BE855402A - Procede de separation des isomeres du diaminodiphenylmethane - Google Patents
Procede de separation des isomeres du diaminodiphenylmethaneInfo
- Publication number
- BE855402A BE855402A BE178208A BE178208A BE855402A BE 855402 A BE855402 A BE 855402A BE 178208 A BE178208 A BE 178208A BE 178208 A BE178208 A BE 178208A BE 855402 A BE855402 A BE 855402A
- Authority
- BE
- Belgium
- Prior art keywords
- separation
- diaminodiphenylmethane isomers
- diaminodiphenylmethane
- isomers
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
- C07C209/78—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton from carbonyl compounds, e.g. from formaldehyde, and amines having amino groups bound to carbon atoms of six-membered aromatic rings, with formation of methylene-diarylamines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/693,081 US4201722A (en) | 1976-06-04 | 1976-06-04 | Process for separating 4,4'-diaminodiphenylmethane |
Publications (1)
Publication Number | Publication Date |
---|---|
BE855402A true BE855402A (fr) | 1977-12-05 |
Family
ID=24783232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE178208A BE855402A (fr) | 1976-06-04 | 1977-06-03 | Procede de separation des isomeres du diaminodiphenylmethane |
Country Status (13)
Country | Link |
---|---|
US (1) | US4201722A (xx) |
JP (1) | JPS5948819B2 (xx) |
BE (1) | BE855402A (xx) |
BR (1) | BR7703390A (xx) |
DD (1) | DD130930A5 (xx) |
DE (1) | DE2719996C2 (xx) |
ES (1) | ES458768A1 (xx) |
FR (1) | FR2353518A1 (xx) |
GB (1) | GB1546349A (xx) |
IT (1) | IT1078289B (xx) |
MX (1) | MX145854A (xx) |
NL (1) | NL7705499A (xx) |
SU (1) | SU718006A3 (xx) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7709679B2 (en) | 2006-01-20 | 2010-05-04 | Basf Aktiengesellschaft | Process for simultaneously preparing 4,4′-diphenylmethanediamine and diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates |
EP3640238A1 (de) | 2018-10-17 | 2020-04-22 | Covestro Deutschland AG | Verfahren zur herstellung von di- und polyaminen der diphenylmethanreihe |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009094B1 (de) * | 1978-09-12 | 1982-04-14 | GebràDer Sulzer Aktiengesellschaft | Verfahren zur Herstellung von Methylenbrücken aufweisenden Polyarylaminen |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2149525A (en) * | 1934-10-18 | 1939-03-07 | Monsanto Chemicals | Separation of aminodiphenyls |
GB808425A (en) * | 1954-08-21 | 1959-02-04 | Takashige Tojo | Improvements in or relating to the separation of aromatic amines |
US2938054A (en) * | 1958-02-18 | 1960-05-24 | Allied Chem | Process for purification of 4, 4'-methylenedianiline |
US3175007A (en) * | 1961-08-14 | 1965-03-23 | Dow Chemical Co | Purification of dianilines |
US3410906A (en) * | 1965-10-15 | 1968-11-12 | Phillips Petroleum Co | Process of separating amines |
US3542871A (en) * | 1968-07-29 | 1970-11-24 | Upjohn Co | Purification of 4,4'-methylene dianiline by crystallization |
DE2238379C3 (de) * | 1972-08-04 | 1984-08-30 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Polyaminen |
DE2238920C3 (de) * | 1972-08-08 | 1984-09-27 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Polyaminen |
CA1004234A (en) * | 1972-08-04 | 1977-01-25 | Bayer Aktiengesellschaft | Process for the production of polyamines |
US4029705A (en) * | 1975-08-18 | 1977-06-14 | The Upjohn Company | Purification process for MDA |
-
1976
- 1976-06-04 US US05/693,081 patent/US4201722A/en not_active Expired - Lifetime
-
1977
- 1977-05-04 DE DE2719996A patent/DE2719996C2/de not_active Expired
- 1977-05-09 GB GB19353/77A patent/GB1546349A/en not_active Expired
- 1977-05-11 MX MX169100A patent/MX145854A/es unknown
- 1977-05-13 ES ES458768A patent/ES458768A1/es not_active Expired
- 1977-05-18 NL NL7705499A patent/NL7705499A/xx not_active Application Discontinuation
- 1977-05-19 IT IT49480/77A patent/IT1078289B/it active
- 1977-05-25 DD DD7700199122A patent/DD130930A5/xx unknown
- 1977-05-26 BR BR7703390A patent/BR7703390A/pt unknown
- 1977-06-03 BE BE178208A patent/BE855402A/xx not_active IP Right Cessation
- 1977-06-03 SU SU772488999A patent/SU718006A3/ru active
- 1977-06-03 JP JP52064972A patent/JPS5948819B2/ja not_active Expired
- 1977-06-03 FR FR7717038A patent/FR2353518A1/fr active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7709679B2 (en) | 2006-01-20 | 2010-05-04 | Basf Aktiengesellschaft | Process for simultaneously preparing 4,4′-diphenylmethanediamine and diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates |
EP3640238A1 (de) | 2018-10-17 | 2020-04-22 | Covestro Deutschland AG | Verfahren zur herstellung von di- und polyaminen der diphenylmethanreihe |
Also Published As
Publication number | Publication date |
---|---|
US4201722A (en) | 1980-05-06 |
GB1546349A (en) | 1979-05-23 |
IT1078289B (it) | 1985-05-08 |
FR2353518A1 (fr) | 1977-12-30 |
DE2719996A1 (de) | 1977-12-15 |
JPS5948819B2 (ja) | 1984-11-29 |
DE2719996C2 (de) | 1986-06-26 |
FR2353518B1 (xx) | 1983-09-09 |
JPS52148055A (en) | 1977-12-08 |
MX145854A (es) | 1982-04-07 |
ES458768A1 (es) | 1978-03-16 |
DD130930A5 (de) | 1978-05-17 |
SU718006A3 (ru) | 1980-02-25 |
NL7705499A (nl) | 1977-12-06 |
BR7703390A (pt) | 1978-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: THE DOW CHEMICAL CY Effective date: 19960630 |