Hair dye compositions containing 2,3 dialkyl-4-aminophenol and a

Details Hair dye compositions containing 2,3 dialkyl-4-aminophenol and a Hair dye compositions containing 2,3 dialkyl-4-aminophenol and a

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.

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