Fibre-reactive dyes, their preparation and their use

Details Fibre-reactive dyes, their preparation and their use Fibre-reactive dyes, their preparation and their use

2006-10-17

2006-10-17

Balasubramanian, Venkataraman (Department: 1624)

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C544S206000, C534S612000, C534S637000, C534S638000

Reexamination Certificate

active

07122667

ABSTRACT:
Reactive dyes of formula (1) wherein Q1, Q2, Q3and Q4are each independently of the others hydrogen or unsubstituted or substituted C1–C4alkyl, A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, D is the radical of a diazo component, of the benzene or naphthalene series, X is halogen, 3-carboxpyridin-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, and Y is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions, are suitable for dyeing cellulosic or amide-group-containing fibre materials.

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Derwent Abstr. 98-000648/01 (1997) for DE 19619239.
Derwent Abstr. 86-273362/42 (1986) for EP 0197418.
The Chemistry of Synthetic Dyes, vol. VI, Reactive Dyes, Ed. K. Venkataraman, Academic Press New York and London, 1972, pp. 33-51.

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