Patents Represented by Attorney, Agent or Law Firm Denise Brown
  • Stabilized, finely disperse low-viscosity polymer polyols with a high content of polystyrene or polystyrene copolymers
    Patent number: 6472447
    Abstract: The present invention relates to finely dispersed, low-viscosity polymer polyols which are stabilized in a novel manner and which are characterized by a high content of polystyrene or polystyrene copolymers. This invention also relates to the preparation of such polymer polyols, and their use for the preparation of polyurethane materials.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: October 29, 2002
    Inventors: Klaus Lorenz, Manfred Dietrich, Michael Brockelt, Uwe Scholz, Robert-Joseph Kumpf, Jürgen Grönen, Gundolf Jacobs