Jean-Jacques Vandenbossche

Dyeing composition containing oxidation dyes precursors and aminoindole derivatives as coupling agent

Keratinic fibre dyeing compostions containing oxydation dye precursors and derivatives of 4-hydroxyindole as couplers, and dyeing process using same

Metaphenylenediamines and dyeing compositions containing the same

secondary N-alkylepolyhydroxilated p-phenylendiamines, dye composition comprising them, processes and uses

N-alkylpolyhydroxylated secondary para-phenylenediamines, dye compositions comprising them, processes, and uses thereof

Meta-phenylenediamines, dyeing compositions in which they are present and the corresponding dyeing process

Use, as a coupler, of 2,4-diamino-1,3-dimethoxybenzene or one of its salts, in combination with oxidation dye precursors, for dyeing human hair, hair dyeing composition containing the said coupler and process for preparing the said coupler

Meta-phenylene di:amine derivs. - useful as couplers in dyeing compsns for keratinic fibres, hair, fur etc., giving light wash and weather-fast shades

New hydroxy-indole cpds. - used for dyeing hair and other keratinous materials, to increase range of shades available

Chlorometaphenylenediamines, their use as coupling agents in oxydation colouring of keratinic fibres, colourity compositions for hair containing these compounds and colouring process using these compositions