DE609553C - Process for the preparation of resinous, oil-soluble phenol-formaldehyde condensation products - Google Patents

Process for the preparation of resinous, oil-soluble phenol-formaldehyde condensation products

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Publication number
DE609553C
DE609553C DEB164281D DEB0164281D DE609553C DE 609553 C DE609553 C DE 609553C DE B164281 D DEB164281 D DE B164281D DE B0164281 D DEB0164281 D DE B0164281D DE 609553 C DE609553 C DE 609553C
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DE
Germany
Prior art keywords
condensation products
oil
resinous
formaldehyde
preparation
Prior art date
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Expired
Application number
DEB164281D
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German (de)
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Hexion Specialty Chemicals AG
Original Assignee
Bakelite AG
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Publication date
Application filed by Bakelite AG filed Critical Bakelite AG
Priority to DEB164281D priority Critical patent/DE609553C/en
Application granted granted Critical
Publication of DE609553C publication Critical patent/DE609553C/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
    • C08G16/00Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00
    • C08G16/02Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes
    • C08G16/0212Condensation 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
    • C08G16/0218Condensation 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
    • C08G16/0225Condensation 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

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Emergency Medicine (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 harzartigen, öllöslichen Phenolformaldehydkondensationsprodukten Es ist bekannt, daß man die freien Xylenole mit Aldehyden, insbesondere Formaldehyd, zu harzartigen Produkten kondensieren kann. Hierbei erhält man dunkelgefärbte Produkte von geringem Wert, die sich als Lackrohstoffe nicht eignen. Auch sind die harzartigen Aldehydkondensationüprodukte der freien Xylenole in fetten Ölen nicht oder nur sehr mangelhaft löslich, und sie weisen einen ihre Verwendung beeinträchtigenden Geruch nach freien Xylenolen auf. Man hat bereits vorgeschlagen, aus Äthern des Phenols und der Kresole und Aldehyden harzartige Kondensationsprodukte dadurch herzustellen, daß man die genannten Äther mit Aldehyden in, Gegenwart großer Säuremengen erhitzte. Dieses Verfahren erfordert trotz der hohen Säurekonzentration -eine sehr lange Reaktionszeit, und auch bei langer Reaktionsdauer entstehen oft Produkte mit außerordentlich niedrigen Schmelzpunkten, z. B. bei gewöhnlicher Temperatur flüssige Körper. Kocht man z. B. Zoo Teile Anisol, 5o Teile Paraformaldehyd, Zoo Teile Essigsäure und 4o Teile konzentrierte Salzsäure 12 Stunden unter Rückfluß, so entsteht trotz der Anwesenheit dieser außerordentlich großen Menge starker Säuren selbst nach 12stündigem Kochen kein festes Harz, sondern ein zähflüssiges Öl.Process for the preparation of resinous, oil-soluble phenol-formaldehyde condensation products It is known that the free xylenols with aldehydes, especially formaldehyde, can condense into resinous products. Dark-colored products are obtained here of little value, which are not suitable as paint raw materials. Also are the resinous ones Aldehyde condensation products of the free xylenols in fatty oils are not or only very little poorly soluble, and they have an odor impairing their use for free xylenols. It has already been proposed to use ethers of phenol and the cresols and aldehydes to produce resinous condensation products by that the ethers mentioned were heated with aldehydes in the presence of large amounts of acid. Despite the high acid concentration, this process requires a very long reaction time, and even with a long reaction time products are often formed with extremely low Melting points, e.g. B. bodies that are liquid at ordinary temperature. If you cook z. B. Zoo parts anisole, 50 parts paraformaldehyde, Zoo parts acetic acid and 4o parts concentrated hydrochloric acid under reflux for 12 hours, it is formed in spite of its presence this extraordinarily large amount of strong acids even after 12 hours of boiling not a solid resin, but a viscous oil.

Es ist nun gefunden worden, daß man für die Lackherstellung wertvolle harzartige Kondensationsprodukte erhalten kann, wenn man Alkyl- oder Aralkyläther der Xylenole mit Formaldehyd unter Zusatz von geeigneten Katalysatoren kondensiert. Hierbei entstehen geruchschwache, harte Kondensationsprodukte, die in fetten Ölen löslich sind. Die Lösungen sind gute, lufttrocknende Lacke. Die Harze sind von heller Farbe und weisen gute Lichtbeständigkeit auf. Bei der Herstellung der Harze ist es nicht nötig, von den Äthern reiner Produkte auszugehen. Man kann rauch Gemische benutzen, die man beispielsweise durch Alkylierung von Xylenolgemischen erhält. Beispiel i 40o Teile Xylenolmethyläther aus technischem Xylenol, 22¢ Teile Formaldehyd, 40%ig; und i2 ccm 2oo/oige Salzsäure werden 8 Stunden am Rührwerk bei ungefähr ioo° kondensiert. Das Harz wird bis .20o° eingedampft. Es ist farblos und leicht löslich in fetten ölen. Die Ausbeute beträgt 4009. Beispiel e Man arbeitet wie in Beispiel i, verwendet jedoch den Xylenoläthyläther. Das entstehende Harz ist farblos und löst sich besonders gut in fetten ölen und auch in Lackbenzin. . Beispiel 3 . Man arbeitet wie in - Beispiel i, verwendet jedoch als Ausgangsstoff 1, 3, 5-Xylenolmetlryläther.It has now been found that they are valuable for paint production Resin-like condensation products can be obtained if one alkyl or aralkyl ethers condensed the xylenols with formaldehyde with the addition of suitable catalysts. This creates hard condensation products with a weak odor, which are found in fatty oils are soluble. The solutions are good, air-drying paints. The resins are lighter in color Color and have good lightfastness. In the manufacture of the resins is it is not necessary to start from the ethers of pure products. You can smoke mixtures use, which are obtained, for example, by alkylation of xylenol mixtures. Example i 40o parts of xylenol methyl ether from technical grade xylenol, 22 parts of formaldehyde, 40%; and i2 ccm of 2oo / o hydrochloric acid are stirred for 8 hours at about 100 ° condensed. The resin is evaporated to .20o °. It is colorless and easily soluble in fats oils. The yield is 4009. Example e The procedure is as in example i, but uses xylenol ethyl ether. The resulting resin is colorless and dissolves particularly well in fatty oils and also in white spirit. . example 3. The procedure is as in - Example i, but 1, 3, 5-xylenol methyl ether is used as the starting material.

Beispiel 4 25g Xylenolbenzyläther werden mit 2o g 3o%igeni Formaldehyd und i ccm 2n-Salzsäure am Rückflußkühler 6 Stunden gekocht, wobei starke V crharzung eintritt. Dann wird in einem Porzellanschälchen bis auf 18o° eingedampft. Beispiel 5 . -2oo g Xytenolmethyläther, 1509 Phenol, flüssig, 30o g Formaldehyd, 30%ig, 8 ccm Salzsäure, 2oo/äig, werden i bis 2 Stunden kondensiert und bis i8'0° eingedampft. Das Harz ist in Leinöl löslich. Beispiel 6 i 5o g Xylenolmethyläther, Zoo g Phenol, flüssig, 300g Formaldehyd, 30%ig, S ccm Salzsäure, 20%ig, werden i bis 2 Stunden kondensiert. Das Harz ist ebenfalls in Leinöl löslich.Example 4 25 g of xylenol benzyl ether are boiled with 20 g of 30% strength formaldehyde and 1 cc of 2N hydrochloric acid on a reflux condenser for 6 hours, severe resinification occurring. Then it is evaporated to 180 ° in a porcelain dish. Example 5. -2oo g of xytenol methyl ether, 1509 phenol, liquid, 30o g of formaldehyde, 30%, 8 ccm of hydrochloric acid, 2oo / eig, are condensed for 1 to 2 hours and evaporated to 18'0 °. The resin is soluble in linseed oil. Example 6 i 5o g Xylenolmethyläther, zoo g of phenol, liquid, 300g of formaldehyde, 30%, S cc hydrochloric acid, 20% strength, are condensed i to 2 hours. The resin is also soluble in linseed oil.

Bei der Ausführung des Verfahrens läßt man auf die Xylenoläther zwecks Kondensation zweckmäßig 1 Mol Formaldehyd oder mehr einwirken. Man kann aber auch mit weniger als i Mol Formaldehyd arbeiten. An Stelle einer wässerigen Formaldehydlösung kann. man auch feste polymere Aldehyde, wie z. B. Trioxymethylen, zur Kondensation verwenden. -Man kann nicht nur Metliyl-und Äthyläther, sondern auch die weiteren Homologen benutzen. Die erhaltenen Harze sind bei gewöhnlicher Temperatur fest; sie härten beim Erhitzen nicht oder doch nur langsam. Man kann die Xylenoläther unter Zumischung von Phenolen mit Formaldehyd kondensieren. Die aus solchen Ausgangsstoffen erhaltenen Kondensationsprodukte sind härtbar. Die härtbaren Harze kann man in üblicher Weise zu Preßmischungen, geformten Gegenständen oder geschichteten Produkten u. dgl. verarbeiten. Außer in lufttrocknenden fetten Ölen sind die erhaltenen -Kondensationsprodukte auch in den bei der Lackbereitung gebräuchlichen Lösungsmitteln, wie z. B. Terpentinöl, Lackbenzin oder Benzol-Alkohol-Gemischen, löslich. Die nicht härtbaren Harze verlieren ihre Öllöslichkeit auch beim Erhitzen nicht.In carrying out the process one leaves on the xylenol ethers for the purpose Condensation expediently act 1 mole of formaldehyde or more. But you can too work with less than 1 mole of formaldehyde. Instead of an aqueous formaldehyde solution can. you also have solid polymeric aldehydes, such as. B. trioxymethylene, for condensation use. -You can not only use methyl and ethyl ethers, but also the others Use homologues. The resins obtained are solid at ordinary temperature; they do not harden when heated, or only slowly. One can use the xylenol ether condense with admixture of phenols with formaldehyde. Those from such raw materials The condensation products obtained are curable. The curable resins can be used in usual Way to press mixes, molded articles or layered products, and the like. Process. Except in air-drying fatty oils, the condensation products obtained are also in the solvents commonly used in paint preparation, such as B. turpentine oil, White spirit or benzene-alcohol mixtures, soluble. The non-curable resins lose their oil solubility not even when heated.

Claims (2)

PATENTANSPRÜcIiE i. Verfahren zur Herstellung von harzartigen, öllöslichen Phenolformaldehydkondensationsprodukten, dadurch gekennzeichnet, daß man Alkyläther oder Aralkyläther der Xylenole mit Formaldehyd unter Zusatz von geeigneten Katalysatoren kondensiert' PATENT CLAIM i. Process for the production of resinous, oil-soluble Phenol-formaldehyde condensation products, characterized in that alkyl ethers or aralkyl ethers of xylenols with formaldehyde with the addition of suitable catalysts condensed' 2. Veffahren nach Anspruch i, dadurch gekennzeichnet, daß man die Xylenol äther im Gemisch mit Phenolen verwendet:2. Veffahren according to claim i, characterized in that the xylenol ether used in a mixture with phenols:
DEB164281D 1932-05-13 1932-05-13 Process for the preparation of resinous, oil-soluble phenol-formaldehyde condensation products Expired DE609553C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB164281D DE609553C (en) 1932-05-13 1932-05-13 Process for the preparation of resinous, oil-soluble phenol-formaldehyde condensation products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB164281D DE609553C (en) 1932-05-13 1932-05-13 Process for the preparation of resinous, oil-soluble phenol-formaldehyde condensation products

Publications (1)

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DE609553C true DE609553C (en) 1935-02-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE868349C (en) * 1943-02-27 1953-02-23 Bayer Ag Process for the production of condensation products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE868349C (en) * 1943-02-27 1953-02-23 Bayer Ag Process for the production of condensation products

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