Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Publication of NL6713945ApublicationCriticalpatent/NL6713945A/xx
C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
C09B43/00—Preparation of azo dyes from other azo compounds
C09B43/40—Preparation of azo dyes from other azo compounds by substituting hetero atoms by radicals containing other hetero atoms
C09B43/42—Preparation of azo dyes from other azo compounds by substituting hetero atoms by radicals containing other hetero atoms by substituting radicals containing hetero atoms for —CN radicals