Patents by Inventor Christian Aulin

Christian Aulin 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).

  • Patent number: 11724284
    Abstract: The method of the invention relates to a method of manufacturing a fibrous, oxygen barrier film by casting a suspension comprising microfibrillated cellulose onto a non-porous substrate in a number of subsequent steps with intermediate drying. The invention enables an efficient method to manufacture an MFC film by casting technology without the problems of cracks or voids formed in the film. By applying the MFC in several layers, with in-between drying, the distance the water has to diffuse through is shorter, whereby the evaporation is more efficient and the film properties are not negatively affected by the drying.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: August 15, 2023
    Assignee: Stora Enso OYJ
    Inventors: Lars Axrup, Isabel Knöös, Christian Aulin, Magnus Hillergren, Tom Lindström, Göran Ström
  • 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
  • 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: 20200023409
    Abstract: The method of the invention relates to a method of manufacturing a fibrous, oxygen barrier film by casting a suspension comprising microfibrillated cellulose onto a non-porous substrate in a number of subsequent steps with intermediate drying. The invention enables an efficient method to manufacture an MFC film by casting technology without the problems of cracks or voids formed in the film. By applying the MFC in several layers, with in-between drying, the distance the water has to diffuse through is shorter, whereby the evaporation is more efficient and the film properties are not negatively affected by the drying.
    Type: Application
    Filed: January 30, 2017
    Publication date: January 23, 2020
    Applicant: Stora Enso OYJ
    Inventors: Lars Axrup, Isabel Knöös, Christian Aulin, Magnus Hillergren, Tom Lindström, Göran Ström
  • Patent number: 10138599
    Abstract: The present invention relates to process for the production of a coated substrate comprising cellulosic fibers, the process comprising the steps of: i) providing a first substrate comprising cellulosic fibers and having a dry content of less than 50%; ii) applying a coating composition to the first substrate in an amount of more than 5 g/m2, calculated as dry weight of the coating composition, wherein the coating composition comprises: microfibrillated cellulose (MFC), and optionally a water retention agent selected from carboxymethyl cellulose (CMC), anionic polyacrylamide (A-PAM), sodium polyacrylates, polyacrylic acid derivatives, guar gum, alginate, MFC prepared from carboxymethylated fibers, MFC prepared from oxidized fibers, MFC prepared by CMC-functionalized fibers, and/or combinations thereof; and iii) mechanically dewatering the first substrate. The present process provides an energy efficient coating process which can be performed online.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: November 27, 2018
    Assignee: STORA ENSO OYJ
    Inventors: Christian Aulin, Lars Axrup, Göran Flodberg, Magnus Hillergren, Tom Lindström, Carl-Henrik Ljungqvist, Göran Ström
  • Publication number: 20170342661
    Abstract: The present invention relates to process for the production of a coated substrate comprising cellulosic fibres, the process comprising the steps of: i) providing a first substrate comprising cellulosic fibres and having a dry content of less than 50%; ii) applying a coating composition to the first substrate in an amount of more than 5 g/m2, calculated as dry weight of the coating composition, wherein the coating composition comprises: microfibrillated cellulose (MFC), and optionally a water retention agent selected from carboxymethyl cellulose (CMC), anionic polyacrylamide (A-PAM), sodium polyacrylates, polyacrylic acid derivatives, guar gum, alginate, MFC prepared from carboxymethylated fibers, MFC prepared from oxidized fibers, MFC prepared by CMC-functionalised fibers, and/or combinations thereof; and iii) mechanically dewatering the first substrate. The present process provides an energy efficient coating process which can be performed online.
    Type: Application
    Filed: December 14, 2015
    Publication date: November 30, 2017
    Inventors: Christian Aulin, Lars Axrup, Göran Flodberg, Magnus Hillergren, Tom Lindström, Carl-Henrik Ljungqvist, Göran Ström