Patents by Inventor Katariina Kemppainen

Katariina Kemppainen 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).

  • Method for producing oxidized lignin in kraft pulp mill
    Patent number: 12054886
    Abstract: According to an example aspect of the present invention, there is provided a method for producing an oxidised lignin based high performance surface active agent in techno-economically feasible manner within kraft pulp mill without interfering the main process.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: August 6, 2024
    Assignees: Andritz Oy, Metsä Fibre Oy, Teknologian tutkimuskeskus VTT Oy
    Inventors: Lauri Pehu-Lehtonen, Pauliina Sjögård, Outi Poukka, Katariina Kemppainen, Anna Kalliola, Tiina Liitiä, Tapio Vehmas
  • Method for producing oxidized lignin in kraft pulp mill
    Publication number: 20220120035
    Abstract: According to an example aspect of the present invention, there is provided a method for producing an oxidised lignin based high performance surface active agent in techno-economically feasible manner within kraft pulp mill without interfering the main process.
    Type: Application
    Filed: January 31, 2020
    Publication date: April 21, 2022
    Inventors: Lauri Pehu-Lehtonen, Pauliina Sjögård, Outi Poukka, Katariina Kemppainen, Anna Kalliola, Tiina Liitiä, Tapio Vehmas
  • Method of producing films from high consistency enzyme fibrillated nanocellulose
    Patent number: 10865280
    Abstract: According to an example aspect of the present invention, there is provided a method of producing films from nanocellulose based raw materials having high consistency and thereby providing low energy consuming and feasible manufacturing process of CNF films and film materials.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: December 15, 2020
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Vesa Kunnari, Jaakko Pere, Jaakko Hiltunen, Katariina Kemppainen
  • Method of producing films from high consistency enzyme fibrillated nanocellulose
    Publication number: 20190002658
    Abstract: According to an example aspect of the present invention, there is provided a method of producing films from nanocellulose based raw materials having high consistency and thereby providing low energy consuming and feasible manufacturing process of CNF films and film materials.
    Type: Application
    Filed: December 30, 2016
    Publication date: January 3, 2019
    Inventors: Vesa Kunnari, Jaakko Pere, Jaakko Hiltunen, Katariina Kemppainen
  • Process for producing fibrillated cellulose material
    Patent number: 10087477
    Abstract: The present invention relates to a process for producing a fibrillated cellulose material. In the invention fibrillated cellulose is produced enzymatically by using a low energy demanding mechanical mixer such as plough share mixer, to enhance the fibrillation. Enzymes and process conditions are chosen so that the cellulose degradation is as low as possible, while obtaining a high yield of nanofibrils. Sugars that are produced into the end-product may also be furthermore exploited.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: October 2, 2018
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Jaakko Hiltunen, Katariina Kemppainen, Jaakko Pere
  • Process for producing fibrillated cellulose material
    Publication number: 20160355857
    Abstract: The present invention relates to a process for producing a fibrillated cellulose material. In the invention fibrillated cellulose is produced enzymatically by using a low energy demanding mechanical mixer such as plough share mixer, to enhance the fibrillation. Enzymes and process conditions are chosen so that the cellulose degradation is as low as possible, while obtaining a high yield of nanofibrils. Sugars that are produced into the end-product may also be furthermore exploited.
    Type: Application
    Filed: December 18, 2014
    Publication date: December 8, 2016
    Inventors: Jaakko Hiltunen, Katariina Kemppainen, Jaakko Pere