CH560189A5 - - Google Patents
Info
- Publication number
- CH560189A5 CH560189A5 CH93173A CH93173A CH560189A5 CH 560189 A5 CH560189 A5 CH 560189A5 CH 93173 A CH93173 A CH 93173A CH 93173 A CH93173 A CH 93173A CH 560189 A5 CH560189 A5 CH 560189A5
- Authority
- CH
- Switzerland
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrogenated Pyridines (AREA)
- Polyesters Or Polycarbonates (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS42872A CS165031B1 (pl) | 1972-01-24 | 1972-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH560189A5 true CH560189A5 (pl) | 1975-03-27 |
Family
ID=5336320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH93173A CH560189A5 (pl) | 1972-01-24 | 1973-01-23 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS4881883A (pl) |
| CA (1) | CA973083A (pl) |
| CH (1) | CH560189A5 (pl) |
| CS (1) | CS165031B1 (pl) |
| DE (1) | DE2302977A1 (pl) |
| FR (1) | FR2169209B1 (pl) |
| GB (1) | GB1379002A (pl) |
| NL (1) | NL7301014A (pl) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1416202A (fr) * | 1963-11-30 | 1965-10-29 | Basf Ag | épuration de pyrrolidone-2 |
-
1972
- 1972-01-24 CS CS42872A patent/CS165031B1/cs unknown
-
1973
- 1973-01-22 DE DE19732302977 patent/DE2302977A1/de active Pending
- 1973-01-23 CH CH93173A patent/CH560189A5/xx not_active IP Right Cessation
- 1973-01-24 NL NL7301014A patent/NL7301014A/xx unknown
- 1973-01-24 FR FR7302495A patent/FR2169209B1/fr not_active Expired
- 1973-01-24 JP JP961173A patent/JPS4881883A/ja active Pending
- 1973-01-24 CA CA161,940A patent/CA973083A/en not_active Expired
- 1973-01-24 GB GB368973A patent/GB1379002A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2302977A1 (de) | 1973-08-02 |
| GB1379002A (en) | 1975-01-02 |
| JPS4881883A (pl) | 1973-11-01 |
| CS165031B1 (pl) | 1975-11-28 |
| FR2169209B1 (pl) | 1977-02-04 |
| FR2169209A1 (pl) | 1973-09-07 |
| NL7301014A (pl) | 1973-07-26 |
| CA973083A (en) | 1975-08-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |