PROCESS FOR THE PREPARATION OF PURE ORGANIC PIGMENTS

A process for preparing very pure copper phthalocyanine pigments of the alpha -modification, wherein substituted or unsubstituted copper phthalocyanines having different degrees of purity are converted into copper phthalocyanine salts capable of being isolated, with the aid of suitable acids which d...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SCHIESSLER S, TRONICH W, SPIETSCHKA E
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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