FR2381077A1 - Procede de fabrication de polyurethanes a partir d'uree - Google Patents
Procede de fabrication de polyurethanes a partir d'ureeInfo
- Publication number
- FR2381077A1 FR2381077A1 FR7700831A FR7700831A FR2381077A1 FR 2381077 A1 FR2381077 A1 FR 2381077A1 FR 7700831 A FR7700831 A FR 7700831A FR 7700831 A FR7700831 A FR 7700831A FR 2381077 A1 FR2381077 A1 FR 2381077A1
- Authority
- FR
- France
- Prior art keywords
- urea
- alkylene oxide
- prods
- prepd
- esp
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
- C08G18/5036—Polyethers having heteroatoms other than oxygen having nitrogen containing -N-C=O groups
- C08G18/5042—Polyethers having heteroatoms other than oxygen having nitrogen containing -N-C=O groups containing ureum groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
- C08G18/3823—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing -N-C=O groups
- C08G18/3829—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing -N-C=O groups containing ureum groups
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
L'invention a pour objet un procédé de fabrication de polyuréthanes résistant l'inflammation. Ce procédé consiste, dans une première étape, à fixer de l'oxyde de propylène sur de l'urée en solution dans un solvant de caractère basique, puis, dans une seconde étape, à faire réagir la solution d'urée oxyalcoylénée avec un ou plusieurs polyisocyanates organiques. Le procédé est particulièrement applicable à la fabrication de mousses rigides de polyuréthane.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7700831A FR2381077A1 (fr) | 1977-01-13 | 1977-01-13 | Procede de fabrication de polyurethanes a partir d'uree |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7700831A FR2381077A1 (fr) | 1977-01-13 | 1977-01-13 | Procede de fabrication de polyurethanes a partir d'uree |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2381077A1 true FR2381077A1 (fr) | 1978-09-15 |
Family
ID=9185430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7700831A Withdrawn FR2381077A1 (fr) | 1977-01-13 | 1977-01-13 | Procede de fabrication de polyurethanes a partir d'uree |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2381077A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0135832A2 (fr) * | 1983-09-10 | 1985-04-03 | Bayer Ag | Utilisation de polyhydroxyalkyl-mono-urées dans des mousses de polyuréthane, dispersions des polyhydroxyalkyl-mono-urées dans des polyols et tris-hydroxyalkyl-mono-urées |
US4874797A (en) * | 1985-10-08 | 1989-10-17 | Bayer Aktiengesellschaft | Oligourea polyols, polyether polyols produced from them and the use of these polyols in the isocyanate polyaddition process |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1369677A (fr) * | 1962-09-19 | 1964-08-14 | Bayer Ag | Procédé de fabrication de produits mousse contenant des groupes uréthane |
FR1411269A (fr) * | 1963-08-28 | 1965-09-17 | Bayer Ag | Procédé de fabrication de mousses contenant des groupes uréthane |
FR1475063A (fr) * | 1965-03-19 | 1967-03-31 | Pittsburgh Plate Glass Co | Nouvelle composition de résine |
-
1977
- 1977-01-13 FR FR7700831A patent/FR2381077A1/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1369677A (fr) * | 1962-09-19 | 1964-08-14 | Bayer Ag | Procédé de fabrication de produits mousse contenant des groupes uréthane |
FR1411269A (fr) * | 1963-08-28 | 1965-09-17 | Bayer Ag | Procédé de fabrication de mousses contenant des groupes uréthane |
FR1475063A (fr) * | 1965-03-19 | 1967-03-31 | Pittsburgh Plate Glass Co | Nouvelle composition de résine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0135832A2 (fr) * | 1983-09-10 | 1985-04-03 | Bayer Ag | Utilisation de polyhydroxyalkyl-mono-urées dans des mousses de polyuréthane, dispersions des polyhydroxyalkyl-mono-urées dans des polyols et tris-hydroxyalkyl-mono-urées |
EP0135832A3 (en) * | 1983-09-10 | 1985-10-02 | Bayer Ag | Use of polyhydroxyalkyl mono-urea for polyurethane foams, dispersions of the polyhydroxyalkyl mono-urea in polyols and tris-hydroxyalkyl mono-urea |
US4546121A (en) * | 1983-09-10 | 1985-10-08 | Bayer Aktiengesellschaft | Use of polyhydroxyalkyl monoureas for polyurethane foams, dispersions of the polyhydroxyalkyl monoureas in polyols and new tris-hydroxyalkyl monoureas |
US4874797A (en) * | 1985-10-08 | 1989-10-17 | Bayer Aktiengesellschaft | Oligourea polyols, polyether polyols produced from them and the use of these polyols in the isocyanate polyaddition process |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |