Bleaching and dyeing; fluid treatment and chemical modification – Chemical modification of textiles or fibers or products thereof – Treating textiles or fibers from synthetic resin or natural...
Patent
1981-10-15
1984-09-11
Trousof, Natalie
Bleaching and dyeing; fluid treatment and chemical modification
Chemical modification of textiles or fibers or products thereof
Treating textiles or fibers from synthetic resin or natural...
8406, 8407, 8408, 8414, 564367, 564368, 564371, 564441, A61K 713, C07C 8760, C07C 9140, C07C 9314
Patent
active
044708262
ABSTRACT:
The invention provides novel nitro-paraphenylenediamine derivatives of the formula: ##STR1## in which R.sub.1 denotes an alkyl group, a monohydroxy- or polyhydroxy-alkyl group or an aminoalkyl group, the amino group of which is optionally monosubstituted or disubstituted by an alkyl group, and R.sub.2 denotes an alkyl group, or a cosmetically acceptable salt thereof. These derivatives are useful as direct dyes, especially for dyeing human hair.
REFERENCES:
patent: 2750326 (1956-06-01), Eckardt
patent: 2750327 (1956-06-01), Eckardt
patent: 3049393 (1962-08-01), Seemuller
patent: 3446567 (1969-05-01), Augustin et al.
patent: 3488138 (1970-01-01), Iscouitz
patent: 3560136 (1971-02-01), Kalopissis et al.
patent: 3591638 (1971-07-01), Halasz
patent: 3904690 (1975-09-01), Kalopissis et al.
patent: 3925424 (1975-12-01), Kalopissis et al.
Chemical Abstracts, vol. 24: 5985, (1930).
Bugaut Andre/e/
Cotteret Jean
"L'Oreal"
Clarke Vera C.
Trousof Natalie
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