Agent and method for dyeing keratin fibers
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United States of America Patent
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Nov 6, 2007
Grant Date -
Jan 19, 2006
app pub date -
Feb 3, 2004
filing date -
Mar 5, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The object of the present patent application is an agent for coloring keratin fibers based on oxidative dyes and which contains as developer at least one heterocyclic hydrazone derivative of formula (I) (with X.dbd.S or O) and as oxidant at least one persulfate salt, further objects being a multicomponent kit and a method for coloring keratin fibers by use of said agent ##STR00001##
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