AT41429B - Process for the production of raw rubber solutions. - Google Patents

Process for the production of raw rubber solutions.

Info

Publication number
AT41429B
AT41429B AT41429DA AT41429B AT 41429 B AT41429 B AT 41429B AT 41429D A AT41429D A AT 41429DA AT 41429 B AT41429 B AT 41429B
Authority
AT
Austria
Prior art keywords
sep
raw rubber
production
rubber solutions
solutions
Prior art date
Application number
Other languages
German (de)
Inventor
Emil Fischer
Original Assignee
Emil Fischer
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
Priority claimed from DE1907211186D external-priority patent/DE211186C/de
Application filed by Emil Fischer filed Critical Emil Fischer
Application granted granted Critical
Publication of AT41429B publication Critical patent/AT41429B/en

Links

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  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung von Rohkautschuklösungen. 



   Für den Rohkautschuk sind bisher zahlreiche   Lösungsmittel   in Vorschlag gebracht worden, von denen aber nur wenige, wie z.   H.   Schwefelkohlenstoff, Benzin, Chloroform, 
 EMI1.1 
 Lösungsmitteln nicht ausreicht oder hierbei nur Quellungen anstatt Lösungen erhalten werden. 
 EMI1.2 
 beweisen. 



   Es wurden von je 10 g zweier rohkautschuksorten nach 24-stündigem Stehen bei gewöhnlicherTmeperaturmit250cm3LösungsmittelunteröfterenUmschlüttelnfolgende   Kautschukmeugen   in Lösung gebracht : 
 EMI1.3 
 
<tb> 
<tb> Para <SEP> robkautschuk <SEP> Bornso-rohkautschuk
<tb> Dichloräthylen <SEP> (1,2694 <SEP> spez. <SEP> Gew.) <SEP> . <SEP> . <SEP> . <SEP> . <SEP> 99.5% <SEP> 95.9%
<tb> Tetrachloräthan <SEP> (1,588 <SEP> spez. <SEP> Gew.) <SEP> . <SEP> . <SEP> . <SEP> . <SEP> 75.6% <SEP> 46.4%
<tb> Chleroform <SEP> (1,494 <SEP> spez. <SEP> Gew) <SEP> . <SEP> . <SEP> . <SEP> . <SEP> . <SEP> . <SEP> 74.9% <SEP> 56.8%
<tb> 
 
 EMI1.4 
 vermögen für Rokautschuk.

   Die damit erhaltenen   Lösungen, auch die konzeutriertesten,   sind   völlig homogeu   und frei von   Kiumpenbildungen   ;
2. infolge des   niedrigen Siedepunktes eine grössere Flüchtigkeit   ;   H.   es ist nicht brennbar und entwickelt   keine explosiblen   Gasgemische oder Dämpfe beim   Erwärmen :  
4. es besitzt ein niedrigers spezifisches Gewicht als diejenigen bekannten Lösungs- 
 EMI1.5 
 

 <Desc/Clms Page number 2> 

 



   Beispiel :
Zur Bereitung einer etwa 3%igen para-Rohkaustschuklösung gibt man zu 100 g zer-   kleinerten Rohkautschuk 2,   5 1 Dichloräthylen und lässt das Gemisch unter häufigem Umschütteln stehen, bis die gleichmässige Lösung entstanden ist.



   <Desc / Clms Page number 1>
 



  Process for the production of raw rubber solutions.



   For the raw rubber, numerous solvents have been proposed so far, but only a few, such as. H. carbon disulfide, gasoline, chloroform,
 EMI1.1
 Solvents are not sufficient or only swellings instead of solutions are obtained.
 EMI1.2
 to prove.



   After standing for 24 hours at normal temperature with 250 cm3 of solvent, 10 g of two types of raw rubber each were brought into solution, with repeated shaking:
 EMI1.3
 
<tb>
<tb> Para <SEP> rob rubber <SEP> Bornso raw rubber
<tb> dichloroethylene <SEP> (1.2694 <SEP> spec. <SEP> wt.) <SEP>. <SEP>. <SEP>. <SEP>. <SEP> 99.5% <SEP> 95.9%
<tb> Tetrachloroethane <SEP> (1.588 <SEP> spec. <SEP> wt.) <SEP>. <SEP>. <SEP>. <SEP>. <SEP> 75.6% <SEP> 46.4%
<tb> Chleroform <SEP> (1.494 <SEP> spec. <SEP> wt) <SEP>. <SEP>. <SEP>. <SEP>. <SEP>. <SEP>. <SEP> 74.9% <SEP> 56.8%
<tb>
 
 EMI1.4
 fortune for rok rubber.

   The solutions thus obtained, even the most concentrated ones, are completely homogeneous and free from the formation of Kiumpen;
2. greater volatility due to the low boiling point; H. It is not flammable and does not develop explosive gas mixtures or vapors when heated:
4. It has a lower specific gravity than those known solutions
 EMI1.5
 

 <Desc / Clms Page number 2>

 



   Example:
To prepare an approximately 3% para-raw caustic solution, add 2.5 liters of dichloroethylene to 100 g of crushed raw rubber and let the mixture stand, shaking frequently, until the solution is even.

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Herstellung von Rohkautschuklösungen, dadurch gekennzeichnet, dass man den Rohkautschuk mit symmetrischem Dichloräthylen ohne oder mit Anwendung von Wärme behandelt. PATENT CLAIM: Process for the production of raw rubber solutions, characterized in that the raw rubber is treated with symmetrical dichloroethylene with or without the application of heat.
AT41429D 1907-01-19 1909-03-29 Process for the production of raw rubber solutions. AT41429B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1907211186D DE211186C (en) 1907-01-19

Publications (1)

Publication Number Publication Date
AT41429B true AT41429B (en) 1910-03-25

Family

ID=5801303

Family Applications (1)

Application Number Title Priority Date Filing Date
AT41429D AT41429B (en) 1907-01-19 1909-03-29 Process for the production of raw rubber solutions.

Country Status (1)

Country Link
AT (1) AT41429B (en)

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