Patents Assigned to Wolfe Walsrode AG
  • Method for modifying products or half-stuffs from molding materials consisting of mixtures of thermoplastic synthetic materials
    Patent number: 6251968
    Abstract: The present invention relates to a method for modifying articles and/or semi-finished products made from polymer resin moulding compositions, wherein said articles and/or semi-finished products, which substantially consist of moulding compositions comprising mixtures of thermoplastic polymers where exhibit good biodegradability and thermoplastic polymers which exhibit poor biodegradability, are subjected to biodegradation.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: June 26, 2001
    Assignee: Wolfe Walsrode AG
    Inventors: Ralf Schledjewski, Dirk Schultze, Gunter Weber, Rainhard Koch