Patents by Inventor Hans Werner Eckert

Hans Werner Eckert 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).

  • Adducts of epoxy compounds and products of reaction of .epsilon.-caprolactam with N-alkylalkylenediamine and methods of preparation
    Patent number: 3945996
    Abstract: A process for producing an addition product of an epoxy compound with a reaction product of .epsilon.-caprolactam and an N-alkylalkylene diamine, as well as the addition product produced by the process. The process of using these addition products is to prevent the growth of microorganisms in industrial water, by incorporating into said industrial water an antimicrobially effective amount of said addition product, and optionally incorporating into said industrial water a sequestering agent comprising a water-soluble phosphonic acid which forms a complex with a divalent metal, a water-soluble salt of the acid and the mixtures thereof, with the weight ratio of sequestering agent to addition product being 1:10 to 10:1.
    Type: Grant
    Filed: September 18, 1974
    Date of Patent: March 23, 1976
    Assignee: Henkel & Cie GmbH
    Inventors: Jens Conrad, Hans Werner Eckert, Ferdi Saygin, Harald Schnegelberger