Patents by Inventor Hans Hallstrom

Hans Hallstrom 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: 20100047404
    Abstract: The invention relates to a packaging laminate comprising at least one base layer of paper or paper board and at least one liquid barrier layer, said paper or paper board being sized with a formulation comprising a sizing agent selected from the group consisting of ketene dimers and multimers, succinic anhydrides, rosins and mixtures thereof, and also comprising an acrylamide based polymer The invention further relates to the production and use of a packaging laminate and a package for food or beverage products and its production.
    Type: Application
    Filed: November 29, 2007
    Publication date: February 25, 2010
    Applicant: AKZO NOBEL N.V.
    Inventors: Hans Hällström, Susanne Gratz, Fredrik Solhage
  • Publication number: 20100038266
    Abstract: The invention relates to a packaging laminate comprising at least one base layer of paper or paper board and at least one liquid barrier layer, said paper or paper board comprising expanded or unexpanded expandable thermoplastic microspheres. The invention further relates to the production and use of a packaging laminate and a package for food or beverage products and its production.
    Type: Application
    Filed: November 29, 2007
    Publication date: February 18, 2010
    Inventors: Hans Hällström, Susanne Gratz, Fredrik Solhage
  • Patent number: 7442280
    Abstract: A process for the production of paper from a suspension containing cellulosic fibers, and optional fillers, which comprises adding to the suspension a drainage and retention aid comprising a cationic organic polymer, forming and dewatering the suspension on a wire, wherein the cationic organic polymer has an aromatic group and the suspension which is dewatered on the wire has a conductivity of at least 2.0 mS/cm.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: October 28, 2008
    Assignee: Akzo Nobel NV
    Inventors: Bore Klemets, Hans Hallstrom, Anna Asplund, Rein Sikkar
  • Patent number: 7306700
    Abstract: The present invention relates to a process for the production of paper from a suspension containing cellulosic fibres, and optional fillers, comprising adding to the suspension drainage and retention aids comprising a cationic organic polymer and anionic microparticulate material, forming and dewatering the suspension on a wire, wherein the cationic organic polymer has a non-aromatic hydrophobic group. The invention further relates to a cationic vinyl addition polymer comprising in polymerized form at least one non-cationic monomer having a non-aromatic hydrophobic group and at least one cationic monomer.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: December 11, 2007
    Assignee: Akzo Nobel NV
    Inventors: Hans Hällström, Rein Sikkar, Oliver Struck
  • Publication number: 20020139502
    Abstract: The present invention relates to process for the production of paper from a suspension containing cellulosic fibers, and optional fillers, comprising adding to the suspension drainage and retention aids comprising a cationic organic polymer and anionic microparticulate material, forming and dewatering the suspension on a wire, wherein the cationic organic polymer has a non-aromatic hydrophobic group. The invention further relates to a cationic vinyl addition polymer comprising in polymerized form at least one non-cationic monomer having a non-aromatic hydrophobic group and at least one cationic monomer.
    Type: Application
    Filed: March 11, 2002
    Publication date: October 3, 2002
    Inventors: Hans Hallstrom, Rein Sikkar, Oliver Struck
  • Patent number: 6165259
    Abstract: The invention relates to an aqueous dispersion containing a dispersant and a disperse phase containing a hydrophobic material, the dispersant comprising an anionic compound having a molecular weight less than 50,000 and being selected from the group consisting of carbon-containing compounds and silicon-containing compounds, and a cationic organic compound having a molecular weight less than 50,000. The invention further relates to the preparation and use of the dispersion in the production of paper. The invention also relates to a substantially water-free composition containing a hydrophobic material, an anionic compound having a molecular weight less than 50,000 and being selected from carbon-containing compounds and silicon-containing compounds, and a cationic organic compound having a molecular weight less than 50,000, as well as it use in the preparation of an aqueous dispersion.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: December 26, 2000
    Assignee: Akzo Nobel N.V.
    Inventors: Hans Hallstrom, Sten Frolich, Erik Lindgren, Rein Sikkar