| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive retainer made of a synthetic resin having a moderate heat resistance and an excellent resistance to gas and chemicals such as oxygen causing deterioration. SOLUTION: After the retainer 4 is injected and molded using 66 nylon reinforced with glass fiber, the retainer 4 is obtained by forming a specified epoxy resin cured coating film onto the surface of obtained molding. The epoxy resin cured coating film is formed by using a two-component epoxy resin comprising an epoxy resin having a glycidylamine moiety derived from metaxylylenediamine, and an amine-based curing agent comprising a reaction product of metaxylylenediamine or paraxylylenediamine and acrylic acid, methacrylate, a derivative of acrylic acid or a derivative of methacrylic acid. COPYRIGHT: (C)2011,JPO&INPIT
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