DE357091C - Process for the preparation of resinous products - Google Patents
Process for the preparation of resinous productsInfo
- Publication number
- DE357091C DE357091C DEB94373D DEB0094373D DE357091C DE 357091 C DE357091 C DE 357091C DE B94373 D DEB94373 D DE B94373D DE B0094373 D DEB0094373 D DE B0094373D DE 357091 C DE357091 C DE 357091C
- Authority
- DE
- Germany
- Prior art keywords
- preparation
- resinous products
- parts
- resin
- products
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung von harzartigen Produkten. In dem Patent 337993 ist ein Verfahren zur Darstellung von wertvollen harzartigen Produkten beschrieben, das darin besteht, daß man monocyclische Ketone mit alkalischen Kondensationsmitteln unter so energischen Bedingungen behandelt, daß die Reaktion über die bekannten einfachen Köndensationsprodukte hinaus zu harzartigen, in der Kälte harten Produkten führt.Process for the preparation of resinous products. Patent 337993 describes a process for the preparation of valuable resinous products which consists in treating monocyclic ketones with alkaline condensing agents under conditions so severe that the reaction leads, beyond the known simple condensation products, to resinous products which are hard in the cold .
Es wurde nun gefunden, daß man statt alkalischer Kondensationsmittel unter denselben Bedingungen auch mineralsaure und neutrale verwenden kann.It has now been found that instead of alkaline condensation agents can also use mineral acid and neutral under the same conditions.
Beispiel i.Example i.
io Teile Cyclohexanon werden mit 2o Teilen 5o prozentiger Schwefelsäure 48 Stunden am Rückflußkühler gekocht. Man treibt alsdann etwa noch unverändertes Cyclohexanon mit Wasserdampf ab, trennt das zurückbleibende Harz von der Schwefelsäure und wäscht es mit Wasser gründlich aus. Das Produkt wird alsdann durch Schmelzen von Wasser und von flüchtigen Bestandteilen befreit; man erhält nach dem Erkalten ein bernsteingelbes Harz, das in Alkohol ziemlich schwer, in Renzol, Leinöl und vielen anderen Lösungsmitteln leicht löslich ist. Statt wässeriger Schwefelsäure kann man auch alkoholische verwenden.10 parts of cyclohexanone are mixed with 20 parts of 5o percent sulfuric acid Boiled for 48 hours on the reflux condenser. One then drives something that is still unchanged Cyclohexanone off with steam, separates the remaining resin from the sulfuric acid and wash it off thoroughly with water. The product is then melted freed from water and volatile components; obtained after cooling an amber-yellow resin that is quite heavy in alcohol, in renzol, linseed oil and is easily soluble in many other solvents. Instead of aqueous sulfuric acid you can also use alcoholic ones.
Beispiel 2.Example 2.
j:oo Teile Cyclohexanon werden mit 5o Teilen Chlorzink und einer geringen Menge konzentrierter Salzsäure so lange auf etwa 140 bis 170" erhitzt, bis die Harzbildung beendet ist. Das Reaktionsprodukt wird in der in Beispiel i angegebenen Weise verarbeitet. Man erhält ein schönes hellgelbes Harz von ähnlichen Eigenschaften wie in Beispiel i.j: oo parts of cyclohexanone are mixed with 50 parts of zinc chloride and a small amount Amount of concentrated hydrochloric acid heated to about 140 to 170 "until the resin forms is finished. The reaction product is processed in the manner indicated in Example i. A beautiful, light yellow resin with properties similar to those in Example is obtained i.
Arbeitet man bei Abwesenheit von Salzsäure mit Chlorzink allein, so tritt gleichfalls Harzbüdung ein.If you work with zinc chloride alone in the absence of hydrochloric acid, then resin build-up also occurs.
Analog verfährt man bei Verwendung anderer mineralsauer oder neutraler Kondensationsmittel sowie anderer monoeyclischer Ketone.The same procedure is used when using other mineral acids or more neutral ones Condensing agents and other mono-cyclic ketones.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB94373D DE357091C (en) | 1919-06-13 | 1920-05-21 | Process for the preparation of resinous products |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE337993T | 1919-06-13 | ||
DEB94373D DE357091C (en) | 1919-06-13 | 1920-05-21 | Process for the preparation of resinous products |
Publications (1)
Publication Number | Publication Date |
---|---|
DE357091C true DE357091C (en) | 1922-08-17 |
Family
ID=6987535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB94373D Expired DE357091C (en) | 1919-06-13 | 1920-05-21 | Process for the preparation of resinous products |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE357091C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6114434A (en) * | 1997-10-06 | 2000-09-05 | Vianova Resins Ag | Water-dilutable resins, process for preparing them, and their use |
-
1920
- 1920-05-21 DE DEB94373D patent/DE357091C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6114434A (en) * | 1997-10-06 | 2000-09-05 | Vianova Resins Ag | Water-dilutable resins, process for preparing them, and their use |
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