Patents Assigned to L. Bruggemann Komm.-GES.
  • Flameproof compositions of polycondensation products
    Patent number: 5047459
    Abstract: A self-extinguishing thermoplastic composition containing at least one polycondensation product, and a flame retardant which comprises a mixture of melamine with at least one adduct of an isocyanate and a lactam wherein the proportion of adduct, based on the mixture of melamine and adduct, amounts to 5-25% by weight.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: September 10, 1991
    Assignee: L. Bruggemann Komm.-GES.
    Inventor: Gunther Walde