Patents by Inventor Werner Junemann

Werner Junemann 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).

  • Metal complex dyes containing azo azomethine groups
    Patent number: 4599402
    Abstract: The novel compounds of the general formula I ##STR1## where A is a radical of a coupling or diazo component which, if necessary after conversion, is capable of complex formation, Ar is an unsubstituted or substituted aromatic or heterocyclic radical, D is a radical of a diazo component and Me is a Co.sup.2+, Cu.sup.2+, Zn.sup.2+, Mn.sup.2+ or Ni.sup.2+ ion, and the ring B can be further substituted, are very useful for dyeing cellulose fibers, polyesters and blends of cellulose fibers and polyesters.The present dyes are lightfast and fast to washing and to solvents.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: July 8, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Johannes Dehnert, Werner Junemann