DE683865C - Softeners, especially for cellulose ester coatings - Google Patents

Softeners, especially for cellulose ester coatings

Info

Publication number
DE683865C
DE683865C DEC49947D DEC0049947D DE683865C DE 683865 C DE683865 C DE 683865C DE C49947 D DEC49947 D DE C49947D DE C0049947 D DEC0049947 D DE C0049947D DE 683865 C DE683865 C DE 683865C
Authority
DE
Germany
Prior art keywords
cellulose ester
softeners
plasticizer
coatings
ester coatings
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
DEC49947D
Other languages
German (de)
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.)
Carbide and Carbon Chemicals Corp
Original Assignee
Carbide and Carbon Chemicals Corp
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 Carbide and Carbon Chemicals Corp filed Critical Carbide and Carbon Chemicals Corp
Application granted granted Critical
Publication of DE683865C publication Critical patent/DE683865C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids

Landscapes

  • 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)

Description

Weichmachungsmittel, insbesondere für Celluloseesterlacke Die Erfindung betrifft ein Weichmachungsmittel, insbesondere für Celluloseesterlacke, aber auch für Lacke aus natürlichen Harzen und Pflanzenölen oder für Firnisse aus trocknenden Ölen und schließlich auch für solche Überzugsmittel, in denen bekannte Kunstharze die wesentlichen Bestandteile bilden.Plasticizers, in particular for cellulose ester paints. The invention relates to a plasticizer, in particular for cellulose ester coatings, but also for varnishes made from natural resins and vegetable oils or for varnishes made from drying Oils and finally also for those coating agents in which known synthetic resins make up the essential components.

Untersuchungen haben ergeben, daß der Di-a-äthylbutanol-r-bernsteinsäureester, der durch Umsetzung dieses Alkohols mit Bernsteinsäure gebildet ist, eine ausgezeichnete weichmachende Wirkung in Überzügen auf Grundlage üblicher Cellulosederivate, Harze und Öle hat.Investigations have shown that the di-a-ethylbutanol-r-succinic acid ester, formed by the reaction of this alcohol with succinic acid, an excellent one softening effect in coatings based on common cellulose derivatives, resins and has oils.

Der Di-a-äthylbutylbernsteinsäureester siedet bei ungefähr 183 bis i85° unter einem Druck von q. mm.The di-a-ethylbutylsuccinic acid ester boils at about 183 to 185 ° under a pressure of q. mm.

Die Überlegenheit des neuen Weichmachungsmittels zeigt sich besonders im Vergleich zu dem für diese Zwecke am meisten gebräuchlichen Trikresylphosphat bzw. Dibutylphthalat.The superiority of the new plasticizer is particularly evident compared to tricresyl phosphate, which is most commonly used for these purposes and dibutyl phthalate, respectively.

Eine ungewöhnliche Eigenschaft von Filmen, welche Diäthylbutylsuccinat. als Weichmacher enthalten, besteht darin, daß sie negative Temperaturkoeffizienten aufweisen, d. h. ihre Biegsamkeit nimmt mit abnehmender Temperatur zu. Dieses neue und unerwartete Ergebnis zeigt den besonderen industriellen Wert der Erfindung für alle jene Fälle, wo solche Filme oder Lacküberzüge vergleichsweise tiefen Temperaturen ausgesetzt werden, bei welchen die gleichen Filme mit anderen Weichmachern gewöhnlich eine Neigung zum Spröde- oder Brüchigwerden zeigen.An unusual property of films containing diethyl butyl succinate. Contained as plasticizers, consists in that they have negative temperature coefficients have, d. H. their flexibility increases with decreasing temperature. This new one and unexpected result shows the particular industrial value of the invention for all those cases where such films or lacquer coatings are comparatively low temperatures in which the same films with other plasticizers are usually exposed show a tendency to become brittle or fragile.

Eine andere wichtige Eigenschaft von Diz-äthylbutylsuccinat als Weichmacher enthaltenden Nitrocellulosefilmen besteht darin, daß der prozentische Verlust an Biegsamkeit bei Bestrahlung mit ultraviolettem Licht geringer ist als jener von Nitrocellulosefilmen; welche Dibutylphthalat oder Trikresylphosphat als Weichmacher enthalten.Another important property of diz-ethyl butyl succinate as a plasticizer containing nitrocellulose films is that the percentage loss of Flexibility when irradiated with ultraviolet light is less than that of Nitrocellulose films; which dibutyl phthalate or tricresyl phosphate as plasticizers contain.

Diese zwei Eigenschaften, nämlich der negative Temperaturkoeffizient und die bessere Widerstandsfähigkeit gegen ultraviolette Strahlen, werden zahlenmäßig aus umstehender Tabelle ersichtlich. Ferner zeigt der Ester gemäß der Erfindung eine für einen Weichmacher besonders günstige, d. h. niedrige Flüchtigkeit.These two properties, namely the negative temperature coefficient and the better resistance to ultraviolet rays, are outnumbered can be seen from the table below. Furthermore, the ester shows according to According to the invention, a particularly advantageous one for a plasticizer, d. H. low volatility.

Ein Vergleich der Biegsamkeit und Zu . festigkeit von Nitrocellulosefilmen, weh.: einerseits mit dem Weichmacher gemäß der Erfindung und andererseits mit Trikresylphosphat plastiziert worden sind, ergab eben--Überlegenheit die deutliche Überlegenheit des neuen Weichmachers. Verlustprozente Temperaturkoeffizient Weichmacher an Biegsamkeit nach der Biegsamkeit Ultraviolettlichtbogenbestrahlung zwischen o bis 3o° C während q. Stunden pro 0 C Di-2-äthylbutylsuccinat................ 65 - -0,57 Dibutylphthalat . . . . . . . . . . . . . . . . . . . . . . 72 +0,18 Trikresylphosphat .... ... ... ... ....... 78 -{- 1,9 A comparison of flexibility and closeness. strength of nitrocellulose films, wo .: on the one hand with the plasticizer according to the invention and on the other hand with tricresyl phosphate, resulted in the clear superiority of the new plasticizer. Loss percentage temperature coefficient Plasticizer of flexibility after flexibility Ultraviolet arc irradiation between 0 and 30 ° C while q. Hours per 0 C Di-2-ethylbutyl succinate ................ 65 - -0.57 Dibutyl phthalate. . . . . . . . . . . . . . . . . . . . . . 72 +0.18 Tricresyl phosphate .... ... ... ... ....... 78 - {- 1.9

Claims (1)

PATENTANSPRUCH: Verwendung des Di-a-äthylbutanoli-bernsteinsäureesters als Weichmachungsmittel, insbesondere für Celluloseesterlacke.PATENT CLAIM: Use of the di-a-ethylbutanoli-succinic acid ester as a plasticizer, especially for cellulose ester coatings.
DEC49947D 1933-12-21 1934-12-05 Softeners, especially for cellulose ester coatings Expired DE683865C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US683865XA 1933-12-21 1933-12-21

Publications (1)

Publication Number Publication Date
DE683865C true DE683865C (en) 1939-11-17

Family

ID=22082232

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC49947D Expired DE683865C (en) 1933-12-21 1934-12-05 Softeners, especially for cellulose ester coatings

Country Status (1)

Country Link
DE (1) DE683865C (en)

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