| 摘要 |
PURPOSE:To increase an internal loss, and to improve a weatherability, a solvent resistance, an adhesive property, and a moldability by generating a speaker edge molding a resin film made of a thermoplastic polyester elastomer. CONSTITUTION:Polymers A and B shown in equations I and II are used as the thermoplastic polyester elastomer. A flexibility, etc., is adjusted by a ratio between the polymers A and B, and the ratio between (p) and (q) in the equations I and II, and a heat molding is applied in a prescribed shape, then the edge is completed. Thereby, the internal loss can be increased and the weatherability, the solvent resistance, the adhesive property, and the moldability can be improved.
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