Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1997-11-19
1998-12-15
Lieberman, Paul
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8421, 8424, A61K 713
Patent
active
058490426
ABSTRACT:
A 2-Substituted-1-naphthol of the formula: ##STR1## wherein R.sub.3 is C.sub.1 -C.sub.6 alkyl or monohydroxy C.sub.1 -C.sub.6 alkyl couples with a primary intermediate of the formula: ##STR2## wherein R.sub.1 and R.sub.2 are each independently C.sub.1 -C.sub.6 alkyl to produce an oxidative dye.
REFERENCES:
patent: 4023926 (1977-05-01), Bugant et al.
patent: 4692166 (1987-09-01), Junino et al.
patent: 4865619 (1989-09-01), Junino et al.
patent: 5279620 (1994-01-01), Junino et al.
patent: 5344464 (1994-09-01), Madrange et al.
Lim Mu'Ill
Pan Yuh-Guo
Bristol-Myers Squibb
Lieberman Paul
Liott Caroline D.
Simon Morton S.
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