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US 3,957,752 AGranted
Quaternized azoanilino toluene sulfonamidoalkylene-amine dyes
AssigneeAmerican Aniline Products, Inc.
InventorEdgar E. Renfrew
Life of this patent
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Abstract
Quaternized azo dyes made by coupling an appropriate diazotized benzenoid base with an N-dialkylaminoalkylene [.alpha.(N-alkylanilino)] m- or p-toluenesulfonamide. Quaternization of the pendant dialkylamino group of the coupling component is carried out before or after coupling. The water soluble quaternary azo dyes are especially useful for coloring acrylic fibers.
Claims3
A dye of the formula ##SPC10##
- in which:
- B is ##SPC11##
- wherein:
- X, y, and Z are members selected from the group consisting of hydrogen, nitro, chlorine, bromine, lower alkoxy, lower alkyl, cyano, sulfamyl, N-(lower alkyl)-sulfamyl, N,N-(dilower alkyl)sulfamyl lower alkylcarbonylamino, benzoylamino, lower alkylsulfonylamino, ,trifluoromethyl, lower alkyl sulfonyl, carbamoyl, N-(lower alkyl)carbamoyl and N,N-(dilower alkyl)carbamoyl;
- R.sub.1 is lower alkyl, cyano lower alkyl, and hydroxy lower alkyl;
- R.sub.2, r.sub.3 and R.sub.4 are members selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, chlorine and bromine;
- n is an integer having a value of 2-4;
- Q is ##EQU2## R.sub.5 and R.sub.6 are methyl or ethyl;
- R is hydrogen, methyl, or ethyl;
- and
- A is a water soluble anion.
8 more elements
Dependencies are inferred from the claim text.