DE357758C - Process for the preparation of resinous condensation products from derivatives of phenol carbonic acids and formaldehyde - Google Patents

Process for the preparation of resinous condensation products from derivatives of phenol carbonic acids and formaldehyde

Info

Publication number
DE357758C
DE357758C DEF46385D DEF0046385D DE357758C DE 357758 C DE357758 C DE 357758C DE F46385 D DEF46385 D DE F46385D DE F0046385 D DEF0046385 D DE F0046385D DE 357758 C DE357758 C DE 357758C
Authority
DE
Germany
Prior art keywords
formaldehyde
preparation
condensation products
derivatives
resinous condensation
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
DEF46385D
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Priority to DEF46385D priority Critical patent/DE357758C/en
Application granted granted Critical
Publication of DE357758C publication Critical patent/DE357758C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G16/00—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00
    • C08G16/02—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes
    • C08G16/0212—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with acyclic or carbocyclic organic compounds
    • C08G16/0218—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with acyclic or carbocyclic organic compounds containing atoms other than carbon and hydrogen
    • C08G16/0225—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with acyclic or carbocyclic organic compounds containing atoms other than carbon and hydrogen containing oxygen

Landscapes

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

Description

Verfahren zur Darstellung von barzartigen Kondensationsprodukten aus Derivaten von Phenolcarbonsäuren und Formaldehyd. In weiterer Ausbildung des Verfahrens des Hauptpatents 339495 wurde gefunden, daß man ebenfalls züi synthetischen Harzen gelangt, welche in schwachen Alkalien löslich sind, wenn man an Stelle der aromatischen Oxycarbonsäure die entsprechenden Äthercarbonsäuren mit Formaldehyd oder Formaldehyd abspaltenden Mitteln kondensiert.Process for the preparation of bar-like condensation products from derivatives of phenol carboxylic acids and formaldehyde. In a further development of the process of the main patent 339495 it was found that synthetic resins which are soluble in weak alkalis are also obtained if the corresponding ether carboxylic acids are condensed with formaldehyde or formaldehyde-releasing agents instead of the aromatic oxycarboxylic acid.

B e i s p i e 1 e.B ice p y 1 e.

i. Eine Mischung von i5o Teilen o-Methoxybenzoesäure, 8o Teile Formaldehyd (3o prozentig) und 2o Teile konzentrierter Schwefelsäure werden so lange unter Rückflußkühlung im Sieden gehalten, bis sich ein zähes 01 abgeschieden hat. Dieses wird mit Wasser heiß ausgewaschen, bis alle Schwefelsäure entfernt ist, und hierauf'über ioo' erhitzt. Das Produkt schmilzt zu einer klaren Masse zusammen, die-nach dem Erkalten zu einem durchsichtigen, hellen Harz erstarrt, das sich in Alkohol sowie in schwachen Alkalien löst. 2. 7,oo Teile 2-Äthoxynaphthalin-3-carbonsäure werden in Essigsäure gelÖSt, 25 Teile Paraformaldehyd und 25 Teile konzentrierte Salzsäure hinzugefügt und die Lösung mehrere Stunden am Rückflußkühler gekocht. Nach beendeter Kondensation wird die Essigsäure mit der Salzsäure abdestilliert und der Rück- stand kurze Zeit auf 150' erhitzt. Man erhält ein sodalösliches Harz.i. A mixture of i5o parts of o-methoxybenzoic acid, 8o parts of formaldehyde (3o percent) and 2o parts of concentrated sulfuric acid are kept so long in the boiling under reflux until a viscous has deposited 01. This is washed out with hot water until all sulfuric acid has been removed, and then heated to over 100. The product melts together to form a clear mass, which - after cooling, solidifies to a transparent, light-colored resin that dissolves in alcohol and weak alkalis. 2. 7.000 parts of 2-ethoxynaphthalene-3-carboxylic acid are dissolved in acetic acid, 25 parts of paraformaldehyde and 25 parts of concentrated hydrochloric acid are added and the solution is refluxed for several hours. After the condensation has ended, the acetic acid is distilled off with the hydrochloric acid and the residue is heated to 150 ° for a short time. A resin which is soluble in soda is obtained.

Claims (1)

PATENT-ANspRucii: Abänderung des durch Patent 339495 geschützten Verfahrens zur Darstellung von harzartigen Kondensationsprodukten aus Phenolcarbonsäuren und Aldehyden, dadurch gekennzeichnet, daß man an Stelle der aromatischen Oxycarbonsäuren die entsprechenden Äthercarbonsäuren mit Formaldehyd oder Formaldehyd abspaltenden Mitteln behandelt.PATENT ANspRucii: Modification of the process protected by patent 339495 for the preparation of resinous condensation products from phenol carboxylic acids and aldehydes, characterized in that the corresponding ether carboxylic acids are treated with formaldehyde or formaldehyde-releasing agents instead of the aromatic oxycarboxylic acids.
DEF46385D 1920-03-05 1920-03-05 Process for the preparation of resinous condensation products from derivatives of phenol carbonic acids and formaldehyde Expired DE357758C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF46385D DE357758C (en) 1920-03-05 1920-03-05 Process for the preparation of resinous condensation products from derivatives of phenol carbonic acids and formaldehyde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF46385D DE357758C (en) 1920-03-05 1920-03-05 Process for the preparation of resinous condensation products from derivatives of phenol carbonic acids and formaldehyde

Publications (1)

Publication Number Publication Date
DE357758C true DE357758C (en) 1922-08-31

Family

ID=7100998

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF46385D Expired DE357758C (en) 1920-03-05 1920-03-05 Process for the preparation of resinous condensation products from derivatives of phenol carbonic acids and formaldehyde

Country Status (1)

Country Link
DE (1) DE357758C (en)

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