Patents by Inventor Eberhard Luecke

Eberhard Luecke 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).

  • Production of cationic condensation products
    Patent number: 4000184
    Abstract: Condensation products are prepared from carboxamides, formaldehyde, dicyandiamide and ammonium and/or amine salts in a single process step. After the end of the exothermic reaction the reaction mixture is heated for from 30 minutes to 5 hours at a temperature of from 70.degree. to 100.degree. C.
    Type: Grant
    Filed: January 8, 1975
    Date of Patent: December 28, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Alfred Kerbeck, Eberhard Luecke, Erich Renauer, Guenter Reuss