DE1226301B - Process for the production of polycondensates by reacting dicyandiamide, guanidine chlorohydrate and formaldehyde - Google Patents
Process for the production of polycondensates by reacting dicyandiamide, guanidine chlorohydrate and formaldehydeInfo
- Publication number
- DE1226301B DE1226301B DEF43777A DEF0043777A DE1226301B DE 1226301 B DE1226301 B DE 1226301B DE F43777 A DEF43777 A DE F43777A DE F0043777 A DEF0043777 A DE F0043777A DE 1226301 B DE1226301 B DE 1226301B
- Authority
- DE
- Germany
- Prior art keywords
- guanidine
- formaldehyde
- chlorohydrate
- dicyandiamide
- polycondensates
- 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.)
- Pending
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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
- C08G12/14—Dicyandiamides; Dicyandiamidines; Guanidines; Biguanidines; Biuret; Semicarbazides
Landscapes
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von Polykondensaten durch Umsetzen von Dicyandiamid, Guanidinchlorhydrat und Formaldehyd Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Polykondensaten durch Umsetzen von Dicyandiamid, Guanidinchlorhydrat und Formaldehyd in Gegenwart von Ammoniumsalzen in wäßrigem Medium unter Erhitzen und anschließendes Neutralisieren, das dadurch gekennzeichnet ist, daß das Molverhältnis zwischen Dicyandiamid, Guanidinchlorhydrat und Formaldehyd 1: 1: 3,2 bis 3,4 beträgt.Process for the production of polycondensates by reacting dicyandiamide, Guanidine chlorohydrate and formaldehyde The invention relates to a process for Production of polycondensates by reacting dicyandiamide and guanidine chlorohydrate and formaldehyde in the presence of ammonium salts in an aqueous medium with heating and then neutralizing, which is characterized in that the molar ratio between dicyandiamide, guanidine chlorohydrate and formaldehyde is 1: 1: 3.2 to 3.4.
Die erfindungsgemäß erhaltenen Umsetzungsprodukte zeichnen sich vor den im Beispiel 2 der deutschen Patentschrift 859 439 beschriebenen, aus Dicyandiamid, Guanidinsalzen und Formaldehyd im Molverhältnis 1 : 2: 4 hergestellten Umsetzungsprodukten dadurch aus, daß sie bei ihrer Verwendung als Mittel zur Verbesserung der Echtheitseigenschaften von Direktfärbungen mit hierbei üblicherweise zur Anwendung gelangenden Appreturmitteln, insbesondere mit Schiebefestmitteln auf der Grundlage von Silikaten und mit Hydrophobiermitteln auf der Grundlage von Silikonen oder Zirkonsalzen, verträglich sind; sie können infolgedessen mit derartigen Appreturmitteln in einem Bade gleichzeitig benutzt werden, ohne daß Ausfiockungen auftreten. The reaction products obtained according to the invention stand out those described in Example 2 of German Patent 859 439, from dicyandiamide, Reaction products produced by guanidine salts and formaldehyde in a molar ratio of 1: 2: 4 characterized in that they are used as a means of improving the fastness properties of direct dyeing with the finishing agents usually used, in particular with anti-slip agents based on silicates and with water repellants based on silicone or zirconium salts, are compatible; you can consequently used simultaneously with such finishing agents in one bath without flocculation occurring.
Beispiel Eine Mischung aus 84g Dicyandiamid (1 Mol), 25 g Ammoniumchlorid und 325 g einer 300/0eigen wäßrigen Formaldehydlösung (3,25 Mol) setzt man unter Rühren zu 95,5 g Guanidinchlorhydrat (1 Mol) hinzu, die dadurch hergestellt waren, daß 42 g Dicyandiamid (0,5 Mol) und 64 g Ammoniumchlorid unter Rühren zunächst 30 Minuten auf 210 bis 2200 C erhitzt und nach dem Abkühlen auf 180 bis 190"C mit 50 g Wasser versetzt wurden. Anschließend wird die Reaktionsmischung noch 5 Stunden auf 92bis95°C erhitzt und dann mit etwa 12 bis 15 ccm einer 20°/Oigen wäßrigen Natriumcarbonatlösung neutralisiert. Example A mixture of 84 g of dicyandiamide (1 mol), 25 g of ammonium chloride and 325 g of a 300/0 aqueous formaldehyde solution (3.25 mol) are added Stir to 95.5 g of guanidine chlorohydrate (1 mole) prepared by that 42 g of dicyandiamide (0.5 mol) and 64 g of ammonium chloride with stirring initially 30 Minutes to 210 to 2200 C and after cooling to 180 to 190 "C with 50 g of water were added. The reaction mixture is then used for a further 5 hours heated to 92 to 95 ° C and then with about 12 to 15 ccm of a 20% aqueous sodium carbonate solution neutralized.
Zum Nachweis des technischen Fortschritts des erfindungsgemäßen Verfahrens gegenüber dem Verfahren der deutschen Patentschrift 895 439 wird die Verträglichkeit des erhaltenen Umsetzungsproduktes an folgenden Fällen dargelegt: Versetzt man eine Lösung von 5 ccm eines auf der Grundlage von Silikaten aufgebauten handelsüblichen Schiebefestmittels in 15 ccm Wasser bzw. eine Emulsion von 5 ccm eines auf der Grundlage von Silikonen oder Zirkonsalzen aufgebauten handelsüblichen Hydrophobiermittels in 15 ccm Wasser mit 5 ccm der gemäß Absatz 1 erhaltenen Reaktionsmischung, so bleiben die Lösungen bzw. Emulsionen während mehrerer Tage homogen. Im Gegensatz dazu führt ein Umsetzungsprodukt, das gemäß den Angaben des Beispiels 2 der deutschen Patentschrift 895 439 aus Dicyandiamid, Guanidinsalzen und Formaldehyd im Molverhältnis 1 : 2: 4 in Gegenwart von Ammoniumsalzen hergestellt ist, mit den genannten Appreturmitteln zu Ausfällungen. To demonstrate the technical progress of the method according to the invention compared to the process of German patent specification 895 439, the compatibility of the reaction product obtained is shown in the following cases: If one is added Solution of 5 cc of a commercially available one based on silicates Anti-slip agent in 15 cc of water or an emulsion of 5 cc of one on the basis of silicones or zirconium salts made up of commercially available water repellants in 15 cc of water with 5 cc of the reaction mixture obtained in accordance with paragraph 1 remain as it is the solutions or emulsions homogeneous for several days. In contrast, leads a reaction product which, according to the information in Example 2 of the German patent 895 439 from dicyandiamide, guanidine salts and formaldehyde in a molar ratio of 1: 2: 4 is made in the presence of ammonium salts, with the mentioned finishing agents to precipitations.
Bemerkenswert ist auch, daß das erhaltene Umsetzungsprodukt mit Alkalisulfaten keine Fällungen gibt. It is also noteworthy that the reaction product obtained with alkali sulfates there are no precipitations.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF43777A DE1226301B (en) | 1964-08-18 | 1964-08-18 | Process for the production of polycondensates by reacting dicyandiamide, guanidine chlorohydrate and formaldehyde |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF43777A DE1226301B (en) | 1964-08-18 | 1964-08-18 | Process for the production of polycondensates by reacting dicyandiamide, guanidine chlorohydrate and formaldehyde |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1226301B true DE1226301B (en) | 1966-10-06 |
Family
ID=7099731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF43777A Pending DE1226301B (en) | 1964-08-18 | 1964-08-18 | Process for the production of polycondensates by reacting dicyandiamide, guanidine chlorohydrate and formaldehyde |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1226301B (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE895439C (en) * | 1951-07-10 | 1953-11-02 | Bayer Ag | Improvement of the fastness properties of direct dyeing and the like like |
-
1964
- 1964-08-18 DE DEF43777A patent/DE1226301B/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE895439C (en) * | 1951-07-10 | 1953-11-02 | Bayer Ag | Improvement of the fastness properties of direct dyeing and the like like |
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