Henkel Kommanditgesellschaft Auf Aktien

Gunther Konrad

Edgar Lieske

David Rose

Norbert Maak

Hinrich Moller

Brigitte Hase

Peter Busch

Ulrich Zeidler

Hans-Christoph Wilk

This invention is directed to m-phenylenediamine derivatives and salts thereof and to compositions of the developer-coupler type of the dyeing of hair, consisting essentially of m-phenylenediamine derivatives or salts thereof as coupling components and, as developer components, conventional components used in oxidation dyes.

Oxidation hair dyes comprising m-phenylenediamine derivatives as

Diglycidyl-substituted pteridine compounds of the general formula: ##STR1## wherein n is the whole number 1 or 2, R.sub.2 and R.sub.2 are the same or different, and are either hydrogen, a hydrocarbon radical, or together form a 5- or 6-membered carbocyclic or heterocyclic ring; processes for their preparation; and compositions and methods for their use as cytostatic agents.

Diglycidyl-pteridine compounds

This invention is directed to compositions of the developer-coupler type for the dyeing of hair, consisting essentially of substituted benzotriazoles as coupling components and, as developer components, the conventional components used in oxidation dyes.

Oxidation hair dyes comprising substituted benzotriazoles

This invention is directed to novel bis-(2,4-diaminophenoxy)-alkanes and a method of preparing them. This invention is also directed to the use of said bis-(2-4-diaminophenoxy)-alkanes, or the salts thereof, as coupler components in developer-coupler oxidation hair dyeing compositions.

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Hilden, Germany

Gunther Konrad