CH132322A - Method for producing an elastic rubber-like body. - Google Patents

Method for producing an elastic rubber-like body.

Info

Publication number
CH132322A
CH132322A CH132322DA CH132322A CH 132322 A CH132322 A CH 132322A CH 132322D A CH132322D A CH 132322DA CH 132322 A CH132322 A CH 132322A
Authority
CH
Switzerland
Prior art keywords
sulfur
producing
elastic rubber
rubber
elastic
Prior art date
Application number
Other languages
German (de)
Inventor
Baer Jean
Original Assignee
Baer Jean
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 Baer Jean filed Critical Baer Jean
Publication of CH132322A publication Critical patent/CH132322A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G75/00Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
    • C08G75/14Polysulfides
    • C08G75/16Polysulfides by polycondensation of organic compounds with inorganic polysulfides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Description

  

  Verfahren zur Herstellung eines elastischen kautschukartigen     ]Körpers.       Im Hauptpatent Nr. 127540 ist ein Ver  fahren beschrieben, gemäss welchem man zu  einem elastischen kautschukartigen Körper  gelangt, der sich zum Beispiel auch auf den  in der Gummiindustrie gebräuchlichen Ma  schinen wie natürlicher Kautschuk verarbei  ten, sowie mit     Füllstoffen,    zum Beispiel Zink  oxyd, Russ,     Magnesia    usw., sowie mit natür  lichem Kautschuk,     Faktis,        Regeneraten    usw.

    mischen, formen und vulkanisieren lässt, wenn  man Schwefel oder schwefelabgebende Stoffe  auf     Aethylendichlorid    in Gegenwart eines wäs  serigen, alkalischen, alkoholischen oder andern  Lösungsmittels zur Einwirkung bringt.  



  Es wurde nun gefunden, dass man zu einem  ähnlichen     Körper    gelangt, wenn man in  jenem Verfahren, statt     Aethylendichlorid    For  maldehyd verwendet, auf das man Schwefel  oder schwefelabgebende Substanzen in     Poly-          sulfidform,    in der Wärme oder bei gewöhn  licher Temperatur, einwirken lässt. Das erhal  tene Produkt ist ein kautschukartiger elasti  scher, in Schwefelkohlenstoff löslicher Körper.

      <I>Beispiel:</I>  Auf 100 Teile einer wässerigen, alkoho  lischen oder alkalischen Lösung, welche Schwe  fel enthält und zum Beispiel als Lösung von       Schwefelcalcium    in     Polysulfidform    dadurch  erhalten wird, dass man Kalkhydrat mit Schwe  fel und Wasser kocht und die Lösung filtriert,  werden 20 Teile Formaldehyd unter Erwär  men auf zirka<B>100"</B> C. zur Einwirkung ge  bracht. Es entsteht ein kautschukartiger ela  stischer Körper, der in Schwefelkohlenstoff  löslich ist. Die Modifikation des angewandten  Schwefels wird bestimmend für den Grad der  Löslichkeit des gebildeten kautschukartigen  Körpers in Schwefelkohlenstoff. Die Umwand  lung kann auch bei gewöhnlicher Tempe  ratur durch Stehenlassen während einiger Tage  durchgeführt werden.



  Method for producing an elastic rubber-like] body. In the main patent no. 127540 a process is described, according to which one arrives at an elastic rubber-like body, which is also processed, for example, on the machines commonly used in the rubber industry, such as natural rubber, as well as with fillers, for example zinc oxide, soot , Magnesia etc., as well as with natural rubber, factice, regenerated etc.

    mix, shape and vulcanize if you bring sulfur or sulfur-releasing substances on ethylene dichloride in the presence of an aqueous, alkaline, alcoholic or other solvent to act.



  It has now been found that a similar body is obtained if, in that process, instead of ethylene dichloride, formaldehyde is used, on which sulfur or sulfur-releasing substances in polysulphide form are allowed to act in the heat or at the usual temperature. The product obtained is a rubber-like elastic body soluble in carbon disulfide.

      <I> Example: </I> To 100 parts of an aqueous, alcoholic or alkaline solution which contains sulfur and is obtained, for example, as a solution of calcium sulfur in polysulphide form by boiling hydrated lime with sulfur and water and the solution filtered, 20 parts of formaldehyde are brought into action while heating to about <B> 100 "</B> C. The result is a rubber-like, elastic body that is soluble in carbon disulfide. The modification of the sulfur used is decisive for the Degree of solubility of the formed rubbery body in carbon disulfide The conversion can also be carried out at ordinary temperature by allowing it to stand for a few days.

 

Claims (1)

. PATENTANSPRUCH: Verfahren zur Herstellung eines elastischen kautschukartigen Körpers, der in Schwefel kohlenstoff löslich ist, dadurch gekennzeich- net, dass man Schwefel oder schwefelabge bende Stoffe in Polysulfidform auf Formal- dehyd in Gegenwart eines Lösungsmittels zur Einwirkung bringt. . PATENT CLAIM: A process for the production of an elastic, rubber-like body which is soluble in carbon disulfide, characterized in that sulfur or sulfur-releasing substances in polysulfide form are brought into action on formaldehyde in the presence of a solvent.
CH132322D 1927-10-15 1927-10-15 Method for producing an elastic rubber-like body. CH132322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH132322T 1927-10-15

Publications (1)

Publication Number Publication Date
CH132322A true CH132322A (en) 1929-04-15

Family

ID=4390550

Family Applications (1)

Application Number Title Priority Date Filing Date
CH132322D CH132322A (en) 1927-10-15 1927-10-15 Method for producing an elastic rubber-like body.

Country Status (1)

Country Link
CH (1) CH132322A (en)

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