DE737949C - Solvent, softening and gelatinizing agents for cellulose derivatives - Google Patents

Solvent, softening and gelatinizing agents for cellulose derivatives

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Publication number
DE737949C
DE737949C DEI66741D DEI0066741D DE737949C DE 737949 C DE737949 C DE 737949C DE I66741 D DEI66741 D DE I66741D DE I0066741 D DEI0066741 D DE I0066741D DE 737949 C DE737949 C DE 737949C
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DE
Germany
Prior art keywords
cellulose derivatives
softening
solvent
gelatinizing agents
parts
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
DEI66741D
Other languages
German (de)
Inventor
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 DEI66741D priority Critical patent/DE737949C/en
Application granted granted Critical
Publication of DE737949C publication Critical patent/DE737949C/en
Expired legal-status Critical Current

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    • 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
    • C08K5/156Heterocyclic compounds having oxygen in the ring having two oxygen atoms in the ring
    • C08K5/1565Five-membered rings

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

Lösungs-, Weichmachungs- und Gelatinierungsmittel für Cellulosederivate Es wurde gefunden, daß cycligche Acetale des Tetrahydrofurfurols mit .dre.i- und höherwertigen Alkoholen, deren für die Acetalbildung nicht verbrauchte Oxygruppen verestert sind, eorzügliche Uösungs-, Weichmachungs.-und Gelatinierungsmittel für Cellulosederivafe darstellen. Beispielsweise kommen Verhindungenfolgender allgemeiner Formel.in Frage: In ihr bedeutet R Wasserstoff, All:yl, Aryl, Qayalkyl, Alkoxyalkyl, Ac den Rest einer alihhatischen oder aromatischen Carbon- oder Sultoiisäure. Solche Verbindungen werelen nach den für die Acetalbildung üblichen Aibeitsmethoden erhalten. - Man gewinnt die genannten Verbindungen nach bekannten Verfahren beispielsweise aus Tetrahydrofurfurolglycerinacetal und den entsprechenden Sulfosäure- bzw. Carbonsäurechloriden und Pyridin. So gelangt man u. a. zu dem Methylsulfonat oder Propylsülfonat des Tetrahydrofurfurolglycerinacetals, die gelbe, zähe, wasserunlösliche öle darstellen und sich bei der Destillation zersetzen. Die Carbonsäureester sind ellenfalls wasserunlösliche ölige Substanzen, die sich jedoch im Vakuum unzersetzt destillieren lassen. So siedet das Acetat des Tetrahydrofurfurolglycerinacetals bei 7 mm Hg bei 40 bis 15o°, das entsprechende Butyrat bei 7 mm Hg bei 17o bi s179° und das Benzoat des T etrahydrofurfurolg lycerinacetals bei R mm 11-hei 2o6 bis zio°.Solvents, softeners and gelatinizing agents for cellulose derivatives It has been found that cyclic acetals of tetrahydrofurfurol with .dre.i- and higher-valent alcohols, whose oxy groups not consumed for the acetal formation are esterified, are excellent dissolving, softening and gelatinizing agents for cellulose derivatives . For example, the following general formula can be used: In it, R denotes hydrogen, all: yl, aryl, qayalkyl, alkoxyalkyl, and Ac denotes the radical of an aliphatic or aromatic carboxylic or sultonic acid. Such compounds are obtained by the usual methods of acetal formation. The compounds mentioned are obtained by known processes, for example from tetrahydrofurfurolglycerol acetal and the corresponding sulfonic acid or carboxylic acid chlorides and pyridine. This leads to the methyl sulfonate or propyl sulfonate of tetrahydrofurfurol glycerol acetals, which are yellow, viscous, water-insoluble oils and decompose during distillation. The carboxylic acid esters are at least water-insoluble oily substances which, however, can be distilled undecomposed in vacuo. For example, the acetate of tetrahydrofurfurolglycerol acetals boils at 7 mm Hg at 40 to 150 °, the corresponding butyrate at 7 mm Hg from 17o to 179 ° and the benzoate of tetrahydrofurfurolg lycerol acetals at R mm 11-hei 2o6 to zio °.

Die Ester zeigen gute Verträglichkeit mit Cellulosederivaten, sind sehr lichtbeständig; und verleihen Filmen, insbesondere solchenaus Triacetylcellulose, gute Festigkeit bei ebenfalls guter Dehnung. Man hat bereits Ester cyclischer Acetale von cyclischen Aldehyden, z. B. des Yurfurots mit z. B. Glycerin, als Weichmachungsmittel für Cellulosederivate angewendet. Diese Verbindungen zeigen gegenüber den hydrierten Verbindungen jedoch eine geringere weichmachende Wirkung.The esters show good compatibility with cellulose derivatives very lightfast; and give films, especially those made from triacetyl cellulose, good strength with also good elongation. You already have esters cyclic acetals of cyclic aldehydes, e.g. B. the Yurfurots with z. B. glycerin, used as a softener for cellulose derivatives. These connections show compared to the hydrogenated compounds, however, a lower softening effect.

Beispiel Setzt man einer Lösung von io Teilen Triacetylcellulose in 81 Teilen Methylenchlorid und 9 Teilen Alkohol 5 Teile des Methylsulfonats des Tetrahydrofurfurolglycerinacetals zu, so erhält man einen Film, der eine Reißfestigkeit vors 49o kg/qcm bei einer Dehnung von gojo aufweist. Bei Zusatz der vierfachen Menge an Methylsulfonat geht die Reißfestigkeit auf 14o kg/qcm zurück, während die Dehnung auf 86o% ansteigt.Example A solution of 10 parts of triacetyl cellulose is used 81 parts of methylene chloride and 9 parts of alcohol, 5 parts of the methyl sulfonate of tetrahydrofurfurol glycerol acetal to, a film is obtained which has a tensile strength of 49o kg / square cm with a Has stretching of gojo. With the addition of four times the amount of methyl sulfonate goes the tear strength is reduced to 140 kg / sq.cm, while the elongation increases to 86o%.

Setzt man einer Lösung von io Teilen Triacetylcellulose in 81 Teilen Methylenchlorid und 9 Teilen Alkohol io Teile des Tetrahydrofurfurolglycerinacetalacetats zu, so zeigt der Film eine Reißfestigkeit von 453 kg/qcrn und eine Dehnung von 35%.A solution of 10 parts of triacetyl cellulose in 81 parts is used Methylene chloride and 9 parts of alcohol io parts of the tetrahydrofurfurolglycerolacetalacetats to, the film shows a tear strength of 453 kg / square meter and an elongation of 35%.

Weiterhin zeigten ein Film aus Nitroceihilose (aus i5o/oiger Lösung erhaltend rnit 5o% Tetrahydrofurfurolhexantriolacetalsuretat als Weichmacher eine Reißfestigkeit von 416 kg/ qcm und eine Dehnung von 1a,5%, ein solcher aus Acetylcellulose (aus ioo/oiger Lösung mit 5o0/0 Tetrahydrofurfurolhexantriolacetalacetat als Weichmacher eine Reißfestigkeit von 486 kg/qcm und eine Dehnung von 5,6%.Furthermore, a film of nitroceihilose (from 100% solution obtained with 50% tetrahydrofurfurolhexanetriol acetal acid as plasticizer Tear strength of 416 kg / qcm and an elongation of 1a, 5%, one made of acetyl cellulose (from 100% solution with 50/0 tetrahydrofurfurolhexanetriol acetal acetate as plasticizer a tear strength of 486 kg / qcm and an elongation of 5.6%.

Claims (1)

PATENTANSPRU-CFl Verwendung von Estern cyclischer Acetale des Tetrahydrofurfurols mit drei- und höherwertigen Alkoholen als Lösungs-, Weichmachungs- und Gelatinierungsmittel für Cellulosederiv ate.PATENT APPLICATION CFl Use of esters of cyclic acetals of tetrahydrofurfurol with trihydric and higher alcohols as solvents, softening and gelatinizing agents for cellulose derivatives.
DEI66741D 1940-03-24 1940-03-24 Solvent, softening and gelatinizing agents for cellulose derivatives Expired DE737949C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI66741D DE737949C (en) 1940-03-24 1940-03-24 Solvent, softening and gelatinizing agents for cellulose derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI66741D DE737949C (en) 1940-03-24 1940-03-24 Solvent, softening and gelatinizing agents for cellulose derivatives

Publications (1)

Publication Number Publication Date
DE737949C true DE737949C (en) 1943-07-30

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ID=7196596

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI66741D Expired DE737949C (en) 1940-03-24 1940-03-24 Solvent, softening and gelatinizing agents for cellulose derivatives

Country Status (1)

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DE (1) DE737949C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096028B (en) * 1956-03-27 1960-12-29 Hydrierwerke G M B H Dehydag D The softening and gelatinization of high polymer substances

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096028B (en) * 1956-03-27 1960-12-29 Hydrierwerke G M B H Dehydag D The softening and gelatinization of high polymer substances

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