ES484049A1 - Procedure for the obtaining of non-corrosive phenolic foams (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the obtaining of non-corrosive phenolic foams (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES484049A1 ES484049A1 ES484049A ES484049A ES484049A1 ES 484049 A1 ES484049 A1 ES 484049A1 ES 484049 A ES484049 A ES 484049A ES 484049 A ES484049 A ES 484049A ES 484049 A1 ES484049 A1 ES 484049A1
- Authority
- ES
- Spain
- Prior art keywords
- weight
- formaldehyde
- phenol
- parts
- translation
- 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
Process for obtaining non-corrosive phenolic foams, essentially characterized in that it consists of mixing a liquid resin of phenol-formaldehyde of the resol type, obtained by condensation of phenol and formaldehyde in basic medium, with a sulfonated novolac, obtained in turn by sulfenating a novolak of phenol-formaldehyde or by condensation of an aromatic sulfonic acid with formaldehyde; with the particularity that a foaming agent and a surfactant agent are added to said mass; the ideal proportion of the mixture being provided as follows: 10 to 60 parts by weight of sulfonated novolac; 100 parts by weight of liquid phenol-formaldehyde resin of the resol type; 2 to 10 parts by weight of foaming agent per 100 parts by weight of mixture and 0.5 to 2% by weight of surfactant; in such a way that the mixture of the mentioned components is beaten in suitable molds without external contribution of heat. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES484049A ES484049A1 (en) | 1979-09-10 | 1979-09-10 | Procedure for the obtaining of non-corrosive phenolic foams (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES484049A ES484049A1 (en) | 1979-09-10 | 1979-09-10 | Procedure for the obtaining of non-corrosive phenolic foams (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES484049A1 true ES484049A1 (en) | 1980-04-16 |
Family
ID=8478932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES484049A Expired ES484049A1 (en) | 1979-09-10 | 1979-09-10 | Procedure for the obtaining of non-corrosive phenolic foams (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES484049A1 (en) |
-
1979
- 1979-09-10 ES ES484049A patent/ES484049A1/en not_active Expired
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