AN IMPROVED PROCESS FOR MAKING AZO PIGMENTS

In a process for preparing azo pigments by the azo coupling reaction of a diazo component with the equivalent amount of a coupling component which is sparingly soluble under acid and neutral pH conditions below 65 DEG C, an acid solution of the diazo component is continuously mixed with the alkaline...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HEINRICH REHBERG, HARTMUT BEHRINGER
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES LAKES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS POLISHES
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