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EP0502784A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Keratinous fibres dyeing process with isatin or derivatives thereof associated with a tri-, tetra- or pentasubstituted aniline or a bisphenylalkylenediamine and dyeing agents

Assignee: L'Oréal SA
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Filing: 1992-03-04
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Granted: —
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Expires: 2012-03-04
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Abstract

Abstract Translated from French L'invention concerne un procédé de teinture des fibres kératiniques, comprenant l'application simultanée ou séquentielle d'un composant (A) renfermant au moins un composé de formule (I): dans laquelle : R₁ désigne hydrogène, alkyle, acétyle, benzoyle, phényle ou carboxyalkyle en C₁-C₄; R₂ et R₃ désignent hydrogène, alkyle, alcoxy, hydroxyalkyle, amino, halogène, nitro, alkylphényle, phényle, alkylamino, hydroxyalkylamino; et un composant (B) renfermant au moins (i) un composé de formule (II) : dans laquelle : Y désigne OH ou NR₈R₉; R₈ et R₉, identiques ou différents, désignent hydrogène, aminoéthyle, hydroxyéthyle ou alkyle en C₁-C₄; R₄ à R₇, indépendamment l'un de l'autre, désignent un atome d'hydrogène, un alkyle en C₁-C₄, un chlore, un alcoxy en C₁-C₄, un acétylamino, un aryloxy, au plus deux des groupements R₄ à R₇ désignent un atome d'hydrogène, à l'exclusion du 2,5-diméthoxy 1,4-diaminobenzène; et les sels cosmétiquement acceptables; ou (ii) une bis-phénylalkylènediamine. The invention relates to a process for dyeing keratin fibers, comprising the simultaneous or sequential application of a component (A) containing at least one compound of formula (I): in which : R₁ denotes hydrogen, alkyl, acetyl, benzoyl, phenyl or C₁-C₄ carboxyalkyl; R₂ and R₃ denote hydrogen, alkyl, alkoxy, hydroxyalkyl, amino, halogen, nitro, alkylphenyl, phenyl, alkylamino, hydroxyalkylamino; and a component (B) containing at least (i) a compound of formula (II): in which : Y denotes OH or NR₈R₉; R₈ and R₉, identical or different, denote hydrogen, aminoethyl, hydroxyethyl or C₁-C₄ alkyl; R₄ to R₇, independently of one another, denote a hydrogen atom, a C₁-C₄ alkyl, a chlorine, a C₁-C₄ alkoxy, an acetylamino, an aryloxy, at most two of the groups R₄ to R₇ denote a hydrogen atom, excluding 2,5-dimethoxy 1,4-diaminobenzene; and cosmetically acceptable salts; or (ii) a bis-phenylalkylenediamine. Elle concerne également les agents de teinture pour sa mise en oeuvre. It also relates to dyeing agents for its implementation.

Inventors

  • 👤 Gérard Lang
  • 👤 Jean Cotteret

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 03:35
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/10; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4906; A61K8/4913; A61K8/492

Claims Analysis

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References Cited (Backward Citations)

FR2626771A1 Cited
EP0359465A2 Cited

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