C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
260/174, 8/27, 2
C09B 29/08 (2006.01) D06P 1/04 (2006.01)
Patent
CA 1242190
ABSTRACT OF THE DISCLOSURE There are described new monoazo dyes of the formula Image in which X is hydrogen, chlorine, bromine or cyano, R is an unsubstituted or substituted alkyl group having 1 to 4 carbon atoms, R1 is an alkyl group which has 1 to 4 carbon atoms and which is unsubstituted or substituted by lower alkoxy, aryloxy or aryl, or it is an unsubstituted or substituted phenyl group, R2 is an alkyl group which has 1 to 4 carbon atoms and which is unsubstituted or substituted by hydroxyl, acyloxy, lower alkylsulfonyloxy, aryl, halogen, aryloxy or a hetero ring, or it is an unsubstituted or substituted cycloalkyl group, and Y is a lower alkyl or lower alkoxy with the proviso that R1 must not be an unsubstituted alkyl group if R is methyl, X is chlorine, bromine or cyano and Y is an unsubstituted alkyl group; and also processes for producing them and their use for dyeing and printing hydrophobic materials.
316855
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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