ,  B29C47/00 ,  B29K23/00 ,  B29K105/00 ,  B29K711/12

CPC classification number: B32B27/08 ,  A47G19/2205 ,  A47G2400/10 ,  B29C48/022 ,  B29C48/154 ,  B29C48/21 ,  B29K2023/0625 ,  B29K2023/0633 ,  B29K2023/065 ,  B29K2105/0088 ,  B29K2711/12 ,  B29L2031/712 ,  B29L2031/7132 ,  B32B27/10 ,  B32B27/12 ,  B32B27/32 ,  B32B37/153 ,  B32B2270/00 ,  B32B2307/31 ,  B32B2307/7163 ,  B32B2307/718 ,  B32B2307/7246 ,  B32B2317/12 ,  B32B2439/70

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, an innermost polymer layer (2) containing a blend of (i) 10 to 25 wt-% of a low-density polyethylene (LDPE) and (ii) 75 to 90 wt-% of a second polyethylene with a higher melt viscosity, said second polyethylene being selected from linear low-density polyethylene (LLDPE) and high-density polyethylene (HDPE), and an outer layer (3) of more than 90 wt-% of HDPE. An outermost layer (4) of a polymer blend similar to that used for the innermost layer (2) may be provided for heat-sealing. The layers (2, 3 and 4) may be 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：US11643259B2

公开(公告)日：2023-05-09

申请号：US16762681

申请日：2018-11-08

Applicant: Stora Enso OYJ

Inventor： Ville Ribu ,  Paula Hirsilä ,  Kaj Backfolk

IPC: B65D65/40 ,  B32B27/08 ,  B32B27/10 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34 ,  C08L23/06

CPC classification number: B65D65/40 ,  B32B27/08 ,  B32B27/10 ,  B32B27/306 ,  B32B27/308 ,  B32B27/32 ,  B32B27/34 ,  C08L23/06 ,  B32B2250/05 ,  B32B2307/31 ,  B32B2307/718 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2553/00

Abstract: The present invention is directed to a packaging material, more specifically a packaging material having gas and/or moisture barrier properties, wherein the material comprises a barrier material comprising a layer comprising at least 50% of a zinc ionomer, a layer of polyethylene and a layer that forms a gas barrier. The invention is also directed to packaging products using said barrier material. Such products are in particular packages suitable for cosmetics and personal care products.

公开(公告)号：US11346057B2

公开(公告)日：2022-05-31

申请号：US16955928

申请日：2018-12-18

Applicant: Stora Enso OYJ

Inventor： Esa Saukkonen ,  Isto Heiskanen ,  Ville Ribu

IPC: D21H27/10 ,  B32B27/10 ,  B32B27/32 ,  D21H11/18 ,  D21H19/22

Abstract: The present invention relates to a laminate having oxygen barrier properties, which laminate comprises; a porous fiber based layer comprising nanocellulose and cellulosic fibers wherein said fiber based layer has an air resistance of less than 4000 s/100 ml measured according to ISO5636/6 and a polymer layer attached to at least one side of said fiber based layer to form said laminate. The present invention further relates to a method to produce said laminate and a paper or paperboard product comprising the laminate and the use of the laminate.

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：US20190091982A1

公开(公告)日：2019-03-28

申请号：US16087207

申请日：2017-03-20

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Esa Saukkonen ,  Ville Ribu

IPC: B32B27/32 ,  B32B27/10 ,  B32B27/12 ,  B32B27/30 ,  B32B27/34 ,  B32B29/00

Abstract: The invention concerns a fibrous-based oxygen barrier film, which comprises (i) a microfibrillated cellulose (MFC) film, (ii) an oxygen barrier polymer layer, (iii) an optional tie layer, and (iv) an outermost polyolefin layer. The invention even concerns a laminate, in which said multilayer film is combined with a fibrous paper or board base by means of an intermediate poly-ethylene layer. The oxygen barrier polymerlayer, which preferably is EVOH, and the polyolefin layer are brought by coextrusion onto the MFC film. The film and the laminate according to the invention aim at an improved oxygen barrier in high humidity conditions and have use in oxygen-sensitive food packaging.

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.