ES8800317A1 - Phenol-aldehyde foams resistant to flame penetration - Google Patents
Phenol-aldehyde foams resistant to flame penetrationInfo
- Publication number
- ES8800317A1 ES8800317A1 ES544363A ES544363A ES8800317A1 ES 8800317 A1 ES8800317 A1 ES 8800317A1 ES 544363 A ES544363 A ES 544363A ES 544363 A ES544363 A ES 544363A ES 8800317 A1 ES8800317 A1 ES 8800317A1
- Authority
- ES
- Spain
- Prior art keywords
- weight
- phenol
- foams
- resin
- flame penetration
- 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
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Improved resol resin compositions which are suitable for obtaining phenol foams having generally closed cells which have a K factor of less than 0.029 watts/(m.K), preferably from 0.017 to 0.024 watts/(m.K) of foam thickness when measured at 24 degree C are prepared, for which purpose a resol resin precursor is rectified to a water content of less than 7% by weight, preferably from 3 to around 6% by weight based on the weight of resin. Also included in a foam-forming formulation are a viscosity- adjusting quantity of a solvent such as phenol and 10 to 20% by weight of a polyglycol based on the weight of the resin. Surfactants, expanding agents and conventional acid catalysts are used to prepare the foams. The foams prepared using these resins do not in general have any tendency to self-oxidise when placed in a stove heated to a temperature of 250 degree C, and have better resistance to flame penetration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES544363A ES8800317A1 (en) | 1985-06-19 | 1985-06-19 | Phenol-aldehyde foams resistant to flame penetration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES544363A ES8800317A1 (en) | 1985-06-19 | 1985-06-19 | Phenol-aldehyde foams resistant to flame penetration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES8800317A1 true ES8800317A1 (en) | 1987-11-01 |
| ES544363A0 ES544363A0 (en) | 1987-11-01 |
Family
ID=8489383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES544363A Expired ES8800317A1 (en) | 1985-06-19 | 1985-06-19 | Phenol-aldehyde foams resistant to flame penetration |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES8800317A1 (en) |
-
1985
- 1985-06-19 ES ES544363A patent/ES8800317A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES544363A0 (en) | 1987-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19970519 |