Metal complex colorant comprising azo moiety

Details Metal complex colorant comprising azo moiety Metal complex colorant comprising azo moiety

2008-04-29

2008-04-29

Powers, Fiona T (Department: 1626)

Bleaching and dyeing; fluid treatment and chemical modification

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

Mixed dyes, noncomplexed

C008S674000, C008S681000, C008S685000, C106S031510, C106S031520, C534S654000, C534S655000, C534S656000, C534S684000, C534S692000, C534S693000, C534S714000, C534S715000, C534S716000, C534S717000, C534S718000

Reexamination Certificate

active

10912544

ABSTRACT:
A metal complex colorant represented by formula 1 may embody various colors and has improved fastness, such as light resistance, water resistance and the like:wherein each of A1and A2is independently a moiety which includes a substituted or unsubstituted C2-C30alkenylene group having at least one double bond and is conjugated with an azo group; each of X1and X2is selected from the group consisting of a hydroxy group, a C1-C4alkoxy group, a carboxyl group, and a substituted or unsubstituted amino group; M is a polyvalent transition metal; L is a neutral or anionic ligand; n is an integer from 1 to 3; and J is a linker. The metal complex colorant may be used in various fields employing colors, such as fibers, foods, drugs, cosmetics, coatings, inks or ceramics.

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