N-alkylhydroxylated secondary para-phenylenediamine...

Details N-alkylhydroxylated secondary para-phenylenediamine... N-alkylhydroxylated secondary para-phenylenediamine...

2005-02-28

2008-10-14

Elhilo, Eisa B (Department: 1796)

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

C008S406000, C008S407000, C008S408000, C008S410000, C008S415000, C008S421000, C564S388000, C564S389000

Reexamination Certificate

active

07435268

ABSTRACT:
The present disclosure relates to novel N-alkylhydroxylated secondary para-phenylenediamines and a process for making these compounds. The present disclosure further relates to a composition for dyeing keratin fibers, including human keratin fibers such as hair, containing, in a medium that is suitable for dyeing, at least one such N-alkylhydroxylated secondary para-phenylenediamine, a process for dyeing keratin fibers using the composition, and a device or kit for dyeing keratin fibers that contains the composition.

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