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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/14—Polysulfides
- C08G75/16—Polysulfides 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)
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) |
-
1927
- 1927-10-15 CH CH132322D patent/CH132322A/en unknown
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