Patents by Inventor Hurbert Kruse

Hurbert Kruse 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).

  • Use of oxyalkylated novolaks as preparation agents for disperse dyestuffs and preparations made with said agents
    Patent number: 4420310
    Abstract: Watersoluble oxalkylated novolaks of the formula ##STR1## wherein R.sup.1 is alkyl of 1 to 18 carbon atoms, R.sup.2 is hydrogen or R.sup.1, X is ethylene or propylene, m is 6 to 100 and n is 1 to 12, are preparation agents for disperse dyestuffs. Disperse dystuff preparations containing these compounds have a stable and uniform distribution of the dyestuff particles, even with high dyestuff concentrations, and show good dyeing properties, low or no foam in dyebaths and useful viscosities in printing pastes.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: December 13, 1983
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Konrad Opitz, Max Grossmann, Hurbert Kruse, Manfred Schneider, Heinz Uhrig