COLORATI DISPERSI DERIVATI DALLA ISATINA

COLORATI DISPERSI DERIVATI DALLA ISATINA

Isatin derivative suitable as disperse dyes having the general formula: wherein the symbols have the following meanings: R represents an alkyl group having up to 5 carbon atoms, a -CH2-COOX group, wherein X stands for an alkyl group having up to 4 carbon atoms, a group, or a -CH2-CH2-CN group; and R...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BORNENGO GIORGIO, MERLO FABRIZIO
Format: Patent
Sprache:ita
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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Beschreibung
Zusammenfassung:Isatin derivative suitable as disperse dyes having the general formula: wherein the symbols have the following meanings: R represents an alkyl group having up to 5 carbon atoms, a -CH2-COOX group, wherein X stands for an alkyl group having up to 4 carbon atoms, a group, or a -CH2-CH2-CN group; and R1 represents a H atom, a halogen, preferably Cl or Br, or NO2; and the preparation thereof are described. The disperse dyes of the invention are particularly suited for the dyeing and printing of synthetic fibres, such as polyester fibres, in shades from yellow-green to orange. The dyes are obtained by condensation of 2-benzimidazolyl-acetonitrile with the corresponding isatinic derivative.