FR2448525A1 - Ameliorations relatives a la preparation du 2,2'-azobis (2-methylpropionitrile) - Google Patents
Ameliorations relatives a la preparation du 2,2'-azobis (2-methylpropionitrile)Info
- Publication number
- FR2448525A1 FR2448525A1 FR7913875A FR7913875A FR2448525A1 FR 2448525 A1 FR2448525 A1 FR 2448525A1 FR 7913875 A FR7913875 A FR 7913875A FR 7913875 A FR7913875 A FR 7913875A FR 2448525 A1 FR2448525 A1 FR 2448525A1
- Authority
- FR
- France
- Prior art keywords
- methylpropionitrile
- azobis
- preparation
- improvements relating
- high purity
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/63—Carboxylic acid nitriles containing cyano groups and nitrogen atoms further bound to other hetero atoms, other than oxygen atoms of nitro or nitroso groups, bound to the same carbon skeleton
- C07C255/65—Carboxylic acid nitriles containing cyano groups and nitrogen atoms further bound to other hetero atoms, other than oxygen atoms of nitro or nitroso groups, bound to the same carbon skeleton with the nitrogen atoms further bound to nitrogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
ON OBTIENT LE 2,2-AZOBIS(2-METHYLPROPIONITRILE) AVEC UN RENDEMENT ELEVE ET UNE PURETE ELEVEE, 1.EN SOUMETTANT A UNE DISTILLATION SOUS PRESSION REDUITE, DU 2-AMINO-2-METHYLPROPIONITRILE BRUT, 2.EN METTANT LE 2-AMINO-2-METHYLPROPIONITRILE PURIFIE RESULTANT AYANT UNE TENEUR EN AMMONIAC DE 1,5 EN POIDS OU MOINS, EN CONTACT AVEC UNE SOLUTION AQUEUSE D'HYPOCHLORITE METALLIQUE PUIS 3.EN TRAITANT PAR UN AGENT REDUCTEUR LA SUSPENSION AQUEUSE RESULTANTE DE 2,2-AZOBIS(2-METHYLPROPIONITRILE). LE COMPOSE OBTENU AVEC UNE GRANDE PURETE EST UTILISABLE COMME AGENT DE MOUSSAGE OU COMME AGENT D'AMORCAGE DANS UNE POLYMERISATION RADICALAIRE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1303579A JPS55104247A (en) | 1979-02-06 | 1979-02-06 | Improved preparation of azo compound |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2448525A1 true FR2448525A1 (fr) | 1980-09-05 |
FR2448525B1 FR2448525B1 (fr) | 1983-11-04 |
Family
ID=11821858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7913875A Granted FR2448525A1 (fr) | 1979-02-06 | 1979-05-30 | Ameliorations relatives a la preparation du 2,2'-azobis (2-methylpropionitrile) |
Country Status (5)
Country | Link |
---|---|
US (1) | US4252717A (fr) |
JP (1) | JPS55104247A (fr) |
DE (1) | DE2918754A1 (fr) |
FR (1) | FR2448525A1 (fr) |
GB (1) | GB2042506B (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5010179A (en) * | 1989-12-26 | 1991-04-23 | The B. F. Goodrich Company | Process for the preparation of mixed, symmetrical azonitrile dicarboxylic dicyano acids and initiators |
US5037963A (en) * | 1989-12-26 | 1991-08-06 | The B. F. Goodrich Company | Process for the preparation of symmetrical azo-dinitrile, dicarboxylic acids from keto acids |
DE4344224A1 (de) * | 1993-12-23 | 1995-06-29 | Stockhausen Chem Fab Gmbh | Vernetzte synthetische Polymerisate mit poröser Struktur, hoher Aufnahmegeschwindigkeit für Wasser, wäßrige Lösungen und Körperflüssigkeiten, ein Verfahren zu ihrer Herstellung und ihre Verwendung zur Absorption und/oder Retention von Wasser und/oder wäßrigen Flüssigkeiten |
US5671996A (en) * | 1994-12-30 | 1997-09-30 | Donnelly Corporation | Vehicle instrumentation/console lighting |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937696A (en) * | 1974-04-02 | 1976-02-10 | E. I. Du Pont De Nemours & Co. | Process for preparing higher purity azo compounds |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2711405A (en) * | 1949-04-05 | 1955-06-21 | Du Pont | Preparation of azo compounds |
US2713576A (en) * | 1949-07-22 | 1955-07-19 | Rohm & Haas | Preparation of azo compounds |
US3390146A (en) * | 1964-04-07 | 1968-06-25 | Chemetron Corp | Preparation of azo compounds |
JPS4920297A (fr) * | 1972-06-19 | 1974-02-22 | ||
US3987025A (en) * | 1974-06-28 | 1976-10-19 | E. I. Du Pont De Nemours And Company | Liquid azonitrile mixtures |
US4051124A (en) * | 1976-05-14 | 1977-09-27 | E. I. Du Pont De Nemours And Company | Process for producing an azonitrile with improved color from an aminonitrile in an aqueous system comprising mixed surface active compounds |
JPS5459223A (en) * | 1977-10-12 | 1979-05-12 | Sumitomo Chem Co Ltd | Preparation of azo compounds |
US4132729A (en) * | 1977-11-14 | 1979-01-02 | E. I. Du Pont De Nemours And Company | Purification of 2-amino-2,4-dimethyl-4-methoxy pentanenitrile |
-
1979
- 1979-02-06 JP JP1303579A patent/JPS55104247A/ja active Granted
- 1979-05-01 US US06/034,988 patent/US4252717A/en not_active Expired - Lifetime
- 1979-05-09 DE DE19792918754 patent/DE2918754A1/de active Granted
- 1979-05-10 GB GB7916232A patent/GB2042506B/en not_active Expired
- 1979-05-30 FR FR7913875A patent/FR2448525A1/fr active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937696A (en) * | 1974-04-02 | 1976-02-10 | E. I. Du Pont De Nemours & Co. | Process for preparing higher purity azo compounds |
Also Published As
Publication number | Publication date |
---|---|
GB2042506B (en) | 1983-05-18 |
US4252717A (en) | 1981-02-24 |
JPS5751828B2 (fr) | 1982-11-04 |
JPS55104247A (en) | 1980-08-09 |
FR2448525B1 (fr) | 1983-11-04 |
DE2918754A1 (de) | 1980-08-14 |
GB2042506A (en) | 1980-09-24 |
DE2918754C2 (fr) | 1989-07-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
ST | Notification of lapse |