Patents by Inventor Jacques A. N. Bernardin

Jacques A. N. Bernardin 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).

  • Water-insoluble azo dyestuffs which are derivatives of 1-aryl-3-trifluoromethyl-5-pyrazolones
    Patent number: 4212647
    Abstract: Water-insoluble azo dyestuffs corresponding to the formula: ##STR1## in which X represents halogen, cyano, nitro, alkyl, polyfluoroalkyl, polyfluoroalkoxy, alkylsulphonyl, sulphonamido, or sulphonamido substituted by one or two alkyl groups;Y and Z are the same or different and represent hydrogen, halogen, cyano, nitro, alkyl, alkoxy, polyfluoroalkyl, polyfluoroalkoxy, alkylsulphonyl, sulphonamido or sulphonamidosubstituted by one or two alkyl groups;R represents hydrogen, halogen, cyano, nitro, alkyl, alkoxy, polyfluoroalkyl, polyfluoroalkoxy, alkylsulphonyl, sulphonamido, or sulphonamido substituted by one or two alkyl groups;m is equal to 0 or 1;and the nucleus A may be substituted by one or more chlorine atoms or alkyl, alkoxy or acylamino groups.These dyestuffs may be used for dyeing synthetic or artificial textile fibers, especially polyester fibers.
    Type: Grant
    Filed: September 7, 1978
    Date of Patent: July 15, 1980
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Jacques A. N. Bernardin, Jacques P. E. Pechmeze