POLYESTER RESIN AND COMPOSITION FOR POWDER COATING, AND POWDER COATING USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a polyester resin and a composition for powder coating which can produce a matting coating film excellent in smoothness without yellowing with the lapse of time and a powder coating using the composition. SOLUTION: The resin consisting essentially of an aromatic dicarboxylic acid and an aliphatic diol is characterized in that an intrinsic viscosity is 0.10-0.30 dl/g, an acid value is 10-30 mg KOH/g and a hydroxy value is 7 mg KOH/g or more.