Azo dyes

Details Azo dyes Azo dyes

C - Chemistry, Metallurgy

09

B

260/174.5, 260/1

C09B 29/08 (2006.01) C09B 29/01 (2006.01) D06P 1/04 (2006.01)

Patent

CA 1109863

ABSTRACT OF THE DISCLOSURE There are described new azo dyes of the formula Image wherein R1 is an optionally substituted alkyl group, R2 is a substituted aliphatic radical, unsubstituted C3-C10-alkyl or cycloalkyl, and R3 and R4 are alkyl groups; and mixtures thereof with analogous azo dyes in which R4 is H; and also the production and use of these new azo dyes and of the said mixtures thereof for dyeing and printing synthetic fibers, particularly polyester fibers.

299044

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