JPS559654A - Preparation of azo lake pigment - Google Patents
Preparation of azo lake pigmentInfo
- Publication number
- JPS559654A JPS559654A JP8235078A JP8235078A JPS559654A JP S559654 A JPS559654 A JP S559654A JP 8235078 A JP8235078 A JP 8235078A JP 8235078 A JP8235078 A JP 8235078A JP S559654 A JPS559654 A JP S559654A
- Authority
- JP
- Japan
- Prior art keywords
- reactor
- solution
- lake pigment
- azo lake
- coupling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
PURPOSE: To prepare an azo lake pigment having uniform and high qualities, by supplying a reactor continuously and simultaneously with a solution containing a diazo compound and a lake forming agent and a solution containing a coupling component, and carrying out the coupling reaction in the reactor.
CONSTITUTION: A reactor is supplied continuously and simultaneously with (A) a solution or dispersion of a diazo component obtained by the diazotization of an amine of formula II [R is (non)substituted benzene- or naphthalene-ring having one or more -SO3H or -COOH], and a lake forming agent comprising a water soluble salt of Ca, Ba, Sr, etc., and (B) a solution or dispersion of a coupling component obtained by dissolving a compound III in an alkaline aqueous solution, and if necessary, adding a rosin soap or a surface active agent. The molar ratio of the coupling component to the diazo component is 1 to 1W1.2. The coupling reaction product is continuously taken out of the reactor to obtain the azo lake pigment of formula I.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8235078A JPS5821937B2 (en) | 1978-07-05 | 1978-07-05 | Manufacturing method of azo lake pigment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8235078A JPS5821937B2 (en) | 1978-07-05 | 1978-07-05 | Manufacturing method of azo lake pigment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS559654A true JPS559654A (en) | 1980-01-23 |
| JPS5821937B2 JPS5821937B2 (en) | 1983-05-04 |
Family
ID=13772110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8235078A Expired JPS5821937B2 (en) | 1978-07-05 | 1978-07-05 | Manufacturing method of azo lake pigment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5821937B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5986660A (en) * | 1982-10-08 | 1984-05-18 | チバ−ガイギ−・アクチエンゲゼルシヤフト | Manufacture of azo compound |
| JPH01230676A (en) * | 1986-12-23 | 1989-09-14 | Kao Corp | Spherical microparticulate pigment and its production |
| US5380363A (en) * | 1992-02-13 | 1995-01-10 | Francolor Pigments Sa | Pigment composition |
| US7087751B2 (en) | 2001-01-18 | 2006-08-08 | Schering Corporation | Synthesis of temozolomide and analogs |
-
1978
- 1978-07-05 JP JP8235078A patent/JPS5821937B2/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5986660A (en) * | 1982-10-08 | 1984-05-18 | チバ−ガイギ−・アクチエンゲゼルシヤフト | Manufacture of azo compound |
| JPH01230676A (en) * | 1986-12-23 | 1989-09-14 | Kao Corp | Spherical microparticulate pigment and its production |
| US5380363A (en) * | 1992-02-13 | 1995-01-10 | Francolor Pigments Sa | Pigment composition |
| US7087751B2 (en) | 2001-01-18 | 2006-08-08 | Schering Corporation | Synthesis of temozolomide and analogs |
| US7446209B2 (en) | 2001-01-18 | 2008-11-04 | Schering Corporation | Synthesis of temozolomide and analogs |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5821937B2 (en) | 1983-05-04 |
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