SU98793A1 - The method of obtaining phenol-formaldehyde resin - Google Patents
The method of obtaining phenol-formaldehyde resinInfo
- Publication number
- SU98793A1 SU98793A1 SU448229A SU448229A SU98793A1 SU 98793 A1 SU98793 A1 SU 98793A1 SU 448229 A SU448229 A SU 448229A SU 448229 A SU448229 A SU 448229A SU 98793 A1 SU98793 A1 SU 98793A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- formaldehyde resin
- phenol
- formaldehyde
- resin
- obtaining phenol
- Prior art date
Links
Description
ФенОЛьно-формальдегидные смолы , примен емые в производстве спиртовых лаков, получают путем конденсации фенола или крезола с формальдегидом в присзтствии кислых катализаторов.Phenol-formaldehyde resins used in the manufacture of alcohol varnishes are obtained by condensing phenol or cresol with formaldehyde in the presence of acidic catalysts.
Предлагаемый способ получени фепольно-формальдегидной смолы заключаетс в том, что кондепсацию фенола с формальдегидом провод т с избытком формальдегида (резольног соотношение комнонентов ) в среде скипидара в присутствии в качестве катализатора серной кислоты. При этом образуетс растворима в спирте смола, лаковые покрыти из которой не уступают покрыти м из обычных фенольноформальдегидных лаков.The proposed method for the preparation of the PEPO-formaldehyde resin is that the phenol-formaldehyde is condensed with an excess of formaldehyde (rezolnog ratio of components) in turpentine in the presence of sulfuric acid as a catalyst. This produces a resin that is soluble in alcohol, the lacquer coatings of which are not inferior to those of conventional phenol-formaldehyde lacquers.
Преимуществом предлагаемого способа получени смолы вл етс то, что в качестве одного из компонентов примен ют доступное сырье - скипидар, за счет которого увеличиваетс выход смолы.An advantage of the proposed method for producing a resin is that an available raw material, turpentine, is used as one of the components, which increases the yield of the resin.
Примерный состав фенольно-формальдегидной смолы:The approximate composition of the phenol-formaldehyde resin:
Фенол2 кгPhenol2 kg
Формалин 31%-нын .... 4,7кг Скипидар живичный .... 2 кг Серна кислота 70%-на . . . 15-25 сFormalin 31% sul .... 4.7 kg Turpentine zhivichny .... 2 kg Sulfuric acid 70% sna. . . 15-25 s
Процесс конденсации проводитс при температуре кипени смеси (97-98°). По окончанни конденсации смола обезвоживаетс до полной прозрачности и выдерживаетс при нагревании до достижени требуемой температуры плавлени .The condensation process is carried out at the boiling point of the mixture (97-98 °). Upon completion of the condensation, the resin is dewatered to full transparency and maintained when heated to the desired melting point.
Предмет изобретени Subject invention
Способ получени феиольно-формальдегидной смолы путем однофазной конденсации фенола с формальдегидом при избытке последнего в присутствии серной кислоты, отлич а ю ид и и с тем, что, с целью получени спирторастворимой смолы, конденсацию провод т в среде скппидара .The method of obtaining feiol-formaldehyde resin by single-phase condensation of phenol with formaldehyde with an excess of the latter in the presence of sulfuric acid is different from the fact that, in order to obtain an alcohol-soluble resin, the condensation is carried out in scppidar medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU448229A SU98793A1 (en) | 1952-02-12 | 1952-02-12 | The method of obtaining phenol-formaldehyde resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU448229A SU98793A1 (en) | 1952-02-12 | 1952-02-12 | The method of obtaining phenol-formaldehyde resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU98793A1 true SU98793A1 (en) | 1953-11-30 |
Family
ID=48373163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU448229A SU98793A1 (en) | 1952-02-12 | 1952-02-12 | The method of obtaining phenol-formaldehyde resin |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU98793A1 (en) |
-
1952
- 1952-02-12 SU SU448229A patent/SU98793A1/en active
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