| 摘要 |
PURPOSE: To provide a resin compsn. for laser marking enabling durable and sharp display and electronic parts using the same. CONSTITUTION: A resin compsn. contains a metal compd. discolored by the irradiation with laser beam, an antirust agent and a resin. The surface of the mental compd. is covered with the antirust agent. Further, the resin has a property cured by either one of ultraviolet rays, visible light and electron beam. |
