Water-soluble azo compounds and process for producing the same

Details Water-soluble azo compounds and process for producing the same Water-soluble azo compounds and process for producing the same

C - Chemistry, Metallurgy

09

B

C09B 62/085 (2006.01) C09B 29/15 (2006.01) C09B 29/20 (2006.01) C09B 62/008 (2006.01) C09B 62/245 (2006.01)

Patent

CA 2266258

New water-soluble azo compounds produced from 2-hydroxynaphthalene-3,6- dicarboxylic acid or derivatives thereof and a diazonium salt having a sulfo group. These compounds are useful as starting material for dyes excellent in dyeing properties and fastness.

La présente invention concerne de nouveaux composés azoïques hydrosolubles produits à partir d'acide 2-hydroxynaphtalène-3,6-dicarboxylique ou de dérivés de ce dernier et d'un sel de diazonium renfermant un groupe sulfo. Ces composés sont utilisés comme matière première dans la fabrication de colorants rapides dotés d'excellentes propriétés tinctoriales.

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