AT54720B - Process for the preparation of rubber, its homologues and analogues. - Google Patents
Process for the preparation of rubber, its homologues and analogues.Info
- Publication number
- AT54720B AT54720B AT54720DA AT54720B AT 54720 B AT54720 B AT 54720B AT 54720D A AT54720D A AT 54720DA AT 54720 B AT54720 B AT 54720B
- Authority
- AT
- Austria
- Prior art keywords
- rubber
- homologues
- analogues
- preparation
- sodium
- Prior art date
Links
- 229920001971 elastomer Polymers 0.000 title claims description 6
- 239000005060 rubber Substances 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title claims description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 8
- 229910000497 Amalgam Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 7
- 229910052708 sodium Inorganic materials 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VEUACKUBDLVUAC-UHFFFAOYSA-N [Na].[Ca] Chemical compound [Na].[Ca] VEUACKUBDLVUAC-UHFFFAOYSA-N 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000001055 chewing effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- MJGFBOZCAJSGQW-UHFFFAOYSA-N mercury sodium Chemical compound [Na].[Hg] MJGFBOZCAJSGQW-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910001023 sodium amalgam Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung von Kautschuk, seinen Homologen und Analogen.
Es wurde die überraschende Beobachtung gemacht, dass die Metalle der Alkali-und Erdalkalireihe bzw. deren Mischungen, Legierungen oder Amalgame imstande sind, bereits bei gewöhnlicher Temperatur Butadien, seine Homologen und Analogen, ohne nennenswerte Nebenprodukte, zu Kautschukaubstanzen von besonders wertvollen Eigenschaften zu polymerisieren.
Beispiel l.
In 100 Teile durch starkes Abkühlen verdichtetes Butadien werden 0'5 Teile Natriumdraht eingepresst, Das Reaktionsgefäss wird sorgfältig verschlossen und darauf einen Tag sich selbst überlassen. Man öffnet nach dieser Zeit das Gefäss, zerstört das Natrium, welches vom Butadienkautschuk dicht umgeben ist durch Alkohol oder Wasser und walzt den resultierenden Butadienkautschuk in der bekannten Weise zum Fell aus.
Beispiel 2.
Ersetzt man in Beispiel 1 den Natriumdraht durch 10 Teile 10"/oigos Natriumamalgam und lässt mehrere Tage stehen, so resultiert gleichfalls Butadienkautschnk.
Beispiel 3.
100 Teile Isopren werden mit 3 Teilen Natriumband versetzt ; das Reaktionsgefäss wird geschlossen und einige Zeit stehen gelassen. Um das Natriumband hat sich alsdann eine dicke Schicht von Kautschuk abgeschieden, der nach Entfernung des Natriums in bekannter Weise verarbeitet werden kann.
Beispiel 4.
Ersetzt man in Beispiel 3 das Isopren durch 100 Teile -y-Dimethylerythren und das Natrium durch 1 Teil Kalzium, so resultiert bei analoger Behandlungsweise der bekannte Methylkautschuk.
An Stelle der'in den Beispielen genannten Kohlenwasserstoffe lassen sich auch
EMI1.1
Beispielen genannten Mittel andrro Alkali- oder Erdalkalimetalle, z. B. Kalzium oder Gemische, wie Kalziumnatrium oder andere Amalgame wie z. B. Ammoniumamalgam verwenden.
Durch Anwendung von Wärme wird der Verlauf der Polymerisation natürlich noch weiter beschleunigt.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the preparation of rubber, its homologues and analogues.
The surprising observation was made that the metals of the alkali and alkaline earth series or their mixtures, alloys or amalgams are able to polymerize butadiene, its homologues and analogues, without significant by-products, to give rubber substances with particularly valuable properties, even at ordinary temperature.
Example l.
0.5 parts of sodium wire are pressed into 100 parts of butadiene that has been compressed by vigorous cooling. The reaction vessel is carefully closed and then left to stand for a day. After this time, the vessel is opened, the sodium, which is tightly surrounded by the butadiene rubber, is destroyed by alcohol or water and the resulting butadiene rubber is rolled out in the known manner to form a fur.
Example 2.
If the sodium wire is replaced in Example 1 by 10 parts of 10% sodium amalgam and left to stand for several days, butadiene chewing is also obtained.
Example 3.
3 parts of sodium tape are added to 100 parts of isoprene; the reaction vessel is closed and left to stand for some time. A thick layer of rubber has then deposited around the sodium band, which can be processed in a known manner after the sodium has been removed.
Example 4.
If the isoprene is replaced by 100 parts -y-dimethylerythrene and the sodium by 1 part calcium in Example 3, the result is the known methyl rubber with an analogous treatment.
Instead of the hydrocarbons mentioned in the examples,
EMI1.1
Examples mentioned means andrro alkali or alkaline earth metals, z. B. calcium or mixtures such as calcium sodium or other amalgams such as. B. Use ammonium amalgam.
The course of the polymerization is of course accelerated even further by the application of heat.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE54720X | 1910-12-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT54720B true AT54720B (en) | 1912-08-10 |
Family
ID=5628117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT54720D AT54720B (en) | 1910-12-12 | 1911-08-30 | Process for the preparation of rubber, its homologues and analogues. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT54720B (en) |
-
1911
- 1911-08-30 AT AT54720D patent/AT54720B/en active
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