NL7406894A - - Google Patents
Info
- Publication number
- NL7406894A NL7406894A NL7406894A NL7406894A NL7406894A NL 7406894 A NL7406894 A NL 7406894A NL 7406894 A NL7406894 A NL 7406894A NL 7406894 A NL7406894 A NL 7406894A NL 7406894 A NL7406894 A NL 7406894A
- Authority
- NL
- Netherlands
Links
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
-
- 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 |
|---|---|---|---|
| GB2537073A GB1417087A (en) | 1973-05-29 | 1973-05-29 | Polyisocyanates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7406894A true NL7406894A (cs) | 1974-12-03 |
Family
ID=10226582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7406894A NL7406894A (cs) | 1973-05-29 | 1974-05-22 |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5826337B2 (cs) |
| AR (1) | AR202214A1 (cs) |
| BE (1) | BE815525A (cs) |
| BR (1) | BR7404304D0 (cs) |
| DE (1) | DE2425658A1 (cs) |
| ES (1) | ES426730A1 (cs) |
| FR (1) | FR2231709B1 (cs) |
| GB (1) | GB1417087A (cs) |
| IT (1) | IT1012607B (cs) |
| NL (1) | NL7406894A (cs) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1483957A (en) * | 1975-05-19 | 1977-08-24 | Ici Ltd | Diphenylmethane diisocyanate compositions |
| US4055548A (en) * | 1976-09-17 | 1977-10-25 | The Upjohn Company | Storage-stable liquid polyisocyanate composition |
| DE2815554A1 (de) | 1978-04-11 | 1979-10-25 | Basf Ag | Schwerentflammbare polyurethan-weichschaumstoffe |
| US4237240A (en) | 1979-04-09 | 1980-12-02 | Basf Aktiengesellschaft | Process for the manufacture of flexible polyurethane foams with high load-bearing and high energy-absorption capacity |
| US4287132A (en) | 1980-09-29 | 1981-09-01 | Atlantic Richfield Company | Preparation of polyisocyanates from polycarbamates |
| JP2660588B2 (ja) * | 1989-11-30 | 1997-10-08 | 日本ポリウレタン工業株式会社 | 軟質ポリウレタン発泡体の製造方法 |
| JP2875877B2 (ja) * | 1990-10-23 | 1999-03-31 | 三井化学株式会社 | メチレン架橋ポリフェニレンポリイソシアネートの製造方法 |
| DE4200236A1 (de) * | 1992-01-08 | 1993-07-15 | Bayer Ag | Verfahren zur isolierung von polyisocyanat-isomeren aus polyisocyanatgemischen |
| EP1475367B1 (de) * | 2003-05-08 | 2010-07-07 | Bayer MaterialScience AG | Verfahren zur Destillation eines Gemisches isomerer Diisocyanatodiphenylmethane |
| ATE348120T1 (de) * | 2003-09-24 | 2007-01-15 | Basf Ag | Monomerarmes gemisch, enthaltend polymeres mdi |
| CA2813541C (en) * | 2008-10-06 | 2015-06-02 | Huntsman International Llc | Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series |
| EP3498689A1 (en) * | 2017-12-14 | 2019-06-19 | Sulzer Chemtech AG | A plant and method for purifying an isomeric monomer, such as 4,4'-methylene diphenyl diisocyanate, from a crude mixture |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2105193C3 (de) * | 1971-02-04 | 1981-07-09 | Chemie-Anlagenbau Bischofsheim GmbH, 4500 Osnabrück | Verfahren zur Trennung eines organischen Polyisocyanatgemisches |
-
1973
- 1973-05-29 GB GB2537073A patent/GB1417087A/en not_active Expired
-
1974
- 1974-05-17 IT IT2290574A patent/IT1012607B/it active
- 1974-05-22 NL NL7406894A patent/NL7406894A/xx not_active Application Discontinuation
- 1974-05-23 AR AR25388474A patent/AR202214A1/es active
- 1974-05-24 BE BE144742A patent/BE815525A/xx unknown
- 1974-05-27 BR BR430474A patent/BR7404304D0/pt unknown
- 1974-05-28 JP JP49060178A patent/JPS5826337B2/ja not_active Expired
- 1974-05-28 FR FR7418421A patent/FR2231709B1/fr not_active Expired
- 1974-05-28 DE DE19742425658 patent/DE2425658A1/de not_active Ceased
- 1974-05-29 ES ES426730A patent/ES426730A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1417087A (en) | 1975-12-10 |
| ES426730A1 (es) | 1976-07-01 |
| JPS5826337B2 (ja) | 1983-06-02 |
| FR2231709B1 (cs) | 1978-01-20 |
| BE815525A (fr) | 1974-11-25 |
| DE2425658A1 (de) | 1974-12-19 |
| BR7404304D0 (pt) | 1975-09-30 |
| IT1012607B (it) | 1977-03-10 |
| AR202214A1 (es) | 1975-05-23 |
| FR2231709A1 (cs) | 1974-12-27 |
| JPS5035142A (cs) | 1975-04-03 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BV | The patent application has lapsed |