DE449276C - Process for the preparation of derivatives of resinous condensation products from phenols and aldehydes - Google Patents

Process for the preparation of derivatives of resinous condensation products from phenols and aldehydes

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Publication number
DE449276C
DE449276C DEF46027D DEF0046027D DE449276C DE 449276 C DE449276 C DE 449276C DE F46027 D DEF46027 D DE F46027D DE F0046027 D DEF0046027 D DE F0046027D DE 449276 C DE449276 C DE 449276C
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Germany
Prior art keywords
phenols
aldehydes
condensation products
parts
derivatives
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Expired
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DEF46027D
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German (de)
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IG Farbenindustrie AG
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IG Farbenindustrie AG
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Priority to DEF46027D priority Critical patent/DE449276C/en
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Publication of DE449276C publication Critical patent/DE449276C/en
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    • 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
    • C08G8/00Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/28Chemically modified polycondensates

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  • 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 Darstellung von Derivaten harzartiger Kondensationsprodukte aus Phenolen und Aldehyden. In weiterer Ausbildung des Verfahrens des Patents 386 733 und des Zusatzpatents 391 539 wurde gefunden, daß man ebenfalls zu in schwachem Alkali löslichen, harzartigen Kondensationsprodukten von sehr guten Eigenschaften gelangt, wenn man unverändert schmelzbare, harzartige Kondensationsprodukte aus Phenolen und Aldehyden mit einem Molekül einer Halogenfettsäure behandelt.Process for the preparation of derivatives of resinous condensation products from phenols and aldehydes. In further development of the process of the 386 patent 733 and the additional patent 391 539 has been found that you can also in weak Alkali-soluble, resin-like condensation products with very good properties if you get fusible, resin-like condensation products from unchanged Phenols and aldehydes treated with a molecule of a halogenated fatty acid.

Die so erhaltenen Produkte unterscheiden sich wesentlich von den in der Chemiker-Zeitung 4o [i g i 6] Seite 725 bis 727 beschriebenen. Zur Herstellung letzterer werden Resole, d. h.- solche Phenol-Aldehyd-Kondensationsprodukte angewendet, welche beim Erhitzen über i oo° in unsclunelzbare Körper übergehen, während nach dem vorliegenden Verfahren unverändert - schmelzende Kondensationsprodukte aus Phenolen und Aldehyden (\ovolake) als Ausgangsstoffe benutzt werden. Im Gegensatz zu den aus Resolen erhältlichen Produkten sind die nach v orliegendem Verfahren gewonnenen leicht schmelz#-bar. Beispiele. i. ioo Teile des Kondensationsproduktes aus Phenol und Acetaldehyd, welches man erhält, wenn man die beiden Komponenten im Verhältnis 3:i mit geringen Mengen Salzsäure behandelt, werden mit go Teilen Chloressigsäure vermischt und in die auf etwa 8o° erwärmte Mischung langsam unter Rühren 22o Teile Natronlauge (von 4.o° B6) eingetragen. Es tritt lebhafte Umsetzung unter Erhöhung der Temperatur ein. Die Lösung reagiert zum Schluß schwach alkalisch. Sie wird filtriert, das Filtrat angesäuert, die ausgeschiedene Harzmasse mit Wasser ausgewaschen und schließlich einige Zeit über ioo° erhitzt. Man erhält ein durchsichtiges schmelzbares Harz, welches nicht nur in Alkohol; Aceton und Ätzalkalien, sondern auch in schwachen Alkalien, wie verdünnter Soda-bzw. Boraxlösung, leicht löslich ist.The products thus obtained differ significantly from those described in Chemiker-Zeitung 40 [igi 6], pages 725 to 727 . To produce the latter, resoles, ie phenol-aldehyde condensation products, are used which, when heated to over 100 °, are converted into non-sensitive bodies, while in the present process unchanged - melting condensation products of phenols and aldehydes (\ ovolaks) are used as starting materials. In contrast to the products obtainable from resoles, those obtained by the present process are easily meltable. Examples. i. 100 parts of the condensation product of phenol and acetaldehyde, which is obtained when the two components are treated in a ratio of 3: 1 with small amounts of hydrochloric acid, are mixed with 20 parts of chloroacetic acid and 22o parts of sodium hydroxide solution are slowly added to the mixture, heated to about 80 °, with stirring (from 4.o ° B6). Vigorous reaction occurs with an increase in temperature. The solution finally reacts in a weakly alkaline manner. It is filtered, the filtrate acidified, the resin mass which has separated out is washed out with water and finally heated to over 100 ° for some time. A transparent meltable resin is obtained, which is not only in alcohol; Acetone and caustic alkalis, but also in weak alkalis, such as dilute soda or. Borax solution, is easily soluble.

2. Das durch kurzes Erhitzen von i i o Teilen m-Kresol und go Teilen Formaldehyd (3oprozentig) bei Gegenwart geringer Mengen eines Katalysators (Salzsäure) erhaltene Kondensationsprodukt wird in 23o Teilen konzentrierter Natronlauge (von 4.o° B6) und Zoo Teilen Wasser gelöst und bei etwa-8o° langsam 95 Teile. Chlaressigsäure eingetragen. Nach beendeter Umsetzung erfolgt die Aufarbeitung wie in Beispiel i. Man erhält ein gelbliches, klar durchsichtiges, in schwachen Alkalien leicht lösliches Harz.2. That by briefly heating i i o parts of m-cresol and go parts Formaldehyde (3%) in the presence of small amounts of a catalyst (hydrochloric acid) received Condensation product becomes more concentrated in 23o parts Sodium hydroxide solution (from 4.o ° B6) and zoo parts of water dissolved and slowly at about -8o ° 95 pieces. Chlaracetic acid entered. After the implementation has ended, the work-up takes place as in example i. A yellowish, clearly transparent, in faint color is obtained Resin readily soluble in alkalis.

;. Zoo Teile des durch Kondensation von Yylenol (aus technischem Nylidin gewonnen) mit Benzaldchyd erhaltenen schmelzbaren Kondensationsproduktes werden in 3oo Teilen Alkohol, gelöst, igo Teile ß-Brompropionsäure hinzugefügt und in die siedende Lösung langsam 22o Teile konzentrierte Natronlauge eingetragen. Nach beendigter Umsetzung wird der Alkohol abdestilliert, der schwach alkalische Rückstand mit Wasser verdünnt und wie in den vorhergehenden Beispielen aufgearbeitet. Man erhält ein in schwachen Alkalien leicht lösliches Harz.;. Zoo parts of the by condensation of Yylenol (from technical nylidine obtained) with benzaldehyde obtained fusible condensation product dissolved in 300 parts of alcohol, added igo parts of ß-bromopropionic acid and added to the boiling solution slowly entered 220 parts of concentrated sodium hydroxide solution. After finished Reaction, the alcohol is distilled off, the weakly alkaline residue with water diluted and worked up as in the previous examples. One receives a Resin readily soluble in weak alkalis.

¢. i.lo Teile des durch Kondensation von Tetrahydro-a-naphthol mit Parald6hyd entstandenen Produktes werden in einer alko-, holischen Lösung von - ¢o Teilen Ätznatron gelöst, die Lösung zum Sieden erhitzt und langsam 135 Teile chlormalonsaures Natrium eingetragen. Nach beendigter Umsetzung wird der Alkohol abdestilliert und die Masse wie im Beispiel 3 aufgearbeitet. Man erhält ein in schwachen Alkalien leicht lösliches Harz. 5. ioo Teile des Kondensationsproduktes aus Phenol und Formaldehyd werden in 25o Teilen Natronlauge von 4.o° B6, die 8o Teile Atznatron enthält, gelöst und in die siedende Lösung langsam 65 Teile Dichloressigsäure eingetragen. Nach erfolgter Umsetzung wird das Produkt wie in den Beispielen i und 2 aufgearbeitet. Man erhält ein in Soda leicht lösliches Harz.¢. i.lo parts of the by condensation of tetrahydro-a-naphthol with Parald6hyd resulting product are in an alcoholic, holic solution of - ¢ o parts of caustic soda dissolved, the solution heated to boiling and slowly 135 parts sodium chloromalonic acid entered. When the reaction is complete, the alcohol is distilled off and the mass worked up as in Example 3. You get one in weak Resin readily soluble in alkalis. 5. 100 parts of the condensation product from phenol and formaldehyde are in 25o parts caustic soda at 40 ° B6, the 80 parts caustic soda contains, dissolved and slowly introduced 65 parts of dichloroacetic acid into the boiling solution. After the reaction has taken place, the product is worked up as in Examples i and 2. A resin which is readily soluble in soda is obtained.

Säuert man die nach der Umsetzung erhaltenen neutralen bzw. schwach alkalischen Lösungen nicht an, sondern verfährt so, daß man die wäßrigen Lösungen der als Natriumverbindung vorliegenden Harze unmittelbar zur Trockne eindampft (offen oder im Vakuum), so erhält man die Harze in einer wasierlöslichen Form. Sie können dann ohne Zusatz von Soda oder Boras technisch verwandt werden.If the neutral or weakly obtained after the reaction is acidified alkaline solutions not, but proceeds in such a way that the aqueous solutions of the resins in the form of sodium compounds are evaporated to dryness immediately (open or in a vacuum), the resins are obtained in a wash-soluble form. You can can then be used technically without the addition of soda or boras.

Claims (1)

PATLNTANSPRUCi1: Abänderung des durch Patent 391 539, Zusatz zum Patent 386 733, geschützten Verfahrens, darin bestehend, daß man zwecks Darstellung von Derivaten harzartiger Kondensationsprodukte aus Phenolen und Aldehyden liier unverändert schmelzbare, harzartige Kondensationsprodukte aus Phenolen und Aldehyden mit einem Molekül einer Halogenfettsäure behandelt.PATLNTANSPRUCi1: Modification of patent 391 539, addition to patent 386 733, protected process, consisting in the fact that one for the purpose of representation of Derivatives of resinous condensation products from phenols and aldehydes remain unchanged fusible, resinous condensation products of phenols and aldehydes with a Molecule of a halogen fatty acid treated.
DEF46027D 1920-01-14 1920-01-14 Process for the preparation of derivatives of resinous condensation products from phenols and aldehydes Expired DE449276C (en)

Priority Applications (1)

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DEF46027D DE449276C (en) 1920-01-14 1920-01-14 Process for the preparation of derivatives of resinous condensation products from phenols and aldehydes

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655490A (en) * 1950-06-03 1953-10-13 Dow Chemical Co Catalytic hardening of phenol-formaldehyde resins and compositions comprising same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655490A (en) * 1950-06-03 1953-10-13 Dow Chemical Co Catalytic hardening of phenol-formaldehyde resins and compositions comprising same

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