Patents by Inventor Timo Pääkkönen

Timo Pääkkönen 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).

  • A method of treating a cellulosic material, a method of preparing a hydrolysed cellulosic material, use of a chlorite salt and gaseous pressurized HCl, use of chlorous acid, and a hydrolysed cellulosic material
    Publication number: 20220220225
    Abstract: According to an example aspect of the present invention, there is provided a method of treating, such as hydrolysing, a cellulosic material, comprising: preparing a mixture comprising or consisting of a cellulosic material and a chlorite containing water solution, such as a chlorite salt containing water solution; acidifying said mixture.
    Type: Application
    Filed: May 8, 2020
    Publication date: July 14, 2022
    Inventors: Timo Pääkkönen, Eero Kontturi
  • METHOD FOR PRODUCING PARENCHYMAL CELL CELLULOSE
    Publication number: 20220162799
    Abstract: A method for producing parenchymal cell cellulose by using a high consistency alkali treatment and an optional refinement step, as well as an apparatus for its manufacture.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 26, 2022
    Applicant: Betulium Oy
    Inventors: Antti LAUKKANEN, Marko LAURAEUS, Jason MCKEE, Timo PÄÄKKÖNEN, Tapio SAARINEN
  • Method for producing parenchymal cell cellulose
    Patent number: 11299852
    Abstract: A method for producing parenchymal cell cellulose by using a high consistency alkali treatment and an optional refinement step, as well as an apparatus for its manufacture.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: April 12, 2022
    Assignee: Betulium Oy
    Inventors: Antti Laukkanen, Marko Lauraeus, Jason McKee, Timo Pääkkönen, Tapio Saarinen
  • METHOD FOR PRODUCING PARENCHYMAL CELL CELLULOSE
    Publication number: 20200308765
    Abstract: A method for producing parenchymal cell cellulose by using a high consistency alkali treatment and an optional refinement step, as well as an apparatus for its manufacture.
    Type: Application
    Filed: December 14, 2016
    Publication date: October 1, 2020
    Applicant: Betulium Oy
    Inventors: Antti LAUKKANEN, Marko LAURAEUS, Jason MCKEE, Timo PÄÄKKÖNEN, Tapio SAARINEN
  • Method for catalytic oxidation of cellulose and method for making a cellulose product
    Patent number: 10767307
    Abstract: A method for catalytic oxidation of cellulose using a heterocyclic nitroxyl radical as catalyst, main oxidant acting as oxygen source, and an activator of the heterocyclic nitroxyl radical, comprises—a preliminary activation step of the heterocyclic nitroxyl radical with hypochlorite to activated catalyst, and after the preliminary activation step, a cellulose oxidation step using the activated catalyst and hypochlorite as the main oxidant to oxidize cellulose. In the cellulose oxidation step, fibrous starting material is subjected to the oxidation to oxidize the cellulose, whereafter the oxidized fibrous raw material is disintegrated to nanofibrillar cellulose (NFC).
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: September 8, 2020
    Assignee: UPM-KYMMENE, CORPORATION
    Inventors: Timo Pääkkönen, Tapani Vuorinen, Markus Nuopponen
  • Method for catalytic oxidation of cellulose and method for making a cellulose product
    Patent number: 9410285
    Abstract: In a method for catalytic oxidation of cellulose a heterocyclic nitroxyl radical is used as catalyst, hypochlorite is used as main oxidant acting as oxygen source, and a tertiary amine or chlorine dioxide as an activator of the heterocyclic nitroxyl radical.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: August 9, 2016
    Assignee: UPM-KYMMENE CORPORATION
    Inventors: Tapani Vuorinen, Timo Pääkkönen, Markus Nuopponen
  • METHOD FOR CATALYTIC OXIDATION OF CELLULOSE AND METHOD FOR MAKING A CELLULOSE PRODUCT
    Publication number: 20160160440
    Abstract: A method for catalytic oxidation of cellulose using a heterocyclic nitroxyl radical as catalyst, main oxidant acting as oxygen source, and an activator of the heterocyclic nitroxyl radical, comprises—a preliminary activation step of the heterocyclic nitroxyl radical with hypochlorite to activated catalyst, and after the preliminary activation step, a cellulose oxidation step using the activated catalyst and hypochlorite as the main oxidant to oxidize cellulose. In the cellulose oxidation step, fibrous starting material is subjected to the oxidation to oxidize the cellulose, whereafter the oxidized fibrous raw material is disintegrated to nanofibrillar cellulose (NFC).
    Type: Application
    Filed: July 29, 2014
    Publication date: June 9, 2016
    Inventors: Timo Pääkkönen, Tapani Vuorinen, Markus Nuopponen
  • METHOD FOR CATALYTIC OXIDATION OF CELLULOSE AND METHOD FOR MAKING A CELLULOSE PRODUCT
    Publication number: 20140110070
    Abstract: In a method for catalytic oxidation of cellulose a heterocyclic nitroxyl radical is used as catalyst, hypochlorite is used as main oxidant acting as oxygen source, and a tertiary amine or chlorine dioxide as an activator of the heterocyclic nitroxyl radical.
    Type: Application
    Filed: June 8, 2012
    Publication date: April 24, 2014
    Applicant: UPM-KYMMENE CORPORATION
    Inventors: Tapani Vuorinen, Timo Pääkkönen, Markus Nuopponen