EPOXY RESIN BASED POWDER COATING COMPOSITION

摘要

An epoxy resin based powder coating composition which comprises: (A) 100 parts by weight of a mixed epoxy resin having a softening point of 60.degree.-75.degree.C which consists of 50 to 70 wt% of a bisphenol A type epoxy resin having a number-average molecular weight of 900 to 1,200 and 30 to 50 wt% of a cresol novolak epoxy resin; (B) 5 to 80 parts by weight of a phenolic novolak resin; (C) 0.5 to 5 parts by weight of triphenylphosphine; (D) 60 to 200 parts by weight of an inorganic powder; and (E) 0.01 to 2 parts by weight of a microfine silica powder. The epoxy resin based powder coating composition can be coated on electrical and electronic components at 90.degree.-100.degree.C with retaining the high moisture resistance, storage stability and free-flowing properties.