DE542287C - Process for the production of non-swellable or poorly soluble alkyl cellulose derivatives and structures therefrom - Google Patents

Process for the production of non-swellable or poorly soluble alkyl cellulose derivatives and structures therefrom

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Publication number
DE542287C
DE542287C DEI32382D DEI0032382D DE542287C DE 542287 C DE542287 C DE 542287C DE I32382 D DEI32382 D DE I32382D DE I0032382 D DEI0032382 D DE I0032382D DE 542287 C DE542287 C DE 542287C
Authority
DE
Germany
Prior art keywords
swellable
water
production
cellulose derivatives
poorly soluble
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
DEI32382D
Other languages
German (de)
Inventor
Dr Gerhard Balle
Dr Kurt Sponsel
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 DEI32382D priority Critical patent/DE542287C/en
Application granted granted Critical
Publication of DE542287C publication Critical patent/DE542287C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08Cellulose derivatives
    • C08L1/26Cellulose ethers
    • C08L1/28Alkyl ethers

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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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Description

Verfahren zur Herstellung nicht quellbarer oder schwer löslicher Alkylcellulosederivate und Gebilde daraus Im Hauptpatent 527 197 ist ein Verfahren zur Herstellung wasserfester Gebilde aus wasserlöslichen Cellulosealkyläthern beschrieben, das darin besteht, daß man den wäßrigen Lösungen von Alkylcellulosen solche Stoffe zusetzt, die mit der wäßrigen Lösung Kolloide zu bilden imstande sind.A process for the preparation of non-swellable or sparingly soluble Alkylcellulosederivate and structures thereof in the main Patent 527,197 discloses a process for producing waterproof structure of water-soluble Cellulosealkyläthern described, which consists in adding to the aqueous solutions of alkylcelluloses such substances that with the aqueous solution colloids are able to form.

Als solche Stoffe sind dort beispielsweise angeführt wasserunlösliche Äthylcellulose, noch wasserlösliche schmelzbare Kunstharze aus Phenolen und Aldehyden, Latex, Leinöl, Benzvlalkohol und Oxvbenzvlalkohol bzw. Gemische aus solchen. Die `Wirkungen, die man mit diesen Stoffen in bezug auf den Grad der Wasserfestigkeit des Endproduktes erzielen kann, sind sehr verschieden; vor allem hängt dies stark von der Art und Menge des zugesetzten Körpers ab.Such substances are listed there, for example, as water-insoluble Ethyl cellulose, water-soluble fusible synthetic resins made from phenols and aldehydes, Latex, linseed oil, benzyl alcohol and oxybenzyl alcohol or mixtures of these. the `Effects that one can have with these substances in terms of the degree of water resistance the end product can achieve are very different; above all this depends heavily on the type and amount of added body.

Es wurde nun gefunden, daß man eine besonders hohe Wasserfestigkeit von Gebilden aus wasserlöslichen Cellulosealkvläthern erzielen kann, wenn man den wäßrigen Lösungen der Cellulosealkyläther solche Kolloide zusetzt, die bei einer geeigneten Nachbehandlung, z. B. durch Erwärmen mit oder ohne Luftabschluß, Einfluß kurzwelligen Lichts usw., in einen schwer oder unlöslichen Zustand übergehen.It has now been found that you have a particularly high water resistance of structures made from water-soluble cellulose alkylenes can be achieved if the aqueous solutions of the cellulose alkyl ether added such colloids, which at a suitable post-treatment, e.g. B. by heating with or without exclusion of air, influence short-wave light, etc., pass into a difficult or insoluble state.

Als solche Kolloide kommen in Betracht: oxydierende oder trocknende Öle, Oxybenzylalkohole, noch wasserlösliche schmelzbare Kunstharze aus Phenolen und Aldehyden, ferner die noch in Wasser löslichen oder auch emulgierbaren Kondensationsprodukte aus Harnstoff und Aldehyden oder Phthalsäure und mehrwertigen Alkoholen, Ester des Vinylalkohols, Acrylsäureester usw. Beispiele i. Versetzt man iooo Gewichtsteile einer io°/oigen Methylcelluloselösung in Wasser finit etwa 5 Gewichtsteilen Leinöl oder Leinölstandöl und bringt das Leinöl oder Leinölstandöl in der Methylcelluloselösung in feine, gleichmäßige Verteilung, so kann man diese Mischung auf einen Film verarbeiten, der nach Verdunsten des Lösungsmittels noch wasserlöslich ist, der diese Eigenschaft jedoch völlig verliert, wenn man ihn bei Luftzutritt etwa q. Stunden auf i oo bis i i o° C erwärmt. Das Leinöl bzw. Leinölstandöl ist nun in Linoxyn übergegangen, das in den üblichen Lösungsmitteln nicht oder nur sehr wenig löslich ist und das den Zutritt von Wasser zu den Methylcelluloseteilchen verhindert. Man kann die Erhitzungsdauer noch abkürzen, wenn man dem Leinöl eines der üblichen Sikkative zusetzt. Man kann auch bei gewöhnlicher Temperatur arbeiten, nur dauert dann der übergang in den wasserunlöslichen Zustand entsprechend länger.Such colloids are: oxidizing or drying Oils, oxybenzyl alcohols, still water-soluble fusible synthetic resins made from phenols and aldehydes, as well as the condensation products which are still water-soluble or emulsifiable from urea and aldehydes or phthalic acid and polyhydric alcohols, esters of Vinyl alcohol, acrylic acid esters, etc. Examples i. If one adds iooo parts by weight a 10% methyl cellulose solution in water finitely about 5 parts by weight of linseed oil or linseed oil stand oil and brings the linseed oil or linseed oil stand oil into the methyl cellulose solution in fine, even distribution, so you can process this mixture on a film, which is still water-soluble after the solvent has evaporated, which has this property however, it is completely lost if it is about q when air is admitted. Hours on i oo up Heated to i o ° C. The linseed oil or linseed oil stand oil has now passed into Linoxyn, that in the usual Solvents not or only very slightly soluble and that prevents the access of water to the methyl cellulose particles. Man the heating time can be shortened if one of the usual siccatives is added to the linseed oil clogs. You can also work at normal temperature, but then it takes time transition to the water-insoluble state is correspondingly longer.

z. Man setzt i ooo Gewichtsteilen .einer 15 1>/"i-en wäßrigen Äthylcelluloselösung 15 Gewichtsteile eines in Wasser nicht mehr löslichen, sondern nur noch emulgierbaren Kondensationsproduktes aus Harnstoff und Formaldehyd zu und bringt dieses Kondensationsprodukt in der wäßrigen Äthylcelluloselösung in feine, gleichmäßige Verteilung. Eine aus dieser Mischung hergestellte Folie wird a Stunden auf 8o bis ioo° C erwärmt, wonach sie völlig wasserunlöslich geworden ist.z. 100 parts by weight of a 15 liter aqueous ethyl cellulose solution are used 15 parts by weight of one that is no longer soluble in water, but only emulsifiable Condensation product of urea and formaldehyde and brings this condensation product in the aqueous ethyl cellulose solution in fine, even distribution. One off This mixture produced film is heated to 80 to 100 ° C for a hour, after which it has become completely insoluble in water.

Claims (1)

PATENTANSPRUCH: Abänderung des Verfahrens nach Patent 527 197 zur Herstellung nicht quellbarer oder schwer löslicher Alkylcellulosederivate und Gebilde daraus, dadurch gekennzeichnet, daß man den wäßrigen Lösungen der wasserlöslichen Cellulosealkyläther solche kolloiden Stoffe zusetzt, die in einen schwer oder unlöslichen Zustand übergehen können und diese Mischungen vor, während oder nach Entfernung des Wassers, gegebenenfalls nach Erteilung einer bestimmten Form, solchen Bedingungen unterwirft, unter denen der zugesetzte Körper in den schwer oder unlöslichen Zustand übergeht.PATENT CLAIM: Modification of the process according to Patent 527 197 for the production of non-swellable or poorly soluble alkyl cellulose derivatives and structures therefrom, characterized in that such colloidal substances are added to the aqueous solutions of the water-soluble cellulose alkyl ethers that can pass into a poorly or insoluble state and these mixtures are before , during or after removal of the water, if necessary after giving it a certain form, subjected to such conditions under which the added body passes into the difficult or insoluble state.
DEI32382D 1927-10-11 1927-10-11 Process for the production of non-swellable or poorly soluble alkyl cellulose derivatives and structures therefrom Expired DE542287C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI32382D DE542287C (en) 1927-10-11 1927-10-11 Process for the production of non-swellable or poorly soluble alkyl cellulose derivatives and structures therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI32382D DE542287C (en) 1927-10-11 1927-10-11 Process for the production of non-swellable or poorly soluble alkyl cellulose derivatives and structures therefrom

Publications (1)

Publication Number Publication Date
DE542287C true DE542287C (en) 1932-01-22

Family

ID=7188119

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI32382D Expired DE542287C (en) 1927-10-11 1927-10-11 Process for the production of non-swellable or poorly soluble alkyl cellulose derivatives and structures therefrom

Country Status (1)

Country Link
DE (1) DE542287C (en)

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