Low temperature heat-curable powder coating composition comprising a crystalline polyester resin, an amorphous resin and a peroxide

摘要: Heat-curable powder coating compositions are provided which include i) at least one crystalline polyester resin present in an amount of 7.5 wt %; ii) amorphous most 92.5 and iii) peroxide 0.65 parts hundred i)+ii) (pph), wherein the has 2-butenedioic acid ethylenic unsaturations and/or unsaturations. The may be cured to acceptable degree low temperature, e.g., 130° C. /20 minutes offering coatings that exhibit enhanced flexibility good adhesion. In addition, can suitably used on heat- non heat-sensitive substrates, even if composition is highly pigmented.