Surface coatings pigmented with a 1-(dichloro-4'-sulfamoyl or substituted sulfamoyl-phenylazo-2-hydroxy-3-phenylcarbamoyl or substituted phenylcarbamoyl-naphthalene
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United States of America Patent
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Nov 18, 1986
Issued Date -
N/A
app pub date -
Oct 10, 1984
filing date -
Aug 28, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Compounds of the formula I ##STR1## in which each R.sub.1, independently, is hydrogen, C.sub.1-8 alkyl, C.sub.2-3 alkyl substituted by one or two substituents selected from the group consisting of halo, hydroxy, cyano, methoxy, ethoxy and (C.sub.1-2 alkoxy)carbonyl or cyclohexyl, and each R.sub.2 and R.sub.3, independently, is hydrogen, chlorine, bromine, methyl, methoxy or ethoxy, their production and use as pigments for the mass pigmentation of, for example, viscose, surface coatings such as oil and water base paints and lacquers and inks, pigment printing, textile coating and pigmenting paper in the mass.
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