JPS5422350A - Purification of aromatic polyamines - Google Patents
Purification of aromatic polyaminesInfo
- Publication number
- JPS5422350A JPS5422350A JP8689877A JP8689877A JPS5422350A JP S5422350 A JPS5422350 A JP S5422350A JP 8689877 A JP8689877 A JP 8689877A JP 8689877 A JP8689877 A JP 8689877A JP S5422350 A JPS5422350 A JP S5422350A
- Authority
- JP
- Japan
- Prior art keywords
- purification
- aromatic polyamines
- neutralizing
- compound
- reaction mixture
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain high-quality aromatic amines with little discoloration, by neutralizing a reaction mixture with an aqueous solution of an alkali containing tin (or its compound).
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8689877A JPS5826904B2 (en) | 1977-07-20 | 1977-07-20 | Method for purifying aromatic polyamines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8689877A JPS5826904B2 (en) | 1977-07-20 | 1977-07-20 | Method for purifying aromatic polyamines |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5422350A true JPS5422350A (en) | 1979-02-20 |
JPS5826904B2 JPS5826904B2 (en) | 1983-06-06 |
Family
ID=13899645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8689877A Expired JPS5826904B2 (en) | 1977-07-20 | 1977-07-20 | Method for purifying aromatic polyamines |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5826904B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5873288U (en) * | 1981-11-12 | 1983-05-18 | 電元オ−トメ−シヨン株式会社 | Automatic mahjong table hopper lid opening/closing device |
JPS5873286U (en) * | 1981-11-12 | 1983-05-18 | 電元オ−トメ−シヨン株式会社 | Coating conveyor belt for automatic mahjong table |
JPS5886181U (en) * | 1981-12-04 | 1983-06-11 | 狭山精密工業株式会社 | Quadruple tile feeding device at fully automatic mahjong table |
JPS58133393U (en) * | 1982-03-01 | 1983-09-08 | 狭山精密工業株式会社 | Tile feed detection mechanism in fully automatic mahjong table |
JPS58185282U (en) * | 1982-06-04 | 1983-12-09 | 有馬精密工業株式会社 | Automatic mahjong machine tile dispensing device |
JPS59199655A (en) * | 1983-04-27 | 1984-11-12 | Toyo Soda Mfg Co Ltd | Preparation of methylated amine compound |
JPH02138155A (en) * | 1988-11-18 | 1990-05-28 | Nippon Carbide Ind Co Inc | Bis(2,3,5,6-tetrafluoro-4-aminophenyl) methane and production thereof |
-
1977
- 1977-07-20 JP JP8689877A patent/JPS5826904B2/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5873288U (en) * | 1981-11-12 | 1983-05-18 | 電元オ−トメ−シヨン株式会社 | Automatic mahjong table hopper lid opening/closing device |
JPS5873286U (en) * | 1981-11-12 | 1983-05-18 | 電元オ−トメ−シヨン株式会社 | Coating conveyor belt for automatic mahjong table |
JPS5886181U (en) * | 1981-12-04 | 1983-06-11 | 狭山精密工業株式会社 | Quadruple tile feeding device at fully automatic mahjong table |
JPS58133393U (en) * | 1982-03-01 | 1983-09-08 | 狭山精密工業株式会社 | Tile feed detection mechanism in fully automatic mahjong table |
JPS58185282U (en) * | 1982-06-04 | 1983-12-09 | 有馬精密工業株式会社 | Automatic mahjong machine tile dispensing device |
JPS59199655A (en) * | 1983-04-27 | 1984-11-12 | Toyo Soda Mfg Co Ltd | Preparation of methylated amine compound |
JPH02138155A (en) * | 1988-11-18 | 1990-05-28 | Nippon Carbide Ind Co Inc | Bis(2,3,5,6-tetrafluoro-4-aminophenyl) methane and production thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS5826904B2 (en) | 1983-06-06 |
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