EP0400330B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Oxidation hair dyes
Assignee: Procter and Gamble Deutschland GmbH
•
Filing: 1990-04-27
•
Granted: 1993-03-10
•
Expires: 2010-04-27
Abstract
No abstract record available.
Inventors
- 👤 Herbert Dr. Mager
- 👤 Hans-Jürgen Dr. Braun
- 👤 Robert Dr. Rau
- 👤 Thomas Dr. Clausen
- 👤 Eugen Konrad
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 08:44
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/411; A61Q; A61Q5/00; A61Q5/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
55 words
Agent for the oxidative colouring of hair with h a content of a developer substance-coupler substance combination, characterized in that it contains as developer substance 2-(2,5-diaminophenyl)ethanol or a physiologically-compatible, water-soluble salt thereof, and in that the coupler substance is selected from resorcinol, 2-methyl-resorcinol , 4-chlororesorcinol, 3,4-methylenedioxyphenol, 3-aminophenol and N-(2-hydroxyethyl)-3,4-methylenedioxyaniline or physiologically compatible water-soluble salts thereof.
Claim 2
Dependent Claim
55 words
Agent for the oxidative colouring of hair with h a content of a developer substance-coupler substance combination, characterized in that it contains as developer substance 2-(2,5-diaminophenyl)ethanol or a physiologically-compatible, water-soluble salt thereof, and in that the coupler substance is selected from resorcinol, 2-methyl-resorcinol , 4-chlororesorcinol, 3,4-methylenedioxyphenol, 3-aminophenol and N-(2-hydroxyethyl)-3,4-methylenedioxyaniline or physiologically compatible water-soluble salts thereof.
Claim 3
Dependent Claim
19 words
Agent according to claim 1, characterised in that the coupler substance is selected from resorcinol, 4-chlororesorcinol, 2-methylresorcinol and 3-aminophenol
Claim 4
Dependent Claim
33 words
Agent according to claim 1 or 2, characterised in that the developer substance/coupler substance-combination is present in an amount of 0.01 to 8.0 % by weight, preferably 0.5 to 6.0 % by weight.
Claim 5
Dependent Claim
25 words
Agent according to any one of claims 1 to 3, characterised in that it contains a colouring component, which is selected from 4-(N-ethyl,N-2'-hydroxyethyl)amino-1-(2"-hydroxyethyl)-amino-2-nitrobenzene and 1-(2'-ureidoethyl-amino)-4-nitrobenzene.
Claim 6
Dependent Claim
24 words
Agent according to any one of claims 1 to 4, characterised in that it contains ascorbic acid, thioglycolic acid or sodium sulphite as antioxidants.
Claim 7
Dependent Claim
21 words
Agent according to any one of claims 1 to 5, characterised in that it has a pH of 8.0 to 11.0.
Claim 8
Dependent Claim
21 words
The use of an agent according to any one of claims 1 to 6 for colouring the hair of para-allergic persons.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.