Composition for dyeing keratin fibers which contain at least one diaminopyrazole, dyeing process, novel diaminopyrazoles and process for their preparation
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United States of America Patent
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Jan 15, 2002
Issued Date -
N/A
app pub date -
Jan 31, 2000
filing date -
May 5, 1995
priority date (Note) -
Expired
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Abstract
The invention relates to novel compositions for the oxidation dyeing of keratin fibers, comprising at least one specific diaminopyrazole derivative, to the dyeing process using this composition, to novel diaminopyrazole derivatives and to a process for their preparation.
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