Patents Assigned to Deutsche Gold -und Silber-Scheidearstalt vormals Roessler
  • Polyoxymethylene molding composition containing melamine formaldehyde polycondensate
    Patent number: 4230606
    Abstract: In a molding composition comprising a polyoxymethylene, a melamine formaldehyde polycondensate and an antioxidation agent, the improvement wherein said melamine formaldehyde polycondensate is a finely divided, cross-linked, substantially water insoluble polycondensate comprising the precipitation product obtained by reacting formaldehyde and melamine in a molar ratio between 1.2:1 and 10.0:1, and wherein said polycondensate is in an amount of about 0.001 to about 30 percent by weight, related to the total weight of said composition.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: October 28, 1980
    Assignee: Deutsche Gold -und Silber-Scheidearstalt vormals Roessler
    Inventors: Herbert Amann, Gerhard Morlock