2, 5-diaminobenzonitrile compounds and oxidation hair dye compos

Details 2, 5-diaminobenzonitrile compounds and oxidation hair dye compos 2, 5-diaminobenzonitrile compounds and oxidation hair dye compos

1997-03-17

1999-02-02

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

8407, 8408, 8411, 8412, 8416, 8603, 8649, 558418, A61K 713, C07C25550

Patent

active

058658564

ABSTRACT:
The oxidation hair dye composition is based on a combination of coupler substance and developer substance, and includes, as developer substance, at least one 2,5-diaminobenzonitrile compound of the formula (I), ##STR1## in which R.sup.1 and R.sup.2, independently of each other, are selected from the group consisting of H, alkyl groups having 1 to 6 carbon atoms, hydroxyalkyl groups having 2 to 4 carbon atoms and dihydroxyalkyl groups having 3 to 4 carbon atoms, with the proviso that both of the R.sup.1 and R.sup.2 groups are not both hydrogen at the same time, or a physiologically compatible water-soluble salt thereof. The invention also includes new 2,5-diaminobenzonitrile compounds of formula I.

REFERENCES:
patent: 5032138 (1991-07-01), Wolfram et al.
patent: 5139532 (1992-08-01), Chan et al.
patent: 5304014 (1994-04-01), Wenke
patent: 5609651 (1997-03-01), Mager et al.

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