Patents Assigned to ENSO Oyj
  • Publication number: 20210269205
    Abstract: A substantially cylindrical, metal container (1) which container comprising an envelope surface wall (2), a top end and a bottom end (3), wherein the bottom end having a cavity which is formed by a circular concave, parabolic bottom surface (4) and a circular surrounding edge (5). A UHF RFID tag (6), comprising an integrated circuit (7) and an antenna (8), is arranged at the bottom end, wherein the antenna is located at a predetermined distance above the center of the bottom surface (4), such that the bottom surface reflects the antenna radiation.
    Type: Application
    Filed: July 2, 2019
    Publication date: September 2, 2021
    Applicant: Stora Enso OYJ
    Inventors: Lauri Huhtasalo, Elham Moradi
  • Patent number: 11105045
    Abstract: The present invention relates to a method for the production of a film comprising microfibrillated cellulose, wherein the method comprises the steps of; providing a suspension comprising between 70 weight-% to 100 weight-% of microfibrillated cellulose based on total dry weight, forming a fibrous web of said suspension, drying the web in a drying equipment wherein the web is at least partly dried at a drying rate above 75 kg(H2O)/m2/h by use of hot air whereby a film is formed. The invention also relates to a film produce according to the method and a paper or paperboard substrate comprising said film.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: August 31, 2021
    Assignee: Stora Enso OYJ
    Inventors: Riku Pihko, Vesa Kunnari
  • Patent number: 11104774
    Abstract: The present invention relates to a method for increasing the reactivity of lignin which method comprises the following steps; providing a mixture comprising lignin and an alkali solution wherein the concentration of the alkali solution of the mixture is between 5-50% by weight, storing said mixture for a period of at least 1 day whereby the reactivity of the lignin is increased. The present invention also relates to a resin composition comprising said lignin and use of said resin composition.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: August 31, 2021
    Assignee: Stora Enso OYJ
    Inventors: Dimitri Areskogh, Ashar Zafar
  • Patent number: 11098452
    Abstract: The invention relates to a method of manufacturing a heat-sealable packaging material, the method comprising the steps of: providing a paperboard substrate comprising a top ply, applying a first dispersion barrier layer on the top ply, wherein the first dispersion barrier layer comprises a latex having a first glass transition temperature, and applying a second dispersion barrier layer on the first barrier layer, wherein the second dispersion barrier layer comprises a latex having a second glass transition temperature, wherein the second glass transition temperature is higher than the first glass transition temperature, wherein the grammage of the second dispersion barrier layer is lower than the grammage of the first dispersion barrier layer, and wherein the second dispersion barrier layer comprises pigments. The invention further relates to a respective heat-sealable packaging material.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: August 24, 2021
    Assignee: Stora Enso OYJ
    Inventors: Kaj Backfolk, Chris Bonnerup
  • Publication number: 20210253922
    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.
    Type: Application
    Filed: June 28, 2019
    Publication date: August 19, 2021
    Applicant: Stora Enso OYJ
    Inventors: Ben Nasli Bakir, Staffan Torssell, Lars Hjelm, Li Jansson, Huynh Tram Anh Pham, Ashar Zafar
  • Patent number: 11090834
    Abstract: The present invention relates to a method for manufacturing a wet glued wood article, as well as a wet glued article obtainable by said method and also uses of a wet glued article, wherein the method comprises the following steps: a) providing two actively never-dried or slightly dried wood pieces comprising at least one surface each which has a superficial layer having a thickness of least 2-3 wood cells; b) drying said surfaces of said wood pieces so that the moisture content of said superficial layer is below the fibre saturation point, providing a dried surface on each of the said wood pieces; c) applying a gluing agent on said dried surface of one of the wood pieces, thus providing a glue surface; d) bringing the dried surfaces together so that said glue surface touches the dried surface on the other wood piece, thus providing a wet glued wood article.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: August 17, 2021
    Assignee: Stora Enso OYJ
    Inventor: Markus Hirmke
  • Publication number: 20210245481
    Abstract: The invention relates to a packaging material comprising: a paperboard substrate comprising a first and a second side, at least one barrier layer applied on the first side of the substrate, the barrier layer comprising a water-soluble polymer selected from the group of polyvinyl alcohol, a copolymer of ethylene and polyvinyl alcohol, starch, carboxymethylcellulose and combinations thereof in an amount of at least 50 weight %, based on the dry weight of the barrier layer, an extrusion coated layer of a polyolefin on the barrier layer, and at least one dispersion barrier layer applied on the second side of the substrate, which at least one dispersion barrier layer forms a printing surface of the packaging material. The invention further relates to a method of manufacturing a respective packaging material.
    Type: Application
    Filed: June 12, 2019
    Publication date: August 12, 2021
    Applicant: Stora Enso OYJ
    Inventors: Åsa Nyflött, Chris Bonnerup, Magnus Ekberg
  • Patent number: 11084261
    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 polyethylene 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.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: August 10, 2021
    Assignee: Stora Enso OYJ
    Inventors: Isto Heiskanen, Esa Saukkonen, Ville Ribu
  • Patent number: 11084931
    Abstract: The present invention relates to an activated lignin composition, its manufacture and its use thereof. It also relates to a resin comprising lignin, its manufacture and use.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: August 10, 2021
    Assignee: Stora Enso OYJ
    Inventors: Dimitri Areskogh, Ashar Zafar
  • Publication number: 20210238424
    Abstract: The present invention relates to a process for preparing a bonding resin, wherein a resin prepared from lignin, phenol and formaldehyde is mixed with a resin prepared from phenol and formaldehyde to achieve a mixture useful as a bonding resin useful in the manufacture of laminates, mineral wool insulation and wood products such as plywood, laminated veneer lumber (LVL), medium density fiberboards (MDF) and particle boards.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 5, 2021
    Applicant: Stora Enso OYJ
    Inventors: Ben Nasli Bakir, Ashar Zafar, Jesper Ekström
  • Publication number: 20210238464
    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.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 5, 2021
    Applicant: Stora Enso OYJ
    Inventors: Ben Nasli Bakir, Ashar Zafar, Jesper Ekström
  • Publication number: 20210238367
    Abstract: The present invention relates to a process for preparing a bonding resin, wherein a resin prepared from lignin, phenol and formaldehyde and comprising a formaldehyde scavenger, is mixed with a resin prepared from phenol and formaldehyde and comprising a formaldehyde scavenger to achieve a mixture useful as a bonding resin useful in the manufacture of oriented strand board (OSB).
    Type: Application
    Filed: April 16, 2019
    Publication date: August 5, 2021
    Applicant: Stora Enso OYJ
    Inventors: Ben Nasli Bakir, Ashar Zafar, Jesper Ekström
  • Patent number: 11078626
    Abstract: A method for forming a thermoplastic composite material in a papermaking machine, wherein the method comprises the steps of: forming an aqueous fiber material suspension; bringing said fiber suspension in contact with at least one additive, said additive being introduced into said fiber suspension, whereby said additive reacts to form a precipitation product onto or into the fibers, thereby forming an intermediate suspension, introducing, after the formation of the intermediate suspension, a plastic material into said intermediate suspension, thereby forming a plastic fiber composite suspension.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: August 3, 2021
    Assignee: Stora Enso OYJ
    Inventor: Kaj Backfolk
  • Patent number: 11077648
    Abstract: A corrugated fiberboard comprising cellulosic fibers, wherein said corrugated fiberboard has at least one of a geometrical tensile index in the range of from 32 to 65 Nm/g, a fracture toughness index in the range of from 4 to 24 Jm/kg, and a ring crush index in the range of from 5 to 10 Nm/g5 measured at relative humidity of 85% RH; wherein the cellulosic fibers comprises a mixture of less refined fibers having a Schopper-Riegler (SR) value in the range of 15 to 28 and microfibrillated cellulose fibers, wherein mixture comprises said microfibrillated cellulose in a range of from 1% to 5% by weight of the dry content of the cellulosic fibers.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: August 3, 2021
    Assignee: Stora Enso OYJ
    Inventors: Isto Heiskanen, Seppo Lampainen, Jukka Kankkunen
  • Patent number: 11072458
    Abstract: The disclosure relates to a container (10) comprising a sealing surface (15), wherein the sealing surface (15) is provided with a pattern (30) of ridges (31, 32) and valleys (33), and wherein the sealing surface (15) has a) oleophobic and/or b) oleophilic properties: a) repelling fat such that any fat on the sealing surface (15) has a tendency not to stick to the pattern (30) on the sealing surface thus creating an essentially fat-free sealing surface orb) attracting fat such that any fat on the sealing surface (15) has a tendency to settle down in the valleys (33) of the pattern (30) on the sealing surface, respectively.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: July 27, 2021
    Assignee: Stora Enso OYJ
    Inventors: Ville Ribu, Nina Miikki
  • Publication number: 20210221114
    Abstract: The invention relates to a ply of a linerboard for corrugated board, which ply exhibits high strength properties and which enables the production of lightweight linerboards. The ply of the invention comprises 20-80 wt % CTMP from wood fibers and 80-20 wt % chemical pulp, calculated on the total fiber weight of said ply and strength additives chosen from the group of microfibrillated cellulose (MFC), anionic or cationic polymers and starchor combinations thereof. The ply exhibits a geometric SCT index of above 22 Nm/g and a density of below 680 kg/m3, preferably of below 650 kg/m3.
    Type: Application
    Filed: June 25, 2019
    Publication date: July 22, 2021
    Applicant: Stora Enso OYJ
    Inventors: Seppo Lampainen, Frank Peng, Atso Laakso, Ari-Pekka Määttänen
  • Publication number: 20210222369
    Abstract: The present invention relates to a coating composition for coating of paper or paperboard, said composition comprising: a pigment, a binder, an optical brightening agent (OBA), and xylitol, and to paper or paperboard coated with at least one layer of the coating composition. The present invention further relates to a method for preparing said coating composition and to an OBA premix useful in the method of preparing the coating composition, said premix comprising an OBA and xylitol, wherein the OBA and sugar alcohol together make up at least 10% by weight, preferably at least 20% by weight, based on the total weight of solids in the premix.
    Type: Application
    Filed: May 14, 2019
    Publication date: July 22, 2021
    Applicant: Stora Enso OYJ
    Inventors: Tuula Sokka, Kaj Backfolk
  • Publication number: 20210214896
    Abstract: The present invention relates to a coating composition for coating of paper or paperboard, said composition comprising: a pigment, a binder, an optical brightening agent (OBA), a colorant, and a sugar alcohol, and to paper or paperboard coated with at least one layer of the coating composition. The present invention further relates to a method for preparing said coating composition and to an OBA premix useful in the method of preparing the coating composition, said premix comprising an OBA, a sugar alcohol, and optionally a colorant, wherein the OBA and sugar alcohol together make up at least 10% by weight, preferably at least 20% by weight, based on the total weight of solids in the premix.
    Type: Application
    Filed: May 14, 2019
    Publication date: July 15, 2021
    Applicant: Stora Enso OYJ
    Inventors: Tuula Sokka, Kaj Backfolk
  • Publication number: 20210207324
    Abstract: The present invention relates to a process for improving the strechability of films comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the oxygen barrier properties. According to the present invention, a film is formed from a suspension comprising microfibrillated cellulose having a broad size distribution.
    Type: Application
    Filed: October 9, 2018
    Publication date: July 8, 2021
    Applicant: Stora Enso OYJ
    Inventor: Isabel Knöös
  • Patent number: D922194
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: June 15, 2021
    Assignee: Stora Enso OYJ
    Inventors: Sohrab Kazemahvazi, Alexander Westerlund