AT67676B - Process for gelatinizing or dissolving carbohydrate esters. - Google Patents
Process for gelatinizing or dissolving carbohydrate esters.Info
- Publication number
- AT67676B AT67676B AT67676DA AT67676B AT 67676 B AT67676 B AT 67676B AT 67676D A AT67676D A AT 67676DA AT 67676 B AT67676 B AT 67676B
- Authority
- AT
- Austria
- Prior art keywords
- gelatinizing
- carbohydrate esters
- acetaldol
- esters
- dissolving
- Prior art date
Links
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Gelatinisierung oder Auflösung von Kohlehydratestern.
Die Erfindung bezieht sich auf ein Verfahren zur Gelatinisierung oder Auflösung \on Estern der Kohlehydrate, beispielsweise Nitrozellulose, und kann in verschiedenen Industrien, welche Kohlehydratester verarbeiten, Anwendung finden und erweist sich besonders dort von Nutzen, wo geformte Gegenstände aus solchen Estern, beispielsweise Pyroxylin, hergestellt werden sollen oder Flächen damit zu überziehen sind.
Die Lösungs- und Gelatinisierungsmittel, welche gemäss der Erfindung angewendet werden, gehören zur Gruppe der Aldehydalkohole oder Aldole. Während alle Körper dieser Gruppe im Sinne der Erfindung benutzt werden können, ist es doch vorteilhaft,
EMI1.1
Azetaldehyd gewonnen werden.
Azetaldol ist eine farblose, in Wasser lösliche Flüssigkeit, deren Viskosität etwa
EMI1.2
während die Zersetzung erst bei einer weit höheren Temperatur beginnt.
Es wurde gefunden, dass Aldole, beispielsweise Azetaldol. Kohlehydratester lösen und mit Leichtigkeit gelatinisieren. Der Lösungs- oder Gelatinisierungsvorgang wird durch Temperaturerhöhung beschleunigt. Wird beispielsweise Pyroxylin mit Azetaldol behandelt,
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Azetatdol eine fur viele Zwecke brauchbare Lösung. Die Auftösung geht beim Erwarmen mit Leichtigkeit vor sich. Die Zähflussigkelt der erhaltenen Lösung richtet sich nach dem Verhältnis des Azetaldols zur angewandten Menge Ester. Man kann auf diese Art sehr brauchbare Pyroxylingallerten und plastische. pyroxylinhaltige Massen, welche zur Er-
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zweck entsprechend, der Masse verschiedene Stoffe beigemischt werden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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Process for gelatinizing or dissolving carbohydrate esters.
The invention relates to a process for gelatinizing or dissolving esters of carbohydrates, for example nitrocellulose, and can be used in various industries which process carbohydrate esters and is particularly useful where molded articles made from such esters, for example pyroxyline, are to be produced or surfaces are to be coated with it.
The solvents and gelatinizing agents which are used according to the invention belong to the group of the aldehyde alcohols or aldols. While all bodies of this group can be used in the sense of the invention, it is nevertheless advantageous
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Acetaldehyde can be obtained.
Acetaldol is a colorless, water-soluble liquid whose viscosity is approximately
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while the decomposition only begins at a much higher temperature.
It has been found that aldols, for example acetaldol. Dissolve carbohydrate esters and gelatinize with ease. The dissolution or gelatinization process is accelerated by increasing the temperature. For example, if pyroxyline is treated with acetaldol,
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Acetate dol is a useful solution for many purposes. Dissolution takes place with ease upon warming. The viscosity of the solution obtained depends on the ratio of acetaldol to the amount of ester used. In this way one can produce very useful pyroxyling jellies and plastic ones. pyroxylin-containing masses, which are
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according to the purpose, different substances are added to the mass.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT67676T | 1912-10-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT67676B true AT67676B (en) | 1915-01-25 |
Family
ID=3589551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT67676D AT67676B (en) | 1912-10-10 | 1912-10-10 | Process for gelatinizing or dissolving carbohydrate esters. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT67676B (en) |
-
1912
- 1912-10-10 AT AT67676D patent/AT67676B/en active
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