abstract |
The invention relates to thermosetting powder coating compositions, which consist of mixtures of aromatic polyesters and all aliphatic polyesters derived from trans 1,4-cyclohexane dicarboxylic acid and 1,4 butanediol, which , with a blocked polyisocyanate, when applied to a substrate and after curing, form a surface coating having good characteristics of shine, impact resistance, flexibility and resistance to weathering. |