DE402996C - Process for the preparation of resinous condensation products - Google Patents
Process for the preparation of resinous condensation productsInfo
- Publication number
- DE402996C DE402996C DEA36554D DEA0036554D DE402996C DE 402996 C DE402996 C DE 402996C DE A36554 D DEA36554 D DE A36554D DE A0036554 D DEA0036554 D DE A0036554D DE 402996 C DE402996 C DE 402996C
- Authority
- DE
- Germany
- Prior art keywords
- preparation
- condensation products
- formaldehyde
- resinous condensation
- resinous
- 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
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
- C08G6/00—Condensation polymers of aldehydes or ketones only
- C08G6/02—Condensation polymers of aldehydes or ketones only of aldehydes with ketones
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)
- Phenolic Resins Or Amino Resins (AREA)
Description
Verfahren zur Darstellung harzartiger Kondensationsprodukte. Zur Herstellung von harzarti en Konden-9 sationsprodukten mit Hilfe von Forinaldehyd werden in erster Linie phenolartige Substanzen verwendet. Es ist dann auch vorgeschlagen worden, Aceton mit Formaldehyd zu einer harzartigen Substanz zu kondensieren. Man erhält hier jedoch orangeg-,elbe, unschmelz-.bare Produkte, welche in den gebräuchlichen Lösungsmitteln außerordentlich schwer lös-]ich, in Leinöl dagegen völlig unlöslich sind, so daß dieselben keine praktische Verwendung gefunden haben.Process for the preparation of resinous condensation products. For the production of resinous condensation products with the help of foraldehyde are primarily Line used phenolic substances. It has then also been suggested To condense acetone with formaldehyde to form a resinous substance. You get Here, however, orange-yellow, same-colored, infusible products, which are commonly used Extremely difficult to dissolve in solvents, but completely insoluble in linseed oil so that they have not found practical use.
Im Gegensatz hierzu wurde nun gefunden, daß fettaromatische Ketone, z. B. Acetophenon, Äthylphenylketon, Methylnaphvlketon usw., mit Formaldehyd oder formald.ehydabspaltenden Substanzen bei Gegenwart von alkalischen Kondensationsmineln 1-.nschmelzbare, harzartigge Produkte ergeben. Dieselben stellen helle, springharte Substanzen dar '. die löslich sind in aromatischen Kohlen,wasserstoffen und deren Halogenderivaten, Tetrahydronaphtalin, Tetrachlorkohlenstoff, Trichloräthylen, Aceton, Essigester, Cyclohexanol u. dgl., ferner in Leinöl. Die mit Hilfe dieser Harze erhaltenen Aufstriche zeigen eine sehr ute Lichtbeständ'-Z, 9 keit, so daß die Produkte als Ersatz für ed!e, Harze brauchbar sind.In contrast, it has now been found that fatty aromatic ketones, e.g. B. acetophenone, ethylphenyl ketone, methylnaphylketone, etc., with formaldehyde or formaldehyde-releasing substances in the presence of alkaline condensation minerals 1-.nschmelzbare, resinous products result. They represent bright, hard-spring substances. which are soluble in aromatic coals, hydrogen and their halogen derivatives, tetrahydronaphthalene, carbon tetrachloride, trichlorethylene, acetone, ethyl acetate, cyclohexanol and the like, and also in linseed oil. The spreads obtained using these resins exhibit a very ute Lichtbeständ'-Z, 9 ness, so that the products to replace ed! E, resins are useful.
Es ist zwar schon bekannt, daß man aus Cyclohexanon und Formaldehyd ein lösliches Kunstharz herstellen kann-, Cyclohexanon stellt jedoch ein ganz bestimmtes, nämlich ein zyklisches Keton eines hydrierten Benzolkohlenwasserstoffes dar. Es konnte aus der Fähigkeit dieses einzelnen Ketones keinesfalls der Schluß gezogen werden, daß allgemein fettaromatische Ketone, deren Konstitution von der des Cyclohexanons grandverschieden ist, mit Hilfe von Formaldehyd oder formaldehydabspaltenden Mitteln in brauchbare, lichtbeständige Harze übergeführt werden konnten.It is already known that cyclohexanone and formaldehyde can be used can produce a soluble synthetic resin - but cyclohexanone is a very specific one, namely a cyclic ketone of a hydrogenated benzene hydrocarbon. It could in no way draw a conclusion from the ability of this single ketone be that generally fatty aromatic ketones whose constitution differs from that of cyclohexanone is very different, with the help of formaldehyde or formaldehyde-releasing agents could be converted into usable, lightfast resins.
Beisp iel: 6o Teile Acetopfienon, 51 Teile Formaldehyd 3oprozentig werden unter Zusatz von 6 Teilen konz. Kalilauge längere Zeit zum Sieden erhitzt. Die geringen nicht kondensierten Anteile werden durch Wasserdampfdestillation entfernt und das kebildete Harz nach Waschen mit Wasser bei höherer Temperatur entwässert. Erhalten wird ein helles, springhartes Harz, welches die oben angeführten Eigenschaften zeigt.Example: 6o parts of acetopfienone, 51 parts of formaldehyde 3% with the addition of 6 parts of conc. Potash lye heated to the boil for a long time. The small non-condensed fractions are removed by steam distillation and the resin formed is dehydrated after washing with water at a higher temperature. A light-colored, spring-hard resin is obtained which shows the properties listed above.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA36554D DE402996C (en) | 1921-11-03 | 1921-11-03 | Process for the preparation of resinous condensation products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA36554D DE402996C (en) | 1921-11-03 | 1921-11-03 | Process for the preparation of resinous condensation products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE402996C true DE402996C (en) | 1924-09-19 |
Family
ID=6929699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA36554D Expired DE402996C (en) | 1921-11-03 | 1921-11-03 | Process for the preparation of resinous condensation products |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE402996C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE892975C (en) * | 1940-10-13 | 1953-10-12 | Chemische Werke Huels Ges Mit | Process for the production of resins |
| DE897484C (en) * | 1941-10-30 | 1953-11-23 | Bayer Ag | Process for the preparation of resinous condensation products from fatty aromatic ketones and aldehydes |
-
1921
- 1921-11-03 DE DEA36554D patent/DE402996C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE892975C (en) * | 1940-10-13 | 1953-10-12 | Chemische Werke Huels Ges Mit | Process for the production of resins |
| DE897484C (en) * | 1941-10-30 | 1953-11-23 | Bayer Ag | Process for the preparation of resinous condensation products from fatty aromatic ketones and aldehydes |
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