| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a synthetic resin pipe which can be easily recycled, and demonstrates excellent conspicuity in a dark place while limiting the cost increase even if the pipe is long, without reducing the life time of a molding tool or a molding machine. <P>SOLUTION: A synthetic resin pipe (1) comprises a first part (1k) which is formed in a tubular shape having a predetermined length (L) from a first synthetic resin material; and a second part (1f) formed from a second synthetic material made by adding phosphorescent agent to the first synthetic material at a higher mass rate than the first synthetic material, and extending between both ends of the first part (1k) while exposing externally at a predetermined width (Lg). <P>COPYRIGHT: (C)2013,JPO&INPIT |
