Azo dyes containing a 1-alkyl-6-hydroxy-4-methyl-3-sulfomethyl-p

Details Azo dyes containing a 1-alkyl-6-hydroxy-4-methyl-3-sulfomethyl-p Azo dyes containing a 1-alkyl-6-hydroxy-4-methyl-3-sulfomethyl-p

1995-08-25

1997-04-01

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

C09B 62491, C09B 62493, D06P 138

Patent

active

056166958

ABSTRACT:
The invention relates to azo dyes of formula ##STR1## wherein R.sub.1 is acryloyl, .alpha.-haloacryloyl, .alpha.-methylacryloyl or .alpha.,.beta.-dihalopropionyl, R.sub.2 is C.sub.1 -C.sub.5 alkyl which is unsubstituted or substituted by halogen, cyano, hydroxy, sulfo, sulfato or C.sub.1 -C.sub.4 alkoxy, n is 0 or 1 and m is 1;

REFERENCES:
patent: 4283331 (1981-08-01), Seitz et al.
patent: 4382890 (1983-05-01), de Montmollin et al.
patent: 4652633 (1987-03-01), Lamm
patent: 5391718 (1995-02-01), Tzikas et al.

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