Sulfophenyl-azo-phenyl-azo-(4-hydroxyalkoxyphenyl) compounds

Details Sulfophenyl-azo-phenyl-azo-(4-hydroxyalkoxyphenyl) compounds Sulfophenyl-azo-phenyl-azo-(4-hydroxyalkoxyphenyl) compounds

1974-08-08

1977-10-25

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260205, 260206, C09B 4300

Patent

active

040555607

ABSTRACT:
Yellow to orange, disazo acid dyes which have excellent application and fastness properties on nylon fibers, do not change shade under basic conditions and have the formula ##STR1## wherein SO.sub.3 M is meta or para to the azo group, R.sub.1 is selected from H, CH.sub.3, OCH.sub.3 and Cl, R.sub.2 and R.sub.3 are independently selected from H, CH.sub.3 and OCH.sub.3, R.sub.4 and R.sub.5 are independently selected from H, Cl and CH.sub.3, but only one can be Cl, R.sub.6 is selected from CH.sub.3 and C.sub.2 H.sub.5 and M is, C.sub.1-4 alkylammonium and C.sub.1-2 alkanolammonium cations.

REFERENCES:
patent: 2134521 (1938-10-01), Knight
patent: 3676050 (1972-07-01), James
patent: 3708596 (1973-01-01), Happe et al.
patent: 3862119 (1975-01-01), Stingl
patent: 3932376 (1976-01-01), Feeman
patent: 3932378 (1976-01-01), Fasciati

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