CH132513A - Method for producing an elastic rubber-like body. - Google Patents

Method for producing an elastic rubber-like body.

Info

Publication number
CH132513A
CH132513A CH132513DA CH132513A CH 132513 A CH132513 A CH 132513A CH 132513D A CH132513D A CH 132513DA CH 132513 A CH132513 A CH 132513A
Authority
CH
Switzerland
Prior art keywords
sulfur
rubber
producing
elastic 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 CH132513A publication Critical patent/CH132513A/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)

Description

  

  Verfahren zur Herstellung eines elastischen kautschukartigen     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, so  wie mit Füllstoffen, z. B. Zinkoxyd, Russ,  Magnesia usw., sowie mit natürlichem Kaut  schuk,     Faktis,        Regeneraten    usw. mischen,  formen und vulkanisieren lässt, wenn man  Schwefel oder schwefelabgebende Stoffe auf       Äthylendichlorid    in Gegenwart eines wässe  rigen, 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     Äthylendi-          chlorid    - ein Gemisch von Formaldehyd  und     Methylendichlorid    verwendet, auf das  man Schwefel oder schwefelabgebende Sub  stanzen in     Polysulfidform,    in der Wärme oder  bei gewöhnlicher Temperatur, einwirken lässt.  Das erhaltene     Produkt    ist ein kautschuk-    artiger, elastischer, in Schwefelkohlenstoff lös  licher Körper.

      <I>Beispiel</I>       Auf    100 Teile einer wässerigen, alkoholi  schen oder alkalischen Lösung, welche Schwe  fel enthält und zum Beispiel als Lösung von       Schwefelcalcium    in     Polysulfidform    dadurch  erhalten wird, dass man Kalkhydrat mit  Schwefel und Wasser kocht und die Lösung  filtriert, wird ein Gemisch von 3 Teilen For  maldehyd und 3 Teilen     Methylendichlorid     unter Erwärmen zur Einwirkung gebracht.  Es entsteht ein kautschukartiger, elastischer  Körper, der in Schwefelkohlenstoff löslich ist.  Die Modifikation des angewandten Schwefels  wird bestimmend für den Grad der Löslich  keit des gebildeten kautschukartigen Körpers  in Schwefelkohlenstoff.

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



  Method for producing an elastic rubber-like body. In the main patent, a method is be written, 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, as with fillers, e.g. B. zinc oxide, soot, magnesia, etc., as well as with natural rubber, factice, regenerates, etc. mix, shape and vulcanize if you can act on sulfur or sulfur-releasing substances on ethylene dichloride in the presence of an aqueous, alkaline, alcoholic or other solvent brings.



  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 dichloride is used, on which sulfur or sulfur-releasing substances are punched in polysulphide form, in the heat or at ordinary temperature to act. The product obtained is a rubber-like, elastic body that is 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 filtering the solution, a mixture of 3 parts of formaldehyde and 3 parts of methylene dichloride is brought into action with heating. The result is a rubber-like, elastic body that is soluble in carbon disulfide. 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)

PATENTANSPRUCH: Verfahren zur Herstellung eines elasti schen, kautschukartigen Körpers, der in Schwe felkohlenstoff löslich ist, dadurch gekenn zeichnet, dass man Schwefel oder schwefel abgebende Stoffe in Polysulfidform auf ein Gemisch von Formaldehyd und Methylendi- chlorid in Gegenwart eine\s--Töeungsmitteis zur Einwirkung bringt. PATENT CLAIM: Process for the production of an elastic, rubber-like body which is soluble in carbon sulphide, characterized in that sulfur or sulfur-releasing substances in polysulphide form are added to a mixture of formaldehyde and methylene dichloride in the presence of a töeungsmitteis Brings influence.
CH132513D 1927-10-15 1927-10-15 Method for producing an elastic rubber-like body. CH132513A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH132513T 1927-10-15
CH127540T 1927-10-15

Publications (1)

Publication Number Publication Date
CH132513A true CH132513A (en) 1929-04-15

Family

ID=25710938

Family Applications (1)

Application Number Title Priority Date Filing Date
CH132513D CH132513A (en) 1927-10-15 1927-10-15 Method for producing an elastic rubber-like body.

Country Status (1)

Country Link
CH (1) CH132513A (en)

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