Dicyclic metal complex formazan derivatives, process for producing the same, composition containing the same and dyeing process employing the same
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United States of America Patent
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Jan 12, 1999
Grant Date -
N/A
app pub date -
Dec 5, 1996
filing date -
Apr 8, 1995
priority date (Note) -
Expired
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Abstract
The invention relates to dicyclic metal complex formazan dye derivatives and processes for producing compositions and for using them in dyeing processes.
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