AT128867B - Process for the production of hard rubber-like masses. - Google Patents
Process for the production of hard rubber-like masses.Info
- Publication number
- AT128867B AT128867B AT128867DA AT128867B AT 128867 B AT128867 B AT 128867B AT 128867D A AT128867D A AT 128867DA AT 128867 B AT128867 B AT 128867B
- Authority
- AT
- Austria
- Prior art keywords
- hard rubber
- masses
- production
- rubber
- butadiene
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 229920000642 polymer Polymers 0.000 claims description 8
- 229920001875 Ebonite Polymers 0.000 claims description 7
- 244000043261 Hevea brasiliensis Species 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229920003052 natural elastomer Polymers 0.000 claims description 7
- 229920001194 natural rubber Polymers 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 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 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910000799 K alloy Inorganic materials 0.000 description 1
- 229910000528 Na alloy Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- -1 butadiene alkali metal Chemical class 0.000 description 1
- 230000001055 chewing effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- MLUCVPSAIODCQM-NSCUHMNNSA-N crotonaldehyde Chemical compound C\C=C\C=O MLUCVPSAIODCQM-NSCUHMNNSA-N 0.000 description 1
- MLUCVPSAIODCQM-UHFFFAOYSA-N crotonaldehyde Natural products CC=CC=O MLUCVPSAIODCQM-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- APGXDGZXGZROMN-UHFFFAOYSA-N n-piperidin-1-ium-1-ylcarbamodithioate Chemical compound SC(=S)NN1CCCCC1 APGXDGZXGZROMN-UHFFFAOYSA-N 0.000 description 1
- JFWCYIGUJCNJNG-UHFFFAOYSA-N piperidin-1-ium;n-piperidin-1-ylcarbamodithioate Chemical compound C1CC[NH2+]CC1.[S-]C(=S)NN1CCCCC1 JFWCYIGUJCNJNG-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von hartgummiartigen Massen.
Es wurde gefunden, dass man zu wertvollen hartgummiartigen Massen von hoher Wärmebeständig- keit und guter Widerstandsfähigkeit gegen chemische Agentien gelangt, wenn man Mischungen aus
Naturgummi und Butadien-Alkalimetallpolymerisaten in der für Hartgummi üblichen Weise verarbeitet.
Den Mischungen können ausser Schwefel auch andere Zusätze beigemengt werden, wie z. B. Vulkanisations- beschleuniger, Füllstoffe u. dgl. Besonders wertvoll haben sich Mischungen von Naturkautschuk mit dem Natriumpolymerisat des Butadien- (l, 3) erwiesen. Hartgummimischungen, welche nur diese künst- liehe Kautsehukart ohne Zusatz von Naturkautschuk enthalten, liefern zwar auch einen wertvollen Hart- gummi, lassen sich aber schwer verarbeiten ; sie sind auch weniger plastisch, nehmen schlecht Schwefel auf usw. Naturkautschuk ist dagegen sehr plastisch, nimmt gut Schwefel, Füllstoffe u. dgl. auf, liefert jedoch einen Hartgummi, welcher nur mässig beständig gegen Wärme und chemische Einflüsse ist.
In der letztgenannten Hinsicht wird er aber wieder durch das angeführte Butadien-Natriumpolymerisat vorteilhaft ergänzt, da dieses hartgummiartige Massen liefert, welche dem Naturhartgummi in bezug auf Wärmebeständigkeit und Widerstandsfähigkeit gegen chemische Agenzien überlegen sind. Arbeitet man nun nach vorliegendem Verfahren, d. h. verwendet man Naturkautschuk zusammen mit ButadienAlkalimetall- bzw. Natriumpolymerisat, so erhält man eine ähnlich dem Naturkautschuk plastische, leicht verarbeitbare und Füllstoffe gut aufnehmende Masse, welche Hartvulkanisate liefert, die dem Natur- hartgummi ebenfalls bezüglich Wärmebeständigkeit und Widerstandsfähigkeit erheblich überlegen sind.
Beispiel : Eine Mischung von 50 Teilen Rohgummi (smoked sheets), 50 Teilen Natriumpoly- merisat des Butadiens, 75 Teilen Schwefel, 1 Teil piperidindithiocarbaminsaures Piperidin, 150 Teilen Bimsstein, 5 Teilen Kalk, wird 90 Minuten bei 4Y2 Atm. vulkanisiert. Es entsteht ein Vulkanisat, das sieh durch grosse Wärembeständigkeit und chemische Widerstandsfähigkeit auszeichnet.
An Stelle des Natriumpolymerisats des Butadiens kann auch ein Polymerisat des Butadiens, das mit Hilfe von Kalium oder einer Legierung von Kalium und Natrium hergestellt worden ist, verwendet werden. Die Vulkanisationsmischungen können statt durch piperidindithiocarbaminsaures Piperidin auch durch andere Vulkanisationsbeschleuniger, z. B. Mercaptobenzothiazol, oder durch Kondensations- produkte von Crotonaldehyd mit Ammoniak beschleunigt werden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of hard rubber-like masses.
It has been found that valuable hard rubber-like masses of high heat resistance and good resistance to chemical agents can be obtained if mixtures of
Natural rubber and butadiene alkali metal polymers processed in the usual way for hard rubber.
In addition to sulfur, other additives can be added to the mixtures, such as B. vulcanization accelerators, fillers u. The like. Mixtures of natural rubber with the sodium polymer of butadiene (1,3) have proven particularly valuable. Hard rubber mixtures which only contain this artificial type of chewing skin without the addition of natural rubber also provide a valuable hard rubber, but are difficult to process; They are also less plastic, absorb sulfur poorly, etc. Natural rubber, on the other hand, is very plastic, absorbs sulfur, fillers and the like. Like., but provides a hard rubber which is only moderately resistant to heat and chemical influences.
In the last-mentioned regard, however, it is again advantageously supplemented by the butadiene-sodium polymer mentioned, since this provides hard rubber-like compounds which are superior to natural hard rubber in terms of heat resistance and resistance to chemical agents. If one works according to the present method, i. H. If natural rubber is used together with butadiene-alkali metal or sodium polymer, a material that is plastic, easy to process and absorbs fillers, is obtained, similar to natural rubber, which provides hard vulcanizates that are also considerably superior to natural hard rubber in terms of heat resistance and resistance.
Example: A mixture of 50 parts of raw rubber (smoked sheets), 50 parts of sodium polymer of butadiene, 75 parts of sulfur, 1 part of piperidinedithiocarbamic acid, piperidine, 150 parts of pumice stone, 5 parts of lime, is heated for 90 minutes at 4Y2 atm. vulcanized. The result is a vulcanizate that is characterized by its high level of heat resistance and chemical resistance.
Instead of the sodium polymer of butadiene, it is also possible to use a polymer of butadiene which has been produced with the aid of potassium or an alloy of potassium and sodium. The vulcanization mixtures can, instead of piperidinedithiocarbamic acid piperidine, also be used by other vulcanization accelerators, e.g. B. mercaptobenzothiazole, or be accelerated by condensation products of crotonaldehyde with ammonia.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE128867X | 1929-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT128867B true AT128867B (en) | 1932-06-25 |
Family
ID=5662788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT128867D AT128867B (en) | 1929-07-05 | 1930-06-24 | Process for the production of hard rubber-like masses. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT128867B (en) |
-
1930
- 1930-06-24 AT AT128867D patent/AT128867B/en active
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