CH132515A - Method for producing an elastic, rubber-like body. - Google Patents

Method for producing an elastic, rubber-like body.

Info

Publication number
CH132515A
CH132515A CH132515DA CH132515A CH 132515 A CH132515 A CH 132515A CH 132515D A CH132515D A CH 132515DA CH 132515 A CH132515 A CH 132515A
Authority
CH
Switzerland
Prior art keywords
rubber
sulfur
elastic
producing
polysulphide
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 CH132515A publication Critical patent/CH132515A/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)
  • Processes Of Treating Macromolecular Substances (AREA)

Description

  

  Verfahren zur Herstellung eines     elastisehen,        hautschukartigen    Körpers.    Im Hauptpatent ist ein Verfahren be  schrieben, gemäss welchem man zu einem  elastischen, kautschukartigen Körper gelangt,  der sich zum Beispiel auch auf den in der  Gummiindustrie gebräuchlichen Maschinen  wie natürlicher Kautschuk verarbeiten, sowie  mit Füllstoffen, zum Beispiel Zinkoxyd, Russ;  Magnesia und so weiter, sowie mit na  türlichem Kautschuk,     Faktis,        Regeneraten     und so weiter mischen, formen und vulkani  sieren lässt, wenn man Schwefel oder schwe  felabgebende Stoffe auf     Äthylendiehlorid    in  Gegenwart eines wässerigen, alkalischen, al  koholischen oder andern Lösungsmittels zur  Einwirkung bringt.  



  Es wurde nun gefunden, dass man zu  einem ähnlichen Körper gelangt, wenn man  in jenem Verfahren - statt     Äthylendichlo-          rid    - ein Gemisch von Formaldehyd und       Methylendibromid    verwendet; auf das man  Schwefel oder schwefelabgebende Substanzen  in     Polysulfidform,    in der Wärme oder bei  gewöhnlicher Temperatur, einwirken lässt.    Das erhaltene Produkt ist ein kautschukarti  ges elastischer, in Schwefelkohlenstoff lös  licher Körper.  



       Beispiel:     Auf 100 Teile einer wässerigen, alkoho  lischen oder alkalischen Lösung, welche  Schwefel enthält und zum Beispiel als Lösung  von     Schwefelcalcium    in     Polysulfidform    da  durch erhalten wird, dass man Kalkhydrat  mit Schwefel und Wasser kocht und die  Lösung filtriert, wird ein Gemisch von 3 Teilen  Formaldehyd und 3 Teilen     Methylendibromid     unter Erwärmen zur Einwirkung gebracht.  Es entsteht ein kautschukartiger elastischer  Körper, der in     Schwefelkoblenstoff    löslich  ist. Die Modifikation des angewandten Schwe  fels wird bestimmend für den Grad der Lös  lichkeit des gebildeten kautschukartigen Kör  pers in Schwefelkohlenstoff.

   Die Umwandlung  kann auch bei gewöhnlicher Temperatur  durch Stehenlassen während einiger Tage  durchgeführt werden.



  Process for the production of an elastic, skin-shoe-like body. The main patent describes a process according to which one arrives at an elastic, rubber-like body that can be processed, for example, on the machines commonly used in the rubber industry, such as natural rubber, and with fillers, for example zinc oxide, carbon black; Magnesia and so on, as well as mixing, shaping and vulcanizing with natural rubber, factice, regenerated material and so on, if sulfur or sulfur-releasing substances are brought to the effect on ethylene dichloride in the presence of an aqueous, alkaline, alcoholic or other solvent.



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



       Example: For 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 filtering the solution, a mixture of 3 parts becomes Formaldehyde and 3 parts of methylenedibromide brought to action with heating. The result is a rubber-like elastic body that is soluble in carbon sulfide. The modification of the sulfur used determines the degree of solubility of the rubber-like body formed in carbon disulfide.

   The conversion can also be carried out at ordinary temperature by allowing it to stand for a few days.

 

Claims (1)

hATtN'tANSPRÜCH 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 ein Ge- misch von Formaldehyd und Methylendibromid in Gegenwart eines Lösungsmittels zur Ein wirkung bringt. DOES NOT APPLY A process for the production of an elastic, rubber-like body which is soluble in carbon disulfide; characterized in that sulfur or sulfur-emitting substances in polysulphide form are brought into effect on a mixture of formaldehyde and methylene dibromide in the presence of a solvent.
CH132515D 1927-10-15 1927-10-15 Method for producing an elastic, rubber-like body. CH132515A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH127540T 1927-10-15
CH132515T 1927-10-15

Publications (1)

Publication Number Publication Date
CH132515A true CH132515A (en) 1929-04-15

Family

ID=25710940

Family Applications (1)

Application Number Title Priority Date Filing Date
CH132515D CH132515A (en) 1927-10-15 1927-10-15 Method for producing an elastic, rubber-like body.

Country Status (1)

Country Link
CH (1) CH132515A (en)

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