DE701577C - Solvent - Google Patents

Solvent

Info

Publication number
DE701577C
DE701577C DE1939I0063666 DEI0063666D DE701577C DE 701577 C DE701577 C DE 701577C DE 1939I0063666 DE1939I0063666 DE 1939I0063666 DE I0063666 D DEI0063666 D DE I0063666D DE 701577 C DE701577 C DE 701577C
Authority
DE
Germany
Prior art keywords
esters
solvent
solvents
acetate
paint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE1939I0063666
Other languages
German (de)
Inventor
Dr Alfred Gnuechtel
Dr Alfred Rieche
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DE1939I0063666 priority Critical patent/DE701577C/en
Application granted granted Critical
Publication of DE701577C publication Critical patent/DE701577C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/15Heterocyclic compounds having oxygen in the ring
    • C08K5/151Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
    • C08K5/1535Five-membered rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

Lösungsmittel Es wurde gefunden, daß Carbonsäureester des 3-Oxytetrahydrofurans, besonders die Ester der niederen Carbonsäuren, wie das Acetat, ausgezeichnete Lösungsmittel darstellen. Sie lassen sich z. B. zur Herstellung von Lacken, Imprägniermitteln, Abbeizmitteln, entweder für sich allein oder -in Mischung mit anderen Lösungsmitteln verwenden. Solche Gemische sind in weiten Grenzen .möglich, da diese Ester sowohl mit Lösungsmitteln, wie Wasser, Alkoholen, Glykolen, Ätliern, Estern, aliphatischen und aromatischen Kohlen- und Chlorkohlenwasserstoffen, Ketonen, als auch mit allen bekannten Weichmachern sowie mit trocknenden und nichttrocknenden ölen und Alkydharzen eine gute Verträglichkeit zeigen.Solvent It has been found that carboxylic acid esters of 3-oxytetrahydrofuran, especially the esters of the lower carboxylic acids, such as acetate, are excellent solvents represent. You can z. B. for the production of varnishes, impregnating agents, Paint strippers, either on their own or in a mixture with other solvents use. Such mixtures are possible within wide limits, since these esters both with solvents such as water, alcohols, glycols, ethers, esters, aliphatic and aromatic hydrocarbons and chlorinated hydrocarbons, ketones, as well as all known plasticizers and with drying and non-drying oils and alkyd resins show a good tolerance.

Die erwähnten Ester lösen Lackrohstoffe, wie Celluloseester und -äther, Polystyrol, Chlorkautschuk und Polyv inylverbindungen, ferner Natur- und Kunstharze und hinterlassen beim Ausgießen ihrer Lösungen klare Filme. Sie eignen sich mit Vorteil als Verdünnungsmittel für Lacke üblicher Zusammen-Setzung sowie wegen ihrer geringeren Flüchtigkeit als Abbeizmittel für alte Anstriche. So wird beispielsweise ein Polyvinylchlorid des Handels, das von Tetrahy drofurfuralkohol nur zu 50`o gelöst wird, von dem Acetat des Otytetrahydrofuraiis zu Solo aufgenommen. Vor dem bereits für verschiedene "Zwecke der Lackherstellung vorgeschlagenen Tetrahydrofurfuralkohol und seinen Estern zeichnen sich die Carbonsäureester des 3-OxYtetrahyclrofurans, insonderheit das Acetat, durch ihr Lösevermögen für Cellulosetriacetat aus. Bisher stand hierfür praktisch nur ltetliyletichlo- rid in Verbindung mit geringen Mengen Methanol oder Äthanol zur Verfügung. Bei solchen Lösungen störte aber vielfach das allzu rasche Verdunsten der leicht siedenden Lösungsmittel, insbesondere bei dem maschi- nellen Auftrag auf Stofte. Hier ist nun das hochsiedende Acetat des 3-Oxvtetrali@'dro- ftirairs (Sdp. i;2 bis i75°, Verdunstungszeit 1;o [Äther=i] und Dichte 1,0954) beso11- ders geeignet. Es vermag schon allein bis zti 20,o an Cellulosetriacetat klar zu lösen. In Mischung mit niedrig-siedenden Lösern, wie Methylenchlorid, läßt sich die Flüchtigkeit solcher Lacke beliebig regeln. Beispiel Man löst to Teile Cellulosetriacrtat ill einem Gemisch von bo Teilen Metllylenchlo- rid, 301@cilen 3-Oxvtetralivdrofuranzicet:tt unc1 io "feilen Alkohol. Durch Tränken %-on Ge- weben oder anderen Formstücken finit dieser Lösun, erhält man nach dein Verdunsten cle r Lösungsmittel klare, haftende Filine atis C.'ellu- losetri.lcetat. The esters mentioned dissolve paint raw materials such as cellulose esters and ethers, polystyrene, chlorinated rubber and polyvinyl compounds, and also natural and synthetic resins, and leave clear films when their solutions are poured out. They are advantageously suitable as thinners for lacquers with the usual composition and, because of their lower volatility, as paint strippers for old paintwork. For example, a commercial polyvinyl chloride, which is only 50% dissolved by Tetrahy drofurfuralkohol, is absorbed by the acetate of Otytetrahydrofuraiis to Solo. Before the tetrahydrofurfural alcohol and its esters, which have already been proposed for various purposes in paint production, the carboxylic acid esters of 3-oxytetrahyclrofuran, especially the acetate, are distinguished by their dissolving power for cellulose triacetate. rid in conjunction with small amounts Methanol or ethanol available. at But that often bothered such solutions too rapid evaporation of the low-boiling Solvents, especially in the machine nal application on fabrics. Now here is this high-boiling acetate of 3-Oxvtetrali @ 'dro- ftirairs (bp. i; 2 to i75 °, evaporation time 1; o [ether = i] and density 1.0954) especially which is suitable. It can already be up to zti 20, o of cellulose triacetate to dissolve clearly. In Mixing with low-boiling solvents, such as Methylene chloride, can be the volatility regulate such varnishes at will. example One dissolves to parts of cellulose triacrtate ill a mixture of bo parts of methylene chloride rid, 301 @ cilen 3-Oxvtetralivdrofuranzicet: tt unc1 io "refine alcohol. By soaking% -on Ge weave or other fittings finite this Solution, you get clear after your evaporation Solvent clear, adherent filines atis C.'ellu- losetri.lcetat.

Claims (1)

L'A'rliN'i'1NSl'IZUCII:
Verwendung der Carbonsäureester des 3-Otytetrahydroftirans als Losungsmittel. insbesondere für lacktechnische Zwecke.
L 'A'rliN'i'1NSl'IZUCII:
Use of the carboxylic acid esters of 3-Otytetrahydroftirans as a solvent. especially for paint technology purposes.
DE1939I0063666 1939-02-02 1939-02-02 Solvent Expired DE701577C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1939I0063666 DE701577C (en) 1939-02-02 1939-02-02 Solvent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1939I0063666 DE701577C (en) 1939-02-02 1939-02-02 Solvent

Publications (1)

Publication Number Publication Date
DE701577C true DE701577C (en) 1941-01-20

Family

ID=7195956

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1939I0063666 Expired DE701577C (en) 1939-02-02 1939-02-02 Solvent

Country Status (1)

Country Link
DE (1) DE701577C (en)

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