Concentrated aqueous solutions of anionic disazo dyes

Details Concentrated aqueous solutions of anionic disazo dyes Concentrated aqueous solutions of anionic disazo dyes

C - Chemistry, Metallurgy

09

B

C09B 67/10 (2006.01) C09B 67/26 (2006.01) C09B 69/04 (2006.01)

Patent

CA 2052634

Concentrated aqueous solutions of anionic disazo dyes, comprising salts of anionic dyes of the formula (see formula 1) with polyglycol amines of the formula (see formula 2) in which X and Y, independently of one another, are each hydrogen, alkyl or alkoxy, R is hydrogen or aryl, Z is alkyl, alkoxy, halogen, hydroxyl or carboxyl, n is 1 or 2, m is 0, 1 or 2, R1 and R2, independently of one another, are each alkyl or the group (see formula 3) R3 and R4, independently of one another, are each hydrogen, methyl or ethyl, p is a number from 2 to 20 and q is a number from 1 to 20, and, if desired, water- soluble organic solubilising agents.

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