OUTDOOR DURABLE POWDER COATING COMPOSITIONS

摘要

A semi-crystalline polyglycidylester obtainable by glycidation of the acid groups of a semi-crystalline acid functional polyester the latter being a reaction product of at least compound(s) A and compound(s) B, wherein compound A is a straight chain aliphatic alpha, omega-dicarboxylic acid having at least 6 carbon atoms, and wherein compounds B is a straight chain aliphatic alpha, omega-primary diol having at least 4 carbon atoms, said reaction product having an acid content of from molecular weight of at least 500, a melting temperature (Tm) by Differential Scanning Calorimetry of of 2 or more and essentially no reactive groups other than carboxyl groups.