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US 2006/0286477 A1Published application
Methanesulfoamide azo dyes
AssigneeClariant Produkte (Deutschland) GmbH
InventorDominique Pflieger
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Abstract
This invention relates to monoazo, disazo and trisazo colorants of the formula (I) where M represents two hydrogen atoms or one metal ion selected from the group consisting of Cu, Co, Ni, Mn, Zn and Al; A is the radical of a substituted naphthyl or pyrazolyl radical.
Claims14
1) A compound of the general formula (I)
- wherein
- M is two hydrogen atoms or one metal ion selected from the group consisting of Cu, Co, Ni, Mn, Zn and Al;
- A is
- R1 is H, OH or —NH—(CH2)a—SO3−X+ where a is from 1 to 6;
- R2 is H or a radical of the formulae
- D is C6H4, C6H3(OH) or C6H3 (OCH3);
- X is H, alkali metal, NH4, C1-C18-alkyl-NH3, (C1-C18-alkyl)2NH2, (C1-C18-alkyl)3NH, (C1-C18-alkyl)3CNH3, (C1-C18-alkyl)2CHNH3, or (C1-C18-alkyl)4N, and
- n is from 1 to 4.
5 more elements
Dependencies are inferred from the claim text.