AQUEOUS SOLUTION OF ETHERIFIED DICYANDIAMIDE/FORMALDEHYDE REACTION PRODUCT

摘要

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.