GB964266A - Improvements in and relating to polyurethane resins - Google Patents
Improvements in and relating to polyurethane resinsInfo
- Publication number
- GB964266A GB964266A GB4299261A GB4299261A GB964266A GB 964266 A GB964266 A GB 964266A GB 4299261 A GB4299261 A GB 4299261A GB 4299261 A GB4299261 A GB 4299261A GB 964266 A GB964266 A GB 964266A
- Authority
- GB
- United Kingdom
- Prior art keywords
- propylene oxide
- tris
- oxide condensate
- phosphate
- polyols
- 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
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
A process for the production of flame-resistant polyurethane foams comprises reacting a polyether having at least two hydroxyl groups and a molecular weight from 250 to 5000 and an organic polyisocyanate or polyisothiocyanate in the presence of a catalyst, a blowing agent and, as a flame-proofing additive, 0.5 to 10% by weight, based on the weight of the polyether and polyisocyanate or polyisothiocyanate, of tris (2,3-bibromopropyl)-phosphate. Antimony trioxide may be used in conjunction with the phosphate. Water and fluorocarbons are specified blowing agents. Suitable polyethers are reaction products of alkylene oxides with water, glycols, polyols, glycosides, sucrose, di, tri and tetraphenylol compounds, mono- and polynuclear and fused aromatic polyamines, novolaks and acyclic polyamines. Polyfunctional compounds such as aliphatic polyols can be blended with the polyethers before the reaction. Catalysts listed are stannous acylates, alkoxides, phenoxides and cresoxides; dialkyl tin carboxylates, chlorides or oxides and trialkyl tin hydroxides. A siloxaneoxyalkylene copolymer can be used as an emulsifying agent. In examples of the preparation of foams various amounts of the tris (2,3-dibromo propyl) phosphate together in some cases, with antimony trioxide are added to the reaction mixture. This comprises polyol mixture, prepolymer prepared from the polyol and excess tolylene diisocyanates, surfactant, dibutyl tin dilaurate, silicone and trichlorofluoromethane. Polyols used are (1) to (3), (5) and (6) a propylene oxide adduct of 1,1,3-tris-hydroxyphenyl, propane mixed with (1) hexanetriol, (2) and (5) glycerol/propylene oxide condensate, (3) di-ethylenetriamine/propylene oxide condensate, (6) 1,2,6-hexanetriol; (4) sorbitol/propylene oxide condensate; (7) methyl glucoside/propylene oxide condensate; (8) 4,41-diaminodiphenylmethane/propylene oxide. In (7) N,N,N1,N1-tetramethyl-1,3-butane diamine is also present as a catalyst. Specifications 666,732, 701,794 and 804,369 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7949060A | 1960-12-30 | 1960-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB964266A true GB964266A (en) | 1964-07-22 |
Family
ID=22150888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4299261A Expired GB964266A (en) | 1960-12-30 | 1961-12-01 | Improvements in and relating to polyurethane resins |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1156227B (en) |
| GB (1) | GB964266A (en) |
| NL (1) | NL273076A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3461086A (en) * | 1964-03-05 | 1969-08-12 | Dow Chemical Co | Polyether urethane foams from certain heteric polyethers |
| DE1229289B (en) * | 1965-01-22 | 1966-11-24 | Bayer Ag | Process for the manufacture of plastics containing urethane groups, including foams |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1043630B (en) * | 1955-12-24 | 1958-11-13 | Phoenix Gummiwerke Ag | Process for the production of rigid, flame-retardant foam plastics |
-
0
- NL NL273076D patent/NL273076A/xx unknown
-
1961
- 1961-12-01 GB GB4299261A patent/GB964266A/en not_active Expired
- 1961-12-23 DE DEU8567A patent/DE1156227B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL273076A (en) | |
| DE1156227B (en) | 1963-10-24 |
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