DE896558C - Process for the production of polycondensation products - Google Patents

Process for the production of polycondensation products

Info

Publication number
DE896558C
DE896558C DEP2765D DEP0002765D DE896558C DE 896558 C DE896558 C DE 896558C DE P2765 D DEP2765 D DE P2765D DE P0002765 D DEP0002765 D DE P0002765D DE 896558 C DE896558 C DE 896558C
Authority
DE
Germany
Prior art keywords
production
products
polycondensation products
dihaloparaffins
hydrazine
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
DEP2765D
Other languages
German (de)
Inventor
Hans Dr Hoefelmann
Otto Dr Moldenhauer
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.)
Phrix Werke AG
Original Assignee
Phrix Werke 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 Phrix Werke AG filed Critical Phrix Werke AG
Priority to DEP2765D priority Critical patent/DE896558C/en
Priority to FR886430D priority patent/FR886430A/en
Application granted granted Critical
Publication of DE896558C publication Critical patent/DE896558C/en
Expired legal-status Critical Current

Links

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
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/08Polyhydrazides; Polytriazoles; Polyaminotriazoles; Polyoxadiazoles
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/02Polyureas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)

Description

Verfahren zur Herstellung von Polykondensationsprodukten Die Verwendung von a, co-Dihalogenparaffinen zur Herstellung linearer Kondensationsprodukte ist bekannt. Doch beschränkt sich die Verwendung auf die Umsetzung von Dihalogenparaffinen mit aromatischen Kohlenwasserstoffen in Gegenwart von Aluminiumchlorid. Hierbei werden hochmolekulare Produkte erhalten, die außerordentlich verschiedene Eigenschaften aufweisen. Die Festigkeits- und Elastizitätswerte schwanken in weiten Grenzen. Teilweise sind die Produkte hart und spröde, teilweise sind diese Eigenschaften auch gerade umgekehrt von einer fast kautschukartigen Elastizität mit Feuchtigkeitsempfindlichkeit.Process for the production of polycondensation products The use of a, co-dihaloparaffins for the production of linear condensation products known. However, the use is limited to the conversion of dihaloparaffins with aromatic hydrocarbons in the presence of aluminum chloride. Here high molecular weight products are obtained which have extremely different properties exhibit. The strength and elasticity values vary within wide limits. Partially the products are hard and brittle, in some cases these properties are straight conversely, from an almost rubber-like elasticity with moisture sensitivity.

Überraschenderweise ist es nun gelungen, eine neue Gruppe von Kondensationsprodukten aus a, co-Dihalogenparaffinen aufzufinden. Wenn man nämlich die a, orDihalogenparaffine mit Hydrazin kuppelt, so werden ebenfalls unter geeigneten Bedingungen Kondensationsprodukte gewonnen, die sich im Vakuum polymerisieren lassen. Sie ergeben wasserklare oder opaleszierende Schmelzen. Die erhaltenen Produkte sind hygroskopisch und klebrig und können daher trotz ihres guten Fadenziehvermögens zur Herstellung von Textilien nicht verwendet werden. Dagegen sind sie gut brauchbar als Zusätze zu Natur- und Kunstharzen und anderen Kondensationsprodukten. Sie eignen sich besonders zum Weichmachen von Superpolyamiden, die, allein verarbeitet, bekanntlich durch Austrocknung leicht spröde werdende Verformungsprodukte ergeben. Ebenso können sie vorteilhaft als Appreturmittel und in der Klebeindustrie verwendet werden.Surprisingly, it has now been possible to find a new group of condensation products to be found from a, co-dihaloparaffins. If you namely the a, orDihalogenparaffine When coupling with hydrazine, condensation products also form under suitable conditions obtained, which can be polymerized in a vacuum. They result in water-clear or opalescent melts. The products obtained are hygroscopic and sticky and can therefore be used in the manufacture of textiles despite their good thread-pulling properties Not used. On the other hand, they are very useful as additives to natural and Synthetic resins and other condensation products. They are particularly suitable for softening of superpolyamides, which, when processed alone, are known to be easy to dry out deformation products that become brittle result. They can also be beneficial as finishing agents and used in the adhesive industry.

Das allgemeine Reaktionsschema für die Herstellung der neuen Produkte ist wie folgt Da bei der Kondensation Halogenwasserstoff frei wird, ist es zweckmäßig, die Reaktion in Anwesenheit von basischen Stoffen durchzuführen, welche geeignet sind, den Halogenwasserstoff zu binden. Es kommen hierfür in erster Linie die Hydroxyde, Oxyde, Carbonate der Alkalien, Erdalkalien und Erden, ebenso Alkoholate und organische Basen der aliphatischen und aromatischen und heterocyclischen Reihe in Betracht. Während es sich als vorteilhaft erwiesen hat, den ersten. Teil der Reaktion unter Druck durchzuführen, ist es zweckmäßig, die Endkondensation bei möglichst gutem Vakuum durchzuführen, um entsprechend hohen Polymerisationsgrad zu erzielen. An Stelle von Hydrazin kann ebenso das Hydrazinhydrat oder ein Hydrazinsalz Verwendung finden. Im letzten Fall muß eine entsprechende Menge von Alkali zur Abbindung der Säure zugesetzt werden. Beispiel Man versetzt 27 g z,8 Dibromoktan mit 5 g Hydrazinhydrat und erwärmt unter Zusatz von etwas Kaliumcarbonat im Bombenrohr auf etwa zoo' innerhalb von 15 Minuten. Dann steigert man die Temperatur langsam bis Zoo'. Nach 2 Stunden läßt man abkühlen, öffnet das Bombenrohr und bringt das Reaktionsgemisch in einen Vakuumkolben, auf den ein Vakuum von o,= mm Hg gesetzt wird. Man erwärmt nun nochmals über den Schmelzpunkt und saugt 2 Stunden bei diesem Vakuum ab.The general reaction scheme for the preparation of the new products is as follows Since the hydrogen halide is liberated during the condensation, it is advisable to carry out the reaction in the presence of basic substances which are suitable for binding the hydrogen halide. For this purpose, the hydroxides, oxides, carbonates of alkalis, alkaline earths and earths, as well as alcoholates and organic bases of the aliphatic and aromatic and heterocyclic series come into consideration. While it has proven beneficial, the first one. To carry out part of the reaction under pressure, it is advantageous to carry out the final condensation under the best possible vacuum in order to achieve a correspondingly high degree of polymerization. Instead of hydrazine, it is also possible to use hydrazine hydrate or a hydrazine salt. In the latter case, an appropriate amount of alkali must be added to bind the acid. EXAMPLE 27 gz, 8 g of dibromooctane are mixed with 5 g of hydrazine hydrate and heated with the addition of a little potassium carbonate in a sealed tube to about zoo 'within 15 minutes. Then you slowly increase the temperature to Zoo '. After 2 hours the mixture is allowed to cool, the sealed tube is opened and the reaction mixture is placed in a vacuum flask, on which a vacuum of 0.0 mm Hg is applied. It is now heated again above the melting point and suctioned off for 2 hours under this vacuum.

Die erhaltene Schmelze besitzt gutes Fadenziehvermögen. Sie kann als Weichmacher fertigem Superpolyamid einverleibt werden, dessen Neigung zur Versprödung dadurch ohne wesentliche Beeinträchtigung seiner sonstigen wertvollen Eigenschaften herabgesetzt wird.The melt obtained has good thread-pulling properties. You can use it as a Plasticizers are incorporated into finished superpolyamide, which has a tendency to become brittle thus without any significant impairment of its other valuable properties is reduced.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Polykondensationsprodukten aus gesättigten a, oo-Dihalogenparaffinen, dadurch gekennzeichnet, daß man die a, co-Dihalogenparaffine mit annähernd äquivalenten Mengen von Hydräzin bei erhöhter Temperatur, vorzugsweise zunächst unter Anwendung von Druck und danach unter Vakuum, kondensiert.PATENT CLAIM: Process for the production of polycondensation products from saturated a, oo-dihaloparaffins, characterized in that the a, co-dihaloparaffins with approximately equivalent amounts of hydrazine at increased Temperature, preferably initially using pressure and then under vacuum, condensed.
DEP2765D 1939-09-19 1939-09-19 Process for the production of polycondensation products Expired DE896558C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEP2765D DE896558C (en) 1939-09-19 1939-09-19 Process for the production of polycondensation products
FR886430D FR886430A (en) 1939-09-19 1941-08-12 Process for the manufacture of polycondensation products and products, capable of being shaped, obtained by means of this process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP2765D DE896558C (en) 1939-09-19 1939-09-19 Process for the production of polycondensation products

Publications (1)

Publication Number Publication Date
DE896558C true DE896558C (en) 1953-11-12

Family

ID=7358245

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP2765D Expired DE896558C (en) 1939-09-19 1939-09-19 Process for the production of polycondensation products

Country Status (2)

Country Link
DE (1) DE896558C (en)
FR (1) FR886430A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3528949A (en) * 1968-05-07 1970-09-15 Atlas Chem Ind Polymers from ureas and dihalides

Also Published As

Publication number Publication date
FR886430A (en) 1943-10-14

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