Monoazo dyes, their preparation and use
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United States of America Patent
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Nov 14, 1995
Issued Date -
N/A
app pub date -
Feb 13, 1994
filing date -
Jan 22, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to valuable monoazo dyes of the general formula I ##STR1## in which R is methyl or ethyl, R.sup.1 is methyl, ethyl, methoxyethyl or ethoxyethyl, R.sup.2 is methyl or ethyl, if n is equal to 0, and hydrogen, if n is equal to 1, R.sup.3 is methyl, ethyl, n-propyl or i-propyl and n is 0 or 1, to mixtures of dyes of the general formula I and to the preparation of these dyes and their mixtures and to their use for the dyeing of hydrophobic fiber materials.
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