CH132514A - Method for producing an elastic rubber-like body. - Google Patents
Method for producing an elastic rubber-like body.Info
- Publication number
- CH132514A CH132514A CH132514DA CH132514A CH 132514 A CH132514 A CH 132514A CH 132514D A CH132514D A CH 132514DA CH 132514 A CH132514 A CH 132514A
- Authority
- CH
- Switzerland
- Prior art keywords
- sulfur
- rubber
- producing
- elastic 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)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (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 Äthylendibromid verwendet, auf das man Schwefel oder schwefelabgebende Sub stanzen in Polysnlfidform, in der Wärme oder bei gewöhnlicher Temperatur, einwirken lässt. Das erhaltene Produkt ist ein kaut- schukartiger, elastischer, in Schwefelkohlen stoff löslicher Körper. .
<I>Beispiel</I> Auf<B>100</B> Teile einer wässerigen, alkoholi schen oder alkalischen Lösung, welche Schwe fel enthält und zum Beispiel als Lösung von Schwefelcalaium in Polysulfidform dadurch erhalten wird, dass man Kalkhydrat mit Schwefel und Wasser kocht und die Lösung filtriert, wird ein Gemiseh von 3 Teilen For maldehyd und 3 Teilen Äthylendibromid unter Erwärmen zur Einwirkung gebracht. E9 ent steht ein kautschukartiger, elastischer Kör per, 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 one arrives at a similar body if one uses in that process - instead of ethylene dichloride - a mixture of formaldehyde and ethylene dibromide, on which one stamps sulfur or sulfur-releasing substances in the form of polystyrene, 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> On <B> 100 </B> parts of an aqueous, alcoholic or alkaline solution which contains sulfur and is obtained, for example, as a solution of calcium sulphide in polysulphide form by mixing hydrated lime with sulfur and Water boils and the solution is filtered, a mixture of 3 parts of formaldehyde and 3 parts of ethylene dibromide is brought into action with heating. E9 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 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH127540T | 1927-10-15 | ||
CH132514T | 1927-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH132514A true CH132514A (en) | 1929-04-15 |
Family
ID=25710939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH132514D CH132514A (en) | 1927-10-15 | 1927-10-15 | Method for producing an elastic rubber-like body. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH132514A (en) |
-
1927
- 1927-10-15 CH CH132514D patent/CH132514A/en unknown
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