Reactive dyes, a process for their preparation and their use

Details Reactive dyes, a process for their preparation and their use Reactive dyes, a process for their preparation and their use

2005-11-02

2009-06-30

Elhilo, Eisa B (Department: 1796)

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Mixed dyes, noncomplexed

C008S669000, C008S673000, C008S681000, C008S687000, C008S688000, C534S567000

Reexamination Certificate

active

07553340

ABSTRACT:
Reactive dyes of formula (1) wherein R1is hydrogen or unsubstituted or substituted C1-C4alkyl, R2is hydrogen; C1-C4alkyl; C1-C4alkoxy unsubstituted or substituted by sulfato, hydroxy or by C1-C4alkoxy; halogen; carboxy or sulfo, R3is hydrogen; C1-C4alkyl; C1-C4alkoxy unsubstituted or substituted by sulfato, hydroxy or by C1-C4alkoxy; halogen; nitro; C2-C4alkanoylamino; ureido; carboxy or sulfo, (R4)kdenotes k identical or different substituents selected from the group halogen, C1-C4-alkyl, C1-C4alkoxy, carboxy and sulfo, X is halogen and V is a radical of formula (2a), 2(b) wherein R5is unsubstituted or substituted C1-C4alkyl, (R6)Idenotes I identical or different substituents from the group C1-C4alkyl, C1-C4alkoxy and sulfo, and I is the number 0, 1 or 2, Y is vinyl or a —CH2—CH2—U radical and U is a group that is removable under alkaline conditions, Q is a —CH(HaI)-CH2-HaI or —C(HaI)=CH2group, Hal is halogen and k is the number 0, 1 , 2 or 3, are suitable especially for dyeing cotton and yield dyeings having good allround fastness properties.

REFERENCES:
patent: 4845203 (1989-07-01), Dietz et al.
patent: 5116956 (1992-05-01), Miyamoto et al.
patent: 5820661 (1998-10-01), Gregory et al.
patent: 0261079 (1988-03-01), None
patent: 0400647 (1998-10-01), None
STIC Structure Search, completed Feb. 25, 2009.

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