CH109656A - Process for the preparation of a resin which can be used as a protective and insulating varnish, impregnation agent, adhesive and the like. - Google Patents
Process for the preparation of a resin which can be used as a protective and insulating varnish, impregnation agent, adhesive and the like.Info
- Publication number
- CH109656A CH109656A CH109656DA CH109656A CH 109656 A CH109656 A CH 109656A CH 109656D A CH109656D A CH 109656DA CH 109656 A CH109656 A CH 109656A
- Authority
- CH
- Switzerland
- Prior art keywords
- resin
- protective
- adhesive
- preparation
- insulating varnish
- Prior art date
Links
- 239000011347 resin Substances 0.000 title claims description 11
- 229920005989 resin Polymers 0.000 title claims description 11
- 239000003795 chemical substances by application Substances 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 5
- 239000000853 adhesive Substances 0.000 title claims description 4
- 230000001070 adhesive effect Effects 0.000 title claims description 4
- 238000005470 impregnation Methods 0.000 title claims description 4
- 230000001681 protective effect Effects 0.000 title claims description 4
- 239000002966 varnish Substances 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000012345 acetylating agent Substances 0.000 claims description 2
- 239000003085 diluting agent Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- -1 sulfur halides Chemical class 0.000 claims description 2
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000021736 acetylation Effects 0.000 description 2
- 238000006640 acetylation reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/02—Polythioethers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Description
Verfahren zur Darstellung eines als Schutz- und Isolierlack, Imprägnierungsmittel, Klebstoff und dergleichen verwendbaren Harzes: Gemäss dem Zusatzpatent Nr. 106471 kann man zu einem als Schutz- und Isolie-r- lack, Imprägnierungsmittel, Klebstoff und dergleichen verwendbaren Harz gelangen, indem man das durch Sch.wefelung von a-Naphthol erhaltene Harz mit Acetylie- rungsmitteln behandelt.
Es wurde nun gefunden, dass es nicht notwendig ist, von dem fertigen alkali- und alkohollöslichen Schwefelharz auszugehcn und dasselbe durch Acetylierung in das Esterharz überzuführen, sondern, dass es möglich ist, den Verha.rzungsprozess und die Veresterung in einem Arbeitsgang durchzufüh-, ren, indem man das als Ausgangsstoff des ge nannten Schwefelharzes dienende a-Naphthol,
gegebenenfalls in Gegenwart von Wasser, wässorigen Alkalien oder andern Lösungs- oder Verdünnungsmitteln, gleichzeitig mit S:chwüfelhalageniden und Acetylierungsmit- teln bezw. mit Gemischen beider behandelt.
Die Reinigung des so erhaltenen Harzes erfolgt, wie im Hauptpatent angegeben. Die Eigenschaften dieses Harzes sind denjenigen des im Hauptpatent .beschriebenen identisch. Beispiel: 144 Teile a-Naphthol werden in 204 Tei len Essigsäureanhydrid gelöst und vorsichtig unter Rühren mit 1.35 Teilen Schwefel- ehlorür versetzt. Nach beendeter Reaktion wird die Salzsäure möglichst voUs.tändig ver trieben.
Die letzten Reste derselben, sowie sonstige flüchtige Verbindungen werden zweckmässig im Vakuum entfernt. Unter Umständen kann auch eine Waschung mit Wasser bis zur neutralen Reaktion ange- s chlossen werden. Das erhaltene Harz wird bei nicht zu hoher Temperatur getrocknet.
Process for the preparation of a resin that can be used as a protective and insulating varnish, impregnation agent, adhesive and the like: According to additional patent no. 106471, a resin that can be used as protective and insulating varnish, impregnation agent, adhesive and the like can be obtained by resin obtained by sulfurization of a-naphthol treated with acetylation agents.
It has now been found that it is not necessary to start from the finished alkali and alcohol-soluble sulfur resin and convert it into the ester resin by acetylation, but that it is possible to carry out the hardening process and the esterification in one operation by using the a-naphthol, which serves as the starting material of the sulfur resin mentioned,
optionally in the presence of water, aqueous alkalis or other solvents or diluents, simultaneously with sulfur halides and acetylating agents respectively. treated with mixtures of both.
The resin obtained in this way is purified as indicated in the main patent. The properties of this resin are identical to those described in the main patent. Example: 144 parts of a-naphthol are dissolved in 204 parts of acetic anhydride and 1.35 parts of sulfuric acid are carefully added with stirring. After the reaction has ended, the hydrochloric acid is expelled as completely as possible.
The last remnants of the same and other volatile compounds are expediently removed in vacuo. Under certain circumstances, washing with water until a neutral reaction can be followed. The resin obtained is dried at a temperature that is not too high.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH103432T | 1922-09-01 | ||
| CH109656T | 1923-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH109656A true CH109656A (en) | 1925-04-16 |
Family
ID=25706481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH109656D CH109656A (en) | 1922-09-01 | 1923-10-31 | Process for the preparation of a resin which can be used as a protective and insulating varnish, impregnation agent, adhesive and the like. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH109656A (en) |
-
1923
- 1923-10-31 CH CH109656D patent/CH109656A/en unknown
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