JPS5123498B2 - - Google Patents
Info
- Publication number
- JPS5123498B2 JPS5123498B2 JP47049143A JP4914372A JPS5123498B2 JP S5123498 B2 JPS5123498 B2 JP S5123498B2 JP 47049143 A JP47049143 A JP 47049143A JP 4914372 A JP4914372 A JP 4914372A JP S5123498 B2 JPS5123498 B2 JP S5123498B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Landscapes
- Furan Compounds (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47049143A JPS5123498B2 (https=) | 1972-05-19 | 1972-05-19 | |
| US05/324,050 US3940426A (en) | 1972-04-03 | 1973-01-16 | Process for producing biphenyltetracarboxylic dianhydrides |
| DE2304551A DE2304551C2 (de) | 1972-04-03 | 1973-01-31 | Verfahren zur Isolierung von 3,3',4,4'- und 2,3,3',4'-Biphenyltetracarbonsäuredianhydrid aus einem Isomerengemisch |
| DE2366569A DE2366569C2 (de) | 1972-04-03 | 1973-01-31 | 2,3,3',4'-Biphenyltetracarbonsäuredianhydrid |
| FR7305836A FR2178862B1 (https=) | 1972-04-03 | 1973-02-19 | |
| US05/597,789 US4048197A (en) | 1972-04-03 | 1975-07-21 | 2,3,3',4'-Biphenyltetracarboxylic acid dianhydride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47049143A JPS5123498B2 (https=) | 1972-05-19 | 1972-05-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4911862A JPS4911862A (https=) | 1974-02-01 |
| JPS5123498B2 true JPS5123498B2 (https=) | 1976-07-17 |
Family
ID=12822849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47049143A Expired JPS5123498B2 (https=) | 1972-04-03 | 1972-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5123498B2 (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61249977A (ja) * | 1985-04-30 | 1986-11-07 | Mitsubishi Chem Ind Ltd | 高純度ビフエニルテトラカルボン酸二無水物の製法 |
| JP4977989B2 (ja) * | 2005-04-28 | 2012-07-18 | 宇部興産株式会社 | ２，３，３’，４’−ビフェニルテトラカルボン酸二無水物の製造方法 |
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1972
- 1972-05-19 JP JP47049143A patent/JPS5123498B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4911862A (https=) | 1974-02-01 |