Mass-coloration process for polyester resins

The invention comprises dyes of the formula wherein the radical R is attached at the carbon atoms of a cyclic group present in R which represents a 5- or 6-membered nitrogen-containing heterocyclic ring containing the said group, which ring may form part of a fused ring system and may be substitut...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WHITE DAVID FREDERICK, WILKINSON DONALD GRAHAM, COOPER ALBERT CHARLES
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES HETEROCYCLIC COMPOUNDS LAKES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC CHEMISTRY 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:	The invention comprises dyes of the formula wherein the radical R is attached at the carbon atoms of a cyclic group present in R which represents a 5- or 6-membered nitrogen-containing heterocyclic ring containing the said group, which ring may form part of a fused ring system and may be substituted by chlorine, bromine, methyl, methoxy and -COOY and the benzene ring A may be substituted by chlorine, bromine, nitro or -COOY where Y is hydrogen, alkyl, hydroxyalkyl, alkoxyalkyl or hydroxyalkoxyalkyl, provided that the dyestuffs contain at least one -COOY group. The dyes are made by condensing R-CH3 with an anhydride of the formula the reactants being chosen so that the product contains a -COOY group or, when Y is other than hydrogen, by esterifying a dye containing a -COOH group. The dyes dye synthetic linear polyesters in yellow shades.