Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1984-06-07
1989-09-05
Hollrah, Glennon H.
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8409, 8410, 8412, 8421, 564443, A61K 713, C07C 9140
Patent
active
048634808
ABSTRACT:
A new substituted metaaminophenol of formula (I): ##STR1## wherein Z represents a monohydroxylated or polyhydroxylated hydrocarbon radical of 1 to 6 carbon atoms or an aminoalkyl radical of the formula: ##STR2## wherein n is an integer from 1 to 6 and R.sub.1 and R.sub.2, which are identical or different, represent a hydrogen atom or an alkyl or hydroxyalkyl radical of 1 to 6 carbom atoms or an acyl radical of 1 to 4 carbon atoms, and R represents a hydrogen atom, an alkyl radical or monohydroxyalkyl or polyhydroxyalkyl, monocarbamylalkyl, dicarbamylalkyl, aminoalkyl, acyl, carbalkoxy, carbamyl or monoalkylcarbamyl radical, the abovementioned alkyl radicals containing 1 to 6 carbon atoms, or an acid salt thereof with the proviso that if R represents a hydrogen atom, Z cannot represent --CH.sub.2 CH.sub.2 OH is disclosed, together with a process for their preparation, hair-dyeing compositions containing them and a hair-dyeing process.
REFERENCES:
patent: 3834866 (1974-09-01), Pum
Bugaut Andree
Junino Alex
Hollrah Glennon H.
O'Sulllivan Peter G.
The French joint stock company "L'Oreal"
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