Patents by Inventor Peter Adermann

Peter Adermann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Polypentabromostyrene, process for the production and use
    Patent number: 4394484
    Abstract: Polypentabromostyrene with a bromine content of 76% to 80%, which is plastic at a temperature of 280.degree. C. and is thermally decomposed at a temperature of about 400.degree. C., can be produced by reacting pentabromophenylethyl bromide with an alkali metal hydroxide or carbonate in an alcoholic solvent and subsequently by catalytically initiating polymerization. The polypentabromostyrene is useful as a flame retardant for thermoplastic synthetic resins.
    Type: Grant
    Filed: July 7, 1981
    Date of Patent: July 19, 1983
    Assignee: Chemische Fabrik Kalk GmbH
    Inventors: Herbert Jenkner, Robert Strang, Peter Adermann