AT99665B - Process for dissolving cellulose esters and cellulose ethers. - Google Patents
Process for dissolving cellulose esters and cellulose ethers.Info
- Publication number
- AT99665B AT99665B AT99665DA AT99665B AT 99665 B AT99665 B AT 99665B AT 99665D A AT99665D A AT 99665DA AT 99665 B AT99665 B AT 99665B
- Authority
- AT
- Austria
- Prior art keywords
- cellulose
- dissolving
- esters
- ethers
- cellulose ethers
- Prior art date
Links
- 229920003086 cellulose ether Polymers 0.000 title claims description 4
- 229920000875 Dissolving pulp Polymers 0.000 title claims description 3
- 150000002148 esters Chemical class 0.000 title claims description 3
- 238000000034 method Methods 0.000 title claims description 3
- 239000002904 solvent Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 description 1
- 229940081735 acetylcellulose Drugs 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Lösung von Zelluloseestern und Zelluloseäthern.
EMI1.1
I. Nitrozellulose löst sich ohne oder mit Uelatinierungsmitteln in dem Gesamtdestillationsprodukt oder in einzelnen Fraktionen.
EMI1.2
Fraktionen über 100 in der Kälte. Löst sich in der Wärme in den Fraktionen über 100 bei Zusatz von Methyl-oder Äthylalkohol.
III. Äthylzellulose verhält sich ganz ähnlich wie Azetylzellulose.
Auf diese Weise lassen sich Lösungsmittel verschiedenster Dampftensionen zusammenstellen, was für die Filmindustrie von grosser Bedeutung ist.
Ebenso lassen sich in ein und demselben Lösungsmittel die verschiedensten Gemische von Zelluloseestern bzw. Zelluloseäthern gemeinsam lösen.
Das Lösungsmittel gemäss vorliegender Erfindung ist in erster Linie dazu bestimmt, Filme mit hoher Dielektrizitätskonstante bzw. Durchschlagswiderstand zu erzeugen, wie solche beispielsweise bei dem Bau von elektrischen Kondensatoren Verwendung finden. Selbstverständlich können auch Isolierunglacke der verschiedensten Zusammensetzung und Trocknungsdauer zusammengestellt werden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for dissolving cellulose esters and cellulose ethers.
EMI1.1
I. Nitrocellulose dissolves with or without uelatinizing agents in the total distillation product or in individual fractions.
EMI1.2
Fractions over 100 in the cold. Dissolves in the heat in the fractions over 100 with the addition of methyl or ethyl alcohol.
III. Ethyl cellulose behaves in a very similar way to acetyl cellulose.
In this way, solvents with a wide variety of vapor densities can be combined, which is of great importance for the film industry.
Likewise, the most diverse mixtures of cellulose esters or cellulose ethers can be dissolved together in one and the same solvent.
The solvent according to the present invention is primarily intended to produce films with a high dielectric constant or breakdown resistance, such as those used, for example, in the construction of electrical capacitors. Of course, insulation varnishes of various compositions and drying times can also be put together.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT99665T | 1924-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT99665B true AT99665B (en) | 1925-04-10 |
Family
ID=3618804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT99665D AT99665B (en) | 1924-03-24 | 1924-03-24 | Process for dissolving cellulose esters and cellulose ethers. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT99665B (en) |
-
1924
- 1924-03-24 AT AT99665D patent/AT99665B/en active
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