AT67676B - Process for gelatinizing or dissolving carbohydrate esters. - Google Patents

Process for gelatinizing or dissolving carbohydrate esters.

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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
Application number
Other languages
German (de)
Original Assignee
E J Dupont De Nemours Powder C
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by E J Dupont De Nemours Powder C filed Critical E J Dupont De Nemours Powder C
Application granted granted Critical
Publication of AT67676B publication Critical patent/AT67676B/en

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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,   
 EMI1.3 
   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-   
 EMI1.4 
 zweck entsprechend, der Masse verschiedene Stoffe beigemischt werden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  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
 EMI1.1
 Acetaldehyde can be obtained.



   Acetaldol is a colorless, water-soluble liquid whose viscosity is approximately
 EMI1.2
 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,
 EMI1.3
   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
 EMI1.4
 according to the purpose, different substances are added to the mass.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

Obwohl im vorstehenden Ausführungsbeispiel speziell Azetaldol und Pyroxyle angeführt wurden, so beschrankt sich das Verfahren nach der vorliegenden Erfindung selbstverständlich nicht auf diese/wei Stoffe, sondern umfasst auch die Verwendung anderer Aidole und Eohlehydratester PATENT-ANSPRUCH : Verfahren zur Gelatinii ; ierung oder Auflösung \ on Kohlehydratestern. beispielsweise Nttrozellulose, dadurch gekennzeichnet, dass als Lösungs- oder Gelatinisierungsmittel Aldole, z. B. Azetaldol, angewendet werden. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. Although acetaldol and pyroxyls were specifically mentioned in the above exemplary embodiment, the process according to the present invention is of course not limited to these substances, but also includes the use of other aidols and carbohydrate esters PATENT CLAIM: Method for Gelatinii; ization or dissolution of carbohydrate esters. for example Nttrocellulose, characterized in that as a solvent or gelatinizing agent aldols, z. B. acetaldol, are used. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT67676D 1912-10-10 1912-10-10 Process for gelatinizing or dissolving carbohydrate esters. AT67676B (en)

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)

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