FIRE-RESISTANT COATINGS CAN FORM CROSS-BONDS AND FIRE-RESISTANT BASE COATINGS CONSISTING OF THIS PRODUCT

Abstract

The invention relates to a crosslinkable flame-retardant coating consisting of the following components: a) a plant polymer containing hydroxyl groups, wherein the number of hydroxyl groups is between 80 and 800; b) a polyol containing at least three hydroxyl groups; c) an ammonium polyphosphate compound; d) a substrate polymer chosen from polycarbamate resins or polyine-bearing carboxyl groups; and e) a crosslinking agent for crosslinking the substrate polymer chosen from a compound containing two or more aldehyde, acetal, or hemiacetal aldehyde groups, or polycarbodiamide. This crosslinkable flame-retardant coating improves the overall appearance of the crosslinked substrate coating and simultaneously improves its flame resistance.