Halopolyester Patents (Class 8/923)
  • Process for dyeing polyester and polyester-containing textile materials
    Patent number: 5425785
    Abstract: The present invention relates to a process for dyeing polyester or polyester-containing textile materials at pH 8 to pH 11 with one or more monoazo dyestuffs of the general formula I ##STR1## in which A, R and X.sup.1 to X.sup.3 are as defined in claim 1.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: June 20, 1995
    Assignee: Hoechst Mitsubishi Kasei Co.
    Inventors: Ulrich Buhler, Ralf Zerrer