Fiber-reactive azo dyes, their preparation and their use

Details Fiber-reactive azo dyes, their preparation and their use Fiber-reactive azo dyes, their preparation and their use

2006-08-08

2006-08-08

Powers, Fiona T. (Department: 1626)

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

Organic compounds

Azo

C534S612000, C534S617000, C534S622000, C534S635000, C534S636000, C534S637000, C008S466000, C008S549000, C106S031480

Reexamination Certificate

active

07087730

ABSTRACT:
Reactive dyes of formula (I), wherein A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, Q1, and Q2are each independently of the other hydrogen or unsubstituted or substituted C1–C4alkyl, (Q3)ndenotes n substituents selected from the group C1–C4alkyl, C1–C4alkoxy, halogen and sulfo, X is halogen, 3-carboxypyridin-1-yl, 3-carbamoylpyridin-1-yl, hydroxy, C1–C4alkoxy unsubstituted or substituted in the alkyl moiety, phenoxy unsubstituted or substituted in the phenyl moiety, C1–C4alkylthio unsubstituted or substituted in the alkyl moiety, unsubstituted or substituted amino, or an N-heterocycle which may or may not contain further hetero atoms, Y is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions, k is a number 2, 3, 4, 5 or 6, m is a number 0 or 1, and n is a number 0, 1 or 2, with the proviso that when A denotes a monoazo chromophore it is not directly linked to the triazinyl radical through a hydroxynaphthalenesulfonic acid coupling component and does not denote a radical of formula (II), are suitable for dyeing cellulosic or nitrogen-containing fiber materials

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patent: 6323327 (2001-11-01), Tzikas et al.
patent: 1097971 (2001-05-01), None
patent: 1155149 (1969-06-01), None

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