Patents Examined by Magaret Einsmann
  • Fiber reactive dyes - applications with low salt
    Patent number: 5330539
    Abstract: A method for the exhaust dyeing of materials having hydroxy groups and materials containing carbonamide groups using a low salt content dye bath in conjunction with fiber reactive dyes exemplified by a dye of the following formula: ##STR1##
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: July 19, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Thomas S. Phillips, Kevin D. Costa, Werner Russ, Thomas V. Chambers