Patents by Inventor Max Bracher

Max Bracher 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).

  • 1,3-Diamino-4-(2',2',2',-trifluoroethoxy)-benzene, method of producing the same, and hair coloring composition containing the same
    Patent number: 4543425
    Abstract: 1,3-diamino-4-(2',2',2'-trifluoroethoxy)-benzene, as well as its acid addition salts, are used as new compounds to serve as coupler substance in hair dyeing compositions and yields with known developer substances 1,4-diaminobenzene and 2,5-diaminobenzylalcohol to stable blue tones without any red fraction. Moreover, the new compounds lead to exceptional black tones and ash tones.
    Type: Grant
    Filed: August 5, 1983
    Date of Patent: September 24, 1985
    Assignee: Wella AG
    Inventors: Eugen Konrad, Hans J. Braun, Herbert Mager, Friedrich Noser, Max Bracher