composição de material de revestimento de poliuretano, métodos de revestimento em multiestágios que utilizam estas composições de material de revestimento, e também o uso da composição de material de revestimento como verniz e material de revestimento pigmentado, e aplicação de método de revestimento para repintura automotiva e/ou para o revestimento de substratos plásticos e/ou de veículos utilitários

摘要

Disclosed are coating material compositions comprising at least one polyhydroxyl group-containing compound (A), at least one polyisocyanate group-containing compound (B) having free and/or blocked isocyanate groups, at least one catalyst (D) based on a zinc-amidine complex which comprises the reaction product of 1.0 moles of at least one zinc(II) biscarboxylate with more than 2.0 moles of at least one amidine where R5=hydrogen and R1, R2, R3, and R4 are each identical or different radicals, R1 and R3 being hydrogen or an alkyl radical or an aryl radical, and R2 and R4 being an alkyl radical or an aryl radical, and at least one monomeric aromatic, optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a &pgr;-electron system.