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EP0054904A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Water-insoluble monoazo dyestuffs, their preparation and use

Assignee: Sanofi Aventis Deutschland GmbH
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Filing: 1981-12-16
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Granted: —
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Expires: 2001-12-16
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Abstract

Abstract Translated from German Azofarbstoffe der Formel <IMAGE> in der A und A' unabhängig voneinander lineare oder verzweigte Alkylenreste mit 2 bis 6 C-Atomen, R Wasserstoff, Alkyl mit 1 bis 4 C-Atomen, Cycloalkyl mit 5 oder 6 C-Atomen, Alkenyl mit 3 bis 5 C-Atomen, Phenyl, substituiertes Phenyl, Benzyl, Phenethyl, Alkylcarbonyl mit 1 bis 4 C-Atomen oder Benzoyl bedeuten und m die Werte 1 bis 5 und n die Werte 0 bis 1 annehmen kann, ihre Herstellung durch Diazotierung von Aminen der Formel II <IMAGE> und Kupplung auf β-Naphthol, sowie ihre Verwendung zum Färben und Bedrucken von hydrophoben Fasermaterialien. Azo dyes of the formula <IMAGE> in which A and A 'independently of one another are linear or branched alkylene radicals having 2 to 6 C atoms, R hydrogen, alkyl having 1 to 4 C atoms, cycloalkyl having 5 or 6 C atoms, alkenyl having 3 up to 5 carbon atoms, phenyl, substituted phenyl, benzyl, phenethyl, alkylcarbonyl with 1 to 4 carbon atoms or benzoyl and m the values 1 to 5 and n can take the values 0 to 1, their preparation by diazotization of amines Formula II <IMAGE> and coupling on β-naphthol, as well as their use for dyeing and printing hydrophobic fiber materials.

Inventors

  • 👤 Ulrich Dr. Bühler
  • 👤 Klaus Dr. Kühlein
  • 👤 Horst Dr. Tappe
  • 👤 Maria Kallay
  • 👤 Uwe Kosubek
  • 👤 Rudolf Dr. Löwenfeld

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-25 15:02
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/10; C09B29/103; C09B29/0003; C09B69/00

Claims Analysis

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References Cited (Backward Citations)

US2283326A Cited
DE1089094B Cited
FR2013809A1 Cited
DE1793039A1 Cited

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