GB1080487A - Improvements in or relating to the manufacture of polyurethane materials - Google Patents
Improvements in or relating to the manufacture of polyurethane materialsInfo
- Publication number
- GB1080487A GB1080487A GB4297364A GB4297364A GB1080487A GB 1080487 A GB1080487 A GB 1080487A GB 4297364 A GB4297364 A GB 4297364A GB 4297364 A GB4297364 A GB 4297364A GB 1080487 A GB1080487 A GB 1080487A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyanuric acid
- oxide
- prepared
- alkylene
- reacted
- 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
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
- C08G18/5054—Polyethers having heteroatoms other than oxygen having nitrogen containing heterocyclic rings having at least one nitrogen atom in the ring
- C08G18/5063—Polyethers having heteroatoms other than oxygen having nitrogen containing heterocyclic rings having at least one nitrogen atom in the ring containing three nitrogen atoms in the ring
Abstract
Polyurethanes are prepared by reacting an organic polyisocyanate with a polyhydroxy compound which is the reaction product of cyanuric acid and an alkylene oxide. Suitable alkylene oxides are ethylene oxide, 1,2-propylene oxide and 1,2-butylene oxide preferably in amounts to provide reaction products containing from 3 to 200 oxyalkylene units for each cyanuric acid residue. Conventional aliphatic, cycloaliphatic and aromatic diisocyanates may be used as well as triisocyanates, reaction products of an excess of a diisocyanate with a polyhydric alcohol, uretedione dimers and isocyanurate polymers of diisocyanates and polyisocyanate compositions obtained by the phosgenation of the mixed polyamine reaction products of formaldehyde and aromatic amines. Foamed polyurethanes may be prepared by incorporating water and/or a low boiling point liquid into the reaction mixture. Suitable low boiling point liquids are hydrocarbons and hydrogenated hydrocarbons having boiling points not exceeding 75 DEG C. Rigid foamed materials may be prepared by using as the polyhydroxy compound a mixture containing from 40 to 90% by weight of a reaction product of cyanuric acid and an alkylene oxide having an OH value of 400 to 600 mg.KOH/g. and from 60 to 10% by weight of another polyhydroxy compound having at least three isocyanate-reactive groups in the molecule and a combined hydroxyl and acid value of from 300 to 600 mg.KOH/g. The latter mentioned polyhydroxyl compounds may be conventional polyethers and polyesters. Catalysts such as tertiary amines and organic compounds of tin, iron, manganese and lead may also be included in the polyurethane-forming reaction mixture. The cyanuric acid may be reacted with an alkylene oxide preferably at temperatures between 100 DEG C. and 140 DEG C. in the presence of a basic catalyst and a solvent. Preferred catalysts are alkali metal hydroxides, calcium hydroxide, sodium carbonate, quaternary ammonium hydroxides and tertiary amines. Suitable solvents are N, N-dimethylformamide, dimethylsulphoxide, formamide and diethyl carbonate. Mixtures of alkylene oxides may be used or the cyanuric acid may be reacted with the alkylene oxides in more than one stage, a different oxide being used at each stage.ALSO:Oxyalkylation products of cyanuric acid may be prepared by reacting an alkylene oxide with cyanuric acid in the presence of a basic catalyst and a solvent for the cyanuric acid. In examples, cyanuric acid is reacted with 1,2 propylene oxide in N,N-dimethylformamide in the presence of (1) sodium hydroxide, and (2) N,N-dimethyl benzylamine as catalyst.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4297364A GB1080487A (en) | 1964-10-21 | 1964-10-21 | Improvements in or relating to the manufacture of polyurethane materials |
| DE19651570816 DE1570816A1 (en) | 1964-10-21 | 1965-10-20 | Process for the production of polyurethane fabrics |
| SE1357465A SE312232B (en) | 1964-10-21 | 1965-10-20 | |
| DK539065A DK113533B (en) | 1964-10-21 | 1965-10-21 | Process for the production of polyurethane foam. |
| FR35757A FR1451002A (en) | 1964-10-21 | 1965-10-21 | Improvements in the manufacture of polyurethanes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4297364A GB1080487A (en) | 1964-10-21 | 1964-10-21 | Improvements in or relating to the manufacture of polyurethane materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1080487A true GB1080487A (en) | 1967-08-23 |
Family
ID=10426786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4297364A Expired GB1080487A (en) | 1964-10-21 | 1964-10-21 | Improvements in or relating to the manufacture of polyurethane materials |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1570816A1 (en) |
| DK (1) | DK113533B (en) |
| GB (1) | GB1080487A (en) |
| SE (1) | SE312232B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4235977A (en) * | 1978-03-04 | 1980-11-25 | Stamicarbon, B.V. | Cross-linked polyurethane elastomers and microcellular foams |
-
1964
- 1964-10-21 GB GB4297364A patent/GB1080487A/en not_active Expired
-
1965
- 1965-10-20 SE SE1357465A patent/SE312232B/xx unknown
- 1965-10-20 DE DE19651570816 patent/DE1570816A1/en active Pending
- 1965-10-21 DK DK539065A patent/DK113533B/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4235977A (en) * | 1978-03-04 | 1980-11-25 | Stamicarbon, B.V. | Cross-linked polyurethane elastomers and microcellular foams |
Also Published As
| Publication number | Publication date |
|---|---|
| DK113533B (en) | 1969-03-31 |
| DE1570816A1 (en) | 1970-02-05 |
| SE312232B (en) | 1969-07-07 |
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