ES2106507T3 - Procedimiento para la preparacion de isocianatos. - Google Patents
Procedimiento para la preparacion de isocianatos.Info
- Publication number
- ES2106507T3 ES2106507T3 ES94905433T ES94905433T ES2106507T3 ES 2106507 T3 ES2106507 T3 ES 2106507T3 ES 94905433 T ES94905433 T ES 94905433T ES 94905433 T ES94905433 T ES 94905433T ES 2106507 T3 ES2106507 T3 ES 2106507T3
- Authority
- ES
- Spain
- Prior art keywords
- mixtures
- group
- organic
- ammonium carbamate
- base selected
- 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.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/04—Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
UN PROCESO PARA PREPARAR ISOCIANATOS QUE COMPRENDE (A) PONER EN CONTACTO UN DIOXIDO DE CARBONO Y UNA AMINA PRIMARIA EN PRESENCIA DE UN DISOLVENTE ORGANICO APROTICO Y UNA BASE SELECCIONADA DEL GRUPO FORMADO POR UN COMPUESTO FOSFACENO, UNA BASE NITROGENOSA, ORGANICA Y MEZCLAS DE LOS MISMOS, POR LO QUE LA BASE NITROGENOSA, ORGANICA SELECCIONADA DEL GRUPO FORMADO POR COMPUESTOS DE GUANIDINA, COMPUESTOS DE AMIDINA, AMINAS TERCIARIAS, PIRIDINA Y MEZCLAS DE LOS MISMOS PARA PRODUCIR LA CORRESPONDIENTE SAL DE CARBAMATO DE AMONIO, Y (B) LA REACCION DE LA SAL DE CARBAMATO DE AMONIO CON UN AGENTE DEHIDRATANTE OXOFILICO O ELECTROFILICO PARA PRODUCIR EL CORRRESPONDIENDE ISOCIANATO. UNA SEGUNDA CONFIGURACION COMPRENDE RECUBRIR LA SAL DE CARBAMATO DE AMONIO DEL PASO (A) ANTES DE PONER EN REACCION LA SAL DE CARBAMATO DE AMONIO CON UN AGENTE DEHIDRATANTE OXOFILICO O ELECTROFILICO EN LA PRESENCIA DE UN DISOLVENTE ORGANICO APROTICO Y UNA BASE SELECCIONADA DEL GRUPO FORMADO DE COMPUESTO DE FOSFACENO, UNA BASE NITROGENOSA, ORGANICA Y MEZCLAS DE LOS MISMOS, POR LO QUE LA BASE NITROGENOSA, ORGANICA SELECCIONADA DEL GRUPO FORMADO DE COMPUESTOS DE GUANIDINA, COMPUESTOS DE AMIDINA, AMINAS TERCIARIAS, PIRIDINA Y MEZCLAS DE LOS MISMOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/006,409 US5349081A (en) | 1993-01-21 | 1993-01-21 | Process for preparing isocyanates |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2106507T3 true ES2106507T3 (es) | 1997-11-01 |
Family
ID=21720723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES94905433T Expired - Lifetime ES2106507T3 (es) | 1993-01-21 | 1993-12-17 | Procedimiento para la preparacion de isocianatos. |
Country Status (13)
Country | Link |
---|---|
US (1) | US5349081A (es) |
EP (1) | EP0680466B1 (es) |
JP (1) | JP3420583B2 (es) |
KR (1) | KR100226551B1 (es) |
CN (1) | CN1099384A (es) |
AT (1) | ATE157350T1 (es) |
CA (1) | CA2151725C (es) |
DE (1) | DE69313468T2 (es) |
ES (1) | ES2106507T3 (es) |
MX (1) | MX9400552A (es) |
MY (1) | MY111083A (es) |
TW (1) | TW393456B (es) |
WO (1) | WO1994017032A1 (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4331085A1 (de) * | 1993-09-13 | 1995-03-16 | Basf Ag | Stabile, nach phosgenfreien Verfahren erhältliche Polyisocyanatzusammensetzungen und ein Verfahren zu ihrer Herstellung |
US5451697A (en) * | 1993-12-27 | 1995-09-19 | Monsanto Company | Process for preparing isocyanates |
US6204382B1 (en) * | 1994-08-05 | 2001-03-20 | Cytec Technology Corp. | Carboxylated amino-1,3,5-triazines, derivatives thereof and processes for preparing the same |
FR2965561B1 (fr) * | 2010-10-05 | 2012-08-31 | Adisseo France Sas | Procede de preparation d?un acide amine a partir de 2-aminobutyrolactone |
EP3546466B1 (de) * | 2018-03-28 | 2020-12-02 | Evonik Operations GmbH | Verfahren zur herstellung alkoxysilangruppen-haltiger isocyanate |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3481967A (en) * | 1966-04-01 | 1969-12-02 | Olin Mathieson | Process for preparing aromatic isocyanates |
US4064151A (en) * | 1976-05-17 | 1977-12-20 | United Carbide Corporation | Halosilyl carbamates |
US4022791A (en) * | 1975-06-03 | 1977-05-10 | Pfizer Inc. | 2-Aminomethyl-3,4-dihydronaphthalenes |
DE2735265C2 (de) * | 1977-08-05 | 1979-09-27 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von symmetrischen Dialkylharnstoffen |
US4192815A (en) * | 1978-06-22 | 1980-03-11 | Glushakov Sergei N | Method of preparing isocyanates |
DE2908251A1 (de) * | 1979-03-02 | 1980-09-11 | Bayer Ag | Verfahren zur herstellung von urethanen |
DE2943480A1 (de) * | 1979-10-27 | 1981-05-07 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von n,o-disubstituierten urethanen, sowie ihre verwendung als ausgangsmaterial zur herstellung von isocyanaten |
DE3046982A1 (de) * | 1980-12-12 | 1982-07-15 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von urethanen |
US4341898A (en) * | 1981-05-18 | 1982-07-27 | Air Products And Chemicals, Inc. | Synthesis of isocyanates from nitroalkanes |
DE3346719A1 (de) * | 1983-12-23 | 1985-07-04 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von ammoniumcarbamat |
US5189205A (en) * | 1992-03-16 | 1993-02-23 | Monsanto Compamy | Process for preparing isocyanates |
-
1993
- 1993-01-21 US US08/006,409 patent/US5349081A/en not_active Expired - Lifetime
- 1993-12-17 WO PCT/US1993/012342 patent/WO1994017032A1/en active IP Right Grant
- 1993-12-17 ES ES94905433T patent/ES2106507T3/es not_active Expired - Lifetime
- 1993-12-17 JP JP51701394A patent/JP3420583B2/ja not_active Expired - Fee Related
- 1993-12-17 AT AT94905433T patent/ATE157350T1/de not_active IP Right Cessation
- 1993-12-17 DE DE69313468T patent/DE69313468T2/de not_active Expired - Fee Related
- 1993-12-17 EP EP94905433A patent/EP0680466B1/en not_active Expired - Lifetime
- 1993-12-17 KR KR1019950702719A patent/KR100226551B1/ko not_active IP Right Cessation
- 1993-12-17 CA CA002151725A patent/CA2151725C/en not_active Expired - Fee Related
- 1993-12-21 TW TW082110839A patent/TW393456B/zh not_active IP Right Cessation
-
1994
- 1994-01-20 MX MX9400552A patent/MX9400552A/es not_active Application Discontinuation
- 1994-01-20 MY MYPI94000159A patent/MY111083A/en unknown
- 1994-01-20 CN CN94100875A patent/CN1099384A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
ATE157350T1 (de) | 1997-09-15 |
KR100226551B1 (ko) | 1999-10-15 |
EP0680466A1 (en) | 1995-11-08 |
CN1099384A (zh) | 1995-03-01 |
WO1994017032A1 (en) | 1994-08-04 |
US5349081A (en) | 1994-09-20 |
EP0680466B1 (en) | 1997-08-27 |
CA2151725A1 (en) | 1994-08-04 |
JP3420583B2 (ja) | 2003-06-23 |
CA2151725C (en) | 1999-07-13 |
DE69313468D1 (de) | 1997-10-02 |
MX9400552A (es) | 1994-07-29 |
KR960700222A (ko) | 1996-01-19 |
MY111083A (en) | 1999-08-30 |
TW393456B (en) | 2000-06-11 |
DE69313468T2 (de) | 1998-02-05 |
JPH08505871A (ja) | 1996-06-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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