Patents Assigned to Wolff Walstrode AG
  • Coating system for materials which swell in water
    Patent number: 5352730
    Abstract: The present invention relates to a coating compound for sheets, films, or molded products composed of modified or unmodified polysaccharides.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: October 4, 1994
    Assignee: Wolff Walstrode AG
    Inventors: Erhard Luhmann, Burkhard Kressdorf, Lutz Hoppe, Klaus Szablikowski, Gunter Weber, Sebastian Meyer-Stork