GB1200282A - Production of toluene diisocyanates - Google Patents
Production of toluene diisocyanatesInfo
- Publication number
- GB1200282A GB1200282A GB3755068A GB3755068A GB1200282A GB 1200282 A GB1200282 A GB 1200282A GB 3755068 A GB3755068 A GB 3755068A GB 3755068 A GB3755068 A GB 3755068A GB 1200282 A GB1200282 A GB 1200282A
- Authority
- GB
- United Kingdom
- Prior art keywords
- toluene diisocyanate
- solvent
- production
- aug
- toluene
- 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
Links
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical class CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 title abstract 4
- 239000012948 isocyanate Substances 0.000 abstract 2
- 150000002513 isocyanates Chemical class 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- VOZKAJLKRJDJLL-UHFFFAOYSA-N 2,4-diaminotoluene Chemical compound CC1=CC=C(N)C=C1N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 abstract 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,200,282. Toluene diisocyanate. WYANDOTTE CHEMICALS CORP. 6 Aug., 1968 [8 Aug., 1967], No. 37550/68. Heading C2C. A toluene diisocyanate product containing a substantial amount of polymeric isocyanates is prepared by reacting phosgene and toluene diamine in an inert organic solvent to produce a product containing toluene diisocyanate, polymeric isocyanates and said solvent, removing a major proportion of said solvent and heating the product for a period of at least ¢ hour at a temperature of at least 130‹ C. Apparatus for carrying out the process is described with reference to the drawing (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65905367A | 1967-08-08 | 1967-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1200282A true GB1200282A (en) | 1970-07-29 |
Family
ID=24643837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3755068A Expired GB1200282A (en) | 1967-08-08 | 1968-08-06 | Production of toluene diisocyanates |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE719206A (en) |
| FR (1) | FR1584617A (en) |
| GB (1) | GB1200282A (en) |
| NL (1) | NL6811134A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117623986A (en) * | 2023-11-02 | 2024-03-01 | 万华化学集团股份有限公司 | An isocyanate and its preparation method and application |
| CN118184543A (en) * | 2022-12-12 | 2024-06-14 | 万华化学集团股份有限公司 | A light-colored isocyanate and its preparation method and application |
| WO2025091382A1 (en) * | 2023-11-02 | 2025-05-08 | 万华化学集团股份有限公司 | Isocyanate, and preparation method therefor and use thereof |
-
1968
- 1968-08-05 NL NL6811134A patent/NL6811134A/xx not_active Application Discontinuation
- 1968-08-06 GB GB3755068A patent/GB1200282A/en not_active Expired
- 1968-08-07 FR FR1584617D patent/FR1584617A/fr not_active Expired
- 1968-08-08 BE BE719206D patent/BE719206A/xx unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118184543A (en) * | 2022-12-12 | 2024-06-14 | 万华化学集团股份有限公司 | A light-colored isocyanate and its preparation method and application |
| CN117623986A (en) * | 2023-11-02 | 2024-03-01 | 万华化学集团股份有限公司 | An isocyanate and its preparation method and application |
| WO2025091382A1 (en) * | 2023-11-02 | 2025-05-08 | 万华化学集团股份有限公司 | Isocyanate, and preparation method therefor and use thereof |
| CN117623986B (en) * | 2023-11-02 | 2025-12-26 | 万华化学集团股份有限公司 | An isocyanate, its preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1793141B2 (en) | 1977-02-03 |
| FR1584617A (en) | 1969-12-26 |
| BE719206A (en) | 1969-02-10 |
| NL6811134A (en) | 1969-02-11 |
| DE1793141A1 (en) | 1972-04-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 414F | Notice of opposition given (sect. 14/1949) | ||
| 414A | Case decided by the comptroller ** specification amended (sect. 14/1949) | ||
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |