Agent and method for coloring keratin fibers containing...

Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing

Reexamination Certificate

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C008S426000, C008S437000, C008S454000, C008S455000, C008S575000, C548S146000, C552S293000

Reexamination Certificate

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07070625

ABSTRACT:
The objects of the present invention are an agent (A) for coloring fibers obtained by mixing two components (A1) and (A2), characterized in that component (A1) contains at least one 2-benzothiazolinone hydrazone derivative of formula (I) or a physiologically tolerated salt thereofand component (A2) contains at least one ortho-quinone of formula (II) or a para-quinone of formula (III),a method for coloring hair by use of said agent and a multicomponent kit for coloring hair.

REFERENCES:
patent: 3869454 (1975-03-01), Bugaut
patent: 5879411 (1999-03-01), Braun et al.
patent: 1 049 381 (1956-12-01), None
patent: 114 415 (1975-08-01), None
patent: 43 35 624 (1995-06-01), None
patent: 0 460 996 (1991-12-01), None
patent: 0 848 942 (1998-06-01), None
patent: 51019767 (1976-02-01), None
patent: 51019767 (1976-02-01), None
English abstract of the Japanese Patent No. 51019767 A dated Feb. 1976.
Espin J. C. et al: “Inhibition of Mushroom Polyphenol Oxidase . . . ” J. Agric. Food Chem., BD. 46, NR. 8, 1998 pp. 2976-2980.

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