| 摘要 |
An epoxy resin powder coating composition is disclosed, which comprises 100 parts by weight of bisphenol A type mixed resin having a number average molecular weight from 1,700 to 4,500 comprising a bisphenol A type epoxy resin (A) having a number average molecular weight from 2,500 to 8,000 and a bisphenol A type epoxy resin (B) having a number average molecular weight from 300 to 1,000, 5 to 20 parts by weight of polyvinyl butyral resin or polyvinyl formal resin, a hardener, and a filler, wherein said hardener is a mixture of an imidazole base high hardener and an imidazole base low hardener.
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