SU482475A1 - The method of obtaining phenol-furan binder - Google Patents
The method of obtaining phenol-furan binderInfo
- Publication number
- SU482475A1 SU482475A1 SU2026027A SU2026027A SU482475A1 SU 482475 A1 SU482475 A1 SU 482475A1 SU 2026027 A SU2026027 A SU 2026027A SU 2026027 A SU2026027 A SU 2026027A SU 482475 A1 SU482475 A1 SU 482475A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- furan binder
- phenol
- obtaining phenol
- binder
- obtaining
- Prior art date
Links
Description
вого спирта 2,0-3,0%, содержание гидроксильных групп 8,0-10,0%.alcohol 2,0-3,0%, the content of hydroxyl groups of 8.0-10.0%.
К 150 г получепного олигомера последовательно При перемешивапии добавл ют 350 г фенолоспирта и продолжают кондепсацию 2 час при 80-85°С и рН 8,0-9,0. Затем обратный холодильник переключают на пр мой и отгон ют воду при 70°С и остаточном давлении 250-300 мм рт. ст. Отгон прекрапдают, когда в зкость смолы достигнет 50-120 сек по вискозиметру ВЗ-4.To 150 g of the obtained oligomer, 350 g of phenol-alcohol are added successively under stirring and the condensation is continued for 2 hours at 80-85 ° C and pH 8.0-9.0. Then the reflux condenser is switched to direct and water is distilled off at 70 ° C and a residual pressure of 250-300 mm Hg. Art. The distillation is stopped when the viscosity of the resin reaches 50-120 seconds using the OT-4 viscometer.
Свойства св зующего, полученного по примеру 1, и стержневых смесей с его использованием приведены в таблице.The properties of the binder obtained in example 1, and core mixtures with its use are shown in the table.
Пример ы 2-4. Методика опытов аналогична npHMenv 1, мен ютс лишь реагенты и их количества:Example s 2-4. The experimental procedure is similar to npHMenv 1, only the reagents and their amounts are changed:
Пример 2 - 200 г олигамера + 300 г фенолоспирта .Example 2 - 200 g of oligamer + 300 g of phenol-alcohol.
Пример 3-150 г олигомера+300 г фенолоспирта-|-50 г мочевиноформальдегидной смолы.Example 3-150 g of oligomer + 300 g of phenol-alcohol - | -50 g of urea-formaldehyde resin.
Пример 4 - 200 г олигомера+ 200 г фенолоспирта+ЮО г мочевиноформальдегидной смолы.Example 4 - 200 g of oligomer + 200 g of phenol-alcohol + 10 g of urea-formaldehyde resin.
Свойства св -зующих, полученных по -примерам 2-4, и стержневых смесей с их использованием приведены в таблице.Properties sv-zyuschih, obtained in examples 2-4, and core mixtures with their use are shown in the table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2026027A SU482475A1 (en) | 1974-05-22 | 1974-05-22 | The method of obtaining phenol-furan binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2026027A SU482475A1 (en) | 1974-05-22 | 1974-05-22 | The method of obtaining phenol-furan binder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU482475A1 true SU482475A1 (en) | 1975-08-30 |
Family
ID=20585119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2026027A SU482475A1 (en) | 1974-05-22 | 1974-05-22 | The method of obtaining phenol-furan binder |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU482475A1 (en) |
-
1974
- 1974-05-22 SU SU2026027A patent/SU482475A1/en active
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