Use of 1-substituted isatins to dye fibers containing keratin

US6203579A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Hinrich Moeller · Monheim, DE
• Horst Hoeffkes · Goldkronach, DE
• Bernd Meinigke · Leverkusen, DE
• David Rose · Hilden, DE

Key dates

• Filing date: Oct 22, 1999
• Grant date: Mar 20, 2001
• Expiry date: Oct 22, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K8/492
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A colorant composition for coloring keratin-containing fibers is disclosed having (a) at least one isatin derivative corresponding to the formula I: ##STR1## where R.sup.1 and R.sup.2 independently of one another represent a hydrogen atom, a halogen atom, a hydroxy group, a (C.sub.1-4)-alkyl, hydroxy-(C.sub.1-4)-alkyl, tertiary amino-(C.sub.1-4)-alkyl, (C.sub.1-4)-alkoxy group, an amino group optionally substituted by one or two (C.sub.1-4)-alkyl or hydroxy-(C.sub.1-4)-alkyl groups, a nitro, carboxy, or sulfo group, and Y is a hydroxy group, a (C.sub.1-4)-alkoxy group or an amino group which may be substituted by (C.sub.1-4)-alkyl, (C.sub.1-4)-alkoxy-(C.sub.1-4)-alkyl, carboxy-(C.sub.1-4)-alkyl, sulfo-(C.sub.1-4)-alkyl or hydroxy-(C.sub.1-4)-alkyl groups or which may be part of a heterocyclic 5-, 6- or 7-membered ring, or physiologically compatible salts thereof, and (b) at least one compound containing a primary or secondary amino group or hydroxy group selected from the group consisting of primary or secondary aliphatic or aromatic amines, nitrogen-containing heterocyclic compounds, amino acids, oligopeptides made up of 2 to 9 amino acids, aromatic hydroxy compounds, and CH-activ…