| abstract |
The invention relates to novel hydroxybenzyl-substituted 1,2,4-triazolidine-3,5-diones. These can be prepared by reaction of 1,2,4-triazolidine-3,5-diones with formaldehyde and phenols or by reaction of 1,2,4-triazolidine-3,5-diones with formaldehyde-amine-phenol condensates. The hydroxybenzyl-substituted 1,2,4-triazolidine-3,5-diones can be employed for the modification of melamine resins. Melamine resins modified in this way can be used in coatings for sheet metals. |