Hair-dyeing preparations

Details Hair-dyeing preparations Hair-dyeing preparations

1988-08-26

1990-02-13

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8409, 8410, 8416, 8423, A61K 713

Patent

active

049003259

ABSTRACT:
Hair-dyeing compositions containing oxidation dye precursors and a carrier contain coupler components corresponding to the formula: ##STR1## wherein R.sup.1 is selected from the group consisting of hydrogen, a C.sub.1 -C.sub.4 alkyl group or a halogen atom; R.sup.2 and R.sup.3 independently of one another are selected from the group consisting of hydrogen, C.sub.1 -C.sub.4 alkyl groups or C.sub.2 -C.sub.4 hydroxyalkyl groups, or together with the nitrogen atom, form a morpholine, piperidine, pyrrolidine or piperazine ring; and R.sup.4 is selected from the group consisting of hydrogen or a --NR.sup.2 R.sup.3 group; or salts thereof. The composition also contains typical developer components. The compounds are particularly suitable as red couplers for developers of the 2,4,5,6-tetraaminopyrimidine type, including derivatives thereof.

REFERENCES:
patent: 4200432 (1980-04-01), Kalopissis et al.
Chemical Society, "Journal of the Chemical Society", 1948, London.
Kirk-Othmer; Encyclopedia of Chemical Technology, Third Edition, Volume 12, pp. 101-105.
Kirk-Othmer; Encyclopedia of Chemical Technology, vol. 8, p. 199.

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