JPS4954389A - - Google Patents
Info
- Publication number
- JPS4954389A JPS4954389A JP5481273A JP5481273A JPS4954389A JP S4954389 A JPS4954389 A JP S4954389A JP 5481273 A JP5481273 A JP 5481273A JP 5481273 A JP5481273 A JP 5481273A JP S4954389 A JPS4954389 A JP S4954389A
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/16—Separation or purification
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722224505 DE2224505C3 (de) | 1972-05-19 | 1972-05-19 | Verfahren zur Reinigung von Caprolactam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4954389A true JPS4954389A (ja) | 1974-05-27 |
Family
ID=5845364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5481273A Pending JPS4954389A (ja) | 1972-05-19 | 1973-05-18 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS4954389A (ja) |
| BE (1) | BE799659A (ja) |
| CA (1) | CA1025854A (ja) |
| DE (1) | DE2224505C3 (ja) |
| FR (1) | FR2185623B1 (ja) |
| GB (1) | GB1403341A (ja) |
| IT (1) | IT985180B (ja) |
| NL (1) | NL7306843A (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5212187A (en) * | 1975-07-17 | 1977-01-29 | Toray Ind Inc | Method of purifying alpha-amino-epsilon- caprolactam |
| DE2845075A1 (de) * | 1978-10-17 | 1980-05-08 | Basf Ag | Verfahren zur reinigung von rohcaprolactam |
| IT1113404B (it) * | 1979-02-28 | 1986-01-20 | Snia Viscosa | Internazionale brevetti s.r.l.via brentano 2 milano |
| DE2939312C2 (de) * | 1979-09-28 | 1984-01-05 | Liba Maschinenfabrik Gmbh, 8674 Naila | Fadenzuführung für Kettenwirkmaschinen |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1416202A (fr) * | 1963-11-30 | 1965-10-29 | Basf Ag | épuration de pyrrolidone-2 |
| FR1490312A (fr) * | 1965-09-11 | 1967-07-28 | Zimmer Ag Hans J | Procédé perfectionné de purification de l'epsilon-caprolactame |
-
1972
- 1972-05-19 DE DE19722224505 patent/DE2224505C3/de not_active Expired
-
1973
- 1973-05-16 NL NL7306843A patent/NL7306843A/xx not_active Application Discontinuation
- 1973-05-17 IT IT5003173A patent/IT985180B/it active
- 1973-05-17 CA CA171,718A patent/CA1025854A/en not_active Expired
- 1973-05-17 GB GB2352273A patent/GB1403341A/en not_active Expired
- 1973-05-17 BE BE131211A patent/BE799659A/xx not_active IP Right Cessation
- 1973-05-18 JP JP5481273A patent/JPS4954389A/ja active Pending
- 1973-05-18 FR FR7318175A patent/FR2185623B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2224505A1 (de) | 1973-12-06 |
| GB1403341A (en) | 1975-08-28 |
| FR2185623B1 (ja) | 1976-11-12 |
| DE2224505C3 (de) | 1980-09-18 |
| DE2224505B2 (de) | 1980-01-17 |
| BE799659A (fr) | 1973-11-19 |
| IT985180B (it) | 1974-11-30 |
| FR2185623A1 (ja) | 1974-01-04 |
| CA1025854A (en) | 1978-02-07 |
| NL7306843A (ja) | 1973-11-21 |