AT83275B - Process for the production of a plastic from hard rubber dust with the addition of phenol-formaldehyde condensates with excess phenol. - Google Patents
Process for the production of a plastic from hard rubber dust with the addition of phenol-formaldehyde condensates with excess phenol.Info
- Publication number
- AT83275B AT83275B AT83275DA AT83275B AT 83275 B AT83275 B AT 83275B AT 83275D A AT83275D A AT 83275DA AT 83275 B AT83275 B AT 83275B
- Authority
- AT
- Austria
- Prior art keywords
- phenol
- hard rubber
- production
- addition
- plastic
- Prior art date
Links
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 title claims description 9
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 title claims description 9
- 229920001568 phenolic resin Polymers 0.000 title claims description 7
- 229920001875 Ebonite Polymers 0.000 title claims description 6
- 239000000428 dust Substances 0.000 title claims description 6
- 239000004033 plastic Substances 0.000 title claims description 5
- 229920003023 plastic Polymers 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 230000002421 anti-septic effect Effects 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 239000013067 intermediate product Substances 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 239000000047 product Substances 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 239000007859 condensation product Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung eines Kunststoffes aus Hartgummistaub unter Zusatz von Phenol- formaldehydkondensaten mit überschüssigem Phenol.
Die Herstellung von Kunststoffen aus Mischungen von Phenolformaldehydkondensaten mit Hartgummistaub ist nicht mehr neu. Die Erfindung strebt die Herstellung eines antiseptisch wirkenden Kunststoffes aus Hartgummistaub unter Zusatz von Formaldehydphenolkondensaten mit überschüssigem Phenol an. Dieser Zweck wird erreicht, indem die Vulkanisationsdauer und Temperatur so bemessen werden, dass das Phenolformaldehydkondensat nicht zum Endprodukt erhärtet, sondern als Zwischenprodukt in dem Endprodukt erhalten bleibt. Das zuzusetzende Phenolformaldehydkondensationsprodukt befindet sich im zähflüssigen oder festen, in der Wärme noch erweichbaren Zustande.
Die Temperatur soll unter dem Siedepunkt des zugesetzten Phenols liegen, damit sich dasselbe nur im geringen Masse verflüchtigen kann und im Phenolformaldehydkondensate, das unter dem Einfluss der Temperatur und der Zeit einen höheren Grad der Kondensation angenommen hat, gelöst bleibt. Die antiseptische Wirkung ist damit erklärlich, dass in dem Zwischenprodukt unveränderte Karbolsäureverbindungen vorhanden sind.
Als vorteilhaft hat sich erwiesen, eine Mischung von 250 g Hartgummistaubt 200 g Kautschuk, 150 g Schwefel, 450 g Phenolaldehydkondensationsprodukt und 100 g Kresol, zu verwenden, die Vulkanisation ungefähr 15 Minuten andauern zu lassen und eine Temperatur von etwa 1200 C bis 1300 C anzuwenden.
Die Erfindung eignet sich für eine grosse Anzahl von Gebrauchsgegenständen, wie z. B. ärztliche Instrumente, Telephonhörmuscheln usw., welche aus hygienischen Rücksichten antiseptisch sein sollen.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of a plastic from hard rubber dust with the addition of phenol-formaldehyde condensates with excess phenol.
The production of plastics from mixtures of phenol-formaldehyde condensates with hard rubber dust is no longer new. The invention aims to produce an antiseptic plastic from hard rubber dust with the addition of formaldehyde phenol condensates with excess phenol. This purpose is achieved in that the vulcanization time and temperature are measured in such a way that the phenol-formaldehyde condensate does not harden to form the end product, but rather remains as an intermediate product in the end product. The phenol-formaldehyde condensation product to be added is in a viscous or solid state that can still be softened when heated.
The temperature should be below the boiling point of the added phenol so that it can only evaporate to a small extent and remains dissolved in the phenol-formaldehyde condensate, which has assumed a higher degree of condensation under the influence of temperature and time. The antiseptic effect can be explained by the fact that unchanged carbolic acid compounds are present in the intermediate product.
It has proven advantageous to use a mixture of 250 g of hard rubber dust, 200 g of rubber, 150 g of sulfur, 450 g of phenol-aldehyde condensation product and 100 g of cresol, to allow the vulcanization to last about 15 minutes and to use a temperature of about 1200 C to 1300 C. .
The invention is suitable for a large number of utensils, such as. B. medical instruments, telephone earpieces, etc., which should be antiseptic for hygienic reasons.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT83275T | 1915-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT83275B true AT83275B (en) | 1921-03-25 |
Family
ID=3604476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT83275D AT83275B (en) | 1915-07-19 | 1915-07-19 | Process for the production of a plastic from hard rubber dust with the addition of phenol-formaldehyde condensates with excess phenol. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT83275B (en) |
-
1915
- 1915-07-19 AT AT83275D patent/AT83275B/en active
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