Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1999-02-15
2000-10-17
Liott, Caroline D.
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8407, 8410, 8411, 8412, 8416, 8423, 8574, 8575, 8577, 540 1, 548561, 548577, 549 74, 549491, 549505, A61K 713, C07D20730, C07D30734, C07D33302, C07D34500
Patent
active
061324752
ABSTRACT:
New p-diaminobenzene derivative compounds of the formula (I): ##STR1## and physiologically compatible water soluble salts thereof are described, wherein X represents oxygen, sulfur, selenium or N-R9. Compositions for dyeing keratin fibers including a combination of coupler and developer substance are described, in which the developer substance includes at least one of the new p-diaminobenzene derivative compounds.
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patent: 5851237 (1998-12-01), Anderson et al.
patent: 5876464 (1999-03-01), Lim et al.
patent: 5993491 (1999-11-01), Lim et al.
Braun Hans-Juergen
Chassot Laurent
Liott Caroline D.
Striker Michael J.
Wella Aktiengesellschaft
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