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EP0039030A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Coupler components for oxidative hair dyes, their preparation and their use, and hair dyeing compositions containing them

Assignee: Henkel AG and Co KGaA
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Filing: 1981-04-18
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Granted: —
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Expires: 2001-04-18
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Abstract

Abstract 1. Claims for the Contracting States : BE, CH, DE, FR, GB, IT, LI, LU, NL, SE Chlormethyl-m-aminophenols corresponding to the following general formula see diagramm : EP0039030,P6,F2 in which X and Y represent a chlorine atom, with the proviso that, when X is a chlorine atom, Y is a methyl radical and, when X is a methyl radical, Y is a chlorine atom. 1. Claims for the Contracting State : AT A process for the production of chloromethyl-m-aminophenols corresponding to the following general formula see diagramm : EP0039030,P7,F1 in which X and Y represent a chlorine atom or a methyl radical, with the proviso that, when X is a chlorine atom, Y is a methyl radical and, when X is a methyl radical, Y is a chlorine atom, characterized in that corresponding chloromethyl-m-nitrophenols are catalytically hydrogenated in known manner in the presence of Raney nickel.

Inventors

  • 👤 David Dr. Rose
  • 👤 Norbert Dr. Maak

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 12:07
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/415; A61Q; A61Q5/00; A61Q5/10

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE1543808A1 Cited
DE1939063A1 Cited
FR2233982A1 Cited
DE2429780A1 Cited
DE2509096A1 Cited
FR2302725A1 Cited
DE2628716A1 Cited
FR2315255A1 Cited

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