Compositions for dyeing keratinous fibres comprising a levelling agent, use and method
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United States of America Patent
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Issued Date -
Oct 27, 2005
app pub date -
Jun 6, 2005
filing date -
Feb 28, 2002
priority date (Note) -
Abandoned
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Abstract
New dyeing compositions, containing improved levelling agents, for dyeing of keratinous fibres, especially human hair, making more uniform the colour of the dyed fibres, are provided. The compositions contain one or more compounds of the formulae (I) and/or (II), wherein R is an alkyl group or alkenyl group having 6 to 24 carbon atoms; R', R' and R'' are independently a hydrogen atom or an alkyl group having 1 to 5 carbon atoms which is optionally hydroxylated; m has a value in the range of 4 to 10; n has a value in the range of 0 to 10; and p has a value in the range of 1 to 10, with the proviso that when p=1, at least one of R', R' and R'' is not a hydrogen atom. 1
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