C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 29/20 (2006.01) C07C 65/11 (2006.01) C07C 69/94 (2006.01) C07C 235/66 (2006.01) C09B 29/15 (2006.01) C09B 57/00 (2006.01) C09B 67/20 (2006.01) C09B 67/22 (2006.01) C09D 11/00 (2006.01)
Patent
CA 2314118
A toning agent for azo pigments, a toned azo pigment, and a process for producing the same. 2-Hydroxynaphthalene-3,6-dicarboxylic acid and a derivative thereof are incorporated into a main coupler ingredient for an azo pigment. The resultant mixture is coupled with an aromatic diazonium salt.
La présente invention concerne un agent de type toner pour pigments azoïques, un pigment azoïque teinté, et leur procédé de production. En outre, on ajoute un acide 2-hydroxynaphtalène-3,6-dicarboxylique et un dérivé de celui-ci à un principal ingrédient de couplage d'un pigment azoïque. Le mélange obtenu est couplé à un sel de diazonium aromatique.
Kitayama Masaya
Kubotsu Masamitsu
Minami Kenji
Ueno Ryuzo
Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
Kirby Eades Gale Baker
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