Patents by Inventor Isto Heiskanen

Isto Heiskanen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200325287
    Abstract: The present invention is directed to a film comprising a base film which has been coated on at least one side with a coating that enhances gas and/or moisture barrier properties, wherein the base film comprises a fiber material and at least 60% by weight of said fiber material is microfibrillated cellulose, and the thickness of the coating is from 0.05 to 20 ?m. The invention is also directed to products using said film. Such products are in particular packages suitable for sensitive objects that need to be packaged in a controlled or modified atmosphere. The film is also useful for other purposes, such as in the manufacture of balloons.
    Type: Application
    Filed: April 26, 2017
    Publication date: October 15, 2020
    Inventors: Kaj Backfolk, Isto Heiskanen, Esa Saukkonen, Jukka Kankkunen
  • Publication number: 20200318293
    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.
    Type: Application
    Filed: December 18, 2018
    Publication date: October 8, 2020
    Applicant: Stora Enso OYJ
    Inventors: Esa Saukkonen, Isto Heiskanen, Ville Ribu
  • Patent number: 10787770
    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
  • Patent number: 10752741
    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
  • Publication number: 20200239652
    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
  • Patent number: 10711403
    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.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: July 14, 2020
    Assignee: Stora Enso OYJ
    Inventors: Isto Heiskanen, Jari Rasanen
  • Patent number: 10683616
    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.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: June 16, 2020
    Assignee: Stora Enso OYJ
    Inventors: Philip Håkansson, Isto Heiskanen
  • Publication number: 20200181847
    Abstract: A method of dosing a nanocellulose suspension in gel phase into a second suspension, wherein the method comprises the steps of: providing said nanocellulose suspension in gel phase; providing said second suspension; bringing said nanocellulose suspension in gel phase in contact with said second suspension; wherein the method comprises a step of subjecting said nanocellulose suspension in gel phase to a shear rate of more than 500 l/s, simultaneously with and/or immediately prior to the step of bringing said nanocellulose suspension in gel phase and said second suspension in contact with each other.
    Type: Application
    Filed: July 2, 2018
    Publication date: June 11, 2020
    Inventors: Esa SAUKKONEN, Isto HEISKANEN, Kaj BACKFOLK, Jouni MATULA, Jussi MATULA
  • Patent number: 10676868
    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
  • Publication number: 20200173109
    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
  • Publication number: 20200171796
    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
  • Patent number: 10619304
    Abstract: The invention relates to a surface treatment composition for paper, board or other fibrous webs. The composition of the invention comprises particles which comprise an active material and a supporting material. The active material comprises a salt or a multivalent metal, such as a divalent or trivalent metal. In accordance with the invention, the supporting material is adapted to release the active material from the particles when subjected to heat and/or pressure and/or a change in pH. Consequently, the active material's adverse effects on the rheology of the composition are avoided while its desired effects on the surface characteristics are retained or enhanced.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: April 14, 2020
    Assignee: Stora Enso OYJ
    Inventors: Kaj Backfolk, Isto Heiskanen, Nina Miikki
  • Publication number: 20200071883
    Abstract: A surface treatment composition for paper, board or other fibrous webs. The composition of the invention comprises particles which comprise an active material and a supporting material. The active material comprises a salt of a multivalent metal, such as a divalent or trivalent metal. In accordance with the invention, the supporting material is adapted to release the active material from the particles when subjected to heat and/or pressure and/or a change in pH. Consequently, the active material's adverse effects on the rheology of the composition are avoided while its desired effects on the surface characteristics are retained or enhanced.
    Type: Application
    Filed: November 11, 2019
    Publication date: March 5, 2020
    Applicant: Stora Enso OYJ
    Inventors: Kaj Backfolk, Isto Heiskanen, Nina Miikki
  • Patent number: 10577805
    Abstract: The present invention relates to a method for applying a wallpaper material onto a surface comprising the steps of providing a liquid suspension comprising cellulosic fibers wherein at least part of said cellulosic fibers comprises microfibrillated cellulose and wherein said liquid suspension has a dry content of at least 10% by weight, applying at least one layer of said liquid suspension onto the surface, drying said liquid suspension layer after it has been applied onto the surface, and thereby forming a dry fiber web layer, wherein said fiber web layer forms said wallpaper material.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: March 3, 2020
    Assignee: Stora Enso OYJ
    Inventors: Isto Heiskanen, Duncan Mayes, Simo Siitonen
  • Patent number: 10577747
    Abstract: A method for the production of a film from a fibrous web, wherein the method comprises the steps of: providing a fibrous suspension comprising a microfibrillated cellulose, wherein the content of the microfibrillated cellulose of said suspension is in the range of 60 to 99.9 weight-% based on total dry solid content, adding an amphoteric polymer to said suspension to provide a mixture of said microfibrillated cellulose and said amphoteric polymer, providing said mixture to a substrate to form a fibrous web, wherein the amount of amphoteric polymer in said mixture is in the range of 0.1 to 20 kg/metric ton based on total dry solid content; and dewatering said fibrous web to form a film having a basis weight of less than 40 g/m2 and a density in the range of from 700 to 1000 kg/m3.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: March 3, 2020
    Assignee: Stora Enso OYJ
    Inventors: Isto Heiskanen, Kaj Backfolk
  • Publication number: 20200056333
    Abstract: The present invention relates to a new process for providing a coating layer on a moulded article comprising fibers. In the present invention, a coating dispersion is prepared that comprises microfibrillated cellulose (MFC), a slip aid and at least one hydrocolloid.
    Type: Application
    Filed: October 26, 2017
    Publication date: February 20, 2020
    Applicant: Stora Enso OYJ
    Inventors: Kaj Backfolk, Isto Heiskanen, Esa Saukkonen
  • Publication number: 20200056334
    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: Application
    Filed: October 31, 2017
    Publication date: February 20, 2020
    Applicant: Stora Enso OYJ
    Inventors: Isto HEISKANEN, Seppo LAMPAINEN, Kaj BACKFOLK, Esa SAUKKONEN, Jukka KANKKUNEN, Christian AULIN, Astrid ODEBERG GLASENAPP
  • Publication number: 20200023627
    Abstract: The present invention relates to a method for the production of a coated paper, paperboard or film, wherein the method comprises the steps of; providing a first suspension comprising cellulose fibers, applying the first suspension on a substrate to form a fibrous web, wherein the web has a first and a second side, providing a second suspension comprising micro fibrillated cellulose, applying the second suspension either to the first side of the fibrous web or to a surface of a drying equipment and conducting said fibrous web through the drying equipment whereby the second suspension is added to the first side of the web forming the coated paper, paperboard or film. The invention also relates to a paper, paperboard or film produced according to the method.
    Type: Application
    Filed: December 21, 2017
    Publication date: January 23, 2020
    Applicant: Stora Enso OYJ
    Inventors: Isto Heiskanen, Esa Saukkonen
  • Publication number: 20200010629
    Abstract: The present invention relates to a new process for improving runnability and dimensional stability when manufacturing a film comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the film properties. According to the present invention a high amount of nanoparticles is used as an additive, optionally together with a retention polymer.
    Type: Application
    Filed: February 27, 2018
    Publication date: January 9, 2020
    Applicant: Stora Enso OYJ
    Inventors: Kaj Backfolk, Isto Heiskanen, Esa Saukkonen
  • Publication number: 20200008372
    Abstract: The present invention is directed to a culture medium comprising a soilless substrate, microfibrillated cellulose and a hydrophilic or amphiphilic polymer. The present invention is particularly useful in soilless agriculture, such as for horticultural/agricultural use that is based on a soilless substrate such as mineral or glass wool. These types of culture media are often used in greenhouses but may also be used for outdoor horticulture or agriculture.
    Type: Application
    Filed: February 27, 2018
    Publication date: January 9, 2020
    Applicant: Stora Enso OYJ
    Inventors: Kaj Backfolk, Isto Heiskanen, Esa Saukkonen, Elina Skerfe