Patents by Inventor Kristina Mohlin

Kristina Mohlin 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).

  • Sizing of paper
    Publication number: 20070277949
    Abstract: The present invention relates to a process for the production of paper which comprises: (a) providing an aqueous cellulosic suspension; (b) separately adding to the suspension: (i) a nitrogen-containing organic compound having a molecular weight less than 1,000; and (ii) a cellulose-reactive sizing agent; and (c) dewatering the obtained suspension to form paper. The invention further relates to a process in which a nitrogen-containing organic compound having a molecular weight less than 1,000 is mixed with an aqueous dispersion of a cellulose-reactive sizing agent to form a pre-mix and which premix is added to the suspension.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 6, 2007
    Applicant: AKZO NOBEL N.V.
    Inventors: Jonas Liesen, Jeanette Risen, Kristina Mohlin, Agneta Lernbrink
  • Sizing composition
    Patent number: 6692560
    Abstract: The present invention refers to an essentially water-free sizing composition and an aqueous sizing dispersion comprising a sizing agent, a non-ionic surfactant, an anionic surfactant and a monohydric alcohol. The invention also relates to a method for producing an aqueous dispersion comprising the above components and the use of the dispersion for surface and stock sizing.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: February 17, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Krister Holmberg, Håkan Leijon, Kristina Mohlin
  • Sizing composition
    Publication number: 20030097964
    Abstract: The present invention refers to an essentially water-free sizing composition and an aqueous sizing dispersion comprising a sizing agent, a non-ionic surfactant, an anionic surfactant and a monohydric alcohol. The invention also relates to a method for producing an aqueous dispersion comprising the above components and the use of the dispersion for surface and stock sizing.
    Type: Application
    Filed: May 8, 2002
    Publication date: May 29, 2003
    Inventors: Krister Holmberg, Hakan Leijon, Kristina Mohlin