Hair colorants
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United States of America Patent
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Issued Date -
Sep 22, 2005
app pub date -
Jan 7, 2005
filing date -
Jan 10, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The hair-coloring compositions described comprise one or more anthraquinone compounds of the formula I 1 where R.sup.1, R.sup.2 and R.sup.3 each independently represent hydrogen, linear or branched alkyl having 1 to 22 carbon atoms, linear or branched alkenyl having 2 to 22 carbon atoms or N(R.sup.4)C(O)R.sup.5; R.sup.4 and R.sup.5 independently represent hydrogen or alkyl having 1 to 22 carbon atoms; X represents SO.sub.3A.sup.1 or OCH.sub.2CH.sub.2(OCH.sub.2CH.sub.-2).sub.xOCH.sub.3; Y is H or SO.sub.3A.sup.2; A.sup.1 and A.sup.2 each independently represent H.sup.+, Li.sup.+, Na.sup.+, K.sup.+, Mg.sup.2+/2, Ca.sup.2+/2, Al.sup.3+/3 or .sup.+NR.sup.6R.sup.7R.sup.8R.su-p.9; R.sup.6, R.sup.7, R.sup.8, R.sup.9 each independently represent hydrogen, alkyl having 1 to 22 carbon atoms or hydroxyalkyl having 2 to 10 carbon atoms, and x represents a number from 0 to 10; wherein the compounds of the formula I comprise exactly one group selected from SO.sub.3A.sup.1 and SO.sub.3A.sup.2.
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