GB1181545A - A Method for Purification of Organic Polyisocyanates - Google Patents
A Method for Purification of Organic PolyisocyanatesInfo
- Publication number
- GB1181545A GB1181545A GB2098067A GB2098067A GB1181545A GB 1181545 A GB1181545 A GB 1181545A GB 2098067 A GB2098067 A GB 2098067A GB 2098067 A GB2098067 A GB 2098067A GB 1181545 A GB1181545 A GB 1181545A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mol
- molar concentration
- column
- fraction
- pressure
- 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
- 229920001228 polyisocyanate Polymers 0.000 title abstract 3
- 239000005056 polyisocyanate Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title 1
- 238000000746 purification Methods 0.000 title 1
- 238000005194 fractionation Methods 0.000 abstract 2
- 239000011261 inert gas Substances 0.000 abstract 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229920000768 polyamine Polymers 0.000 abstract 1
- 238000010992 reflux Methods 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 239000008096 xylene 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
- C07C263/18—Separation; Purification; Stabilisation; Use of additives
- C07C263/20—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyurethanes Or Polyureas (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2843166 | 1966-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1181545A true GB1181545A (en) | 1970-02-18 |
Family
ID=12248457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2098067A Expired GB1181545A (en) | 1966-05-05 | 1967-05-05 | A Method for Purification of Organic Polyisocyanates |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1643093C3 (enExample) |
| FR (1) | FR1555515A (enExample) |
| GB (1) | GB1181545A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108884024A (zh) * | 2016-04-07 | 2018-11-23 | 温科莱斯法国公司 | 苯二亚甲基二异氰酸酯xdi的制备流程 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5470220A (en) * | 1977-11-11 | 1979-06-05 | Mitsui Toatsu Chem Inc | Preparation of organic isocyanate |
| FR2625742B1 (fr) * | 1988-01-13 | 1990-06-22 | Rhone Poulenc Chimie | Procede de separation du toluene diisocyanate contenu dans les residus de sa fabrication |
| US5051152A (en) * | 1989-09-26 | 1991-09-24 | Air Products And Chemicals, Inc. | Preparation of urethane prepolymers having low levels of residual toluene diisocyanate |
-
1967
- 1967-05-03 FR FR1555515D patent/FR1555515A/fr not_active Expired
- 1967-05-05 GB GB2098067A patent/GB1181545A/en not_active Expired
- 1967-05-05 DE DE1967T0033792 patent/DE1643093C3/de not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108884024A (zh) * | 2016-04-07 | 2018-11-23 | 温科莱斯法国公司 | 苯二亚甲基二异氰酸酯xdi的制备流程 |
| CN108884024B (zh) * | 2016-04-07 | 2021-09-03 | 温科莱斯法国公司 | 苯二亚甲基二异氰酸酯xdi的制备流程 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1643093A1 (de) | 1972-03-16 |
| DE1643093C3 (de) | 1980-01-24 |
| DE1643093B2 (de) | 1977-04-21 |
| FR1555515A (enExample) | 1969-01-31 |
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