MIXED CRYSTAL PIGMENTS OF THE QUINACRIDONE SERIES

New quinacridone mixed crystal pigments consisting of a) from 85 to 99% by weight of unsubstituted .beta.-phase quinacridone of th e formula (I) (See fig. I) in which R1 and R2 are hydrogen atoms and b) from 1 to 15% by weight of one or more substituted quinacridones of the f ormula (I) in which the...

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Hauptverfasser:	SCHNAITMANN, DIETER, URBAN, MANFRED, BOEHMER, MARTIN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES LAKES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	New quinacridone mixed crystal pigments consisting of a) from 85 to 99% by weight of unsubstituted .beta.-phase quinacridone of th e formula (I) (See fig. I) in which R1 and R2 are hydrogen atoms and b) from 1 to 15% by weight of one or more substituted quinacridones of the f ormula (I) in which the substituents R1 and R2 are identical or different and are c hlorine, bromine or fluorine atoms or C1-C4-alkyl, C1-C4-alkoxy or carboxamido groups which can be substituted by C1-C6-alkyl groups, and R1 may additionally be hydroge n, are valuable quinacridones in the red-violet range.