Quinolinemethine dyes
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United States of America Patent
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Jun 8, 1993
Grant Date -
N/A
app pub date -
Sep 16, 1991
filing date -
Oct 4, 1990
priority date (Note) -
Expired
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Abstract
Quinolinemethine dyes suitable for use in a thermal transfer process have the formula ##STR1## where R.sup.1 is fluorine, chlorine or bromine, R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.3 is hydrogen, fluorine, chlorine or bromine, and K is the radical of an aniline derivative.
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