Reactive orange dyes containing vinyl sulfones

Details Reactive orange dyes containing vinyl sulfones Reactive orange dyes containing vinyl sulfones

2006-01-31

2006-01-31

Powers, Fiona T. (Department: 1626)

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

Organic compounds

Azo

C534S642000

Reexamination Certificate

active

06992179

ABSTRACT:
The present invention relates to a reactive orange dye containing vinyl sulfone and more particularly, to the dye which have 6(7)-alkoxycarbonylamino-4-hydroxy-2-naphthalenesulfonic acid as a chromophore and aminophenyl-β-ethylsulfone derivative as an azo coupler. This dye provides excellent fastness in terms of light, washing, perspiration and chlorine as well as better dyeing yield than other monofunctional reactive dye. In Formula (1), M is alkaline metal atom; Z is —O—SO3M or OC(O)CH3; R is alkyl group having 1–4 of carbon atom; and a position of C6or C7is substituted with carbamate group.

REFERENCES:
patent: 4080322 (1978-03-01), Mislin et al.
patent: 5011917 (1991-04-01), Opitz et al.
patent: 6443997 (2002-09-01), Oh et al.
patent: 1 289 159 (1972-09-01), None

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