Mixtures of 1-N-C.sub.3-7 alkyl-5-(4'-chloro-2'nitrophenylozo)-3-cyano-6-hydroxy-4-methylpyrid-2-one compounds
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United States of America Patent
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Nov 15, 1988
Grant Date -
N/A
app pub date -
Dec 27, 1982
filing date -
Dec 28, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Mixtures comprising at least two dyes of formula I ##STR1## where R is unsubstituted linear C.sub.3-7 alkyl, with the proviso that at least two different dyes of formula I are each present to the extent of at least 10 mole %, based on the total molar quantity of dyes present, which are useful for dyeing and printing synthetic and semi-synthetic high molecular weight, hydrophobic organic substrates, particularly for rapid dyeing.
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