AQUEOUS SOLUTIONS OF ETHERIFIED DICYANDIAIDE-FORMALDEHYDE REACTION PRODUCTS

Aqueous solutions of products of the reaction of dicyandiamide with formaldehyde in which at least 30% of the N-methylol groups thereof have been etherified, have a longer shelf life and better water-dilutability than corresponding solutions of reaction products containing exclusively non-etherified...

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Hauptverfasser:	SALMAN DERMEIK, REINHOLD BRAUN, RUDOLF MANGOLD, KARL-HEINZ LEMMER, KAESTELE XAVER
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR IMPREGNATING OR COATING OF PAPER LAUNDERING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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Beschreibung
Zusammenfassung:	Aqueous solutions of products of the reaction of dicyandiamide with formaldehyde in which at least 30% of the N-methylol groups thereof have been etherified, have a longer shelf life and better water-dilutability than corresponding solutions of reaction products containing exclusively non-etherified N-methylol groups. The solutions have a pH of from 4.5 to 8.5 and additionally contain an acid and/or a salt thereof. The solutions, if desired after dilution or mixing with other solutions, are suitable for flameproofing fibre material, in particular cellulose material.