Patents by Inventor Georges Metzer

Georges Metzer 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).

  • Semicarbazides and the use thereof for stabilizing polyamide fibre materials and the dyeings produced thereon
    Patent number: 5294735
    Abstract: Novel semicarbazides of the formula ##STR1## wherein R.sub.1 and R.sub.2, each independently of the other, are hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.5 alkenyl, C.sub.1 -C.sub.5 alkoxy or phenyl, or R.sub.1 and R.sub.2, together with the linking nitrogen atom, form a morpholine or piperazine radical, p is 0 or 1, and Q depends on the value of p as described herein. The novel compounds, which are water-soluble in aqueous application systems, have fibre affinity and are suitable for the photochemical and thermal stabilization of polyamide fibre materials and the dyeings produced thereon.
    Type: Grant
    Filed: February 20, 1992
    Date of Patent: March 15, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Jurgen Kaschig, Gerhard Reinert, Georges Metzer