Patents by Inventor Charles D. Ver Nooy, III

Charles D. Ver Nooy, III 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).

  • Cold water-soluble acid dye composition derived from the standardization of mono- and disazo acid dyes with an ammonium lignin sulfonate
    Patent number: 4153414
    Abstract: Cold water-soluble dye compositions consisting essentially of from 20-70% by weight of a sparingly soluble sulfonated, mono- or disazo acid dye, substantially in the form of its alkali metal salt, and from 80-30% by weight of an ammonium lignin sulfonate. The ammonium lignin sulfonate is used as a standardizing agent to adjust the strength of the concentrated acid dye to a level suitable for use in commercial dyeing and printing operations and to provide cold water solubility adequate for dyeing at ambient temperatures.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: May 8, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Charles D. Ver Nooy, III, Armand P. Zinnato