C - Chemistry – Metallurgy – 09 – B
Patent
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.
Kitayama Masaya
Kittaka Masaharu
Minami Kenji
Ueno Ryuzo
Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
Kirby Eades Gale Baker
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