Agents containing 4-(2-hydroxyethyl)amino-3-nitro-1-benzotrifluoride for dyeing keratin fibers
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United States of America Patent
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Issued Date -
Jan 11, 2007
app pub date -
Oct 19, 2004
filing date -
Jan 30, 2004
priority date (Note) -
Abandoned
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Abstract
The composition for coloring keratin fibers contains (a) 4-(2'-hydroxyethyl)amino-3-nitro-1-trifluoromethylbenzene or a salt thereof, (b) one or more developers and (c) one or more couplers. In the method for coloring hair the colorant composition is mixed with an oxidant to form a ready-to-apply colorant and then the ready-to-apply colorant is applied to hair in an amount sufficient for the dyeing of the hair.
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