DE916119C - Process for the production of phenoplasts - Google Patents

Process for the production of phenoplasts

Info

Publication number
DE916119C
DE916119C DEA11309D DEA0011309D DE916119C DE 916119 C DE916119 C DE 916119C DE A11309 D DEA11309 D DE A11309D DE A0011309 D DEA0011309 D DE A0011309D DE 916119 C DE916119 C DE 916119C
Authority
DE
Germany
Prior art keywords
nitrourea
phenoplasts
production
phenol
ratio
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
DEA11309D
Other languages
German (de)
Inventor
Alelio Gaetano F D
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.)
AEG AG
Original Assignee
AEG 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 AEG AG filed Critical AEG AG
Application granted granted Critical
Publication of DE916119C publication Critical patent/DE916119C/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
    • C08G14/00—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
    • C08G14/02—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes
    • C08G14/04—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols
    • C08G14/06—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols and monomers containing hydrogen attached to nitrogen
    • C08G14/08—Ureas; Thioureas

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)

Description

Verfahren zur Herstellung von Phenoplasten Die Erfindung betrifft ein Verfahren znr Herstellung von Phenoplasten, d. h. wärmeumwandelbarer, harzartiger Kondensationsprodukte aus Phenolen und Aldehyden, die unter Wärnie und gegebenenfalls Druck in den unlöslichen, unschmelzbaren Zustand übergehen.Process for Making Phenoplasts The invention relates to a method of making phenoplasts; d. H. heat convertible, resinous Condensation products of phenols and aldehydes, which are heated under heat and possibly Pressure change into the insoluble, infusible state.

Es wurde gefunden, daB die Eigenschaften von Phenoplasten dadurch verbessert werden können, daB bei der Kondensation neben der Phenol- und Aldehydkomponente noch Nitroharnstoffe der allgemeinen Formel mitverwendet werden. An Stelle von und neben Nitroharnstoff können auch Salze von Nitroharnstoff verwendet werden. Als Aldehyde können auch neben Formaldehyd die aus der Technik der Phenoplaste bekannten anderen Aldehyde verwendet werden, ebenso, wie an Stelle von Phenol substituierte Phenole zur Herstellung der Phenoplaste geeignet sind.It has been found that the properties of phenoplasts can be improved by adding nitroureas of the general formula in addition to the phenol and aldehyde components during the condensation can also be used. Instead of and in addition to nitrourea, salts of nitrourea can also be used. In addition to formaldehyde, the other aldehydes known from the art of phenoplasts can also be used as aldehydes, just as, instead of phenol, substituted phenols are suitable for the production of phenoplasts.

Die Kondensation kann in bekannter Weise unter alkalischen, saueren oder neutralen Bedingungen erfolgen. Die Härtungsgeschwindigkeit kann besonders gut dann eingestellt werden, wenn ein bestimmtes Verhältnis von Nitroharnstoff zu Nitroharnstoffsalz eingehalten wird, und zwar erhärtet das Harz um so schneller, je größer das Verhältnis von Nitroharnstoff zu Nitroharnstoffsalz ist. Wird das Verhältnis von N itroharnstoff zu Nitroharnstoffsalz verkleinert, so werden also langsamer erhärtende Produkte erhalten, deren Erhärtungszeit besser überwacht werden kann. Beispiel 94 Teile (etwa i Mol) Phenol, 89 Teile wässerige Formaldehydlösung (37,1 % entsprechen etwa i,i Mol) und i Teil Nitroharnstoff (etwa o,i Mol) werden gemischt und z Stunde am Rückflußkühler gekocht. Es scheidet sich dabei ein weißes Zwischenkondensationsprodukt aus. Die Masse wird im Vakuum bei ioo° entwässert. Die entwässerte Masse ist bei Zimmertemperatur ein festes, brüchiges Harz, das in bekannter `'eise mit Füll- und anderen Zusatzstoffen verarbeitet werden kann. Das Verhältnis der Reaktionsteilnehmer kann in bekannter Weise in weiten Grenzen verändert werden, doch ist es zweckmäßig, auf i bis 3 Mol Aldehyd i Mol Phenol plus Nitroharnstoff zu nehmen. Dabei soll im allgemeinen der Nitroharnstoffanteil 1/4 Mol auf jedes Mol Phenol nicht überschreiten.The condensation can be carried out in a known manner under alkaline or acidic or neutral conditions. The curing speed can be special well then be adjusted when a certain ratio of nitrourea to Nitrourea salt is adhered to, and that the resin hardens in such a way more quickly, the greater the ratio of nitrourea to nitrourea salt. It will The ratio of nitrourea to nitrourea salt is reduced, so are Get slower hardening products, the hardening time of which can be better monitored can. Example 94 parts (about 1 mole) phenol, 89 parts aqueous formaldehyde solution (37.1% correspond to about i, i mol) and i part of nitrourea (about o, i mol) will be mixed and refluxed for z hour. It separates a white one Intermediate condensation product from. The mass is dehydrated in a vacuum at 100 °. The dehydrated mass is a solid, brittle resin at room temperature, which in known `` 'ice can be processed with fillers and other additives. That The ratio of the reaction participants can be varied within wide limits in a known manner but it is advisable to use 1 to 3 moles of aldehyde and 1 mole of phenol plus nitrourea gain weight. In general, the proportion of nitrourea should be 1/4 mole for each Do not exceed moles of phenol.

Die erhaltenen Kunstharze können in bekannter Weise zu Preßmassen, in Verbindung mit Lösungsmitteln und Ölen zu Lacken und in Verbindung mit Weichmachungsmitteln verarbeitet werden.The synthetic resins obtained can be used in a known manner to form molding compounds, in connection with solvents and oils to paints and in connection with plasticizers are processed.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Phenoplasten, dadurch gekennzeichnet, daß neben der Phenol-und Aldehydkomponente Nitroharnstoffe und/oder Nitroharnstoffsalze mitverwendet werden. Claim: Process for the production of phenoplasts, characterized in that, in addition to the phenol and aldehyde components, nitroureas and / or nitrourea salts are also used.
DEA11309D 1939-09-27 1940-09-28 Process for the production of phenoplasts Expired DE916119C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US916119XA 1939-09-27 1939-09-27

Publications (1)

Publication Number Publication Date
DE916119C true DE916119C (en) 1954-08-05

Family

ID=22228714

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA11309D Expired DE916119C (en) 1939-09-27 1940-09-28 Process for the production of phenoplasts

Country Status (1)

Country Link
DE (1) DE916119C (en)

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