JPS5488222A - Preparation of isocyanate from carbamate - Google Patents
Preparation of isocyanate from carbamateInfo
- Publication number
- JPS5488222A JPS5488222A JP15346477A JP15346477A JPS5488222A JP S5488222 A JPS5488222 A JP S5488222A JP 15346477 A JP15346477 A JP 15346477A JP 15346477 A JP15346477 A JP 15346477A JP S5488222 A JPS5488222 A JP S5488222A
- Authority
- JP
- Japan
- Prior art keywords
- isocyanate
- carbamate
- raw material
- liquid
- inert medium
- 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
- 239000012948 isocyanate Substances 0.000 title abstract 5
- 150000002513 isocyanates Chemical class 0.000 title abstract 5
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 title abstract 3
- 238000002360 preparation method Methods 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000011109 contamination Methods 0.000 abstract 1
- PHYURWGMBQTCSY-UHFFFAOYSA-N ethyl n-[3-(ethoxycarbonylamino)-4-methylphenyl]carbamate Chemical compound CCOC(=O)NC1=CC=C(C)C(NC(=O)OCC)=C1 PHYURWGMBQTCSY-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15346477A JPS5488222A (en) | 1977-12-20 | 1977-12-20 | Preparation of isocyanate from carbamate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15346477A JPS5488222A (en) | 1977-12-20 | 1977-12-20 | Preparation of isocyanate from carbamate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5488222A true JPS5488222A (en) | 1979-07-13 |
| JPS6113465B2 JPS6113465B2 (enrdf_load_stackoverflow) | 1986-04-14 |
Family
ID=15563127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15346477A Granted JPS5488222A (en) | 1977-12-20 | 1977-12-20 | Preparation of isocyanate from carbamate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5488222A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692550A (en) * | 1982-04-27 | 1987-09-08 | Bayer Aktiengesellschaft | Continuous process for thermal splitting of carbamic acid esters |
| WO2001064628A1 (en) * | 2000-02-29 | 2001-09-07 | Huntsman International Llc | Process for the preparation of organic polyisocyanates |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5030832A (enrdf_load_stackoverflow) * | 1973-05-04 | 1975-03-27 | ||
| JPS5219624A (en) * | 1975-08-07 | 1977-02-15 | Mitsui Toatsu Chem Inc | Process for preparation of isocyanates |
-
1977
- 1977-12-20 JP JP15346477A patent/JPS5488222A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5030832A (enrdf_load_stackoverflow) * | 1973-05-04 | 1975-03-27 | ||
| JPS5219624A (en) * | 1975-08-07 | 1977-02-15 | Mitsui Toatsu Chem Inc | Process for preparation of isocyanates |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692550A (en) * | 1982-04-27 | 1987-09-08 | Bayer Aktiengesellschaft | Continuous process for thermal splitting of carbamic acid esters |
| WO2001064628A1 (en) * | 2000-02-29 | 2001-09-07 | Huntsman International Llc | Process for the preparation of organic polyisocyanates |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6113465B2 (enrdf_load_stackoverflow) | 1986-04-14 |
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