Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1989-02-28
1992-01-28
Willis, Jr., Prince
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8423, 8405, 8406, 8424, 564442, 564443, A61K 713, C07C21100, C07C21500
Patent
active
050840673
ABSTRACT:
3-Substituted para-aminophenols of general formula: ##STR1## where X.dbd.H, halogen; Y.dbd.O--, --S--; R.dbd.alkyl, hydroxyalkyl, C.sub.1-4 aminoalkyl or C.sub.3 -C.sub.6 polyhydroxyalkyl;
REFERENCES:
patent: 3893803 (1975-07-01), Kaiser
patent: 3957424 (1976-05-01), Zeffren et al.
patent: 4169704 (1979-10-01), Fakhouri
patent: 4473374 (1984-09-01), Bagaut et al.
patent: 4662892 (1987-05-01), Pike
patent: 4865618 (1989-09-01), Junino et al.
French Search Report of Nov. 15, 1988.
Focella et al.; "The Synthesis of Two Phenacetin Metabolites", Canadian Journal of Chemistry, vol. 50, 1972.
Genet Alain
Junino Alex
Lang Gerard
"L'Oreal"
Silbermann J.
Willis Jr. Prince
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