AT77643B - Process for the production of condensation products from phenols and formaldehyde, which are characterized by their special hardness. - Google Patents

Process for the production of condensation products from phenols and formaldehyde, which are characterized by their special hardness.

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Publication number
AT77643B
AT77643B AT77643DA AT77643B AT 77643 B AT77643 B AT 77643B AT 77643D A AT77643D A AT 77643DA AT 77643 B AT77643 B AT 77643B
Authority
AT
Austria
Prior art keywords
phenols
formaldehyde
production
condensation products
special hardness
Prior art date
Application number
Other languages
German (de)
Inventor
Jonas Walter Aylsworth
Original Assignee
Jonas Walter Aylsworth
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 Jonas Walter Aylsworth filed Critical Jonas Walter Aylsworth
Application granted granted Critical
Publication of AT77643B publication Critical patent/AT77643B/en

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Description

  

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    Verfahren zur Herstellung von durch besondere Härte sich auszeichnenden Kondensationprodukten aus Phenoten und Formaldehyd.   



   Die Erfindung bezieht sich auf die Herstellung besonders harter Kondensationsprodukte aus Phenolen und Formaldehyd. Die gemäss dem vorliegenden Verfahren hergestellten Produkte eignen sich besonders gut zur Herstellung von Schallwalzen und Druckplatten, elektrischen 
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Vorliegende Erfindung besteht nun in der Verwendung gewisser Stoffe, welche im Ver- gleiche zu den bisher benutzten viel wirksamer sind, da durch ihre Verwendung Produkte er- halten werden, welche in der Kälte härter sind und unter Anwendung von Hitze und Druck leichter geformt, geprägt oder sonst bearbeitet werden können, als die bisherigen. Solche Stoffe sind die   huheren Halogensubstitutionsprodukte   der   Phenole, beispielsweise PentachlorpMenol   bzw. ihre Homologen und Derivate. 



     These     Verbindungen, im besonderen   die höheren Substitutionsprodukte, haben die Eigen-   schaft, freies Ammoniak   unter Bildung fester, in Wasser   praktische   unlöslicher Körper zu binden. 



    Dies ist besonders vorteilhaft, wenn   das Endprodukt durch Behandlung des löslichen Phenolharzes mit Hexamethylentetramin hergestellt werden soll. 



   Es ist nicht erforderlich, ein bestimmtes reines Chlorderivat zu benutzen, immerhin ist 
 EMI1.2 
 vorher destilliert oder sublimiert werden. In diesem Falle wird das Destillat oder Sublimat verwendet oder es kann ein Teil destilliert oder   sub ! imiert und   nur der pechartige Rückstand benutzt werden. Wird an Stelle von Phenol Kresol verwendet, so empfiehlt es sich. Tetrachlorkresol 
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   Es könen auch Verhindungen halogenhaltiger Phenole mit Basen, ausgenommen Ammoniak als Zusätze bemitzt werdem. Werden Formaldehyd oder dessen Polymeren statt Hexamethylentetramin als Härmgsmittel verwendet, so kann man, ehe die endgiltige Härtungsreaktion 
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 20 Teile Pentachlorphenol, 4 Teile Naphthalin, 20 Teile Holzstoff, 2 Teile Lampenschwarz. 



   Diese Mischung kann durch erhitzte   Waen gemistht   werden, welche gerade heiss genug sind. um die Masse teigartig zu halten, so dass sie nicht erhärten kann. Es genügt eine Behandlung%dauer von etwa 15 Minuten, Um das Produkt in den Endzustand überzuführen, wird es durch 
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    Process for the production of condensation products from phenotes and formaldehyde, which are characterized by particular hardness.



   The invention relates to the production of particularly hard condensation products from phenols and formaldehyde. The products produced according to the present process are particularly suitable for the production of sonic rollers and printing plates, electrical
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The present invention consists in the use of certain substances which are much more effective compared to those previously used, since their use results in products which are harder in the cold and which are more easily shaped or embossed with the application of heat and pressure or can be edited otherwise than the previous ones. Such substances are the higher halogen substitution products of the phenols, for example pentachloropenol or their homologues and derivatives.



     These compounds, especially the higher substitution products, have the property of binding free ammonia with the formation of solid bodies which are practically insoluble in water.



    This is particularly advantageous when the end product is to be made by treating the soluble phenolic resin with hexamethylenetetramine.



   It is not necessary to use any particular pure chlorine derivative, after all it is
 EMI1.2
 previously distilled or sublimed. In this case the distillate or sublimate is used or a part can be distilled or sub! and only the pitch-like residue can be used. If cresol is used instead of phenol, it is recommended. Tetrachloride cresol
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   It is also possible to prevent halogenated phenols with bases, with the exception of ammonia as additives. If formaldehyde or its polymers are used as a heating agent instead of hexamethylenetetramine, one can do this before the final hardening reaction
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 20 parts of pentachlorophenol, 4 parts of naphthalene, 20 parts of wood pulp, 2 parts of lamp black.



   This mixture can be mucked through heated machines which are just hot enough. to keep the mass dough-like so that it cannot harden. A treatment of around 15 minutes is sufficient to bring the product to its final state
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Claims (1)

Selbstverständlich können dem Produkt beliebige Füllstoffe, wie Mineralfarbstoffe, Faser- stoffe aller Art, metallische Einlagen und dgl. einverleibt werden. Die in der beschriebenen Weise hergestellten Produkte sind durchscheinend und nicht entflammbar ; unter der Einwirkung Ger Sonne erweichen sie nicht und werden nicht blasig und werden auch night durch leichte Er- hitzung oder Feuchtigkeit angegriffen, PATENT-ANSPRUCH : Verfahren zur Herstellung von durch besondere Härte sich auszeichnenden Kondensationsprodukten aus Phenolen und Formaldehyd, darin bestehend, dass die Komponenten bei Gegenwart von Halogenderivaten der Phenole mit oder ohne Zusatz von Fiillstoffenin Reaktion gebracht werden. Of course, any fillers, such as mineral dyes, fiber materials of all kinds, metallic inserts and the like can be incorporated into the product. The products made in the manner described are translucent and non-flammable; under the influence of the sun they do not soften and do not become blistered and are also not attacked by slight heating or moisture, PATENT CLAIM: Process for the production of condensation products of phenols and formaldehyde, which are characterized by particular hardness, in that the components are brought into reaction in the presence of halogen derivatives of the phenols with or without the addition of fillers.
AT77643D 1911-05-06 1911-05-06 Process for the production of condensation products from phenols and formaldehyde, which are characterized by their special hardness. AT77643B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT77643T 1911-05-06

Publications (1)

Publication Number Publication Date
AT77643B true AT77643B (en) 1919-08-11

Family

ID=3599248

Family Applications (1)

Application Number Title Priority Date Filing Date
AT77643D AT77643B (en) 1911-05-06 1911-05-06 Process for the production of condensation products from phenols and formaldehyde, which are characterized by their special hardness.

Country Status (1)

Country Link
AT (1) AT77643B (en)

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