Patents Assigned to Bayer Aakatiengesellschaft
  • Reactive phthalocyanine dyestuffs
    Patent number: 5070193
    Abstract: Novel reactive dyestuffs of the formula ##STR1## having the substituent meanings specified in the description are highly suitable for dyeing and printing hydroxyl- and amido-containing textile materials. They produce very fast dyeings and prints in high yields.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: December 3, 1991
    Assignee: Bayer Aakatiengesellschaft
    Inventors: Karl H. Schundehutte, Manfred Groll, Josef W. Stawitz