Copper complex monazo dyes and their preparation and use
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United States of America Patent
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Jun 13, 2006
Grant Date -
Apr 8, 2004
app pub date -
Sep 26, 2003
filing date -
Sep 26, 2002
priority date (Note) -
Expired
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Abstract
Copper complex monoazo dyes of general formula (V) ##STR00001## and of general formula (VI) ##STR00002## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and M are as described in the specification, are excellent magenta dyes for dyeing and printing of cellulose containing materials and textile materials and especially for the preparation of inks for ink jet printing.
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