DE924897C - Process for the production of plastic masses from mixtures of dicarboxylic acid esters - Google Patents

Process for the production of plastic masses from mixtures of dicarboxylic acid esters

Info

Publication number
DE924897C
DE924897C DEB6983D DEB0006983D DE924897C DE 924897 C DE924897 C DE 924897C DE B6983 D DEB6983 D DE B6983D DE B0006983 D DEB0006983 D DE B0006983D DE 924897 C DE924897 C DE 924897C
Authority
DE
Germany
Prior art keywords
dicarboxylic acid
mixtures
production
plastic masses
acid esters
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
DEB6983D
Other languages
German (de)
Inventor
Walter Dr Speer
Karl Dr Vierling
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB6983D priority Critical patent/DE924897C/en
Application granted granted Critical
Publication of DE924897C publication Critical patent/DE924897C/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
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Herstellung von plastischen Massen aus Dicarbonsäureestergemischen Es ist .bekannt, Adipinsäure mit den verschiedensten Alkoholen in Ester überzuführen, die als plastische Massen oder als Zusatzstoffe zu solchen Massen verwendet werden können.Process for the production of plastic masses from mixtures of dicarboxylic acid esters It is known to convert adipic acid into esters with a wide variety of alcohols, which are used as plastic masses or as additives to such masses can.

Es wurde nun ,gefunden, .daß man zu wertvollen plastischen Massen gelangt, wenn man die bei der katalytischen Oxydation des Cyclohexans, oder seiner Homologen in flüssiger Phase nach dem Abtreiben der flüchtigen Bestandteile übrigbleibenden rohen Dicarbonsäuregemische mit Trimethy lol.propan verestert. Die katalytische Oxydation, des Cyclohexans als solche ist beispielsweise in der französischen Patentschrift 857 615 beschrieben.It has now been found that valuable plastic materials are obtained if the crude dicarboxylic acid mixtures remaining in the catalytic oxidation of cyclohexane or its homologues in the liquid phase after the volatile constituents have been stripped off with trimethylol propane. The catalytic oxidation of cyclohexane as such is for example described in French Patent Specification 857,615.

Die rohen Dicarbonsäuregemische enthalten Dicarbonsäuren von gleicher Kohlenstoffzahl wie die des Ausgangsstoffes neben höhermolekularen Stoffen, deren Zusammensetzung noch unibekannt ist. Der Anteil dieser Verbindungen ist um so höher, je länger man die Oxydation des Cyclohexans betreibt. Für die Veresterung besonders geeignete Dicarbon.säuregemische erhält man, wenn man die Oxydation so weit treibt, da.ß mindestens 40 Hundertteile des eingesetzten Cyclohexans oxydiert worden sind.The crude dicarboxylic acid mixtures contain dicarboxylic acids of the same type Carbon number like that of the starting material in addition to higher molecular weight substances, their Composition is still unknown. The proportion of these compounds is all the higher, the longer one operates the oxidation of the cyclohexane. Especially for esterification Suitable mixtures of dicarboxylic acids are obtained if the oxidation is carried out so far that that at least 40 percent of the cyclohexane used has been oxidized.

Die Herstellung der Ester bewirkt man nach an sich üblichen Methoden, beispielsweise durch Erhitzen der freien Säuren oder der daraus hergestellten Anhydride oder Halogeni.de mit der entsprechenden Menge Trimethylolpropan auf höhere Temperatur. Dabei können Katalysatoren mitverwendet werden. Das bei der Veresüerung der freien Säuren entstehende Wasser kann durch den- Zusatz von Lösungsmitteln., die während der Umsetzung verdampfen und,das. Wasser als Dampf mitführen, entfernt werden.The esters are produced by conventional methods, for example by heating the free acids or the anhydrides made from them or Halogeni.de with the corresponding amount of trimethylolpropane to a higher temperature. Catalysts can also be used here will. That with acidification The water produced by the free acids can be reduced by the addition of solvents., which evaporate during the implementation and, that. Carry along water as steam, removed will.

Die so erhaltenen plastischen, Massen werden unmittelbar als solche, gegebenenfalls nach Zusatz von Füllstoffen, verwendet, beispielsweise als Bodenbelagmassen.The plastic masses obtained in this way are immediately identified as optionally after the addition of fillers, used, for example as flooring compounds.

Es ist bereits bekannt, die Hydrierungsprodukte von Kresolen, z. B. mit Salpeterisiäure, zu oxydieren und darauf mit insbesondere einwertigen, aliphatischen oder alicyclischen Alkoholen zu verestern, wobei die erhaltenen Estergemiscbe als Weichmachungsmittel Verwendung gefunden haben (deutsche Patentschrift 434 730) Es war überraschend, daß die gemäß der Erfindung verwendeten rohen Säuregemische, die unansehnliche braune und schmierige Massen darstellen, sich mit dem Trimethylolpropan verestern lassen würden, wobei plastische Massen entstehen, aus denen sich gute Bodenbelagmassen herstellen lassen.It is already known that the hydrogenation products of cresols, e.g. B. with nitric acid, to be oxidized and then with monovalent, aliphatic ones in particular or to esterify alicyclic alcohols, the resulting ester mixtures as Plasticizers have found use (German Patent 434 730) Es was surprising that the crude acid mixtures used according to the invention, the unsightly brown and greasy masses represent themselves with the trimethylolpropane could be esterified, whereby plastic masses arise from which good ones Have flooring compounds produced.

Beispiel 470 g eines Dicarbonsäuregemisches" wie. man es bei 4stündiger Oxydation von: i6oo g Cyclohexan, dem 1,6 g in 8 g Cyclohexanon gelöstes Kobaltnaphthenat zugesetzt worden sind, mit stündlich 5oo bis 6oo 1 Luft unter 2o at Druck bei z45° und nach dem Abdestillieren des unveränderten Cyclohexans, des Reaktionswassers und des Cyclohexanols und Cyclohexanons erhält, werden mit -,6o g Trimethylolpropan 8 Stunden auf 16o° erhitzt. Der erhaltene Ester ist eine zähe, elastische :Masse, die, mit Füllstoffen versetzt, als Bodenbelag benutzt werden kann. Bei dieser Verwendung ergeben sich etwa die gleichen Eigenschaften wie bei der Verarbeitung eines unter sonst .gleichen Bedingungen hergestellten Esters aus Trimethylolpropan und reiner Adipinsäure.Example 470 g of a dicarboxylic acid mixture "how to do it for 4 hours Oxidation of: 160 g of cyclohexane, 1.6 g of cobalt naphthenate dissolved in 8 g of cyclohexanone have been added, with 500 to 600 liters of air per hour under 20 atm pressure at z45 ° and after the unchanged cyclohexane has been distilled off, the water of reaction and the cyclohexanol and cyclohexanone obtained are with -, 6o g of trimethylolpropane Heated to 16o ° for 8 hours. The ester obtained is a tough, elastic: mass, which, with fillers, can be used as a floor covering. In this use the properties are roughly the same as when processing one under otherwise. The same conditions produced esters from trimethylolpropane and pure Adipic acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von plastischen Massen aus. Dicarbonsäureestergemischen, dadurch gekennzeichnet, daß man die bei der katalytischen Oxydation des Cyclohexarns oder seiner Homologen in flüssiger Phase nach dem Abtreiben der flüchtigen Bestandteile erhaltenen Dicarbonsäuregemische mit Trimethylolpropan in bekannter Weise verestert. Angezogene Druckschriften: Französische Patentschrift Nr. 739 528; Chemisches Zentralblatt, r933, Bd. I, S. 4o5a.PATENT CLAIM: Process for the production of plastic masses. Dicarboxylic acid ester mixtures, characterized in that the dicarboxylic acid mixtures obtained in the catalytic oxidation of the cyclohexamine or its homologues in the liquid phase after the volatile constituents have been driven off are esterified with trimethylolpropane in a known manner. References: French Patent No. 739 528; Chemisches Zentralblatt, r933, Vol. I, p. 405a.
DEB6983D 1941-07-29 1941-07-29 Process for the production of plastic masses from mixtures of dicarboxylic acid esters Expired DE924897C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB6983D DE924897C (en) 1941-07-29 1941-07-29 Process for the production of plastic masses from mixtures of dicarboxylic acid esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB6983D DE924897C (en) 1941-07-29 1941-07-29 Process for the production of plastic masses from mixtures of dicarboxylic acid esters

Publications (1)

Publication Number Publication Date
DE924897C true DE924897C (en) 1955-03-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEB6983D Expired DE924897C (en) 1941-07-29 1941-07-29 Process for the production of plastic masses from mixtures of dicarboxylic acid esters

Country Status (1)

Country Link
DE (1) DE924897C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR739528A (en) * 1931-07-13 1933-01-13 Ig Farbenindustrie Ag Process for the production of softening and gelatinizing agents

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR739528A (en) * 1931-07-13 1933-01-13 Ig Farbenindustrie Ag Process for the production of softening and gelatinizing agents

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