AT59832B - Process for the preparation of a substance closely related to rubber. - Google Patents
Process for the preparation of a substance closely related to rubber.Info
- Publication number
- AT59832B AT59832B AT59832DA AT59832B AT 59832 B AT59832 B AT 59832B AT 59832D A AT59832D A AT 59832DA AT 59832 B AT59832 B AT 59832B
- Authority
- AT
- Austria
- Prior art keywords
- rubber
- preparation
- closely related
- substance
- substance closely
- Prior art date
Links
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Graft Or Block Polymers (AREA)
Description
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Verfahren zur Darstellung einer dem Kautschuk nahestehenden Substanz.
Im Journal für praktische Chemie, Band 64, Seite 109/110 hat Kondakow ein durch Autopolymerisation des -Y-Dimethylerythrens durch Stehenlassen desselben am Licht erhaltenes Polymerisationsprodukt beschrieben. Dieses Produkt ist, wie in der österreichischen Patentschrift Nr. 49687 nachgewiesen wurde, von der nach den Angaben dieser Patentschrift durch Erwärmen des ss-#-Dimethylbutadiens erhältlichen kautschukähnlichen Substanz vollständig verschieden. Es stellt eine weisse krümlige Masse dar, die unlöslich in Benzin, Ligroin, Chloroform, Schwefelkohlenstoff, Äther, Alkohol, Azeton und Terpentinöl ist. Sie verändert sich an der Luft so schnell, dass sie sich auf der Walze nur dann zu einem Fell verarbeiten lässt, wenn sie diesem Prozess gleich nach ihrer Gewinnung unterworfen wird.
Die so hergestellten Felle sind aber ebenfalls nur sehr kurze Zeit haltbar und verharzen schnell an der Luft, so dass sie für die technische Verwertung überhaupt nicht in Frage kommen.
Das vorstehend erwähnte Polymerisationsprodukt wurde nach Kondakow aus methylerythren dadurch erhalten, dass man diesen Körper ein Jahr lang am Tageslicht und bei gewöhnlicher Temperatur stehen liess.
Es wurde nun gefunden, dass sich diese Substanz in ein haltbares und technisch
EMI1.1
wenn man sie der Einwirkung basisch reagierender Substanzen aussetzt.
B e i s p i e l :
100 Teile von Kondakow beschriebenen weissen Polymerisationsproduktes des ss-#-Di- methylerythrens werden in 1000 Teilen 2%iges Anilinwasser gelegt und 24 Stunden darin mazeriert. Durch Pressen auf der Walze erhält man ans dem so vorbehandelten Produkt ein gleichmässiges, gut haltbares Fell.
Statt Anilin kann man in ähnlicher Weise auch andere basische Körper, wie Ammoniak, Dimethylamin, Diäthylamin, Natronlauge oder ähnliche verwenden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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Process for the preparation of a substance closely related to rubber.
In the Journal for Practical Chemistry, Volume 64, Pages 109/110, Kondakow has described a polymerization product obtained by autopolymerization of -Y-dimethylerythrene by allowing it to stand in the light. As demonstrated in Austrian patent specification No. 49687, this product is completely different from the rubber-like substance obtainable according to the information in this patent specification by heating the ss - # - dimethylbutadiene. It is a white crumbly mass that is insoluble in gasoline, ligroin, chloroform, carbon disulfide, ether, alcohol, acetone and turpentine oil. It changes so quickly in the air that it can only be processed into a skin on the roller if it is subjected to this process immediately after its extraction.
The skins produced in this way can also only be kept for a very short time and harden quickly in the air, so that they are out of the question for technical recycling.
According to Kondakov, the above-mentioned polymerization product was obtained from methylerythrene by letting this body stand in daylight and at ordinary temperature for a year.
It has now been found that this substance is durable and technical
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when exposed to the action of alkaline substances.
EXAMPLE:
100 parts of the white polymerization product of ss - # - dimethylerythrene described by Kondakow are placed in 1000 parts of 2% aniline water and macerated in it for 24 hours. By pressing on the roller, a uniform, well-durable skin is obtained on the product pretreated in this way.
Instead of aniline, other basic bodies, such as ammonia, dimethylamine, diethylamine, caustic soda or the like, can also be used in a similar manner.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE59832X | 1911-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT59832B true AT59832B (en) | 1913-06-25 |
Family
ID=5630185
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT59832D AT59832B (en) | 1911-08-07 | 1912-01-15 | Process for the preparation of a substance closely related to rubber. |
| AT67691D AT67691B (en) | 1911-08-07 | 1912-10-07 | Process for the preparation of a substance closely related to rubber. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT67691D AT67691B (en) | 1911-08-07 | 1912-10-07 | Process for the preparation of a substance closely related to rubber. |
Country Status (1)
| Country | Link |
|---|---|
| AT (2) | AT59832B (en) |
-
1912
- 1912-01-15 AT AT59832D patent/AT59832B/en active
- 1912-10-07 AT AT67691D patent/AT67691B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| AT67691B (en) | 1915-01-25 |
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