Title:
反応性濃い黒色のワンポット合成
Document Type and Number:
Japanese Patent JP7062014
Kind Code:
B2
Abstract:
A one-pot synthesis for preparing an aqueous reactive black mixture includes a) dissolving 2-[(4-aminophenyl)sulfonyl]ethanesulfonic acid (vinyl sulphone parabase ester) in water; b) diazotizing the dissolved vinyl sulphone parabase ester using excess nitrous acid or using excess nitrite and an acid, resulting in a diazonium salt and remaining nitrous acid; c) quenching the remaining nitrous acid with sulfamic acid; d) coupling the diazonium salt of step c) with 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid (H-acid) until the reaction is complete, resulting in Reactive Black 5 (RB 5) and remaining diazonium salt, e) coupling the remaining diazonium salt with 7-acetamido-4-hydroxy-2-naphthalenesulfonic acid (acetyl-J-acid) until the reaction is complete resulting in Reactive Orange 78 (RO 78); and f) obtaining the aqueous reactive black mixture.
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Inventors:
Dennis Manuel Freezema
Sigrid Erie Sabeto Kleine
Martin Yang Smalegange
Sigrid Erie Sabeto Kleine
Martin Yang Smalegange
Application Number:
JP2019560283A
Publication Date:
May 02, 2022
Filing Date:
May 01, 2018
Export Citation:
Assignee:
SP PRINTS B.F.F.
International Classes:
C09B67/22; C09B62/51; C09B62/513; D06P1/384
Domestic Patent References:
| JP2005520909A | ||||
| JP6500353A | ||||
| JP2001172523A | ||||
| JP8127730A | ||||
| JP8310116A |
Foreign References:
| CN105273439A | ||||
| EP0600322A2 | ||||
| EP0795586A2 | ||||
| CN103788705A | ||||
| CN104371367A |
Attorney, Agent or Firm:
Murayama Yasuhiko
Shinya Mihiro
Tatsuhiko Abe
Shinya Mihiro
Tatsuhiko Abe