Improvements to the procedures for stabilising aqueous or aqueous-methanolic formaldehyde solutions.

摘要

Improvements in the stabilization processes of aqueous or aqueous-methanol formaldehyde solutions, of the type of those obtaining a benzoguanamine solution of methylol, by dissolving benzoguanamine in a formaldehyde solution essentially characterized in that a 2,4-diamino 1 is prepared in advance., 3,5-traiazine, which in position 6 is replaced by an aliphatic residue of 7 to 9 carbon atoms, which is heated to a temperature of approximately 60º c, between 30 minutes and 2 hours according to percentages to be subsequently incorporated into a solution of formaldehyde in an amount ranging from 0.005 to 0.2% (Machine-translation by Google Translate, not legally binding)