Patents by Inventor Andreas v.d. Eltz

Andreas v.d. Eltz 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).

  • Reactive dyes which contain a triazinyl group linked to a substituted alkyl group and an amino group which contains a vinylsulfone-type reactive radical
    Patent number: 5280110
    Abstract: Water-soluble dyes, such as, for example, azo dyes, heavy metal complex azo dyes, anthraquinone, phthalocyanine and formazan dyes containing the group of the formula ##STR1## are described, in which R.sup.x is hydrogen or substituted or unsubstituted lower alkyl, U is hydrogen, cyano, lower alkanoyl, lower alkoxycarbonyl, nitro, lower alkylsulfonyl or substituted or unsubstituted arylsulfonyl, V is cyano, lower alkoxycarbonyl, substituted or unsubstituted aryloxycarbonyl, carboxy, lower alkylaminocarbonyl, substituted or unsubstituted arylaminocarbonyl, lower alkylcarbonyl, substituted or unsubstituted arylcarbonyl or arylsulfonyl, aminocarbonyl, dialkylaminocarbonyl, trifluoromethyl, nitro or lower alkylsulfonyl and Q is an amino group which is mono- or disubstituted by the radical --W--(SO.sub.2 --Y).sub.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: January 18, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Jorg Dannheim, Andreas v.d. Eltz