BR8803787A - Processo para purificar caprolactama - Google Patents
Processo para purificar caprolactamaInfo
- Publication number
- BR8803787A BR8803787A BR8803787A BR8803787A BR8803787A BR 8803787 A BR8803787 A BR 8803787A BR 8803787 A BR8803787 A BR 8803787A BR 8803787 A BR8803787 A BR 8803787A BR 8803787 A BR8803787 A BR 8803787A
- Authority
- BR
- Brazil
- Prior art keywords
- caprolactama
- purify
- purify caprolactama
- Prior art date
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)
- Other In-Based Heterocyclic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT21548/87A IT1222419B (it) | 1987-07-31 | 1987-07-31 | Procedimento di purificazione del caprolattame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8803787A true BR8803787A (pt) | 1989-02-21 |
Family
ID=11183439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8803787A BR8803787A (pt) | 1987-07-31 | 1988-07-29 | Processo para purificar caprolactama |
Country Status (8)
| Country | Link |
|---|---|
| AR (1) | AR244664A1 (enrdf_load_stackoverflow) |
| BR (1) | BR8803787A (enrdf_load_stackoverflow) |
| CA (1) | CA1309404C (enrdf_load_stackoverflow) |
| DE (1) | DE3825524A1 (enrdf_load_stackoverflow) |
| ES (1) | ES2007278A6 (enrdf_load_stackoverflow) |
| IN (1) | IN171456B (enrdf_load_stackoverflow) |
| IT (1) | IT1222419B (enrdf_load_stackoverflow) |
| SU (1) | SU1709905A3 (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2781796B1 (fr) † | 1998-07-28 | 2000-09-22 | Rhone Poulenc Fibres | Procede de deshydratation de lactame |
| BR0212118A (pt) * | 2001-08-27 | 2004-07-20 | Dsm Ip Assets Bv | Processo para destilação de produto de caprolactama alcalino à pressão reduzida |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1173261B (it) * | 1984-02-08 | 1987-06-18 | Snia Bpd Spa | Procedimento di purificazione del caprolattame |
-
1987
- 1987-07-31 IT IT21548/87A patent/IT1222419B/it active
-
1988
- 1988-07-08 IN IN480/MAS/88A patent/IN171456B/en unknown
- 1988-07-26 CA CA000573088A patent/CA1309404C/en not_active Expired - Fee Related
- 1988-07-27 AR AR88311523A patent/AR244664A1/es active
- 1988-07-27 DE DE3825524A patent/DE3825524A1/de not_active Withdrawn
- 1988-07-29 SU SU884356218A patent/SU1709905A3/ru active
- 1988-07-29 BR BR8803787A patent/BR8803787A/pt not_active IP Right Cessation
- 1988-07-29 ES ES8802389A patent/ES2007278A6/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES2007278A6 (es) | 1989-06-01 |
| IN171456B (enrdf_load_stackoverflow) | 1992-10-17 |
| IT8721548A0 (it) | 1987-07-31 |
| IT1222419B (it) | 1990-09-05 |
| DE3825524A1 (de) | 1989-02-09 |
| SU1709905A3 (ru) | 1992-01-30 |
| CA1309404C (en) | 1992-10-27 |
| AR244664A1 (es) | 1993-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FB19 | Grant procedure suspended (art. 19) | ||
| FF | Decision: intention to grant | ||
| FG | Letter patent granted | ||
| TC | Change of name | ||
| TE | Change of address | ||
| B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 29/07/2003 |