Patents Assigned to Ahlstrom GmbH
  • Aqueous adhesive dispersions and the use thereof in the production of multi-layered paper
    Patent number: 6706145
    Abstract: An aqueous adhesive dispersion comprising an adhesive polymer in dispersed form, an anionic or cationic polyelectrolyte, and optionally at least one polyalkylene glycol having a molar mass of 200 to 100,000 g/mol, and other additives; and a process for producing multilayered paper or a material using the aqueous adhesive dispersion.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: March 16, 2004
    Assignee: Ahlstrom GmbH
    Inventors: Joachim Werres, Bernd Reinhardt, Klaus Rienaecker