DE554668C - Process for the production of condensation products - Google Patents

Process for the production of condensation products

Info

Publication number
DE554668C
DE554668C DEI41383D DEI0041383D DE554668C DE 554668 C DE554668 C DE 554668C DE I41383 D DEI41383 D DE I41383D DE I0041383 D DEI0041383 D DE I0041383D DE 554668 C DE554668 C DE 554668C
Authority
DE
Germany
Prior art keywords
production
condensation products
parts
products
acetone
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
DEI41383D
Other languages
German (de)
Inventor
Dr Heinrich Hopff
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 DEI41383D priority Critical patent/DE554668C/en
Application granted granted Critical
Publication of DE554668C publication Critical patent/DE554668C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/28Condensation with aldehydes or ketones

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Description

Verfahren zur Herstellung von Kondensationsprodükten Es ist schon vorgeschlagen worden, Polyvinylverbindungen, z. B. Polyvinylacetat oder Polyvinylalkohole, mit Aldehyden zu kondensieren, wobei Produkte, die als Kunstmassen verwendet werden können, erhalten werden.Process for the production of condensation products It is nice it has been proposed to use polyvinyl compounds, e.g. B. polyvinyl acetate or polyvinyl alcohols, to condense with aldehydes, whereby products that are used as artificial masses can be obtained.

Es wurde nun gefunden, daß man ebenfalls als Kunstmassen verwendbare Produkte erhält, wenn man polymere Alkylvinylketone, z. B. Polymethylvinylketon, Polyäthylvinylketon usw., in Gegenwart von sauer reagierenden Substanzen, wie Mineralsäuren oder sauren Salzen, mit Aldehyden umsetzt.It has now been found that they can also be used as art masses Products obtained when polymeric alkyl vinyl ketones, e.g. B. polymethyl vinyl ketone, Polyethylvinylketone, etc., in the presence of acidic substances such as mineral acids or acid salts, reacts with aldehydes.

Zur Umsetzung mit den polymeren Alkylvinylketonen geeignete Aldehyde sind z. B. Formaldehyd und seine Polymeren, Acetaldehyd, Propionaldehyd, Crotonaldehyd, Benzaldehyd usw.Aldehydes suitable for reaction with the polymeric alkyl vinyl ketones are z. B. Formaldehyde and its polymers, acetaldehyde, propionaldehyde, crotonaldehyde, Benzaldehyde, etc.

Bei der Umsetzung kann man auch in Gegenwart von Lösungsmitteln, z. B. Wasser, Eisessig, Aceton usw., arbeiten. In manchen Fällen läßt sich die Umsetzung durch Erhitzen unter Druck stark beschleunigen.In the implementation you can also in the presence of solvents, for. B. water, glacial acetic acid, acetone, etc., work. In some cases it can be implemented accelerate strongly by heating under pressure.

Führt man die Umsetzung in Abwesenheit von Katalysatoren und bei höheren Temperaturen durch, so erhält man im allgemeinen zähe, elastische und in organischen Lösungsmitteln unlösliche Produkte. Arbeitet man dagegen in Gegenwart größerer Mengen von Mineralsäuren in der Kälte, so werden in der Regel weiße, flockige Pulver erhalten, die in organischen Lösungsmitteln, wie Chloroform, Methylenchlorid, Dioxan, Benzolalkoholgemischen u. dgl., löslich sind. Derartige Lösungen lassen sich zur Herstellung von Lacken, Imprägnierungen usw. verwenden und können auch in der üblichen Weise zur Herstellung von Fäden oder Filmen verwendet werden.If the reaction is carried out in the absence of catalysts and at higher rates Temperatures through, one obtains in general tough, elastic and organic Solvent-insoluble products. If, on the other hand, you work in the presence of larger quantities of mineral acids in the cold, white, flaky powders are usually obtained, those in organic solvents such as chloroform, methylene chloride, dioxane, benzene alcohol mixtures and the like, are soluble. Such solutions can be used for the production of paints, Use impregnations etc. and can also be used in the usual way for production of threads or films.

Durch Anwendung von Hitze und Druck werden die erhaltenen Umsetzungsprodukte plastisch, und sie lassen sich daher gut zu Preßmassen verarbeiten. Die Eigenschaften der Produkte können durch Zugabe von Weichmachungsmitteln, Farb- und Füllstoffen usw. in weiten Grenzen variiert werden. Die farblosen Produkte können beispielsweise bei der Herstellung von splitterfreiem Glas als Zwischenschichten zwischen den Glasplatten verwendet werden.The reaction products obtained are obtained by applying heat and pressure plastic, and they can therefore be easily processed into molding compounds. The properties the products can be made by adding plasticizers, dyes and fillers etc. can be varied within wide limits. The colorless products can, for example in the production of shatterproof glass as intermediate layers between the glass plates be used.

Beispiel i ioo Teile polymeres Methylvinylketon werden in 9,ooo Teilen Aceton gelöst, mit 5o Teilen 4o°/oigem Formaldehyd und io Teilen konzentrierter Salzsäure versetzt und 5 Stunden lang zum Sieden erhitzt. Nach dem Verjagen des Lösungsmittels hinterbleibt ein gelb gefärbtes, zähes Harz, das in Aceton quellbar ist und sich in der Hitze zu Formstücken verpressen läßt. Beispiel 2 6o Teile; polymeres Methylvinylmethylketon werden in 8oo Teilen Aceton gelöst und nach Zusatz von 3o Teilen 4o°/oigem Formaldehyd und 1,5 Teilen konzentrierter Salzsäure eine Zeitlang unter Rückflußkühlung zum Sieden erhitzt. Sobald die Umsetzung beendet ist, wird das Aceton abdestilliert und das entstandene Produkt mit Wasser ausgewaschen. Die erhaltene dunkel gefärbte Masse läßt sich gut auf Preßmassen verarbeiten.Example 100 parts of polymeric methyl vinyl ketone are divided into 9,000 parts Dissolved acetone, with 50 parts of 40% formaldehyde and 10 parts more concentrated Hydrochloric acid is added and the mixture is heated to boiling for 5 hours. After chasing away the The solvent leaves a yellow, viscous resin that swells in acetone and can be pressed into molded pieces in the heat. example 2 6o parts; polymeric methyl vinyl methyl ketone are dissolved in 800 parts of acetone and after adding 3o parts 40% formaldehyde and 1.5 parts more concentrated Hydrochloric acid heated to boiling for a while under reflux cooling. Once the implementation is complete, the acetone is distilled off and the resulting product with water washed out. The dark colored mass obtained can be easily processed on molding compounds.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Kondensationsprodukten, dadurch gekennzeichnet, daß man polymere Alkylvinylketone in Gegenwart von sauer reagierenden Substanzen mit Aldehyden umsetzt.PATENT CLAIM: Process for the production of condensation products, characterized in that one polymeric alkyl vinyl ketones in the presence of acidic reacting substances with aldehydes.
DEI41383D 1930-10-05 1930-10-05 Process for the production of condensation products Expired DE554668C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI41383D DE554668C (en) 1930-10-05 1930-10-05 Process for the production of condensation products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI41383D DE554668C (en) 1930-10-05 1930-10-05 Process for the production of condensation products

Publications (1)

Publication Number Publication Date
DE554668C true DE554668C (en) 1932-07-13

Family

ID=7190537

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI41383D Expired DE554668C (en) 1930-10-05 1930-10-05 Process for the production of condensation products

Country Status (1)

Country Link
DE (1) DE554668C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE892244C (en) * 1942-01-28 1953-10-05 Rheinpreussen Ag Process for the production of easily soluble fusible synthetic resins
US3159603A (en) * 1960-03-17 1964-12-01 Ibm Catalytic condensation of polymers of alpha-alkenyl ketones

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE892244C (en) * 1942-01-28 1953-10-05 Rheinpreussen Ag Process for the production of easily soluble fusible synthetic resins
US3159603A (en) * 1960-03-17 1964-12-01 Ibm Catalytic condensation of polymers of alpha-alkenyl ketones

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