Abstract: Method for manufacturing an RFID tag comprising an IC and an antenna. The method comprising the steps of providing an antenna made of a soldering material, which antenna is at least partly covered with a hot melt adhesive in solid form; heating the antenna to a temperature above its melting point, wherein the heated parts of the antenna and the hot melt adhesive melt, placing an IC in a predetermined position which position is suitable for the IC to connect to the antenna; pressing the IC and antenna together, such that, an electrical connection between the IC and the antenna is established; and cooling RFID tag, such that the hot melt adhesive and the antenna solidify, wherein a soldered joint between the IC and the antenna is achieved and the hot melt adhesive surrounds the joint between the IC and the antenna.
Type:
Application
Filed:
October 31, 2018
Publication date:
October 1, 2020
Applicant:
Stora Enso OYJ
Inventors:
Lauri Huhtasalo, Eerik Halonen, Juha Ikonen
Abstract: The invention concerns a method of manufacturing paper or board, the paper or board obtained by the method, and a method of producing a tray from the board. In a fibrous stock for papermaking is incorporated an amount of polymer coated fibrous particles, which even have a foaming agent such as moisture contained therein. A web is formed from the fibrous stock on a forming fabric of a paper or board machine, followed by pressing and drying to a finished paper or board. As the paper or board is sufficiently heated the foaming agent within the particles evaporates, causing expansion and foaming of the polymer coating, which adds to malleability of the board as it is moulded into a shaped article such as a board tray. The invention even covers production of doubly coated fibrous particles for use in said methods, the inner coating layer being of a foamable polymer with a higher melt flow rate and the outer coating layer being of a non-foaming polymer of a lower melt flow rate.
Type:
Application
Filed:
February 6, 2017
Publication date:
October 1, 2020
Applicant:
Stora Enso OYJ
Inventors:
Jari Räsänen, Mari Hiltunen, Ali Harlin, Hanna Koskela, Christiane Laine, Laura Kela
Abstract: The present invention relates to a corrugated board comprising an adhesive arranged to attach a fluted corrugated medium to a liner wherein the adhesive comprises starch and microfibrillated cellulose. The invention also relates to a method to produce said corrugated board.
Type:
Grant
Filed:
October 31, 2017
Date of Patent:
September 29, 2020
Assignee:
Stora Enso OYJ
Inventors:
Isto Heiskanen, Seppo Lampainen, Kaj Backfolk, Esa Saukkonen, Jukka Kankkunen, Christian Aulin, Astrid Odeberg Glasenapp
Abstract: The present invention relates to an UV blocking film comprising microfibrillated cellulose wherein at least part of the microfibrillated cellulose is microfibrillated cellulose produced from non-chemical modified lignocellulosic material. The invention also relates to a method for producing the film, use of said film as well as a composition having UV blocking properties.
Type:
Grant
Filed:
May 15, 2017
Date of Patent:
August 25, 2020
Assignee:
Stora Enso, OYJ
Inventors:
Isto Heiskanen, Katja Lyytikäinen, Esa Saukkonen, Kaj Backfolk
Abstract: Method and apparatus for producing RFID transponders (400) arranged on a carrying substrate, comprising:providing a first substrate (100), the first substrate having at least one antenna element (101) arranged thereon, and preferably several antenna elements arranged sequentially thereon along a longitudinal extension of the first substrate, each antenna element being formed by an electrically conductive pattern; providing a second substrate (200), the second substrate (200) having at least one RFID strap, each RFID strap comprising an IC (202) and at least one contact pad (201) coupled to the IC, and preferably several RFID straps being arranged sequentially along a longitudinal extension of the second substrate; and electrically connecting an antenna element (101) on the first substrate to the at least one contact pad on the second substrate by bringing said first and second substrates together, thereby bringing said antenna element in mechanical contact with said at least one contact pad, and heating the c
Abstract: The present invention relates to a method for manufacturing a film comprising microfibrillated cellulose wherein the method comprises the steps of; providing a suspension comprising a microfibrillated cellulose, adding an enzyme to the suspension, mixing the enzyme with the suspension to form a mixture, applying said mixture to a wire to form a fibrous web and drying said web to form said film. The present invention further relates to a film comprising microfibrillated cellulose having good barrier properties.
Type:
Application
Filed:
October 17, 2018
Publication date:
July 30, 2020
Applicant:
Stora Enso OYJ
Inventors:
Esa Saukkonen, Isto Heiskanen, Kaj Backfolk, Katja Lyytikäinen
Abstract: The present invention is directed to a composite material comprising a cellulosic material, high impact polystyrene (HIPS) and styrene maleic anhydride (SMA). The cellulosic material may be thermally modified prior to being incorporated into the composite material. The present invention is also directed to a composite product that comprises the composite material according to the invention.
Type:
Application
Filed:
February 1, 2018
Publication date:
July 30, 2020
Applicants:
Stora Enso OYJ, University of Maine System Board of Trustees
Inventors:
Duncan Mayes, Janne Pynnonen, Christopher H. West, Douglas J. Gardner, Yousoo Han
Abstract: The present invention relates to a liquid lignin mixture comprising 3-50 wt % methanol, 12-50 wt % lignin and 5-85 wt % aqueous alkali solution wherein the concentration of said aqueous alkali solution is 1 to 50 wt % of alkali in water, based on the weight of said alkali solution prior to mixing with the other components of the mixture. The liquid lignin mixture can be used to manufacture lignin-based phenolic resins, which are particularly useful in the manufacture of laminates.
Abstract: The present invention relates to a composition for coating, in particular a composition comprising lignin and one or more epoxy-group containing compounds, and methods for the manufacturing thereof and uses thereof. The present invention also relates to products obtainable by said methods and uses thereof.
Abstract: The invention relates to a method of manufacturing a shaped tray or plate of fibrous material. The method comprises the steps of (i) providing a fibrous pulp, in which the fibres substantially consist of at least 85 wt-% of softwood fibres having an average fibre length of at least 2.0 mm and at most 15 wt-% of broke having a fibre length of about 0.05 mm to 1.0 mm, (ii) turning the pulp into a foamed suspension, (iii) supplying the foamed suspension from a headbox to a forming fabric of a board machine to form a fibrous web, (iv) drying the web to obtain a dried web having a compressibility in the thickness direction of at least 20%, and (v) including the web as a layer in a board, which is turned to said tray or plate by thermopressing or deep-drawing. The invention even covers shaped trays and plates produced by use of the method.
Abstract: The present invention relates to a liquid lignin composition, particularly useful in the manufacture of resins for products such as insulation, laminates and engineered wood products such as oriented strand boards (OSB). The liquid lignin composition has a low viscosity even at low water content.
Abstract: The present invention relates to a conductive carbon powder emanating essentially from lignin, a method for the manufacturing thereof and use thereof. Said powder may emanate from an electrically conductive carbon intermediate product, in turn emanating essentially from lignin. Further, uses thereof and compositions comprising said carbon powder are disclosed. Additionally methods for manufacturing said conductive carbon powder, also involving an electrically conductive carbon intermediate product emanating essentially from lignin, are disclosed together with a method for making said compositions.
Type:
Grant
Filed:
December 27, 2017
Date of Patent:
June 23, 2020
Assignee:
Stora Enso OYJ
Inventors:
Niklas Garoff, Stephan Walter, Gunnar Seide, Thomas Gries, Wilhelm Steinmann, Andreas De Palmenaer
Abstract: The invention provides a method for the production of a composite comprising microfibrillated cellulose (MFC) and precipitated calcium carbonate. The method is characterized in that MFC is added to a suspension of calcium hydroxide during carbonation, whereby calcium carbonate is precipitated onto fibers or fibrils of the MFC in a controlled manner. By adding microfibrillated cellulose to the calcium suspension during the carbonation, the brightness and the strength of the MFC/PCC-composite is enhanced. Moreover, the inventive method facilitates the distribution of calcium dioxide and MFC in the suspension and thus gives rise to a more homogenous product.
Abstract: The present invention relates to a method for manufacturing a film having an oxygen transmission rate in the range of from 1 cc/m2/24 h to 500 cc/m2/24 h according to ASTM D-3985, at a relative humidity of more than 50% at 25° C., or higher than 75% at 25° C., or higher than 85% at 25° C., wherein the method comprises the steps of: providing a first suspension comprising a microfibrillated cellulose, wherein the dry content of the suspension is in the range of from 0.1 to 10% by weight, adding a wet strength additive to said first suspension, at an amount of from 0.1 to 10 weight-% based on the amount of microfibrillated cellulose (dry/dry), thereby forming a mixture of the microfibrillated cellulose and the wet strength additive, applying said mixture to a substrate to form a fibrous web and drying said web to form said film. The present invention also relates to a film produced according to the method.
Type:
Grant
Filed:
September 16, 2016
Date of Patent:
June 9, 2020
Assignee:
Stora Enso OYJ
Inventors:
Isto Heiskanen, Kaj Backfolk, Esa Saukkonen, Nina Ruohoniemi, Katja Lyytikainen
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 ?m, 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.
Type:
Application
Filed:
March 28, 2018
Publication date:
June 4, 2020
Applicant:
Stora Enso OYJ
Inventors:
Kaj Backfolk, Isto Heiskanen, Esa Saukkonen, Jukka Kankkunen, Ville Ribu, Kimmo Nevalainen
Abstract: A method of manufacturing a film having an oxygen transmission rate (OTR) value in the range of 0.1 to 200 cc/m2*24 h at 23° C., 50% relative humidity (RH), and an OTR value in the range of 0.1 to 2000 cc/m2*24 h at 38° C. at 85% RH, comprising at least 60% by weight nanocellulose based on the weight of the total amount of fibers in the film, wherein the method comprises the steps of, providing an aqueous suspension comprising said nanocellulose; forming a web from said aqueous suspension; calendering said web at a line load of at least 40 kN/m, and at a temperature of at least 60° C. wherein said film is formed and said web has an OTR value in the range of 50 to 10 000 cc/m2*24 h at 23° C., 50% RH before said calendering step, or more preferably in the range of 500 to 5000 cc/m2*24 h at 23° C., 50% RH before said calendering step.
Type:
Application
Filed:
May 17, 2018
Publication date:
June 4, 2020
Applicant:
Stora Enso OYJ
Inventors:
Esa SAUKKONEN, Isto HEISKANEN, Katja LYYTIKÄINEN, Kaj BACKFOLK
Abstract: The present invention relates to an improved process for preparing an aqueous dispersion of lignin and the use of said suspension in the preparation of a resin.
Abstract: The present disclosure provides processes for the production of 2-5-furandicarboxylic acid (FDCA) and intermediates thereof by the chemocatalytic conversion of a furanic oxidation substrate. The present disclosure further provides processes for preparing derivatives of FDCA and FDCA-based polymers. In addition, the present disclosure provides crystalline preparations of FDCA, as well as processes for making the same.
Type:
Grant
Filed:
August 27, 2019
Date of Patent:
May 19, 2020
Assignee:
Stora Enso Oyj
Inventors:
Valery Sokolovskii, Vincent J. Murphy, Thomas R. Boussie, Gary M. Diamond, Eric L. Dias, Guang Zhu, James M. Longmire, Stanley Herrmann, Staffan Torssell, Mayya Lavrenko
Abstract: Apparatus (200, 300, 400) for component positioning comprises at least one receptacle (212, 412) configured to receive a number of components (103) to be placed on a target substrate (108, 111), agitator (210, 410) configured to exert force impulses, such as abrupt force impulses, on the receptacle so as to cause the components to change their position inside the receptacle, inspection equipment (216, 316, 416) configured to verify the position of the components inside the receptacle, and pick and place equipment (206, 306, 406) configured to pick one or more components from the receptacle that fulfil a predefined position criterion and place the components on the target substrate. A related method for component positioning is presented.
Type:
Grant
Filed:
February 2, 2016
Date of Patent:
May 19, 2020
Assignee:
Stora Enso, OYJ
Inventors:
Juha Maijala, Petri Sirvio, Tommi Jokinen
Abstract: A method for printing a wet web material comprising microfibrillated cellulose, wherein said method comprises the steps of providing an aqueous suspension comprising microfibrillated cellulose; applying said aqueous suspension to a substrate, thus forming a wet web having a moisture content in the range of 5 to 70 weight-%; wherein the method further comprises the step of treating said wet web by heating at least one well-defined portion thereof, whereby the web is provided with a print at the at least one heated portion.